Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * GROSSO CHRISTOPHER G 2. Issuer Name and Ticker or Trading Symbol RADNOSTIX INC [INIS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 4137 COMMERCE CIRCLE 3. Date of Earliest Transaction (Month/Day/Year) 06/26/2026 (Street) IDAHO FALLS, ID 83401 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Convertible Promissory Note(1)

$0.07

06/26/2026

P

$500,000(2)

06/26/2026

06/30/2031

Common Stock

7,142,857(2)

$500,000

$500,000(2)

I

By Kershner Grosso & Co.(3)

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
GROSSO CHRISTOPHER G 4137 COMMERCE CIRCLE IDAHO FALLS, ID 83401	X	X

Signatures

/s/ Shahe Bagerdjian, Attorney-in-fact		06/30/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Radnostix, Inc. (the "Company") entered into a convertible promissory note agreement (the "Note") with Kershner, Grosso & Co. ("Lender").The Note is in the principal amount of $500,000, bears simple interest at a fixed rate of 5% per annum with interest payable annually on each anniversary date of the Note. For the first two years, the Company may pay interest either in cash or in kind ("PIK Interest"). If the Company elects to PIK Interest, such PIK Interest is added to then outstanding principal for purposes of calculating future interest accruals. The Lender has the right to convert all or any portion of outstanding principal and accrued interest into shares of the Company's Common Stock at a conversion price of $0.07 per share subject to customary anti-dilution adjustments. The Company has the right to force conversion of the Note if the volume weighted-average closing price over thirty consecutive trading days is greater than $0.12 per share. The Note has a maturity date of June 3
(2)	The number of shares underlying the Note reflects the conversion of $500,000 principal at $0.07 per share, rounded down to the nearest whole share (7,142,857 shares); accrued interest is not reflected. The common stock issuable upon conversion may vary based on accrued interest and any applicable adjustments.
(3)	By Kershner, Grosso & Co., a company owned and controlled by the registrant.

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