Registration Statement - Specified Transactions (Form S-3)

As filed with the Securities and Exchange Commission on May 26, 2026

Registration No. 333-

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-3

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

CALLAN JMB INC.

(Exact name of registrant as specified in its charter)

Nevada		99-0931141
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification Number)

244 Flightline Drive

Spring Branch, Texas 78070-6241

(830) 438-0395

(Address, including zip code, and telephone number, including area code of registrant's principal executive offices)

Mr. Wayne Williams

Chief Executive Officer

Callan JMB Inc.

244 Flightline Drive

Spring Branch, Texas 78070-6241

(830) 438-0395

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copies to:

Ross David Carmel, Esq.

Barry P. Biggar, Esq

Mohit Agrawal, Esq.

Sichenzia Ross Ference Carmel LLP

1185 Avenue of the Americas, 26^th Floor

New York, New York 10036

(212) 930-9700

From time to time after the effective date of this registration statement

(Approximate date of commencement of proposed sale to the public)

If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box. ☐

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box. ☒

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. ☐

If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☐	Accelerated filer	☐
Non-accelerated filer	☒	Smaller reporting company	☒
		Emerging growth company	☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

The registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment that specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933, as amended, or until the registration statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.

EXPLANATORY NOTE

This registration statement contains two prospectuses:

●

a base prospectus, which covers the offering, issuance and sale by the registrant of up to a maximum aggregate offering price of $200,000,000 of the registrant's common stock, preferred stock, debt securities and/or warrants from time to time in one or more offerings; and

●

an At-The-Market Issuance Sales Agreement (the "ATM Agreement") prospectus supplement covering the offering, issuance and sale by the registrant of up to a maximum aggregate offering price of $5,000,000 of the registrant's common stock that may be issued and sold from time to time under an at-the-market sales agreement with Alexander Capital, L.P.

The base prospectus immediately follows this explanatory note. The specific terms of any securities to be offered pursuant to the base prospectus will be specified in a prospectus supplement to the base prospectus. The ATM Agreement prospectus supplement immediately follows the base prospectus. The $5,000,000 of common stock that may be offered, issued and sold by the registrant under the at-the-market sales agreement prospectus supplement is included in the $200,000,000 of securities that may be offered, issued and sold by the registrant under the base prospectus. Upon termination of the ATM Agreement with Alexander Capital, L.P., any portion of the $5,000,000 included in the ATM Agreement prospectus supplement that is not sold pursuant to the ATM Agreement will be available for sale in other offerings pursuant to the base prospectus and a corresponding prospectus supplement, and if no shares are sold under the ATM Agreement, the full $5,000,000 of securities may be sold in other offerings pursuant to the base prospectus and a corresponding prospectus supplement.

The information in this prospectus is not complete and may be changed. We may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any jurisdiction where such offer or sale is not permitted.

SUBJECT TO COMPLETION, DATED MAY 26, 2026

PROSPECTUS

CALLAN JMB INC.

$200,000,000

Common Stock

Preferred Stock

Debt Securities

Warrants

Rights

Units

From time to time, we may offer and sell up to an aggregate amount of $200,000,000 of any combination of the securities described in this prospectus in one or more offerings at prices and on terms described in this prospectus. We may also offer securities as may be issuable upon conversion, redemption, repurchase, exchange or exercise of any securities registered hereunder, including any applicable anti-dilution provisions.

This prospectus provides a general description of the securities we may offer. Each time we offer securities, we will provide the specific terms of the securities offered in one or more supplements to this prospectus. We may also authorize one or more free writing prospectuses to be provided to you in connection with these offerings. The prospectus supplement and any related free writing prospectus may also add, update or change information contained in this prospectus. You should carefully read this prospectus, the applicable prospectus supplement and any related free writing prospectus, as well as any documents incorporated by reference, before you invest in any of the securities being offered.

This prospectus may not be used to consummate a sale of any securities unless accompanied by a prospectus supplement.

Our common stock is listed on the Nasdaq Capital Market under the trading symbol "CJMB." On May 22, 2026, the last reported sale price of our common stock was $0.78 per share. The applicable prospectus supplement will contain information, where applicable, as to any other listing on the Nasdaq Capital Market or any securities market or other exchange of the securities, if any, covered by the applicable prospectus supplement.

We may sell these securities directly to investors, through agents designated from time to time or to or through underwriters or dealers, on a continuous or delayed basis. For additional information on the methods of sale, you should refer to the section titled "Plan of Distribution" in this prospectus. If any agents or underwriters are involved in the sale of any securities with respect to which this prospectus is being delivered, the names of such agents or underwriters and any applicable fees, commissions, discounts or over-allotment options to purchase additional securities will be set forth in a prospectus supplement. The price to the public of such securities and the net proceeds we expect to receive from such sale will also be set forth in a prospectus supplement.

As of the date of this prospectus, the aggregate market value of our outstanding common stock held by non-affiliates, or our public float, was approximately $3,394,649 based on a total of 5,646,118 shares of common stock outstanding, of which 2,552,368 shares were held by non-affiliates, at a price of $1.33 per share, which was the highest closing price of our common stock on the Nasdaq Capital Market within the 60 days prior to the date of this prospectus. Pursuant to General Instruction I.B.6. of Form S-3, in no event will we sell our securities in a public primary offering in reliance on General Instruction I.B.6. of Form S-3 with a value exceeding one-third of our public float in any 12-calendar-month period so long as our public float remains below $75,000,000. During the 12 calendar months prior to and including the date of this prospectus, we have offered and sold a total of $0 of securities pursuant to General Instruction I.B.6. of Form S-3. Accordingly, based on the foregoing, we are currently eligible under General Instruction I.B.6 of Form S-3 to offer and sell shares of our common stock having an aggregate offering price of up to approximately $1,131,550.

If, subsequent to the date of this prospectus, the aggregate market value of our outstanding common stock held by non-affiliates equals or exceeds $75,000,000, the one-third limitation will no longer apply to additional sales made under this prospectus.

We are a "smaller reporting company" as defined under federal securities laws and, as such, have elected to comply with certain reduced public company reporting requirements.

Investing in our securities involves a high degree of risk. Before making an investment decision, you should review carefully the risks and uncertainties described under the heading "Risk Factors" on page 3 of this prospectus and any similar section contained in the applicable prospectus supplement and in any related free writing prospectus we have authorized for use in connection with a specific offering, and under similar headings in the other documents that are incorporated by reference into this prospectus.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

The date of this prospectus is , 2026.

TABLE OF CONTENTS

	Page
ABOUT THIS PROSPECTUS	1
PROSPECTUS SUMMARY	2
RISK FACTORS	3
CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS	3
USE OF PROCEEDS	3
DESCRIPTION OF CAPITAL STOCK	4
DESCRIPTION OF DEBT SECURITIES	7
DESCRIPTION OF WARRANTS	14
DESCRIPTION OF RIGHTS	16
DESCRIPTION OF UNITS	17
PLAN OF DISTRIBUTION	18
LEGAL MATTERS	20
EXPERTS	20
WHERE YOU CAN FIND MORE INFORMATION	20
INCORPORATION OF CERTAIN INFORMATION BY REFERENCE	20

ABOUT THIS PROSPECTUS

This prospectus is a part of a registration statement on Form S-3 that we have filed with the Securities and Exchange Commission, or SEC, utilizing a "shelf" registration process under the Securities Act of 1933, as amended, or the Securities Act. Under this shelf registration statement, we may, from time to time, offer and sell, either individually or in any combination of the securities described in this prospectus in one or more offerings up to a total aggregate offering price of $200,000,000. This prospectus provides you with a general description of the securities we may offer.

Each time we offer securities under this prospectus, we will provide a prospectus supplement that will contain specific information about the terms of that offering. We may also authorize one or more free writing prospectuses to be provided to you that may contain material information relating to these offerings. The prospectus supplement and any related free writing prospectus that we may authorize to be provided to you may also add, update or change any of the information contained in this prospectus or in any documents that we have incorporated by reference into this prospectus. You should read this prospectus, any applicable prospectus supplement and any related free writing prospectus, together with the information incorporated herein by reference as described under the heading "Incorporation of Certain Information by Reference," before investing in any of the securities offered.

Neither we, nor any agent, underwriter or dealer has authorized any person to give any information or to make any representation other than those contained or incorporated by reference into this prospectus, any applicable prospectus supplement or any related free writing prospectus prepared by or on behalf of us or to which we have referred you. This prospectus, any applicable supplement to this prospectus or any related free writing prospectus do not constitute an offer to sell or the solicitation of an offer to buy any securities other than the registered securities to which they relate, nor do this prospectus, any applicable supplement to this prospectus or any related free writing prospectus constitute an offer to sell or the solicitation of an offer to buy securities in any jurisdiction to any person to whom it is unlawful to make such offer or solicitation in such jurisdiction.

You should not assume that the information contained in this prospectus, any applicable prospectus supplement or any related free writing prospectus is accurate on any date subsequent to the date set forth on the front of the document or that any information we have incorporated by reference is correct on any date subsequent to the date of the document incorporated by reference, even though this prospectus, any applicable prospectus supplement or any related free writing prospectus is delivered, or securities are sold, on a later date.

This prospectus and the information incorporated herein by reference contain summaries of certain provisions contained in some of the documents described herein, but reference is made to the actual documents for complete information. All of the summaries are qualified in their entirety by the actual documents. Copies of some of the documents referred to herein have been filed, will be filed or will be incorporated by reference as exhibits to the registration statement of which this prospectus is a part, and you may obtain copies of those documents as described under the heading "Where You Can Find More Information."

We further note that the representations, warranties and covenants made by us in any agreement that is filed as an exhibit to any document that is incorporated by reference herein were made solely for the benefit of the parties to such agreement, including, in some cases, for the purpose of allocating risk among the parties to such agreements, and should not be deemed to be a representation, warranty or covenant to you. Moreover, such representations, warranties or covenants were accurate only as of the date when made. Accordingly, such representations, warranties and covenants should not be relied on as accurately representing the current state of our affairs.

This prospectus and the documents incorporated by reference in this prospectus contain references to trademarks, trade names and service marks. Solely for convenience, trademarks, trade names and service marks referred to in this prospectus and the documents incorporated by reference in this prospectus may appear without the ^® or ^TM symbols, but such references are not intended to indicate, in any way, that the applicable licensor will not assert, to the fullest extent under applicable law, its rights to such trademarks, trade names and service marks. We do not intend our use or display of other entities' trade names, trademarks or service marks to imply a relationship with, or endorsement or sponsorship of us by, any other entities.

In this prospectus, unless the context otherwise requires, the terms references to "the Company," "Callan," "we," "us" or "our" refer to Callan JMB Inc., a Nevada corporation, and its subsidiaries.

PROSPECTUS SUMMARY

This summary highlights selected information from this prospectus or incorporated by reference in this prospectus and does not contain all of the information that you need to consider in making your investment decision. You should carefully read the entire prospectus, the applicable prospectus supplement and any related free writing prospectus, including the risks of investing in our securities discussed under the section titled "Risk Factors" contained in the applicable prospectus supplement and any related free writing prospectus, and under similar headings in the other documents that are incorporated by reference into this prospectus and the applicable prospectus supplement. You should also carefully read the information incorporated by reference into this prospectus, including our financial statements, and the exhibits to the registration statement of which this prospectus is a part.

Company Overview

Callan JMB is a vertically integrated logistics and fulfillment company which provides thermal management logistics solutions to the life sciences industry through a combination of proprietary packaging, information technology and specialized cold chain logistics knowhow. We provide a system that utilizes advanced predictive technology to revolutionize the supply chain by guaranteeing the safety, effectiveness, and potency of every product handled to ensure product integrity, and to provide immediate response in time-sensitive industries while ensuring environmental responsibility. We view our solutions as disruptive to the "older technologies" of dry ice and liquid nitrogen, in that our solutions are comprehensive and combine our competencies in configurations that are customized to our client's requirements. We provide comprehensive, reliable, and economic alternatives to all existing logistics solutions and services utilized for frozen shipping in the life sciences industry (e.g., personalized medicine, cell therapies, stem cells, cell lines, vaccines, diagnostic materials, semen, eggs, embryos, cord blood, organs, bio-pharmaceuticals, infectious substances, and other commodities that require continuous exposure to cryogenic or frozen temperatures). As part of our services, we provide the ability to monitor, record and archive crucial information for each shipment that can be used for scientific and regulatory purposes.

Our Ship2Q® ultraviolet disinfection process (Safe Hygienic Irradiation Performance Process & Qualification) ensures fitness, thermal reliability, and cleanliness of the system components within the manufacturer specifications equal to new "off-the-shelf" shipper systems. Our systematic Ship2Q® process meets all good current manufacturing practices ("cGMP") and good current distribution practices ("cGDP") compliance standards and generates shipper specific track and trace documentation key to any deployment and reuse. Ship2Q® applies a system of control over the recovery and reuse phase of the logistics loop. We are able to recover and reuse the Greenbox shipper, amortizing its total cost across numerous shipments making it cost-neutral in the first few cycles. Additionally, our sophisticated cloud-based logistics operating platform, which is branded as our "Sentry" system, integrates GPS and precise temperature diagnostics throughout a package's journey, maintaining the efficacy, safety, and quality of temperature-sensitive goods throughout transit-with zero bench time required. The Sentry system supports the management of the entire shipment and logistics process through a single interface, including initial order input, document preparation, customs clearance, courier management, shipment tracking, issue resolution, and delivery. In addition, it provides unique and incisive information dashboards and validation documentation for every shipment. The Sentry platform records and retains a fully documented "chain-of-custody" and, at the client's option, "chain-of-condition" for every shipment, helping ensure that quality, safety, efficacy, and stability of shipped commodities are maintained throughout the process. This recorded and archived information allows our clients to meet exacting requirements necessary for scientific work and for proof of regulatory compliance during the logistics phase.

With extensive experience in quality assurance and quality control, we deliver reliability by anticipating, responding, and overcoming the most complex situations with precision and compassion, providing peace of mind and a comprehensive solution for our customers. This empowers the healthcare and emergency response industries with solutions to ensure temperature-sensitive goods remain within specified parameters throughout transit through tracking mechanisms and predictive technology to ensure its integrity for patients, providers, and their communities.

Corporate Information

We were originally formed as Coldchain Technology Services, LLC, a Texas limited liability company. We reorganized as a holding company to Callan JMB Inc., a Nevada corporation, on February 14 2024. We are headquartered at 244 Flightline Dr., Spring Branch, TX 78070. The Company's website is www.coldchain-tech.com. The information contained in or accessible from our website is not a part of this prospectus, nor is such information incorporated by reference herein, and should not be relied upon in determining whether to make an investment in our securities. We have included our website address in this prospectus solely as an inactive textual reference.

RISK FACTORS

Investing in our securities involves a high degree of risk. You should carefully review the risks and uncertainties described under the heading "Risk Factors" contained in the applicable prospectus supplement and any related free writing prospectus, and under similar headings in our most recent Annual Report on Form 10-K, as updated by our subsequent quarterly and other reports and documents that are incorporated by reference into this prospectus, before deciding whether to purchase any of the securities being registered pursuant to the registration statement of which this prospectus is a part. Each of the risk factors described in the documents referenced above could adversely affect our business, operating results and financial condition, as well as adversely affect the value of an investment in our securities, and the occurrence of any of these risks might cause you to lose all or part of your investment. Additional risks not presently known to us or that we currently deem immaterial may also significantly impair our business operations. Please also read carefully the section below titled "Cautionary Note Regarding Forward-Looking Statements."

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus, each prospectus supplement, and the documents incorporated by reference in this prospectus and each prospectus supplement, contain forward-looking statements within the meaning of federal securities laws, that are based on our management's beliefs and assumptions and on information available to us. All statements other than statements of historical facts are forward-looking statements.

It is important for an investor to understand that these statements involve risks and uncertainties, some of which are beyond our control. These statements relate to the discussion of our business strategies and our expectations concerning future operations, margins, profitability, liquidity, and capital resources and to analyses and other information that are based on forecasts of future results and estimates of amounts not yet determinable. We sometimes use words such as "anticipate," "believe," "continue," "could," "estimate," "expect," "intend," "may," "plan," "potential," "predict," "project," "seek," "should," "think," "will," "would," or the negative of these words or other similar or comparable terms and phrases, including references to assumptions, in the aforementioned documents to identify forward-looking statements, although not all forward-looking statements contain these words. These forward-looking statements are made based on expectations and beliefs concerning future events affecting us and are subject to uncertainties, risks and factors relating to our operations and business environment, all of which are difficult to predict and many of which are beyond our control, that could cause our actual results to differ materially from those matters expressed or implied by these forward-looking statements.

Such risks, uncertainties and other factors also include those listed in the section titled "Risk Factors" and elsewhere in our most recent Annual Report on Form 10-K and our other filings with the SEC. When considering these forward-looking statements, you should keep in mind the cautionary statements in this prospectus. New risks and uncertainties arise from time to time, and we cannot predict those events or how they may affect us. Given these uncertainties, you should not place undue reliance on these forward-looking statements.

The forward-looking statements made in or incorporated by reference in this prospectus relate only to events or information as of the date on which the statements are made. We do not undertake any obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by applicable securities laws.

USE OF PROCEEDS

We will retain broad discretion over the use of the net proceeds from the sale of the securities offered hereby. Except as described in any applicable prospectus supplement or any related free writing prospectus that we may authorize to be provided to you, we currently intend to use the net proceeds from the sale of the securities offered hereby for working capital and general corporate purposes. We will set forth in the applicable prospectus supplement or free writing prospectus our intended use for the net proceeds received from the sale of any securities sold pursuant to the prospectus supplement or free writing prospectus.

DESCRIPTION OF CAPITAL STOCK

As of the date of this prospectus, our authorized capital stock consists of 190,000,000 shares of common stock, par value $0.001 per share, and 10,000,000 shares of preferred stock, par value $0.001 per share. As of the date of this prospectus, 5,646,118 shares of common stock are issued and outstanding, with no shares our preferred stock issued and outstanding.

The following description of our capital stock is a summary and does not purport to be complete. It is subject to, and qualified in its entirety by reference to, our articles of incorporation and our bylaws, each of which has been filed with the SEC, and each of which is incorporated as an exhibit to the registration statement of which this prospectus is a part. This description also summarizes relevant provisions of Nevada law. We encourage you to read our articles of incorporation, our bylaws and the applicable provisions of Nevada law for additional information.

Common Stock

Voting, Dividend and Other Rights. Each outstanding share of common stock entitles the holder to one vote on all matters presented to the shareholders for a vote. Holders of shares of common stock have no cumulative voting, pre-emptive, subscription or conversion rights. All shares of common stock to be issued pursuant to this registration statement will be duly authorized, fully paid and non-assessable. Our board of directors determines if and when distributions may be paid out of legally available funds to the holders. To date, we have not declared any dividends with respect to our common stock. Our declaration of any cash dividends in the future will depend on our board of directors' determination as to whether, in light of our earnings, financial position, cash requirements and other relevant factors existing at the time, it appears advisable to do so. We do not anticipate paying cash dividends on the common stock in the foreseeable future.

Rights Upon Liquidation. Upon liquidation, subject to the right of any holders of the preferred stock to receive preferential distributions, each outstanding share of common stock may participate pro rata in the assets remaining after payment of, or adequate provision for, all our known debts and liabilities.

Majority Voting. The holders of 33 1/3% of the outstanding shares of stock entitled to vote shall constitute a quorum for the transaction of business at any meeting of the shareholders. A plurality of the votes cast at a meeting of shareholders elects our directors. The common stock does not have cumulative voting rights. Therefore, the holders of a majority of the outstanding shares of common stock can elect all of our directors. In general, a majority of the votes cast at a meeting of shareholders must authorize shareholder actions other than the election of directors. Most amendments to our articles of incorporation require the vote of the holders of a majority of all outstanding voting shares.

Preferred Stock

Authority of Board of Directors to Create Series and Fix Rights. Under our articles of incorporation, our board of directors can issue up to 10,000,000 shares of "blank check" preferred stock from time to time in one or more series. The board of directors is authorized to fix by resolution as to any series the designation and number of shares of the series, the voting rights, the dividend rights, the redemption price, the amount payable upon liquidation or dissolution, the conversion rights, and any other designations, preferences or special rights or restrictions as may be permitted by law. Unless the nature of a particular transaction and the rules of law applicable thereto require such approval, our board of directors has the authority to issue these shares of "blank check" preferred stock without shareholder approval.

Anti-Takeover Effects of Certain Provisions of Our Articles of Incorporation, as Amended, and Our Bylaws

Provisions of our articles of incorporation and our bylaws could make it more difficult to acquire us by means of a merger, tender offer, proxy contest, open market purchases, removal of incumbent directors and otherwise. These provisions, which are summarized below, are expected to discourage types of coercive takeover practices and inadequate takeover bids and to encourage persons seeking to acquire control of us to first negotiate with us. We believe that the benefits of increased protection of our potential ability to negotiate with the proponent of an unfriendly or unsolicited proposal to acquire or restructure us outweigh the disadvantages of discouraging takeover or acquisition proposals because negotiation of these proposals could result in an improvement of their terms.

Calling of Special Meetings of Stockholders. Our bylaws provide that special meetings of the stockholders may be called only by (i) our Chairman, (ii) our chief executive officer, (iii) the board of directors pursuant to a resolution adopted by directors representing a quorum of the board of directors or (iv) by the holders of shares entitled to cast not less than 33 1/3% of the votes at the meeting.

Removal of Directors; Vacancies. Our bylaws provide that a director may be removed either for or without cause at any special meeting of stockholders by the affirmative vote of at least a majority of the voting power of the issued and outstanding stock entitled to vote; provided, however, that notice of intention to act upon such matter shall have been given in the notice calling such meeting.

Amendment of Bylaws. The bylaws provide that the bylaws may be altered, amended or repealed at any meeting of the board of directors at which a quorum is present, by the affirmative vote of a majority of the directors present at such meeting.

Preferred Stock. Our articles of incorporation authorize the issuance of up to 10,000,000 shares of preferred stock with such rights and preferences as may be determined from time to time by our board of directors in their sole discretion. Our board of directors may, without stockholder approval, issue series of "blank check" preferred stock with dividends, liquidation, conversion, voting or other rights that could adversely affect the voting power or other rights of the holders of our common stock.

Limitation of Liability and Indemnification Matters

NRS Section 78.7502 provides that a corporation shall indemnify any director, officer, employee or agent of a corporation against expenses, including attorneys' fees, actually and reasonably incurred by him in connection with any the defense to the extent that a director, officer, employee or agent of a corporation has been successful on the merits or otherwise in defense of any action, suit or proceeding referred to Section 78.7502(1) or 78.7502(2), or in defense of any claim, issue or matter therein.

NRS 78.7502(1) provides that a corporation may indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative, except an action by or in the right of the corporation, by reason of the fact that he is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise, against expenses, including attorneys' fees, judgments, fines and amounts paid in settlement actually and reasonably incurred by him in connection with the action, suit or proceeding if he: (a) is not liable pursuant to NRS 78.138; or (b) acted in good faith and in a manner which he reasonably believed to be in or not opposed to the best interests of the corporation, and, with respect to any criminal action or proceeding, had no reasonable cause to believe his conduct was unlawful.

NRS Section 78.7502(2) provides that a corporation may indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the corporation to procure a judgment in its favor by reason of the fact that he is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against expenses, including amounts paid in settlement and attorneys' fees actually and reasonably incurred by him in connection with the defense or settlement of the action or suit if he: (a) is not liable pursuant to NRS 78.138; or (b) acted in good faith and in a manner which he reasonably believed to be in or not opposed to the best interests of the corporation. Indemnification may not be made for any claim, issue or matter as to which such a person has been adjudged by a court of competent jurisdiction, after exhaustion of all appeals there from, to be liable to the corporation or for amounts paid in settlement to the corporation, unless and only to the extent that the court in which the action or suit was brought or other court of competent jurisdiction determines upon application that in view of all the circumstances of the case, the person is fairly and reasonably entitled to indemnity for such expenses as the court deems proper.

NRS Section 78.747 provides that except as otherwise provided by specific statute, no director or officer of a corporation is individually liable for a debt or liability of the corporation, unless the director or officer acts as the alter ego of the corporation. The court as a matter of law must determine the question of whether a director or officer acts as the alter ego of a corporation.

Our articles of incorporation and bylaws provide that we shall indemnify our directors, officers, employees and agents to the full extent permitted by NRS, including in circumstances in which indemnification is otherwise discretionary under such law.

These indemnification provisions may be sufficiently broad to permit indemnification of our officers, directors and other corporate agents for liabilities (including reimbursement of expenses incurred) arising under the Securities Act of 1933.

Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of our company pursuant to the foregoing provisions, or otherwise, we have been informed that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act of 1933 and is, therefore, unenforceable.

We have the power to purchase and maintain insurance on behalf of any person who is or was one of our directors or officers, or is or was serving at our request as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other business against any liability asserted against the person or incurred by the person in any of these capacities, or arising out of the person's fulfilling one of these capacities, and related expenses, whether or not we would have the power to indemnify the person against the claim under the provisions of the NRS. We do not currently maintain director and officer liability insurance on behalf of our director and officers; however, we intend to so purchase and maintain such insurance when economically feasible.

Transfer Agent and Registrar

The transfer agent and registrar for our common stock is ClearTrust, LLC with its business address at 16540 Point Village Drive, Lutz, Florida 33558.

DESCRIPTION OF DEBT SECURITIES

We may issue debt securities from time to time, in one or more series, as either senior or subordinated debt or as senior or subordinated convertible debt. While the terms we have summarized below will apply generally to any debt securities that we may offer under this prospectus, we will describe the particular terms of any debt securities that we may offer in more detail in the applicable prospectus supplement. The terms of any debt securities offered under a prospectus supplement may differ from the terms described below. Unless the context requires otherwise, whenever we refer to the indenture, we also are referring to any supplemental indentures that specify the terms of a particular series of debt securities.

We will issue the debt securities under an indenture that we will enter into with a trustee named in the indenture. The indenture will be qualified under the Trust Indenture Act of 1939, as amended, or the Trust Indenture Act. We have filed the form of indenture as an exhibit to the registration statement of which this prospectus is a part, and supplemental indentures and forms of debt securities containing the terms of the debt securities being offered will be filed as exhibits to the registration statement of which this prospectus is a part or will be incorporated by reference from reports that we file with the SEC.

The following summary of material provisions of the debt securities and the indenture is subject to, and qualified in its entirety by reference to, all of the provisions of the indenture applicable to a particular series of debt securities. We urge you to read the applicable prospectus supplements and any related free writing prospectuses related to the debt securities that we may offer under this prospectus, as well as the complete indenture that contains the terms of the debt securities.

General

The indenture does not limit the amount of debt securities that we may issue. It provides that we may issue debt securities up to the principal amount that we may authorize and may be in any currency or currency unit that we may designate. Except for the limitations on consolidation, merger and sale of all or substantially all of our assets contained in the indenture, the terms of the indenture do not contain any covenants or other provisions designed to give holders of any debt securities protection against changes in our operations, financial condition or transactions involving us.

We may issue the debt securities issued under the indenture as "discount securities," which means they may be sold at a discount below their stated principal amount. These debt securities, as well as other debt securities that are not issued at a discount, may be issued with "original issue discount," or OID, for U.S. federal income tax purposes because of interest payment and other characteristics or terms of the debt securities. Material U.S. federal income tax considerations applicable to debt securities issued with OID will be described in more detail in any applicable prospectus supplement.

We will describe in the applicable prospectus supplement the terms of the series of debt securities being offered, including:

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the title of the series of debt securities;

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any limit upon the aggregate principal amount that may be issued;

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the maturity date or dates;

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the form of the debt securities of the series;

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the applicability of any guarantees;

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whether or not the debt securities will be secured or unsecured, and the terms of any secured debt;

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whether the debt securities rank as senior debt, senior subordinated debt, subordinated debt or any combination thereof, and the terms of any subordination;

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if the price (expressed as a percentage of the aggregate principal amount thereof) at which such debt securities will be issued is a price other than the principal amount thereof, the portion of the principal amount thereof payable upon declaration of acceleration of the maturity thereof, or if applicable, the portion of the principal amount of such debt securities that is convertible into another security or the method by which any such portion shall be determined;

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the interest rate or rates, which may be fixed or variable, or the method for determining the rate and the date interest will begin to accrue, the dates interest will be payable and the regular record dates for interest payment dates or the method for determining such dates;

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our right, if any, to defer payment of interest and the maximum length of any such deferral period;

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if applicable, the date or dates after which, or the period or periods during which, and the price or prices at which, we may, at our option, redeem the series of debt securities pursuant to any optional or provisional redemption provisions and the terms of those redemption provisions;

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the date or dates, if any, on which, and the price or prices at which we are obligated, pursuant to any mandatory sinking fund or analogous fund provisions or otherwise, to redeem, or at the holder's option to purchase, the series of debt securities and the currency or currency unit in which the debt securities are payable;

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the denominations in which we will issue the series of debt securities, if other than denominations of $1,000 and any integral multiple thereof;

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any and all terms, if applicable, relating to any auction or remarketing of the debt securities of that series and any security for our obligations with respect to such debt securities and any other terms which may be advisable in connection with the marketing of debt securities of that series;

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whether the debt securities of the series shall be issued in whole or in part in the form of a global security or securities; the terms and conditions, if any, upon which such global security or securities may be exchanged in whole or in part for other individual securities; and the depositary for such global security or securities;

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if applicable, the provisions relating to conversion or exchange of any debt securities of the series and the terms and conditions upon which such debt securities will be so convertible or exchangeable, including the conversion or exchange price, as applicable, or how it will be calculated and may be adjusted, any mandatory or optional (at our option or the holders' option) conversion or exchange features, the applicable conversion or exchange period and the manner of settlement for any conversion or exchange;

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if other than the full principal amount thereof, the portion of the principal amount of debt securities of the series which shall be payable upon declaration of acceleration of the maturity thereof;

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additions to or changes in the covenants applicable to the particular debt securities being issued, including, among others, the consolidation, merger or sale covenant;

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additions to or changes in the events of default with respect to the securities and any change in the right of the trustee or the holders to declare the principal, premium, if any, and interest, if any, with respect to such securities to be due and payable;

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additions to or changes in or deletions of the provisions relating to covenant defeasance and legal defeasance;

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additions to or changes in the provisions relating to satisfaction and discharge of the indenture;

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additions to or changes in the provisions relating to the modification of the indenture both with and without the consent of holders of debt securities issued under the indenture;

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the currency of payment of debt securities if other than U.S. dollars and the manner of determining the equivalent amount in U.S. dollars;

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whether interest will be payable in cash or additional debt securities at our or the holders' option and the terms and conditions upon which the election may be made;

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the terms and conditions, if any, upon which we will pay amounts in addition to the stated interest, premium, if any, and principal amounts of the debt securities of the series to any holder that is not a "United States person" for federal tax purposes;

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any restrictions on transfer, sale or assignment of the debt securities of the series; and

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any other specific terms, preferences, rights or limitations of, or restrictions on, the debt securities, any other additions or changes in the provisions of the indenture, and any terms that may be required by us or advisable under applicable laws or regulations.

Conversion or Exchange Rights

We will set forth in the applicable prospectus supplement the terms on which a series of debt securities may be convertible into or exchangeable for our common stock or our other securities. We will include provisions as to settlement upon conversion or exchange and whether conversion or exchange is mandatory, at the option of the holder or at our option. We may include provisions pursuant to which the number of shares of our common stock or our other securities that the holders of the series of debt securities receive would be subject to adjustment.

Consolidation, Merger or Sale

Unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, the indenture will not contain any covenant that restricts our ability to merge or consolidate, or sell, convey, transfer or otherwise dispose of our assets as an entirety or substantially as an entirety. However, any successor to or acquirer of such assets (other than a subsidiary of ours) must assume all of our obligations under the indenture or the debt securities, as appropriate.

Events of Default under the Indenture

Unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, the following are events of default under the indenture with respect to any series of debt securities that we may issue:

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if we fail to pay any installment of interest on any series of debt securities, as and when the same shall become due and payable, and such default continues for a period of 90 days; provided, however, that a valid extension of an interest payment period by us in accordance with the terms of any indenture supplemental thereto shall not constitute a default in the payment of interest for this purpose;

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if we fail to pay the principal of, or premium, if any, on any series of debt securities as and when the same shall become due and payable whether at maturity, upon redemption, by declaration or otherwise, or in any payment required by any sinking or analogous fund established with respect to such series; provided, however, that a valid extension of the maturity of such debt securities in accordance with the terms of any indenture supplemental thereto shall not constitute a default in the payment of principal or premium, if any;

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if we fail to observe or perform any other covenant or agreement contained in the debt securities or the indenture, other than a covenant specifically relating to another series of debt securities, and our failure continues for 90 days after we receive written notice of such failure, requiring the same to be remedied and stating that such is a notice of default thereunder, from the trustee or holders of at least 25% in aggregate principal amount of the outstanding debt securities of the applicable series; and

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if specified events of bankruptcy, insolvency or reorganization occur.

If an event of default with respect to debt securities of any series occurs and is continuing, other than an event of default specified in the last bullet point above, the trustee or the holders of at least 25% in aggregate principal amount of the outstanding debt securities of that series, by notice to us in writing, and to the trustee if notice is given by such holders, may declare the unpaid principal of, premium, if any, and accrued interest, if any, due and payable immediately. If an event of default specified in the last bullet point above occurs with respect to us, the principal amount of and accrued interest, if any, of each issue of debt securities then outstanding shall be due and payable without any notice or other action on the part of the trustee or any holder.

The holders of a majority in principal amount of the outstanding debt securities of an affected series may waive any default or event of default with respect to the series and its consequences, except defaults or events of default regarding payment of principal, premium, if any, or interest, unless we have cured the default or event of default in accordance with the indenture. Any waiver shall cure the default or event of default.

Subject to the terms of the indenture, if an event of default under an indenture shall occur and be continuing, the trustee will be under no obligation to exercise any of its rights or powers under such indenture at the request or direction of any of the holders of the applicable series of debt securities, unless such holders have offered the trustee reasonable indemnity. The holders of a majority in principal amount of the outstanding debt securities of any series will have the right to direct the time, method and place of conducting any proceeding for any remedy available to the trustee, or exercising any trust or power conferred on the trustee, with respect to the debt securities of that series, provided that:

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the direction so given by the holder is not in conflict with any law or the applicable indenture; and

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subject to its duties under the Trust Indenture Act, the trustee need not take any action that might involve it in personal liability or might be unduly prejudicial to the holders not involved in the proceeding.

A holder of the debt securities of any series will have the right to institute a proceeding under the indenture or to appoint a receiver or trustee, or to seek other remedies only if:

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the holder has given written notice to the trustee of a continuing event of default with respect to that series;

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the holders of at least 25% in aggregate principal amount of the outstanding debt securities of that series have made written request;

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such holders have offered to the trustee indemnity satisfactory to it against the costs, expenses and liabilities to be incurred by the trustee in compliance with the request; and

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the trustee does not institute the proceeding, and does not receive from the holders of a majority in aggregate principal amount of the outstanding debt securities of that series other conflicting directions within 90 days after the notice, request and offer.

These limitations do not apply to a suit instituted by a holder of debt securities if we default in the payment of the principal, premium, if any, or interest on, the debt securities.

We will periodically file statements with the trustee regarding our compliance with specified covenants in the indenture.

Modification of Indenture; Waiver

We and the trustee may change an indenture without the consent of any holders with respect to specific matters:

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to cure any ambiguity, defect or inconsistency in the indenture or in the debt securities of any series;

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to comply with the provisions described above under "-Description of Debt Securities-Consolidation, Merger or Sale;"

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to provide for uncertificated debt securities in addition to or in place of certificated debt securities;

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to add to our covenants, restrictions, conditions or provisions such new covenants, restrictions, conditions or provisions for the benefit of the holders of all or any series of debt securities, to make the occurrence, or the occurrence and the continuance, of a default in any such additional covenants, restrictions, conditions or provisions an event of default or to surrender any right or power conferred upon us in the indenture;

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to add to, delete from or revise the conditions, limitations, and restrictions on the authorized amount, terms, or purposes of issue, authentication and delivery of debt securities, as set forth in the indenture;

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to make any change that does not adversely affect the interests of any holder of debt securities of any series in any material respect;

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to provide for the issuance of and establish the form and terms and conditions of the debt securities of any series as provided above under "-Description of Debt Securities-General " to establish the form of any certifications required to be furnished pursuant to the terms of the indenture or any series of debt securities, or to add to the rights of the holders of any series of debt securities;

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to evidence and provide for the acceptance of appointment under any indenture by a successor trustee; or

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to comply with any requirements of the SEC in connection with the qualification of any indenture under the Trust Indenture Act.

In addition, under the indenture, the rights of holders of a series of debt securities may be changed by us and the trustee with the written consent of the holders of at least a majority in aggregate principal amount of the outstanding debt securities of each series that is affected. However, unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, we and the trustee may make the following changes only with the consent of each holder of any outstanding debt securities affected:

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extending the fixed maturity of any debt securities of any series;

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reducing the principal amount, reducing the rate of or extending the time of payment of interest, or reducing any premium payable upon the redemption of any series of any debt securities; or

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reducing the percentage of debt securities, the holders of which are required to consent to any amendment, supplement, modification or waiver.

Discharge

Each indenture provides that we can elect to be discharged from our obligations with respect to one or more series of debt securities, except for specified obligations, including obligations to:

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provide for payment;

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register the transfer or exchange of debt securities of the series;

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replace stolen, lost or mutilated debt securities of the series;

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pay principal of and premium and interest on any debt securities of the series;

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maintain paying agencies;

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hold monies for payment in trust;

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recover excess money held by the trustee;

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compensate and indemnify the trustee; and

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appoint any successor trustee.

In order to exercise our rights to be discharged, we must deposit with the trustee money or government obligations sufficient to pay all the principal of, any premium, if any, and interest on, the debt securities of the series on the dates payments are due.

Form, Exchange and Transfer

We will issue the debt securities of each series only in fully registered form without coupons and, unless we provide otherwise in the applicable prospectus supplement, in denominations of $1,000 and any integral multiple thereof. The indenture provides that we may issue debt securities of a series in temporary or permanent global form and as book-entry securities that will be deposited with, or on behalf of, The Depository Trust Company, or DTC, or another depositary named by us and identified in the applicable prospectus supplement with respect to that series. To the extent the debt securities of a series are issued in global form and as book-entry, a description of terms relating to any book-entry securities will be set forth in the applicable prospectus supplement.

At the option of the holder, subject to the terms of the indenture and the limitations applicable to global securities described in the applicable prospectus supplement, the holder of the debt securities of any series can exchange the debt securities for other debt securities of the same series, in any authorized denomination and of like tenor and aggregate principal amount.

Subject to the terms of the indenture and the limitations applicable to global securities set forth in the applicable prospectus supplement, holders of the debt securities may present the debt securities for exchange or for registration of transfer, duly endorsed or with the form of transfer endorsed thereon duly executed if so required by us or the security registrar, at the office of the security registrar or at the office of any transfer agent designated by us for this purpose. Unless otherwise provided in the debt securities that the holder presents for transfer or exchange, we will impose no service charge for any registration of transfer or exchange, but we may require payment of any taxes or other governmental charges.

We will name in the applicable prospectus supplement the security registrar, and any transfer agent in addition to the security registrar, that we initially designate for any debt securities. We may at any time designate additional transfer agents or rescind the designation of any transfer agent or approve a change in the office through which any transfer agent acts, except that we will be required to maintain a transfer agent in each place of payment for the debt securities of each series.

If we elect to redeem the debt securities of any series, we will not be required to:

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issue, register the transfer of, or exchange any debt securities of that series during a period beginning at the opening of business 15 days before the day of mailing of a notice of redemption of any debt securities that may be selected for redemption and ending at the close of business on the day of the mailing; or

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register the transfer of or exchange any debt securities so selected for redemption, in whole or in part, except the unredeemed portion of any debt securities we are redeeming in part.

Information Concerning the Trustee

The trustee, other than during the occurrence and continuance of an event of default under an indenture, undertakes to perform only those duties as are specifically set forth in the applicable indenture. Upon an event of default under an indenture, the trustee must use the same degree of care as a prudent person would exercise or use in the conduct of his or her own affairs. Subject to this provision, the trustee is under no obligation to exercise any of the powers given it by the indenture at the request of any holder of debt securities unless it is offered reasonable security and indemnity against the costs, expenses and liabilities that it might incur.

Payment and Paying Agents

Unless we otherwise indicate in the applicable prospectus supplement, we will make payment of the interest on any debt securities on any interest payment date to the person in whose name the debt securities, or one or more predecessor securities, are registered at the close of business on the regular record date for the interest.

We will pay principal of and any premium and interest on the debt securities of a particular series at the office of the paying agents designated by us, except that unless we otherwise indicate in the applicable prospectus supplement, we will make interest payments by check that we will mail to the holder or by wire transfer to certain holders. Unless we otherwise indicate in the applicable prospectus supplement, we will designate the corporate trust office of the trustee as our sole paying agent for payments with respect to debt securities of each series. We will name in the applicable prospectus supplement any other paying agents that we initially designate for the debt securities of a particular series. We will maintain a paying agent in each place of payment for the debt securities of a particular series.

All money we pay to a paying agent or the trustee for the payment of the principal of or any premium or interest on any debt securities that remains unclaimed at the end of two years after such principal, premium or interest has become due and payable will be repaid to us, and the holder of the debt security thereafter may look only to us for payment thereof.

Governing Law

The indenture and the debt securities will be governed by and construed in accordance with the internal laws of the State of New York, except to the extent that the Trust Indenture Act is applicable.

DESCRIPTION OF WARRANTS

The following description, together with the additional information we may include in any applicable prospectus supplements and in any related free writing prospectuses, summarizes the material terms and provisions of the warrants that we may offer under this prospectus, which may consist of warrants to purchase common stock, preferred stock or debt securities and may be issued in one or more series. Warrants may be issued independently or together with common stock, preferred stock or debt securities offered by any prospectus supplement, and may be attached to or separate from those securities. While the terms we have summarized below will apply generally to any warrants that we may offer under this prospectus, we will describe the particular terms of any series of warrants that we may offer in more detail in the applicable prospectus supplement and any applicable free writing prospectus. The terms of any warrants offered under a prospectus supplement may differ from the terms described below. However, no prospectus supplement will fundamentally change the terms that are set forth in this prospectus or offer a security that is not registered and described in this prospectus at the time of its effectiveness.

We may issue the warrants under a warrant agreement that we will enter into with a warrant agent to be selected by us. If selected, the warrant agent will act solely as an agent of ours in connection with the warrants and will not act as an agent for the holders or beneficial owners of the warrants. If applicable, we will file as exhibits to the registration statement of which this prospectus is a part, or will incorporate by reference from a Current Report on Form 8-K that we file with the SEC, the form of warrant agreement, including a form of warrant certificate, that describes the terms of the particular series of warrants we are offering before the issuance of the related series of warrants. The following summaries of material provisions of the warrants and the warrant agreements are subject to, and qualified in their entirety by reference to, all the provisions of the warrant agreement and warrant certificate applicable to a particular series of warrants. We urge you to read the applicable prospectus supplement and any applicable free writing prospectus related to the particular series of warrants that we sell under this prospectus, as well as the complete warrant agreements and warrant certificates that contain the terms of the warrants.

General

We will describe in the applicable prospectus supplement the terms relating to a series of warrants, including:

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the offering price and aggregate number of warrants offered;

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the currency for which the warrants may be purchased;

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if applicable, the designation and terms of the securities with which the warrants are issued and the number of warrants issued with each such security or each principal amount of such security;

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if applicable, the date on and after which the warrants and the related securities will be separately transferable;

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in the case of warrants to purchase debt securities, the principal amount of debt securities purchasable upon exercise of one warrant and the price at, and currency in which, this principal amount of debt securities may be purchased upon such exercise;

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in the case of warrants to purchase common stock or preferred stock, the number of shares of common stock or preferred stock, as the case may be, purchasable upon the exercise of one warrant and the price at which these shares may be purchased upon such exercise;

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the effect of any merger, consolidation, sale or other disposition of our business on the warrant agreements and the warrants;

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the terms of any rights to redeem or call the warrants;

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any provisions for changes to or adjustments in the exercise price or number of securities issuable upon exercise of the warrants;

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the dates on which the right to exercise the warrants will commence and expire;

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the manner in which the warrant agreements and warrants may be modified;

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U.S. federal income tax consequences of holding or exercising the warrants;

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the terms of the securities issuable upon exercise of the warrants; and

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any other specific terms, preferences, rights or limitations of or restrictions on the warrants.

Before exercising their warrants, holders of warrants will not have any of the rights of holders of the securities purchasable upon such exercise, including:

	●	in the case of warrants to purchase debt securities, the right to receive payments of principal of, or premium, if any, or interest on, the debt securities purchasable upon exercise or to enforce covenants in the applicable indenture; or
	●	in the case of warrants to purchase common stock or preferred stock, the right to receive dividends, if any, or, payments upon our liquidation, dissolution or winding up or to exercise voting rights, if any.

Exercise of Warrants

Each warrant will entitle the holder to purchase the securities that we specify in the applicable prospectus supplement at the exercise price that we describe in the applicable prospectus supplement. Unless we otherwise specify in the applicable prospectus supplement, holders of the warrants may exercise the warrants at any time up to the specified time on the expiration date that we set forth in the applicable prospectus supplement. After the close of business on the expiration date, unexercised warrants will become void.

Holders of the warrants may exercise the warrants by delivering the warrant certificate representing the warrants to be exercised together with specified information, and paying the required amount to the warrant agent in immediately available funds, as provided in the applicable prospectus supplement. We will set forth on the reverse side of the warrant certificate and in the applicable prospectus supplement the information that the holder of the warrant will be required to deliver to us or the warrant agent as applicable.

Upon receipt of the required payment and the warrant certificate properly completed and duly executed at the corporate trust office of the warrant agent or any other office indicated in the applicable prospectus supplement, we will issue and deliver the securities purchasable upon such exercise. If fewer than all of the warrants represented by the warrant certificate are exercised, then we will issue a new warrant certificate for the remaining amount of warrants. If we so indicate in the applicable prospectus supplement, holders of the warrants may surrender securities as all or part of the exercise price for warrants.

Enforceability of Rights by Holders of Warrants

If selected, each warrant agent will act solely as our agent under the applicable warrant agreement and will not assume any obligation or relationship of agency or trust with any holder of any warrant. A single bank or trust company may act as warrant agent for more than one issue of warrants. A warrant agent will have no duty or responsibility in case of any default by us under the applicable warrant agreement or warrant, including any duty or responsibility to initiate any proceedings at law or otherwise, or to make any demand upon us. Any holder of a warrant may, without the consent of the related warrant agent or the holder of any other warrant, enforce by appropriate legal action its right to exercise, and receive the securities purchasable upon exercise of, its warrants.

DESCRIPTION OF RIGHTS

The following description, together with the additional information we include in any applicable prospectus supplement, summarizes the general features of the rights that we may offer under this prospectus. We may issue rights to our stockholders to purchase shares of our common stock and/or any of the other securities offered hereby. Each series of rights will be issued under a separate rights agreement to be entered into between us and a bank or trust company, as rights agent. When we issue rights, we will provide the specific terms of the rights and the applicable rights agreement in a prospectus supplement. Because the terms of any rights we offer under a prospectus supplement may differ from the terms we describe below, you should rely solely on information in the applicable prospectus supplement if that summary is different from the summary in this prospectus. We will incorporate by reference into the registration statement of which this prospectus is a part, the form of rights agreement that describes the terms of the series of rights we are offering before the issuance of the related series of rights. The applicable prospectus supplement relating to any rights will describe the terms of the offered rights, including, where applicable, the following:

	●	the date for determining the persons entitled to participate in the rights distribution;
	●	the exercise price for the rights;
	●	the aggregate number or amount of underlying securities purchasable upon exercise of the rights;

	●	the number of rights issued to each stockholder and the number of rights outstanding, if any;
	●	the extent to which the rights are transferable;
	●	the date on which the right to exercise the rights will commence and the date on which the right will expire;
	●	the extent to which the rights include an over-subscription privilege with respect to unsubscribed securities;
	●	anti-dilution provisions of the rights, if any; and
	●	any other terms of the rights, including terms, procedures and limitations relating to the distribution, exchange and exercise of the rights.

Holders may exercise rights as described in the applicable prospectus supplement. Upon receipt of payment and the rights certificate properly completed and duly executed at the corporate trust office of the rights agent or any other office indicated in the prospectus supplement, we will, as soon as practicable, forward the securities purchasable upon exercise of the rights. If less than all of the rights issued in any rights offering are exercised, we may offer any unsubscribed securities directly to persons other than stockholders, to or through agents, underwriters or dealers or through a combination of such methods, including pursuant to standby underwriting arrangements, as described in the applicable prospectus supplement.

DESCRIPTION OF UNITS

The following description, together with the additional information we may include in any applicable prospectus supplements and free writing prospectuses, summarizes the material terms and provisions of the units that we may offer under this prospectus.

While the terms we have summarized below will apply generally to any units that we may offer under this prospectus, we will describe the particular terms of any series of units in more detail in the applicable prospectus supplement. The terms of any units offered under a prospectus supplement may differ from the terms described below. However, no prospectus supplement will fundamentally change the terms that are set forth in this prospectus or offer a security that is not registered and described in this prospectus at the time of its effectiveness.

We will file as exhibits to the registration statement of which this prospectus is a part, or will incorporate by reference from a Current Report on Form 8-K that we file with the SEC, the form of unit agreement that describes the terms of the series of units we are offering, and any supplemental agreements, before the issuance of the related series of units. The following summaries of material terms and provisions of the units are subject to, and qualified in their entirety by reference to, all the provisions of the unit agreement and any supplemental agreements applicable to a particular series of units. We urge you to read the applicable prospectus supplements related to the particular series of units that we sell under this prospectus, as well as the complete unit agreement and any supplemental agreements that contain the terms of the units.

General

We may issue units comprised of one or more debt securities, shares of common stock, shares of preferred stock, warrants and rights in any combination. Each unit will be issued so that the holder of the unit is also the holder of each security included in the unit. Thus, the holder of a unit will have the rights and obligations of a holder of each included security. The unit agreement under which a unit is issued may provide that the securities included in the unit may not be held or transferred separately, at any time or at any time before a specified date.

We will describe in the applicable prospectus supplement the terms of the series of units, including:

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the designation and terms of the units and of the securities comprising the units, including whether and under what circumstances those securities may be held or transferred separately;

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any provisions of the governing unit agreement that differ from those described below; and

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any provisions for the issuance, payment, settlement, transfer or exchange of the units or of the securities comprising the units.

The provisions described in this section, as well as those described under "Description of Capital Stock," "Description of Debt Securities," "Description of Warrants" and "Description of Rights" will apply to each unit and to any common stock, preferred stock, debt security, warrant or right included in each unit, respectively.

Unit Agent

The name and address of the unit agent, if any, for any units we offer will be set forth in the applicable prospectus supplement.

Issuance in Series

We may issue units in such amounts and in numerous distinct series as we determine.

Enforceability of Rights by Holders of Units

Each unit agent will act solely as our agent under the applicable unit agreement and will not assume any obligation or relationship of agency or trust with any holder of any unit. A single bank or trust company may act as unit agent for more than one series of units. A unit agent will have no duty or responsibility in case of any default by us under the applicable unit agreement or unit, including any duty or responsibility to initiate any proceedings at law or otherwise, or to make any demand upon us. Any holder of a unit may, without the consent of the related unit agent or the holder of any other unit, enforce by appropriate legal action its rights as holder under any security included in the unit.

We, the unit agents and any of their agents may treat the registered holder of any unit certificate as an absolute owner of the units evidenced by that certificate for any purpose and as the person entitled to exercise the rights attaching to the units so requested, despite any notice to the contrary.

PLAN OF DISTRIBUTION

We may sell the securities covered hereby from time to time pursuant to underwritten public offerings, direct sales to the public, negotiated transactions, block trades or a combination of these methods. A distribution of these securities offered by this prospectus may also be effected through the issuance of derivative securities, including without limitation, warrants. We may sell the securities to or through underwriters or dealers, through agents, or directly to one or more purchasers. We may distribute securities from time to time in one or more transactions:

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at a fixed price or prices, which may be changed;

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at market prices prevailing at the time of sale;

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at prices related to such prevailing market prices; or

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at negotiated prices.

We may also sell equity securities covered by this registration statement in an "at-the-market offering" as defined in Rule 415(a)(4) under the Securities Act. Such offering may be made into an existing trading market for such securities in transactions at other than a fixed price, either:

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on or through the facilities of the Nasdaq Capital Market or any other securities exchange or quotation or trading service on which such securities may be listed, quoted or traded at the time of sale; and/or

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to or through a market maker other than on the Nasdaq Capital Market or such other securities exchanges or quotation or trading services.

Such at-the-market offerings, if any, may be conducted by underwriters acting as principal or agent.

A prospectus supplement or supplements (and any related free writing prospectus that we may authorize to be provided to you) will describe the terms of the offering of the securities, including, to the extent applicable:

●

the name or names of any underwriters, dealers or agents, if any;

●

the purchase price of the securities and the proceeds we will receive from the sale;

●

any over-allotment options under which underwriters may purchase additional securities from us;

●

any agency fees or underwriting discounts and other items constituting agents' or underwriters' compensation;

●

any public offering price;

●

any discounts or concessions allowed or reallowed or paid to dealers; and

●

any securities exchange or market on which the securities may be listed.

Only underwriters named in the prospectus supplement are underwriters of the securities offered by the prospectus supplement.

If underwriters are used in the sale, they will acquire the securities for their own account and may resell the securities from time to time in one or more transactions at a fixed public offering price or at varying prices determined at the time of sale. The obligations of the underwriters to purchase the securities will be subject to the conditions set forth in the applicable underwriting agreement. We may offer the securities to the public through underwriting syndicates represented by managing underwriters or by underwriters without a syndicate. Subject to certain conditions, the underwriters will be obligated to purchase all of the securities offered by the prospectus supplement. Any public offering price and any discounts or concessions allowed or reallowed or paid to dealers may change from time to time. We may use underwriters with whom we have a material relationship. We will describe in the prospectus supplement, naming the underwriter, and the nature of any such relationship.

We may sell securities directly or through agents we designate from time to time. We will name any agent involved in the offering and sale of securities, and we will describe any commissions and other compensation we will pay the agent in the prospectus supplement. Unless the prospectus supplement states otherwise, our agent will act on a best-efforts basis for the period of its appointment.

We may authorize agents or underwriters to solicit offers by certain types of institutional investors to purchase securities from us at the public offering price set forth in the prospectus supplement pursuant to delayed delivery contracts providing for payment and delivery on a specified date in the future. We will describe the conditions to these contracts and the commissions we must pay for solicitation of these contracts in the prospectus supplement.

We may provide agents and underwriters with indemnification against civil liabilities related to the offering, including liabilities under the Securities Act, or contribution with respect to payments that the agents or underwriters may make with respect to these liabilities. Agents and underwriters may engage in transactions with, or perform services for, us in the ordinary course of business.

All securities we may offer, other than common stock, will be new issues of securities with no established trading market. Any agents or underwriters may make a market in these securities, but will not be obligated to do so and may discontinue any market making at any time without notice. We cannot guarantee the liquidity of the trading markets for any securities. There is currently no market for any of the offered securities, other than our common stock which is listed on the Nasdaq Capital Market. We have no current plans for listing of the preferred stock, debt securities, warrants, rights or units on any securities exchange or quotation system; any such listing with respect to any particular preferred stock, debt securities, warrants, rights or units will be described in the applicable prospectus supplement or other offering materials, as the case may be.

Any agents and underwriter may engage in overallotment, stabilizing transactions, short covering transactions and penalty bids in accordance with Rule 103 of Regulation M under the Exchange Act. Overallotment involves sales in excess of the offering size, which creates a short position. Stabilizing transactions permit bids to purchase the underlying security so long as the stabilizing bids do not exceed a specified maximum. Short covering transactions involve purchases of the securities in the open market after the distribution is completed to cover short positions. Penalty bids permit the underwriters to reclaim a selling concession from a dealer when the securities originally sold by the dealer are purchased in a stabilizing or covering transaction to cover short positions. Those activities may cause the price of the securities to be higher than it would otherwise be. If commenced, the underwriters may discontinue any of the activities at any time. These transactions may be effected on any exchange or over-the-counter market or otherwise.

Any underwriters who are qualified market makers on the Nasdaq Capital Market may engage in passive market making transactions in the securities on the Nasdaq Capital Market in accordance with Rule 103 of Regulation M, during the business day prior to the pricing of the offering, before the commencement of offers or sales of the securities. Passive market makers must comply with applicable volume and price limitations and must be identified as passive market makers. In general, a passive market maker must display its bid at a price not in excess of the highest independent bid for such security; if all independent bids are lowered below the passive market maker's bid, however, the passive market maker's bid must then be lowered when certain purchase limits are exceeded. Passive market making may stabilize the market price of the securities at a level above that which might otherwise prevail in the open market and, if commenced, may be discontinued at any time.

LEGAL MATTERS

Unless otherwise indicated in the applicable prospectus supplement, certain legal matters in connection with the offering and the validity of the securities offered by this prospectus, and any supplement thereto, will be passed upon by Sichenzia Ross Ference Carmel LLP, New York, New York. Additional legal matters may be passed upon for us or any underwriters, dealers or agents, by counsel that we will name in the applicable prospectus supplement.

EXPERTS

Our financial statements included herein for the years ended December 31, 2025 and December 31, 2024 have been audited by Rosenberg Rich Baker Berman, P.A., an independent registered public accounting firm, as stated in their report, which are incorporated herein by reference. Such financial statements have been so incorporated in reliance upon the report of such firm given upon their authority as experts in auditing and accounting.

WHERE YOU CAN FIND MORE INFORMATION

This prospectus is part of a registration statement on Form S-3 we filed with the SEC under the Securities Act and does not contain all of the information set forth or incorporated by reference in the registration statement. Whenever a reference is made in this prospectus to any of our contracts, agreements or other documents, the reference may not be complete and you should refer to the exhibits that are a part of the registration statement or the exhibits to the reports or other documents incorporated by reference into this prospectus for a copy of such contract, agreement or other document. Neither we nor any agent, underwriter or dealer has authorized any person to provide you with different information. We are not making an offer of these securities in any jurisdiction where the offer is not permitted. You should not assume that the information in this prospectus is accurate as of any date other than the date on the front page of this prospectus, regardless of the time of delivery of this prospectus or any sale of the securities offered by this prospectus.

We file annual, quarterly and current reports, proxy statements and other information with the SEC. Our SEC filings are available to the public over the internet on the SEC's website at http://www.sec.gov.

Copies of certain information filed by us with the SEC are also available on our website at https://www.callanjmb.com. The information contained in or accessible from our website is not a part of this prospectus, nor is such information incorporated by reference herein, and should not be relied upon in determining whether to make an investment in our securities. We have included our website address in this prospectus solely as an inactive textual reference.

INCORPORATION OF CERTAIN INFORMATION BY REFERENCE

The SEC allows us to "incorporate by reference" the information we file with them into this prospectus. This means that we can disclose important information to you by referring you to another document filed separately with the SEC instead of having to repeat the information in this prospectus. The information incorporated by reference is an important part of this prospectus. The information incorporated by reference into this prospectus is deemed to be part of this prospectus, and any information filed with the SEC after the date of this prospectus will automatically be deemed to update and supersede information contained in this prospectus.

The following documents previously filed with the SEC are incorporated by reference in this prospectus:

	●	our Annual Report on Form 10-K for the fiscal year ended December 31, 2025, filed with the SEC on March 31, 2026;
	●	our Quarterly Report on Form 10-Q for the quarter ended March 31, 2026 filed with the SEC on May 15, 2026;

	●	our Current Reports on Form 8-K filed with the Commission on March 12, 2026, March 31, 2026, and April 10, 2026, and;
	●	the description of the our common stock contained in our Registration Statement on Form 8-A (File No: 001-42506) filed with the Commission on February 4, 2025.

We also incorporate by reference all additional documents that we file with the SEC pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act that are made after the date of this prospectus but prior to the termination of the offerings covered by this prospectus. We are not, however, incorporating, in each case, any documents or information that we are deemed to furnish and not file in accordance with SEC rules (unless we specifically state in such furnished material that such document or information is incorporated into the registration statement of which this prospectus is a part).

Any statement contained in a document incorporated or deemed to be incorporated by reference into this prospectus will be deemed to be modified or superseded for the purposes of this prospectus to the extent that a statement contained herein, or in any other subsequently filed document which also is or is deemed to be incorporated by reference herein, modifies or supersedes that statement. The modifying or superseding statement need not state it has modified or superseded a prior statement or include any other information set forth in the document that it modifies or supersedes. The making of a modifying or superseding statement is not an admission for any purposes that the modified or superseded statement, when made, constituted a misrepresentation, an untrue statement of a material fact or an omission to state a material fact that is required to be stated or that is necessary to make a statement not misleading in light of the circumstances in which it was made. Any statement so modified or superseded will not be deemed, except as so modified or superseded, to constitute a part of this prospectus.

We will furnish without charge to each person, including any beneficial owner, to whom a prospectus is delivered, upon written or oral request, a copy of any or all of the report or documents incorporated by reference, including exhibits to these documents. Any such request may be made by writing or calling us at the following mailing address or phone number:

Callan JMB Inc.

244 Flightline Drive, Spring Branch, Texas 78070-6241

(830) 438-0395

Attn: Wayne Williams

Telephone: (830) 438-0395

CALLAN JMB INC.

$200,000,000

Common Stock

Preferred Stock

Debt Securities

Warrants

Rights

Units

PROSPECTUS

, 2026

The information in this prospectus is not complete and may be changed. We may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any jurisdiction where such offer or sale is not permitted.

SUBJECT TO COMPLETION, DATED MAY 26, 2026

PROSPECTUS SUPPLEMENT

(To Prospectus dated , 2026)

CALLAN JMB INC.

Up to $5,000,000 Common Stock

On May 26, 2026, Callan JMB Inc. entered into an At-The-Market Issuance Sales Agreement (the "ATM Agreement") with Alexander Capital, L.P. as selling agent ("Alexander Capital" or the "Sales Agent"), relating to shares of our common stock, par value $0.001 per share ("Common Stock") offered by this prospectus supplement and the accompanying prospectus. In accordance with the terms of the ATM Agreement, we may offer and sell shares of our Common Stock from time to time through the Sales Agent having an aggregate offering price of up to $5,000,000.

Our Common Stock is listed on the Nasdaq Capital Market ("Nasdaq") under the symbol "CJMB." On May 22, 2026, the last reported sale price of our Common Stock on Nasdaq was $0.78 per share.

As of May 26, 2026, a date within 60 days of the date of this prospectus supplement, the aggregate market value of our outstanding shares of Common Stock held by non-affiliates, or public float, was approximately $3,394,649 based on 5,646,118 outstanding shares of Common Stock, of which approximately 2,552,368 shares are held by non-affiliates, and a per share price of $1.33, which was the highest closing sale price of our Common Stock on the Nasdaq Capital Market within the 60 days prior to and including such date. One-third of our public float, calculated in accordance with General Instruction I.B.6 of Form S-3 as of May 26, 2026, is equal to approximately $1,131,550. During the 12 calendar months prior to and including the date of this prospectus supplement, we have not sold any securities pursuant to General Instruction I.B.6 of Form S-3. In no event will we sell securities registered on this registration statement in a public primary offering with a value exceeding more than one-third of our public float in any 12-month period so long as our public float remains below $75.0 million pursuant to General Instruction I.B.6 of Form S-3.

Sales of our common stock, if any, under this prospectus supplement and the accompanying prospectus may be made in sales deemed to be "at the market offerings" as defined in Rule 415 promulgated under the Securities Act of 1933, as amended (the "Securities Act"). The Sales Agent is not required to sell any specific number or dollar amount of securities, but will act as a sales agent using commercially reasonable efforts consistent with its normal trading and sales practices, on mutually agreed terms between the Sales Agent and us. There is no arrangement for funds to be received in any escrow, trust or similar arrangement. We or the Sales Agent, under certain circumstances and upon notice to the other, may suspend the offering of the common stock under the ATM Agreement. The offering of our common stock pursuant to the ATM Agreement will terminate upon the sale of Common Stock in an aggregate offering amount equal to $5,000,000, or sooner if either we or the Sales Agent terminate the ATM Agreement.

The Sales Agent will receive a commission of 3.0% of the gross proceeds of the sales price per share for any shares sold under the ATM Agreement, as further described under "Plan of Distribution." The net proceeds from any sale under this prospectus supplement and the accompanying prospectus will be used as described under "Use of Proceeds" in this prospectus supplement. In connection with the sale of our common stock on our behalf, the Sales Agent may be deemed to be an "underwriter" within the meaning of the Securities Act, and the compensation of the Sales Agent may be deemed to be underwriting commissions or discounts. We have also agreed to provide indemnification and contribution to the Sales Agent with respect to certain liabilities, including liabilities under the Securities Act.

INVESTING IN OUR COMMON STOCK INVOLVES A HIGH DEGREE OF RISK. YOU SHOULD REVIEW CAREFULLY THE RISKS AND UNCERTAINTIES DESCRIBED UNDER THE HEADING "RISK FACTORS" OF THIS PROSPECTUS SUPPLEMENT, AND UNDER SIMILAR HEADINGS IN THE DOCUMENTS THAT ARE INCORPORATED BY REFERENCE INTO THIS PROSPECTUS SUPPLEMENT AND THE ACCOMPANYING PROSPECTUS.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

Alexander Capital L.P.

The date of this prospectus supplement is May 26, 2026.

TABLE OF CONTENTS

PROSPECTUS SUPPLEMENT

	PAGE
ABOUT THIS PROSPECTUS SUPPLEMENT	S-1
PROSPECTUS SUPPLEMENT SUMMARY	S-2
THE OFFERING	S-4
RISK FACTORS	S-5
CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS	S-7
USE OF PROCEEDS	S-8
DILUTION	S-8
PLAN OF DISTRIBUTION	S-10
LEGAL MATTERS	S-11
EXPERTS	S-11
WHERE YOU CAN FIND MORE INFORMATION	S-11
INCORPORATION OF CERTAIN INFORMATION BY REFERENCE	S-11

ABOUT THIS PROSPECTUS SUPPLEMENT

This prospectus supplement and the accompanying base prospectus are part of a "shelf" registration statement on Form S-3 that we filed with the Securities and Exchange Commission, or the SEC. This prospectus supplement relates to an "at the market" offering of our Common Stock. Before buying any of the shares of Common Stock offered hereby, we urge you to read carefully this prospectus supplement, the accompanying base prospectus, and the documents incorporated by reference into this prospectus supplement and the accompanying base prospectus. You should also read and consider the information in the documents to which we have referred you in the sections of this prospectus supplement entitled "Where You Can Find More Information" and "Incorporation of Certain Information by Reference." These documents contain important information that you carefully should consider when making your investment decision.

This document is in two parts. The first part is this prospectus supplement, which describes the specific terms of this offering and also adds to and updates information contained in the accompanying base prospectus and the documents incorporated by reference into this prospectus supplement and the accompanying base prospectus. The second part, the accompanying base prospectus, provides more general information, some of which may not apply to this offering. Generally, when we refer to "this prospectus," we are referring to both parts of this document combined. The information included or incorporated by reference in this prospectus supplement also adds to, updates, and changes information contained or incorporated by reference in the accompanying base prospectus. If information included or incorporated by reference in this prospectus supplement is inconsistent with the accompanying base prospectus or the information incorporated by reference therein, then this prospectus supplement or the information incorporated by reference in this prospectus supplement will apply and will supersede the information in the accompanying base prospectus and the documents incorporated by reference therein.

You should rely only on the information contained in, or incorporated by reference into, this prospectus supplement and the accompanying base prospectus. We have not, and the Sales Agent has not, authorized anyone to provide you with different or additional information, or to make any representations other than those contained in, or incorporated by reference into, this prospectus supplement and the accompanying base prospectus. We and the Sales Agent take no responsibility for and can provide no assurance as to the reliability of, any other information that others may give you. We are not making offers to sell or solicitations to buy our Common Stock in any jurisdiction in which an offer or solicitation is not authorized or in which the person making that offer or solicitation is not qualified to do so or to anyone to whom it is unlawful to make an offer or solicitation.

You should assume that the information in this prospectus supplement and the accompanying base prospectus is accurate only as of the date on the front of the respective document and that any information that we have incorporated by reference is accurate only as of the date of the document incorporated by reference, regardless of the time of delivery of this prospectus supplement or the accompanying base prospectus or the time of any sale of our Common Stock. Our business, financial condition, results of operations and prospects may have changed since those dates.

This prospectus supplement and the accompanying base prospectus contain summaries of certain provisions contained in some of the documents described herein and therein, but reference is made to the actual documents for complete information. All of the summaries are qualified in their entirety by the actual documents. Copies of some of the documents referred to herein and therein have been filed, will be filed or will be incorporated herein by reference as exhibits to the registration statement of which this prospectus supplement is a part, and you may obtain copies of those documents as described below under the section entitled "Where You Can Find More Information."

We further note that the representations, warranties and covenants made by us in any agreement that is filed as an exhibit to any document that is incorporated by reference herein were made solely for the benefit of the parties to such agreement, including, in some cases, for the purpose of allocating risk among the parties to such agreements, and should not be deemed to be a representation, warranty or covenant to you. Moreover, such representations, warranties or covenants were accurate only as of the date when made. Accordingly, such representations, warranties and covenants should not be relied on as accurately representing the current state of our affairs.

This prospectus supplement, the accompanying base prospectus, and the documents incorporated by reference in this prospectus supplement and the accompanying base prospectus, contain references to trademarks, trade names and service marks. Solely for convenience, trademarks, trade names and service marks referred to in this prospectus supplement, the accompanying base prospectus, and the documents incorporated by reference in this prospectus supplement and the accompanying base prospectus may appear without the ^® or ^TM symbols, but such references are not intended to indicate, in any way, that the applicable licensor will not assert, to the fullest extent under applicable law, its rights to such trademarks, trade names and service marks. We do not intend our use or display of other entities' trademarks, trade names or service marks to imply a relationship with, or endorsement or sponsorship of us by, any other entities.

In this prospectus, unless the context otherwise requires, the terms references to "the Company," "Callan," "we," "us" or "our" refer to Callan JMB Inc., a Nevada corporation, and its subsidiaries.

PROSPECTUS SUPPLEMENT SUMMARY

This summary highlights selected information contained in or incorporated by reference in this prospectus supplement and does not contain all of the information that is important to you in making an investment decision. This summary is qualified in its entirety by the more detailed information included elsewhere in this prospectus supplement, the accompanying base prospectus, and the documents incorporated by reference in this prospectus supplement and the accompanying base prospectus. Before making your investment decision with respect to our securities, you should carefully read this entire prospectus supplement and the accompanying base prospectus, including our consolidated financial statements and related notes, and other information incorporated by reference from our other filings with the SEC.

Company Overview

Callan JMB is a vertically integrated logistics and fulfillment company which provides thermal management logistics solutions to the life sciences industry through a combination of proprietary packaging, information technology and specialized cold chain logistics knowhow. We provide a system that utilizes advanced predictive technology to revolutionize the supply chain by guaranteeing the safety, effectiveness, and potency of every product handled to ensure product integrity, and to provide immediate response in time-sensitive industries while ensuring environmental responsibility. We view our solutions as disruptive to the "older technologies" of dry ice and liquid nitrogen, in that our solutions are comprehensive and combine our competencies in configurations that are customized to our client's requirements. We provide comprehensive, reliable, and economic alternatives to all existing logistics solutions and services utilized for frozen shipping in the life sciences industry (e.g., personalized medicine, cell therapies, stem cells, cell lines, vaccines, diagnostic materials, semen, eggs, embryos, cord blood, organs, bio-pharmaceuticals, infectious substances, and other commodities that require continuous exposure to cryogenic or frozen temperatures). As part of our services, we provide the ability to monitor, record and archive crucial information for each shipment that can be used for scientific and regulatory purposes.

Our Ship2Q® ultraviolet disinfection process (Safe Hygienic Irradiation Performance Process & Qualification) ensures fitness, thermal reliability, and cleanliness of the system components within the manufacturer specifications equal to new "off-the-shelf" shipper systems. Our systematic Ship2Q® process meets all good current manufacturing practices ("cGMP") and good current distribution practices ("cGDP") compliance standards and generates shipper specific track and trace documentation key to any deployment and reuse. Ship2Q® applies a system of control over the recovery and reuse phase of the logistics loop. We are able to recover and reuse the Greenbox shipper, amortizing its total cost across numerous shipments making it cost-neutral in the first few cycles. Additionally, our sophisticated cloud-based logistics operating platform, which is branded as our "Sentry" system, integrates GPS and precise temperature diagnostics throughout a package's journey, maintaining the efficacy, safety, and quality of temperature-sensitive goods throughout transit-with zero bench time required. The Sentry system supports the management of the entire shipment and logistics process through a single interface, including initial order input, document preparation, customs clearance, courier management, shipment tracking, issue resolution, and delivery. In addition, it provides unique and incisive information dashboards and validation documentation for every shipment. The Sentry platform records and retains a fully documented "chain-of-custody" and, at the client's option, "chain-of-condition" for every shipment, helping ensure that quality, safety, efficacy, and stability of shipped commodities are maintained throughout the process. This recorded and archived information allows our clients to meet exacting requirements necessary for scientific work and for proof of regulatory compliance during the logistics phase.

With extensive experience in quality assurance and quality control, we deliver reliability by anticipating, responding, and overcoming the most complex situations with precision and compassion, providing peace of mind and a comprehensive solution for our customers. This empowers the healthcare and emergency response industries with solutions to ensure temperature-sensitive goods remain within specified parameters throughout transit through tracking mechanisms and predictive technology to ensure its integrity for patients, providers, and their communities.

Corporate Information

We were originally formed as Coldchain Technology Services, LLC, a Texas limited liability company. We reorganized as a holding company to Callan JMB Inc., a Nevada corporation, on February 14 2024. We are headquartered at 244 Flightline Dr., Spring Branch, TX 78070. The Company's website is www.coldchain-tech.com. The information contained in or accessible from our website is not a part of this prospectus, nor is such information incorporated by reference herein, and should not be relied upon in determining whether to make an investment in our securities. We have included our website address in this prospectus solely as an inactive textual reference.

Implications of Being an Emerging Growth Company and a Smaller Reporting Company

As a company with less than $1.235 billion in revenue during our last fiscal year, we qualify as an "emerging growth company" as defined in the Jumpstart Our Business Startups Act (the "JOBS Act") enacted in April 2012. An "emerging growth company" may take advantage of exemptions from some of the reporting requirements that are otherwise applicable to public companies. These exceptions include:

●

being permitted to present only two years of audited financial statements and only two years of related Management's Discussion and Analysis of Financial Condition and Results of Operations in this prospectus;

●

not being required to comply with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act of 2002, as amended (the "Sarbanes-Oxley Act");

●

reduced disclosure obligations regarding executive compensation in our periodic reports, proxy statements and registration statements; and

●

exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and stockholder approval of any golden parachute payments not previously approved.

We may take advantage of these provisions until the last day of our fiscal year following the fifth anniversary of our first sale of common equity securities pursuant to an effective registration statement under the Securities Act. However, if certain events occur prior to the end of such five-year period, including if we become a "large accelerated filer," our annual gross revenue exceeds $1.235 billion or we issue more than $1.0 billion of non-convertible debt in any three-year period, we will cease to be an emerging growth company prior to the end of such five-year period.

In addition, the JOBS Act provides that an emerging growth company can take advantage of an extended transition period for complying with new or revised accounting standards. We have elected to avail ourselves of this exemption.

Finally, we are a "smaller reporting company" (and may continue to qualify as such even after we no longer qualify as an emerging growth company) and accordingly may provide less public disclosure than larger public companies. As a result, the information that we provide to our stockholders may be different than you might receive from other public reporting companies in which you hold equity interests.

THE OFFERING

Common Stock offered by us pursuant to this prospectus supplement		Shares of our Common Stock having an aggregate offering price of up to $5,000,000.
Common Stock to be outstanding immediately after this offering		Up to 12,037,625 shares (as more fully described in the notes following this table), assuming sales of 6,410,257 shares of Common Stock in this offering at an offering price of $0.78 per share, which was the last reported sale price of our Common Stock on the Nasdaq Capital Market on May 22, 2026. The actual number of shares of Common Stock issued will vary depending on the sales price under this offering.
Manner of Offering		Sales of our Common Stock, if any, under this prospectus supplement and the accompanying prospectus may be made from time to time by any method permitted by law deemed to be an "at-the-market" offering as defined in Rule 415 of the Securities Act. The Sales Agent is not required to sell any certain number of shares or dollar amount of our Common Stock, but will act as our Sales Agent and use commercially reasonable efforts to sell on our behalf all of the shares of Common Stock requested to be sold by us, consistent with its normal trading and sales practices, subject to the terms of the ATM Agreement. See "Plan of Distribution" beginning on page S-10 of this prospectus supplement.
Use of proceeds		We intend to use the net proceeds of this offering for working capital and general corporate purposes. See "Use of Proceeds."
Risk factors		Investing in our Common Stock involves a high degree of risk and purchasers of our Common Stock may lose part or all of their investment. You should read this prospectus supplement and the accompanying base prospectus, and the documents incorporated by reference herein and therein carefully, including the sections entitled "Risk Factors" and our consolidated financial statements and related notes, before investing in our Common Stock.
Nasdaq Capital Market Symbol		"CJMB"

The number of shares of common stock to be outstanding immediately after this offering is based on 5,646,118 shares of common stock outstanding as of May 22, 2026, and excludes, as of that date, the following:

	●	72,179 shares of common stock issuable upon exercise of outstanding warrants with a weighted average exercise price of $5.00;
	●	1,287,500 shares of common stock issuable upon exercise of outstanding options with a weighted average exercise price of $3.83, of which approximately 638,017 are currently exercisable with a weighted average exercise price of $2.30; and
	●	531,250 shares of common stock underlying outstanding 531,250 restricted stock units.

Except as otherwise noted, all information in this prospectus supplement assumes no exercise of the warrants and options described above and excludes shares underlying outstanding restricted stock units.

RISK FACTORS

Investing in our common stock involves a high degree of risk and uncertainties. Before you make a decision to invest in our common stock, you should carefully consider the risks and uncertainties described below, in the section titled "Risk Factors" in our most recent Annual Report on Form 10-K, and in other documents that we subsequently filed or will file with the SEC that update, supersede or supplement such information, which are incorporated by reference into this prospectus supplement and the accompanying base prospectus. If any of these risks actually occur, our business, financial condition and results of operations could be materially and adversely affected and we may not be able to achieve our goals, the value of our common stock could decline and you could lose some or all of your investment. The risks described in these documents are not the only ones we face. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also impair our business operations. Past financial performance may not be a reliable indicator of future performance, and historical trends should not be used to anticipate results or trends in future periods. If any of these risks actually occurs, our business, financial condition, results of operations or cash flow could be materially adversely affected. This could cause the trading price of our common stock to decline, resulting in a loss of all or part of your investment. Please also carefully read the section titled "Cautionary Note Regarding Forward-Looking Statements."

Risks Related to this Offering

Future sales or issuances of our Common Stock may dilute the ownership interest of existing stockholders and depress the trading price of our Common Stock.

We cannot predict the effect, if any, that future sales of our Common Stock, including sales pursuant to the ATM Agreement or the availability of our Common Stock for future sale, will have on the market price of shares of our Common Stock. Future sales or issuances of our Common Stock may dilute the ownership interests of our existing stockholders, including purchasers of Common Stock in this offering. In addition, future sales or issuances of substantial amounts of our Common Stock may be at prices below the offering price of the shares offered by this prospectus supplement and may adversely impact the market price of our Common Stock and the terms upon which we may obtain additional equity financing in the future. The perception that such sales or issuances may occur could also negatively impact the market price of our Common Stock.

The Common Stock offered hereby will be sold in "at-the-market" offerings, and investors who buy shares at different times will likely pay different prices.

Investors who purchase Common Stock in this offering at different times will likely pay different prices. As a result, investors may experience different outcomes in their investment results. We will have discretion, subject to market demand, to vary the timing, prices and numbers of shares sold, and there is no minimum or maximum sales price. Investors may experience a decline in the value of their shares as a result of share sales made at prices lower than the prices they paid.

The actual number of shares of Common Stock we will issue under the ATM Agreement, at any one time or in total, is uncertain.

Subject to certain limitations in the ATM Agreement and compliance with applicable law, we have the discretion to deliver a sales notice to the Sales Agent at any time throughout the term of the ATM Agreement. The number of shares that are sold by the Sales Agent after delivering a sales notice will fluctuate based on the market price of our Common Stock during the sales period and limits we set with the Sales Agent. Because the price per share of each share sold will fluctuate based on the market price of our Common Stock during the sales period, it is not possible at this stage to predict the number of shares that will be ultimately issued.

You will experience immediate and substantial dilution in the net tangible book value per share of the Common Stock you purchase.

Since the price per share of our Common Stock being offered is substantially higher than the net tangible book value per share of our Common Stock, you will suffer substantial dilution in the net tangible book value of the Common Stock you purchase in this offering. See the section titled "Dilution" in this prospectus supplement for a more detailed discussion of the dilution you will incur if you purchase Common Stock in this offering.

Furthermore, to the extent we need to raise additional capital in the future and we issue additional shares of Common Stock or securities convertible or exchangeable for our Common Stock, our then-existing stockholders may experience dilution and the new securities may have rights senior to those of our Common Stock offered in this offering.

The price of our Common Stock may fluctuate significantly.

The market price of our Common Stock has fluctuated, and may continue to fluctuate significantly in response to many factors, some of which may be beyond our control, including:

	●	actual or anticipated variations in our operating results;
	●	changes in our cash flows from operations or earnings;
	●	additions or departures of key management personnel;
	●	actions by significant stockholders;
	●	market rumors;
	●	comments by securities analysts or other third parties, including blogs, articles, message boards and social and other media;
	●	speculation in the press or investment community;
	●	the passage of legislation or other regulatory developments that adversely affect us or our industry;
	●	the realization of any of the other risk factors included in, or incorporated by reference to, this prospectus supplement or the accompanying prospectus;
	●	general market and economic conditions; and
	●	the effect of a potential "short squeeze" due to a sudden increase in demand for our Common Stock.

In addition, many of the factors listed above are beyond our control. These factors may cause the market price of our Common Stock to decline, regardless of our financial condition, results of operations, business or prospects. It is impossible to ensure that the market price of our Common Stock will not fall in the future.

Management has broad discretion over the use of the proceeds from this offering. We may use the proceeds of this offering in ways that do not improve our operating results or the market value of our Common Stock.

We will have broad discretion in determining the specific uses of the remaining net proceeds from the sale of the Common Stock pursuant to this offering. Our allocations may change in response to a variety of unanticipated events, such as differences between our expected and actual revenues from operations, unexpected expenses or expense overruns or unanticipated opportunities requiring cash expenditures. We will also have significant flexibility as to the timing and use of the net proceeds. As a result, investors will not have the opportunity to evaluate the economic, financial or other information on which we base our decisions on how to use the net proceeds. You will rely on the judgment of our management with only limited information about their specific intentions regarding the use of proceeds. We may spend most of the net proceeds of this offering in ways which you may not agree with. If we fail to apply these funds effectively, our business, results of operations and financial condition may be materially and adversely affected.

We have a history of losses, we expect to continue to incur losses and we may not achieve or sustain profitability in the future.

We have incurred significant losses in each fiscal year since our inception. We experienced a consolidated net loss for the years ended December 31, 2025 and December 31, 2024 of $(7,966,366) and $(2,293,648), respectively. You should not consider our historical revenue levels or operating expenses prior to recent periods as indicative of our future performance. Key elements of our growth strategy include acquiring new customers and continuing to innovate and expand our product offerings. As a result, our operating expenses may increase in the future due to expected increased sales and marketing expenses, operating costs, research and development costs and general and administrative costs and, therefore, our operating losses may continue or even potentially increase for the foreseeable future. In addition, as a public company we incur significant legal, accounting and other expenses, including, but not limited to additional costs in resolving our existing legal matters. Our efforts to grow our business may be costlier than we expect and we may not be able to increase our revenue enough to offset our higher operating expenses. We may incur significant losses in the future for many reasons, including the other risks described in this prospectus supplement and unforeseen expenses, difficulties, complications and delays and other unknown events. We cannot assure you that we will reach profitability in the future or at any specific time in the future or that, if and when we do become profitable, we will sustain profitability. If we are ultimately unable to generate sufficient revenue to meet our financial targets, become profitable and have sustainable positive cash flows, investors could lose their investment.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus supplement, the accompanying base prospectus, and the documents incorporated by reference in this prospectus supplement and the accompanying base prospectus, contain forward-looking statements within the meaning of federal securities laws, that are based on our management's beliefs and assumptions and on information currently available to us. All statements other than statements of historical facts are forward-looking statements.

It is important for an investor to understand that these statements involve risks and uncertainties, some of which are beyond our control. These statements relate to the discussion of our business strategies and our expectations concerning future operations, margins, profitability, liquidity, and capital resources and to analyses and other information that are based on forecasts of future results and estimates of amounts not yet determinable. We sometimes use words such as "anticipate," "believe," "continue," "could," "estimate," "expect," "intend," "may," "plan," "potential," "predict," "project," "seek," "should," "think," "will," "would," or the negative of these words or other similar or comparable terms and phrases, including references to assumptions, in the aforementioned documents to identify forward-looking statements, although not all forward-looking statements contain these words. These forward-looking statements are made based on expectations and beliefs concerning future events affecting us and are subject to uncertainties, risks and factors relating to our operations and business environment, all of which are difficult to predict and many of which are beyond our control, that could cause our actual results to differ materially from those matters expressed or implied by these forward-looking statements.

Such risks, uncertainties and other factors also include those listed in the section titled "Risk Factors" and elsewhere in this prospectus supplement, our most recent Annual Report on Form 10-K and our other filings with the SEC. When considering these forward-looking statements, you should keep in mind the cautionary statements in this prospectus supplement. New risks and uncertainties arise from time to time, and we cannot predict those events or how they may affect us. Given these uncertainties, you should not place undue reliance on these forward-looking statements.

The forward-looking statements made in or incorporated by reference in this prospectus supplement relate only to events or information as of the date on which the statements are made. We do not undertake any obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by applicable securities laws.

USE OF PROCEEDS

We may issue and sell shares of our Common Stock having aggregate sales proceeds of up to $5,000,000 from time to time in this offering. We estimate that the net proceeds to us from this offering will be approximately $4,700,000 after deducting the Sales Agent's commissions. There can be no assurance that we will sell any shares of Common Stock or fully utilize the ATM Agreement as a source of financing.

We currently expect to use the net proceeds from this offering, after deducting the Sales Agent's commissions and our offering expenses, for working capital and general corporate purposes, which may include operating expenses and capital expenditures. Pending these uses, we may invest our net proceeds from this offering primarily in our non-interest-bearing depository accounts, U.S. Treasury money market funds or invest them temporarily in short-term or marketable securities until we use them for their stated purpose.

The timing and amount of our actual expenditures will be based on many factors, including cash flows from operations and the anticipated growth of our business. As of the date of this prospectus supplement, we cannot specify with certainty all of the particular uses for the net proceeds to us from this offering. As a result, our management will have broad discretion regarding the timing and application of the net proceeds from this offering.

DESCRIPTION OF THE SECURITIES WE ARE OFFERING

The following is a brief summary of certain terms and conditions of the securities being offered in this offering and does not purport to be a complete description of the rights and obligation of the parties thereunder.

Common Stock

The material terms and provisions of our Common Stock and each other class of our securities that qualifies or limits our Common Stock are described in the section entitled "Description of Securities that May Be Offered" beginning on page 6 of the accompanying prospectus and are incorporated herein by reference.

Our authorized capital stock consists of 190,000,000 shares of Common Stock, par value $0.001 per share, and 10,000,000 shares of Preferred Stock, par value $0.001 per share.

DILUTION

If you invest in our Common Stock, you will experience immediate and substantial dilution to the extent of the difference between the public offering price of our Common Stock in this offering and the adjusted net tangible book value per share of our Common Stock immediately after the offering.

Our net tangible book value per share is determined by subtracting our total liabilities from our total tangible assets, which is total assets less intangible assets, and dividing this amount by the number of shares of Common Stock outstanding. The historical net tangible book value of our Common Stock as of March 31, 2026 was approximately $1,599,533, or $0.28 per share, based on 5,646,118 shares of Common Stock outstanding at March 31, 2026.

After giving effect to our sale in this offering of shares of our Common Stock in the aggregate amount of $5,000,000 at an assumed offering price of $0.78 per share (the last reported sale price of our Common Stock on the Nasdaq Capital Market on May 22, 2026) and after deducting the Sales Agent commissions and our estimated offering expenses payable by us, our as adjusted net tangible book value as of March 31, 2026 would have been approximately $11,975,332, or $0.54 per share of Common Stock. This represents an immediate increase in net tangible book value of $10,375,699 per share to existing stockholders and immediate dilution in net tangible book value of $0.25 per share to new investors purchasing our Common Stock in this offering at the assumed public offering price. The following table illustrates this dilution on a per share basis:

Assumed offering price per share						$	0.78
Historical net tangible book value per share as of March 31, 2026		$	0.28
Increase in net tangible book value per share attributable to this offering		$	0.26
As adjusted net tangible book value per share after this offering						$	0.54
Dilution per share to new investors						$	0.25

The table above assumes for illustrative purposes that an aggregate of 6,314,726 shares of our Common Stock are sold at a price of $0.78 per share, for aggregate gross proceeds of approximately $5,000,000. The shares sold in this offering, if any, will be sold from time to time at various prices. An increase of $1.00 per share in the price at which the shares are sold from the assumed public offering price of $0.78 per share shown in the table above, assuming all of our Common Stock in the aggregate amount of approximately $5,000,000 is sold at that price, would increase the dilution in net tangible book value per share to new investors in this offering to $0.54 per share, after deducting commissions and estimated offering expenses payable by us. A decrease of $0.50 per share in the price at which the shares are sold from the assumed public offering price of $0.78 per share shown in the table above, assuming all of our Common Stock in the aggregate amount of approximately $5,000,000 is sold at that price, would decrease the dilution in net tangible book value per share to new investors in this offering to $0.25 per share, after deducting commissions and estimated offering expenses payable by us. This information is supplied for illustrative purposes only.

The number of shares of Common Stock to be outstanding after this offering is based on 5,646,118 shares of our Common Stock outstanding as of March 31, 2026, which excludes the following as of such date:

	●	72,179 shares of common stock issuable upon exercise of outstanding warrants with a weighted average exercise price of $5.00;
	●	1,287,500 shares of common stock issuable upon exercise of outstanding options with a weighted average exercise price of $3.83, of which approximately 812,500 are currently exercisable with a weighted average exercise price of $2.30; and
	●	531,250 shares of common stock underlying outstanding 531,250 restricted stock units.

The above illustration of dilution per share to investors participating in this offering assumes no exercise of outstanding options to purchase our Common Stock or outstanding warrants to purchase shares of our Common Stock , and excludes shares underlying outstanding restricted stock units. To the extent that any of these outstanding options or warrants are exercised, restricted stock units vests, or we issue additional shares under our equity incentive plans, there will be further dilution to new investors. In addition, we may choose to raise additional capital due to market conditions or strategic considerations even if we believe we have sufficient funds for our current or future operating plans. To the extent that additional capital is raised through the sale of equity or convertible debt securities, the issuance of these securities could result in further dilution to our stockholders.

PLAN OF DISTRIBUTION

We have entered into the ATM Agreement with Alexander Capital, under which we may from time to time issue and sell to or through Alexander Capital, acting as Sales Agent, shares of our Common Stock having an aggregate offering price of up to $5,000,000. Sales of Common Stock, if any, will be made by any method permitted by law deemed to be an "at-the-market offering" as defined in Rule 415 promulgated under the Securities Act, or, if expressly authorized by us, in privately negotiated transactions.

As Sales Agent, Alexander Capital will offer our Common Stock at prevailing market prices subject to the terms and conditions of the ATM Agreement as agreed upon by us and Alexander Capital. Under the ATM Agreement, pursuant to transaction notices we may issue to Alexander Capital from time to time, we will designate a number of shares which we desire to sell, the time period during which sales are requested to be made, and any minimum price below which sales may not be made. Subject to the terms and conditions of the ATM Agreement, Alexander Capital will use its commercially reasonable efforts, consistent with its sales and trading practices, to sell on our behalf all of the shares of Common Stock requested to be sold by us. We or Alexander Capital may suspend the offering of the Common Stock being made through Alexander Capital under the ATM Agreement upon proper notice to the other party. Alexander Capital will not engage in any transactions that stabilize the price of our Common Stock.

Unless otherwise specified in the applicable transaction notice, settlement for sales of our Common Stock will occur on the first trading day following the time at which an acquiror of Common Stock entered into a contract, binding upon such acquiror, to acquire such Common Stock, in return for payment of the net proceeds to us. Settlement for all shares of our Common Stock shall be effected by delivery of the shares of our Common Stock to Alexander Capital's account at The Depository Trust Company against payments by Alexander Capital of the net proceeds from the sale of such shares of our Common Stock in same day funds delivered to an account designated by us.

There is no arrangement for funds to be received in an escrow, trust or similar arrangement. We will pay Alexander Capital in cash, upon each sale of our shares of Common Stock pursuant to the ATM Agreement, a commission equal to 3.0% of the gross proceeds from each sale of shares of our Common Stock. Because there is no minimum offering amount required as a condition to this offering, the actual total public offering amount, commissions and proceeds to us, if any, are not determinable at this time. Pursuant to the terms of the ATM Agreement, we agreed to reimburse Alexander Capital for the fees and disbursements of its counsel (i) in amount not to exceed $50,000 in connection with the establishment of the at-the-market offering, and (ii) thereafter, an amount not to exceed $3,000 on a quarterly basis. We estimate that the total expense in connection with establishing this "at-the-market offering," excluding compensation payable to Alexander Capital, will be approximately $150,000.

We will report at least quarterly the number of shares of Common Stock sold through Alexander Capital under the ATM Agreement, the net proceeds to us and the compensation paid by us to Alexander Capital in connection with the sales of Common Stock.

In connection with the sales of Common Stock on our behalf, Alexander Capital will be deemed to be an "underwriter" within the meaning of the Securities Act, and the compensation paid to Alexander Capital will be deemed to be underwriting commissions or discounts. We have agreed in the ATM Agreement to provide indemnification and contribution to Alexander Capital against certain liabilities, including liabilities under the Securities Act and the Exchange Act.

The offering of our shares of Common Stock pursuant to the ATM Agreement will terminate upon the earlier of the (i) issuance and sale of all of our shares of Common Stock provided for in this prospectus supplement, or (ii) termination of the ATM Agreement as permitted therein.

Alexander Capital and its affiliates may in the future provide various investment banking and other financial services for us and our affiliates, for which services they may in the future receive customary fees. To the extent required by Regulation M, Alexander Capital will not engage in any market making activities involving our shares of Common Stock while the offering is ongoing under this prospectus supplement. This summary of the material provisions of the ATM Agreement does not purport to be a complete statement of its terms and conditions.

LEGAL MATTERS

The validity of the shares of common stock offered by this prospectus supplement will be passed upon for us by Sichenzia Ross Ference Carmel LLP, New York, New York. Sullivan & Worcester LLP, New York, New York, is serving as counsel for the Sales Agent in connection with this offering.

EXPERTS

Our financial statements included herein for the years ended December 31, 2025 and December 31, 2024 have been audited by Rosenberg Rich Baker Berman, P.A., an independent registered public accounting firm, as stated in their report, which are incorporated herein by reference. Such financial statements have been so incorporated in reliance upon the report of such firm given upon their authority as experts in auditing and accounting.

WHERE YOU CAN FIND MORE INFORMATION

We have filed with the SEC a "shelf" registration statement on Form S-3, including relevant exhibits and schedules, under the Securities Act with respect to the common stock to be sold in this offering. This prospectus supplement and the accompanying base prospectus, which constitute a part of the registration statement, does not contain all of the information contained in the registration statement. You should read the registration statement on Form S-3 and its exhibits and schedules for further information with respect to us and the common stock.

We are subject to the reporting requirements of the Exchange Act and file annual, quarterly and current reports, and other information with the SEC. These reports, proxy statements and other information are available at the SEC's website at http://www.sec.gov.

Copies of certain information filed by us with the SEC are also available on our website at https://www.callanjmb.com. The information contained in or accessible from our website is not a part of this prospectus, nor is such information incorporated by reference herein, and should not be relied upon in determining whether to make an investment in our securities. We have included our website address in this prospectus solely as an inactive textual reference.

INCORPORATION OF CERTAIN INFORMATION BY REFERENCE

The SEC allows us to "incorporate by reference" the information we file with them into this prospectus supplement. This means that we can disclose important information to you by referring you to another document filed separately with the SEC instead of having to repeat the information in this prospectus supplement. The information incorporated by reference is an important part of this prospectus. The information incorporated by reference into this prospectus supplement is deemed to be part of this prospectus, and any information filed with the SEC after the date of this prospectus supplement will automatically be deemed to update and supersede information contained in this prospectus supplement and the accompanying base prospectus.

The following documents previously filed with the SEC are incorporated by reference in this prospectus:

	●	our Annual Report on Form 10-K for the fiscal year ended December 31, 2025, filed with the SEC on March 31, 2026;
	●	our Quarterly Report on Form 10-Q for the quarter ended March 31, 2026 filed with the SEC on May 15, 2026;

	●	the our Current Reports on Form 8-K filed with the Commission on March 12, 2026, March 31, 2026, and April 10, 2026, and;
	●	the description of the our common stock contained in our Registration Statement on Form 8-A (File No: 001-42506) filed with the Commission on February 4, 2025.

We also incorporate by reference all additional documents that we file with the SEC pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act that are made after the date of this prospectus supplement but prior to the termination of the offering of the common stock covered by this prospectus supplement. We are not, however, incorporating, in each case, any documents or information that we are deemed to furnish and not file in accordance with SEC rules (unless we specifically state in such furnished material that such document or information is incorporated into the registration statement of which this prospectus supplement is a part).

Any statement contained in a document incorporated or deemed to be incorporated by reference into this prospectus supplement will be deemed to be modified or superseded for the purposes of this prospectus supplement to the extent that a statement contained herein, or in any other subsequently filed document which also is or is deemed to be incorporated by reference herein, modifies or supersedes that statement. The modifying or superseding statement need not state it has modified or superseded a prior statement or include any other information set forth in the document that it modifies or supersedes. The making of a modifying or superseding statement is not an admission for any purposes that the modified or superseded statement, when made, constituted a misrepresentation, an untrue statement of a material fact or an omission to state a material fact that is required to be stated or that is necessary to make a statement not misleading in light of the circumstances in which it was made. Any statement so modified or superseded will not be deemed, except as so modified or superseded, to constitute a part of this prospectus supplement.

We will furnish without charge to each person, including any beneficial owner, to whom a prospectus is delivered, upon written or oral request, a copy of any or all of the report or documents incorporated by reference, including exhibits to these documents. Any such request may be made by writing or calling us at the following mailing address or phone number:

Callan JMB Inc.

244 Flightline Drive, Spring Branch, Texas 78070-6241

(830) 438-0395

Attn: Wayne Williams

Telephone: (830) 438-0395

Up to $5,000,000

CALLAN JMB INC.

Common Stock

PROSPECTUS SUPPLEMENT

Alexander Capital L.P.

, 2026

PART II

INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution

The following table sets forth an estimate of the fees and expenses, other than the underwriting discounts and commissions, payable by us in connection with the issuance and distribution of the securities being registered. All the amounts shown, except the SEC registration fee, are estimates.

SEC registration fee		$	27,620.00
FINRA filing fee			*
Accounting fees and expenses			*
Legal fees and expenses			*
Transfer agent and registrar fees and expenses			*
Trustee fees and expenses			*
Printing and miscellaneous expenses			*
Total		$	*

*	These fees are calculated based on the securities offered and the number of issuances and accordingly cannot be estimated at this time.

Item 15. Indemnification of Officers and Directors

Section 78.7502(1) of the Nevada Revised Statutes, or NRS, provides that a corporation may indemnify any person who was or is a party, or is threatened to be made a party, to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (except an action by or in the right of the corporation) by reason of the fact that the person is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise or as a manager of a limited liability company, against expenses, including attorneys' fees, judgments, fines and amounts paid in settlement actually and reasonably incurred by that person in connection with such action, suit or proceeding, if that person acted in good faith and in a manner which that person reasonably believed to be in, or not opposed to, the best interests of the corporation, and, with respect to any criminal action or proceeding, had no reasonable cause to believe the conduct was unlawful. The termination of any action, suit or proceeding by judgment, order, settlement, conviction or upon a plea of nolo contendere or its equivalent, does not, of itself, create a presumption that the person did not act in good faith and in a manner he or she reasonably believed to be in, or not opposed to, the best interests of the corporation, or that, with respect to any criminal action or proceeding, he or she had reasonable cause to believe the conduct was unlawful.

Section 78.7502(2) of the NRS provides that a corporation may indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit brought by or on behalf of the corporation to procure a judgment in its favor by reason of the fact that the person acted in any of the capacities set forth in the immediately preceding paragraph above, against expenses, including amounts paid in settlement and attorneys' fees, actually and reasonably incurred by that person in connection with the defense or settlement of such action or suit, if the person acted in accordance with the standard set forth in the immediately preceding paragraph above, except that no indemnification may be made in respect of any claim, issue or matter as to which such person shall have been adjudged by a court of competent jurisdiction after exhaustion of all appeals taken therefrom to be liable to the corporation or for amounts paid in settlement to the corporation unless and only to the extent that the court in which such action or suit was brought or other court of competent jurisdiction determines that, in view of all the circumstances of the case, such person is fairly and reasonably entitled to indemnity for such expenses as the court deems proper.

Under Section 78.7502(3) of the NRS, any discretionary indemnification pursuant to Section 78.7502, unless ordered by a court or advanced pursuant to Section 78.751(2) of the NRS (discussed below), may be made by the corporation only as authorized in each specific case upon a determination that the indemnification of a director, officer, employee or agent of a corporation is proper under the circumstances. The determination must be made by (i) the stockholders of the corporation, (ii) the board of directors, by majority vote of a quorum consisting of directors who were not parties to the action, suit or proceeding, or (iii) independent legal counsel, in a written opinion, if (x) a majority vote of a quorum consisting of directors who were not parties to the action, suit or proceeding so orders or (y) a quorum consisting of directors who were not parties to the action, suit or proceeding cannot be obtained.

Section 78.751(1) of the NRS requires a corporation to indemnify any person who is a director, officer, employee or agent to the extent that the person is successful on the merits or otherwise in defense of (i) any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative, including, without limitation, an action by or in the right of the corporation, by reason of the fact that the person is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise or (ii) any claim, issue or matter therein, against expenses actually and reasonably incurred by the person in connection with defending the action, including, without limitation, attorneys' fees.

Section 78.751(2) of the NRS provides that unless otherwise restricted by the articles of incorporation, the bylaws or an agreement made by the corporation, a corporation may pay the expenses of officers and directors incurred in defending a civil or criminal action, suit or proceeding as they are incurred and in advance of the final disposition of the action, suit or proceeding, upon receipt of an undertaking by or on behalf of the director or officer to repay the amount if it is ultimately determined by a court of competent jurisdiction that the director or officer is not entitled to be indemnified by the corporation. The articles of incorporation, the bylaws or an agreement made by the corporation may require the corporation to pay such expenses upon receipt of such an undertaking. The foregoing does not affect any rights to advancement of expenses to which corporate personnel other than directors or officers may be entitled under any contract or otherwise by law. Section 78.751(3) of the NRS further provides that the indemnification provided for under Sections 78.751 and 78.7502 of the NRS and the advancement of expenses authorized in or ordered by a court pursuant to Section 78.751 of the NRS shall not be deemed exclusive of any other rights to which the indemnified party may be entitled and that the scope of indemnification shall continue as to directors, officers, employees or agents who have ceased to hold such positions, and to their heirs, executors and administrators.

Section 78.752 of the NRS provides that a corporation may purchase and maintain insurance or make other financial arrangements on behalf of a director, officer, employee or agent of the corporation against any liability asserted against him or her or incurred by him in any such capacity or arising out of his status as such whether or not the corporation would have the authority to indemnify him against such liabilities and expenses; provided, however, that no such financial arrangement may provide protection for a person adjudged by a court of competent jurisdiction, after exhaustion of all appeals therefrom, to be liable for intentional misconduct, fraud or a knowing violation of law, except with respect to the advancement of expenses or indemnification ordered by a court.

Our articles of incorporation provide that a director shall have no liability to us or our stockholders for monetary damages for conduct as a director, except for acts or omissions that involve intentional misconduct by the director, or a knowing violation of law by the director, or for conduct violating Section 78.138(7) of the NRS (relating to certain breaches of fiduciary duties), or for any transaction from which the director will personally receive a benefit in money, property or services to which the director is not legally entitled. Our articles of incorporation further requires us to indemnify, to the fullest extent permitted by the NRS, each person (including the heirs, executors, administrators or estate of such person) who is or was our director or officer or who is or was serving at our request as a director, officer, trustee, partner, agent or employee of another corporation, partnership, joint venture, trust or other enterprise, or who is or was our agent or employee (other than an officer) and as to whom we have agreed to grant such indemnity, against all fines, liabilities, settlements, costs and expenses, including attorneys' fees, asserted against such person or incurred by such person in such person's capacity as such director, officer, trustee, partner, agent or employee, or arising out of such person's status as such director, officer, trustee, partner, agent or employee. The foregoing right of indemnification is not be exclusive of other rights to which those seeking indemnification may be entitled. Our articles of incorporation also permits us to maintain insurance, at our expense, to protect us and any such person against any such fine, liability, cost or expense, including attorneys' fees, whether or not we would have the legal power to directly indemnify such person against such liability.

Our bylaws require us to, to the fullest extent permitted by the NRS and applicable Nevada law as in effect at any time, indemnify, hold harmless and defend any person who (i) was or is our director or officer or was or is a director or officer of our direct or indirect wholly-owned subsidiary, and (ii) was or is a party or is threatened to be made a party to, or was or is otherwise directly involved in (including as a witness), any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of the Company) by reason of the fact that such person was or is our director or officer or a director or officer of any direct or indirect wholly-owned subsidiary of the Company, or was or is serving at our request as a director, officer, employee, partner, member or agent of another corporation, partnership, limited liability company, joint venture, trust, employee benefit plan or other enterprise, whether the basis of such proceeding is alleged action in an official capacity or in any other capacity, against expenses (including attorneys' fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by such person in connection with such action, suit or proceeding if such person acted in good faith and in a manner such person reasonably believed to be in or not opposed to our best interests, and, with respect to any criminal action or proceeding, had no reasonable cause to believe such person's conduct was unlawful. The termination of any action, suit or proceeding by judgment, order, settlement, conviction, or upon a plea or nolo contendere or its equivalent, shall not, of itself, create a presumption that the person did not act in good faith and in a manner which such person reasonably believed to be in or not opposed to our best interests, and, with respect to any criminal action or proceeding, had reasonable cause to believe that such person's conduct was unlawful.

Our bylaws also require us to, indemnify, hold harmless and defend any person who (i) was or is our director or officer or was or is a director or officer of our direct or indirect wholly-owned subsidiary, and (ii) was or is a party or is threatened to be made a party to, or was or is otherwise directly involved in (including as a witness), any threatened, pending or completed action or suit by or in the right of the Company to procure a judgment in the Company's favor by reason of the fact that such person was or is our director or officer or a director or officer of our direct or indirect wholly-owned subsidiary, or was or is serving at our request as a director, officer, employee, partner, member or agent of another corporation, partnership, limited liability company, joint venture, trust, employee benefit plan or other enterprise, and whether the basis of such action, suit or proceeding is alleged action in an official capacity or in any other capacity, against expenses (including attorneys' fees) actually and reasonably incurred by such person in connection with the defense or settlement of such action or suit if such person acted in good faith and in a manner such person reasonably believed to be in or not opposed to our best interests; except that no indemnification shall be made in respect of any claim, issue or matter as to which such person shall have been adjudged to be liable to us unless and only to the extent that the courts in the State of Nevada or the court in which such action or suit was brought shall determine upon application that, despite the adjudication of liability but in view of all the circumstances of the case, such person is fairly and reasonably entitled to indemnity for such expenses which the court in the State of Nevada or such other court shall deem proper. Our bylaws also permit us to purchase and maintain insurance on behalf of any person who was or is our director, officer, employee or agent, or a director, officer, employee or agent of our direct or indirect wholly-owned subsidiary, or was or is serving at our request, as a director, officer, employee, partner, member or agent of another corporation, partnership, limited liability company, joint venture, trust, employee benefit plan or other enterprise against any liability asserted against such person and incurred by such person in any such capacity, or arising out of such person's status as such, whether or not we would have the power or the obligation to indemnify, hold harmless or defend such person against such liability under the applicable provisions of our bylaws.

We have entered into indemnification agreements with each of our executive officers and directors. These agreements provide that, subject to limited exceptions and among other things, we will indemnify each of our executive officers and directors to the fullest extent permitted by law and advance expenses to each indemnity in connection with any proceeding in which a right to indemnification is available.

We maintain general liability insurance that covers certain liabilities of our directors and officers arising out of claims based on acts or omissions in their capacities as directors or officers, including liabilities under the Securities Act. Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers, or persons who control the Company, we have been informed that, in the opinion of the SEC, such indemnification is against public policy as expressed in the Securities Act and is therefore unenforceable.

These provisions may discourage stockholders from bringing a lawsuit against our directors for breach of their fiduciary duty, or may have the practical effect in some cases of eliminating our stockholders' ability to collect monetary damages from our directors and officers. These provisions may also have the effect of reducing the likelihood of derivative litigation against directors and officers, even though such an action, if successful, might otherwise benefit us and our stockholders. Furthermore, a stockholder's investment may be adversely affected to the extent we pay the costs of settlement and damage awards against directors and officers pursuant to these indemnification provisions. The Sales Agreement that we have entered into with the Sales Agent, filed as Exhibit 1.2 to this registration statement, provides for indemnification by us of the Sales Agent, for certain liabilities, including liabilities arising under the Securities Act.

Item 16. Exhibits

Exhibit Number		Description of Document
1.1*		Form of Underwriting Agreement.
1.2		At-The-Market Issuance Sales Agreement, dated as of May 26, 2026, between Callan JMB Inc. and Alexander Capital, L.P.
4.1		Callan JMB Inc. Articles of Incorporation (incorporated by reference to Exhibit 3.1 to the Registrant's Registration Statement on Form S-1, as amended (File No. 333-282879), filed with the SEC on January 8, 2025)
4.2		Bylaws, adopted on February 2, 2024 (incorporated by reference to Exhibit 3.2 to the Registrant's Registration Statement on Form S-1, as amended (File No. 333-282879), filed with the SEC on January 8, 2025)
4.3*		Form of Indenture.
4.4*		Form of Senior Note.
4.5*		Form of Subordinated Note.
4.6*		Form of Warrant Agreement and Warrant Certificate.
4.7*		Form of Unit Agreement.
4.8*		Form of Certificate of Designation with respect to Preferred Stock.
5.1		Opinion of Sichenzia Ross Ference Carmel LLP relating to base prospectus.
5.2		Opinion of Sichenzia Ross Ference Carmel LLP relating to at-the-market sales agreement prospectus supplement.
23.1		Consent of Rosenberg Rich Baker Berman, P.A.
23.2		Consent of Sichenzia Ross Ference Carmel LLP (included in Exhibit 5.1).
23.3		Consent of Sichenzia Ross Ference Carmel LLP relating to at-the-market sales agreement prospectus supplement (included in Exhibit 5.2)
24.1		Power of Attorney (included on Signature Page)
25.1**		Statement of Eligibility of Trustee under the Indenture.
107		Filing Fee Table.

*	To be filed by amendment or by a report filed under the Securities Exchange Act of 1934, as amended, and incorporated herein by reference, if applicable.

**	To be filed, if applicable, in accordance with the requirements of Section 305(b)(2) of the Trust Indenture Act of 1939, as amended.

Item 17. Undertakings

The undersigned registrant hereby undertakes:

(1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:

(i) To include any prospectus required by Section 10(a)(3) of the Securities Act;

(ii) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the SEC pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20 percent change in the maximum aggregate offering price set forth in the "Calculation of Filing Fee Tables" or "Calculation of Registration Fee" table, as applicable, in the effective registration statement; and

(iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;

provided, however, that the undertakings set forth in paragraphs (1)(i), (1)(ii) and (1)(iii) above do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the SEC by the registrant pursuant to Section 13 or Section 15(d) of the Exchange Act that are incorporated by reference in this registration statement or are contained in a form of prospectus filed pursuant to Rule 424(b) that is part of this registration statement.

(2) That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

(3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

(4) That, for the purpose of determining liability under the Securities Act to any purchaser:

(i) Each prospectus filed by the registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and

(ii) Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) for the purpose of providing the information required by Section 10(a) of the Securities Act shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date.

(5) That, for the purpose of determining liability of the registrant under the Securities Act to any purchaser in the initial distribution of the securities, the undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser: (i) any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424; (ii) any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the undersigned registrant; (iii) the portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and (iv) any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.

(6) That, for purposes of determining any liability under the Securities Act, each filing of the registrant's annual report pursuant to Section 13(a) or 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

(7) For purposes of determining any liability under the Securities Act, the information omitted from the form of prospectus filed as part of this registration statement in reliance upon Rule 430A and contained in a form of prospectus filed by the registrant pursuant to Rule 424(b)(1) or (4) or 497(h) under the Securities Act shall be deemed to be part of this registration statement as of the time it was declared effective.

(8) For the purpose of determining any liability under the Securities Act, each post-effective amendment that contains a form of prospectus shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

(9) To file an application for the purpose of determining the eligibility of the trustee to act under subsection (a) of Section 310 of the Trust Indenture Act in accordance with the rules and regulations prescribed by the SEC under Section 305(b)(2) of the Trust Indenture Act.

Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the Spring Branch, Texas, on May 26, 2026.

CALLAN JMB INC.
By:	/s/ Wayne Williams
Name:	Wayne Williams
Title:	Chief Executive Officer, President, and Chairman of the Board (Principal Executive Officer)

POWER OF ATTORNEY

KNOW ALL BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Wayne Williams, as his or her true and lawful attorneys-in-fact and agents, with the full power of substitution, for him or her and in his or her name, place or stead, in any and all capacities, to sign any and all amendments to this registration statement (including post-effective amendments) and to sign any registration statement for the same offering covered by this registration statement that is to be effective upon filing pursuant to Rule 462(b) promulgated under the Securities Act, and all-post effective amendments thereto, and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or their, his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, as amended, this registration statement has been signed by the following persons in the capacities and on the dates indicated.

SIGNATURE		TITLE		DATE
/s/ Wayne Williams		Chief Executive Officer, President, and Chairman of the Board		May 26, 2026
Wayne Williams		(Principal Executive Officer) and Director
/s/ Christopher Shields		Interim Chief Financial Officer		May 26, 2026
Christopher Shields		(Principal Financial and Accounting Officer)
/s/ David J. Croyle, M.D.		Chief Medical Officer		May 26, 2026
David J. Croyle, M.D.
/s/ Eric L. Kash		Executive Vice President, and Director		May 26, 2026
Eric L. Kash
/s/ Mark Meller		Director		May 26, 2026
Mark Meller
/s/ Gerald Dial		Director		May 26, 2026
Gerald Dial
/s/ Liberty Duke		Director		May 26, 2026
Liberty Duke