Blossomhill Therapeutics Inc.

09/18/2026 | Press release | Distributed by Public on 09/18/2026 05:31

Quarterly Report for Quarter Ending June 30, 2026 (Form 10-Q)

Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with the financial statements and the related notes and other financial information included elsewhere in this Quarterly Report on Form 10-Q. In addition to historical financial information, the following discussion and analysis contains forward-looking statements based upon current beliefs, plans and expectations that involve risks, uncertainties and assumptions, such as statements regarding our plans, objectives, expectations, intentions and projections. Our actual results and timing of selected events may differ materially from those anticipated in these forward-looking statements as a result of many factors, including those discussed in the section titled "Risk Factors" and elsewhere in this Quarterly Report on Form 10-Q. You should carefully read the section titled "Risk Factors" to gain an understanding of the important factors that could cause actual results to differ materially from our forward-looking statements. Please also see the section titled "Special Note Regarding Forward Looking Statements."

Overview

We are a clinical-stage biopharmaceutical company applying our intentional, chemistry-based approach to develop innovative small molecule medicines that address significant unmet medical needs in cancer treatment. With each of our programs, we combine a deep understanding of disease and protein dynamics with our structure-based rational drug design expertise to identify the specific structural liabilities that limit existing therapies or approaches, and then design novel chemical scaffolds to directly address these limitations. Our scientific founder and the team we have assembled have a proven track record of developing innovative small molecule medicines that overcome the limitations of existing therapies, including multiple approved therapies that have delivered transformational patient outcomes.

Our initial development efforts are focused on our two clinical-stage programs: BH-30643, an investigational, non-covalent, macrocyclic, brain active, mutant-selective OMNI-EGFR inhibitor for the treatment of epidermal growth factor receptor (EGFR)-mutant non-small cell lung cancer (NSCLC), and BH-30236, an investigational macrocyclic CDC-like kinase (CLK) inhibitor being evaluated first in relapsed or refractory acute myeloid leukemia (R/R AML) and higher-risk myelodysplastic syndromes (HR-MDS). We also have a preclinical-stage product candidate, BH-501284, that leverages a novel chemical scaffold to selectively target and modulate activated KRAS.

Our most advanced product candidate, BH-30643, is an OMNI-EGFR inhibitor being evaluated in SOLARA, a global Phase 1/2 clinical trial in patients with EGFR-mutant NSCLC. While there are commercially available drugs targeting EGFR subtypes, there is a fragmentation of care in EGFR-mutant NSCLC because no drug is effective across all EGFR mutations. Moreover, the durability of response to prior-generation EGFR tyrosine kinase inhibitors (TKIs) has frequently been limited by the emergence of acquired on-target resistance mutations, notably the T790M gatekeeper mutation for first- and second-generation EGFR TKIs and C797S-mediated resistance for third-generation EGFR TKIs, such as osimertinib. BH-30643 is designed to address a broad spectrum of EGFR mutations, including classical mutations, on-target resistance mutations such as C797S and T790M, atypical mutations and exon 20 insertion mutations, with selectivity over wild-type EGFR. The SOLARA Phase 1/2 clinical trial is currently enrolling patients across dose expansion cohorts in both TKI-pretreated and TKI-naive settings, including a cohort with C797S resistance, a population with no currently approved targeted therapy, as well as in combination with carboplatin and pemetrexed. In September 2026, we presented updated data from the ongoing Phase 1/2 SOLARA trial in patients with EGFR C797S-positive NSCLC.

BH-30643 has demonstrated sub-nanomolar cellular in vitro potency against a broad spectrum of EGFR activating mutations, has been well-tolerated and demonstrated favorable pharmacokinetics in our ongoing SOLARA trial, and has confirmed radiographic responses in patients with EGFR-mutant NSCLC, including with C797S-positive NSCLC (with or without T790M). We believe the early clinical data observed in this trial support a near-term development path in C797S resistance and establish the foundation for BH-30643's potential against a broad spectrum of EGFR activating mutations.

In August 2026, the FDA granted Fast Track designation to BH-30643 for the treatment of adult patients with advanced or metastatic EGFR C797S-positive NSCLC after prior treatment with a third-generation EGFR TKI. An end-of-Phase 1 meeting with the FDA regarding the recommended Phase 2 dose and a potential accelerated approval pathway for BH-30643 in patients with advanced or metastatic EGFR-mutant C797S-positive NSCLC is planned in the fourth quarter of 2026. We expect to dose the first patient in our anticipated pivotal Phase 2 trial in the first quarter of 2027. We plan to report updated Phase 1 data on durability of response in the C797S population in the first half of 2027, initial Phase 1 data on a chemotherapy combination cohort in the second half of 2027, and updated Phase 1 data on durability of response in TKI-naive patients in the second half of 2027.

Our second clinical-stage product candidate, BH-30236, is a CLK inhibitor currently being evaluated in an ongoing Phase 1 clinical trial in patients with R/R AML and HR-MDS. BH-30236 represents a novel approach to cancer treatment through the inhibition of CLK to target aberrant alternative mRNA splicing (aberrant alternative splicing), a defining feature implicated in cancer progression and therapeutic resistance across both hematologic malignancies and solid tumors. Our Phase 1 clinical trial is currently enrolling patients in the dose escalation part of the trial and is evaluating BH-30236 as a monotherapy and in combination with the BCL-2

inhibitor venetoclax, the established standard of care therapy for AML patients. We also plan to explore the effect of BH-30236 in additional myeloid malignancies, including R/R myelofibrosis, as well as study the safety and antileukemic effect of BH-30236 with venetoclax plus azacitidine for the treatment of AML, with initial studies planned in R/R AML. We expect to report updated data on safety and anti-leukemic effects from the BH-30236 Phase 1 trial in the first half of 2027.

We are also advancing our pan-KRAS program, focusing on our preclinical product candidate, BH-501284, which is designed using a novel chemical scaffold to achieve prolonged, potent and selective inhibition of KRAS mutations, but sparing HRAS and NRAS. In preclinical studies, BH-501284 achieved pseudo-irreversible binding characteristics with high binding affinity and a prolonged target residence time exceeding 54 hours, while maintaining high selectivity for KRAS. We are currently conducting Investigational New Drug Application (IND) enabling studies of BH-501284 and plan to submit an IND in the first quarter of 2027.

We commenced our operations in 2020 and have devoted substantially all of our resources to date to conducting research and development, staffing our company, establishing and protecting our intellectual property portfolio, scaling up manufacturing processes and supplying our product candidates and other materials for our preclinical studies and clinical trials, leasing office and laboratory space, raising capital, business planning, and providing general and administrative support for these activities. Our operations to date have been funded primarily through the issuance and sale of shares of our convertible preferred stock. From our inception through June 30, 2026, we have raised aggregate gross proceeds of $257.2 million. Additionally, on August 10, 2026, we closed on our IPO, in which we issued and sold 9,375,000 shares of common stock at a public offering price of $16.00 per share. We also sold an additional 1,141,240 shares of common stock upon the partial exercise of the underwriters' option to purchase additional shares. The aggregate net proceeds of the IPO, inclusive of the partial exercise of the underwriters' option to purchase additional shares and after deducting underwriting discounts, commissions and offering expenses, was $151.7 million (IPO Proceeds). As of June 30, 2026, we had cash and cash equivalents of $95.4 million. Based on our current operating plan, we estimate that our existing cash and cash equivalents as of June 30, 2026, together with the IPO Proceeds, will be sufficient to fund our projected operating expenses and capital expenditures into the second quarter of 2028. However, this estimate is a forward-looking statement that involves risks and uncertainties, and actual results could vary materially. We have based this estimate on assumptions that may prove to be wrong, and we could deplete our capital resources sooner than we expect.

Since our inception, we have incurred significant operating losses. Our ability to generate enough product revenue to achieve profitability will depend heavily on the successful development and eventual commercialization of one or more of our current or future product candidates. Our net losses were $23.8 million and $13.2 million for the three months ended June 30, 2026 and 2025, respectively. As of June 30, 2026, we had an accumulated deficit of $179.8 million. Our net losses may fluctuate significantly from quarter-to-quarter and year-to-year, depending on the timing and extent of our clinical development activities, other research and development activities and capital expenditures. We expect to continue to incur significant and increasing expenses and operating losses for the foreseeable future as we seek to advance our product candidates through clinical and preclinical development, expand our research and development activities, seek regulatory approval, hire additional personnel and protect our intellectual property. In addition, if we obtain regulatory approval for any of our product candidates, we expect to incur significant commercialization expenses related to product manufacturing, marketing, sales and distribution. We may also incur expenses in connection with the in-licensing or acquisition of additional product candidates. Furthermore, we expect to incur increased expenses related to audit, legal, regulatory and tax-related services associated with maintaining compliance with exchange listing and SEC requirements, director and officer insurance premiums, board of director costs and investor relations costs associated with operating as a public company that we did not incur as a private company.

We have never generated any revenue from product sales and do not expect to generate any revenue from product sales unless and until we successfully complete development of and obtain regulatory approval for one or more of our product candidates, which will not be for several years, if ever. Accordingly, until such time as we can generate significant revenue from sales of any of our product candidates, if ever, we expect to finance our cash needs through public or private equity or debt financings or other capital sources, which may include future strategic collaborations and other strategic arrangements with third parties. However, we may not be able to raise additional funds or enter into such other arrangements when needed or on favorable terms, or at all. To the extent that we raise additional capital through the sale of equity or convertible debt securities, the ownership interest of our stockholders will be or could be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of our common stockholders. Debt financing and equity financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends. If we raise additional funds through future collaboration or licensing arrangements with third parties or other strategic transactions, we may have to relinquish rights to our intellectual property, future revenue streams, research programs, or product candidates or grant licenses on terms that may not be favorable to us and/or may reduce the value of our common stock. If we are unable to raise additional capital or enter into such arrangements when needed, we could be forced to delay, limit, reduce or terminate our research and development programs or future commercialization efforts, or grant rights to develop and market our product candidates even if we would otherwise prefer to develop and market such product candidates ourselves.

Because of the numerous risks and uncertainties associated with product development, we are unable to predict the timing or amount of increased expenses or when or if we will be able to achieve or maintain profitability. Even if we are able to generate product sales, we may not become profitable. If we fail to become profitable or are unable to sustain profitability on a continuing basis, we may be unable to continue our operations at planned levels and be forced to reduce or terminate our operations.

We do not own or operate, and currently have no plans to establish, any manufacturing facilities. We have engaged, and expect to continue to rely on, third-party contract manufacturers to produce and supply our product candidates for use in our preclinical studies and clinical trials. Because we are responsible for ensuring all aspects of our product candidates' compliance and quality but rely on third-party contract manufacturers and analytical testing laboratories, we must employ personnel with extensive technical, manufacturing, analytical, and quality experience to oversee our contract manufacturing and testing activities, and to compile manufacturing and quality information for our regulatory submissions. We believe our current third-party manufacturers have the scale, systems and experience to supply our currently planned clinical trials. None of our product candidates have been approved for sale. If and when our product candidates receive marketing approval, we intend to commercialize them on our own, or jointly with a partner, in the United States and potentially in other geographies. We plan to continually evaluate the economics of commercializing our product candidates versus other strategic commercialization arrangements.

Financial Overview

Components of Results of Operations

Operating Expenses

Our operating expenses consist of (i) research and development expenses and (ii) general and administrative expenses.

Research and Development

Our research and development expenses consist primarily of external and internal costs related to the discovery and development of product candidates.

External costs include:

expenses incurred in connection with the discovery and preclinical development of our product candidates, including under agreements with third parties, such as consultants and CROs;
expenses incurred in connection with conducting clinical trials including investigator grants, site payments, pass-through expenses and expenses incurred under agreements with CROs, central laboratories and other service providers engaged to support the conduct of our trials;
the cost of consultants engaged in research and development related services;
costs related to the outsourced development of CMC processes, scale-up of drug substance manufacturing and procuring our product candidates and other investigational materials for use in our clinical trials and preclinical studies; and
costs related to regulatory compliance and quality assurance.

Internal costs include:

personnel-related expenses, including salaries, bonuses, benefits, travel and stock-based compensation expenses for personnel engaged in research and development functions; and
facilities, depreciation, and other expenses, which include allocated expenses for rent and maintenance of facilities, insurance and supplies.

We expense research and development costs in the periods in which they are incurred. External expenses are recognized based on an evaluation of the progress to completion of specific tasks using information provided to us by our service providers or our estimate of the level of service that has been performed at each reporting date. Payments made prior to the receipt of goods or services to be used in research and development are recorded as prepaid expenses on the balance sheet until the goods are received or services are performed. We track external research and development costs of specific programs once a specific product candidate has been identified for development. We do not track our internal research and development costs on a program-by-program basis because these costs are associated with multiple programs and, as such, are not separately identified.

Research and development activities are central to our business model, and the successful development of our product candidates is highly uncertain. There are numerous factors associated with the approval and successful commercialization of any of our product candidates, including future trial design and various regulatory requirements, many of which cannot be determined with accuracy at this time based on our stage of development. Potential future changes to regulatory factors beyond our control may impact our

development programs. Product candidates in later stages of clinical development generally have higher development costs than those in earlier stages of clinical development, primarily due to the increased size and duration of later-stage clinical trials. In addition, we cannot predict which product candidates may be subject to future collaborations, when such arrangements will be secured, if at all, and to what degree such arrangements would affect our development plans and capital requirements.

Preclinical and clinical development timelines, the probability of success and total development costs can differ materially from expectations. We anticipate that we will make determinations as to which product candidates and indications to pursue and how much funding to direct to each product candidate on an ongoing basis in response to the results of ongoing and future preclinical studies and clinical trials, regulatory developments, and our ongoing assessments as to each product candidate's commercial potential. Therefore, we cannot reasonably estimate or know the nature, timing and estimated costs of the efforts that will be necessary to complete the development and commercialization of any of our product candidates or any future product candidates. However, we expect that our research and development expenses will increase substantially as we advance the preclinical and clinical development of our current and potential future product candidates.

Our future development costs may vary significantly based on factors, including, but not limited to:

the number and scope of preclinical and IND-enabling studies;
the number of clinical trials required for approval;
the number of sites included in the clinical trials;
the countries in which the trials are conducted;
the length of time required to enroll eligible patients;
the number of patients that participate in the clinical trials;
the number of doses evaluated in the clinical trials;
the costs of manufacturing our product candidates and the costs of procuring any third-party products for use in clinical trials of combination therapies;
the drop-out or discontinuation rates of patients;
potential additional safety monitoring requested by regulatory agencies;
the duration of patient participation in the clinical trials and follow-up;
the phase of development of the product candidate; and
the efficacy, safety and tolerability profile of the product candidate.

A change in the outcome of any of these variables may significantly impact the costs and timing associated with the development of our product candidates.

General and Administrative

General and administrative expenses support our key business functions as we grow and mature as a company. General and administrative expenses consist of personnel-related expenses, including salaries, bonuses, benefits, travel and stock-based compensation expenses for personnel engaged in executive, finance, legal and other administrative functions. Other significant general and administrative expenses include facilities-related costs, legal fees relating to intellectual property and corporate matters, audit costs, information technology-related costs and insurance costs.

We expect that our general and administrative expenses will increase substantially for the foreseeable future to support our continued and potentially growing research and development activities, pre-commercial preparation activities for our product candidates, and, if any product candidate receives marketing approval, commercialization activities.

Following the closing of the IPO, we also anticipate increased expenses related to audit, legal, regulatory and tax-related services associated with maintaining compliance with exchange listing and SEC requirements, director and officer insurance premiums, board of director costs and investor relations costs associated with operating as a public company.

Interest Income, net

Interest income, net consists primarily of interest on our cash equivalents held in money market funds.

Other Expenses, net

Other expenses, net consists primarily of foreign exchange gains and losses.

Results of Operations

Comparison of the three months ended June 30, 2026 and 2025

The following table summarizes our results of operations for each of the periods indicated (in thousands):

Three Months Ended June 30,

2026

2025

Change

Operating expenses:

Research and development

$

21,355

$

12,530

8,825

General and administrative

3,315

1,573

1,742

Total operating expenses

24,670

14,103

10,567

Loss from operations

(24,670

)

(14,103

)

(10,567

)

Other income (expense), net:

Interest income, net

915

859

56

Other expense, net

(3

)

-

(3

)

Total other income, net

912

859

53

Net loss

$

(23,758

)

$

(13,244

)

(10,514

)

Research and Development expenses

We track external research and development costs of specific programs once a specific product candidate has been identified for development. We do not track internal research and development costs on a program-by-program basis.

The following table summarizes our research and development expenses by program for each of the periods indicated (in thousands):

Three Months Ended June 30,

2026

2025

Change

External research and development expense:

BH-30643

$

8,966

$

3,827

$

5,139

BH-30236

1,967

1,339

628

BH-501284

2,045

61

1,984

Other programs and discovery

998

1,387

(389

)

Internal research and development expense:

Personnel-related

5,679

4,911

768

Facilities, overhead and other

1,700

1,005

695

Total research and development expense

$

21,355

$

12,530

$

8,825

Research and development expenses were $21.4 million for the three months ended June 30, 2026 compared to $12.5 million for the three months ended June 30, 2025. The increase of $8.8 million was primarily due to increases in both external and internal research and development costs, which are described in more detail below.

For BH-30643, external costs were $9.0 million for the three months ended June 30, 2026 compared to $3.8 million for the three months ended June 30, 2025. The increase of approximately $5.1 million was primarily due to significant growth in clinical trial enrollment and sites activated and an increase in manufacturing costs related to the clinical development of BH-30643. For BH-30236, external costs were $2.0 million for the three months ended June 30, 2026 compared to $1.3 million for the three months ended June 30, 2025. The increase of approximately $0.6 million was primarily due to the advancement of our ongoing clinical trial. For BH-501284, external costs were $2.0 million for the three months ended June 30, 2026 compared to $61 thousand for the three months ended June 30, 2025. The increase of $2.0 million was primarily comprised of manufacturing-related expenses to support IND-enabling studies and potential future clinical development. These increases in external research and development costs were partially offset by a decrease of $0.4 million in external expenses related to our other programs and discovery, as we focused investment toward the development of our most advanced product candidates.

Internal costs were $7.4 million for the three months ended June 30, 2026 compared to $5.9 million for the three months ended June 30, 2025. The increase of approximately $1.5 million was due to a $0.8 million increase in personnel-related expenses driven by our additional headcount as we expanded the number of research and development employees to support our programs, and an increase of approximately $0.7 million in facilities, overhead and other expenses.

General and administrative expenses. General and administrative expenses were $3.3 million for the three months ended June 30, 2026 compared to $1.6 million for the three months ended June 30, 2025. The increase of $1.7 million was comprised of a $0.6 million increase in personnel-related expenses, a $0.7 million increase in legal expenses, and an increase in general overhead and outside services expense of $0.4 million.

Interest income, net. Interest income, net was $0.9 million for each of the three months ended June 30, 2026 and 2025.

Comparison of the six months ended June 30, 2026 and 2025

The following table summarizes our results of operations for each of the periods indicated (in thousands):

Six Months Ended June 30,

2026

2025

Change

Operating expenses:

Research and development

$

41,256

$

22,102

19,154

General and administrative

5,521

3,455

2,066

Total operating expenses

46,777

25,557

21,220

Loss from operations

(46,777

)

(25,557

)

(21,220

)

Other income (expense), net:

Interest income, net

2,017

1,835

182

Other expense, net

(6

)

-

(6

)

Total other income, net

2,011

1,835

176

Net loss

$

(44,766

)

$

(23,722

)

(21,044

)

Research and Development Expenses

The following table summarizes our research and development expenses by program for each of the periods indicated (in thousands):

Six Months Ended June 30,

2026

2025

Change

External research and development expense:

BH-30643

$

18,516

$

5,608

$

12,908

BH-30236

3,714

2,388

1,326

BH-501284

2,629

61

2,568

Other programs and discovery

2,009

3,229

(1,220

)

Internal research and development expense:

Personnel-related

11,114

9,113

2,001

Facilities, overhead and other

3,274

1,703

1,571

Total research and development expense

$

41,256

$

22,102

$

19,154

Research and development expenses were $41.3 million for the six months ended June 30, 2026 compared to $22.1 million for the six months ended June 30, 2025. The increase of $19.2 million was primarily due to increases in both external and internal research and development costs, which are described in more detail below.

For BH-30643, external costs were $18.5 million for the six months ended June 30, 2026 compared to $5.6 million for the six months ended June 30, 2025. The increase of approximately $12.9 million was primarily due to significant growth in clinical trial enrollment and sites activated and an increase in manufacturing costs related to the clinical development of BH-30643. For BH-30236, external costs were $3.7 million for the six months ended June 30, 2026 compared to $2.4 million for the six months ended June 30, 2025. The increase of approximately $1.3 million was primarily due to the advancement of our ongoing clinical trial. For BH-501284, external costs were $2.6 million for the six months ended June 30, 2026 compared to $61 thousand for the six months ended June 30, 2025. The increase of $2.6 million was primarily comprised of manufacturing-related expenses to support IND-enabling studies and

potential future clinical development. These increases in external research and development costs were partially offset by a decrease of $1.2 million in external expenses related to our other programs and discovery, as we focused investment toward the development of our most advanced product candidates.

Internal costs were $14.4 million for the six months ended June 30, 2026 compared to $10.8 million for the six months ended June 30, 2025. The increase of approximately $3.6 million was due to a $2.0 million increase in personnel-related expenses driven by our additional headcount as we expanded the number of research and development employees to support our programs, and an increase of approximately $1.6 million in facilities, overhead and other expenses.

General and administrative expenses. General and administrative expenses were $5.5 million for the six months ended June 30, 2026 compared to $3.5 million for the six months ended June 30, 2025. The increase of $2.1 million was comprised of a $1.0 million increase in personnel-related expenses, a $0.5 million increase in legal expenses, and an increase in general overhead and outside services expense of $0.6 million.

Interest income, net. Interest income, net was $2.0 million and $1.8 million for the six months ended June 30, 2026 and 2025, respectively.

Liquidity and Capital Resources

Sources of Liquidity

We have incurred net losses and negative cash flows from operations since our inception and expect to continue to incur significant and increasing operating losses for the foreseeable future. We have never generated any revenue from product sales and do not expect to generate any revenue from product sales unless and until we successfully complete development of and obtain regulatory approval for one or more of our product candidates, which will not be for several years, if ever. In addition, if we obtain regulatory approval for any of our product candidates, we expect to incur significant commercialization expenses related to product sales, marketing, manufacturing and distribution.

From our inception through June 30, 2026, we have raised aggregate gross proceeds of $257.2 million to fund our operations, comprised primarily from our issuance of convertible preferred stock. Additionally, in August 2026, we closed on our IPO, in which we received the IPO Proceeds. As of June 30, 2026, we had cash and cash equivalents of $95.4 million and an accumulated deficit of $179.8 million. Based on our current operating plans, we expect the IPO Proceeds, together with our existing cash and cash equivalents, will be sufficient to fund our planned operating expenses and capital expenditure requirements into the second quarter of 2028. Our total future capital requirements will depend on many factors and are subject to the risks and uncertainties set forth in the section titled "Risk Factors."

Cash Flows

The following table sets forth a summary of the net cash flow activity for the periods indicated (in thousands):

Six Months Ended June 30,

2026

2025

Change

Net cash provided by (used in):

Operating activities

$

(44,174

)

$

(20,121

)

$

(24,053

)

Investing activities

(13

)

(997

)

984

Financing activities

2,881

85

2,796

Net decrease in cash

$

(41,306

)

$

(21,033

)

$

(20,273

)

Operating Activities

Net cash used in operating activities was $44.2 million and $20.1 million for the six months ended June 30, 2026 and 2025, respectively. The net cash used in operating activities during the six months ended June 30, 2026 consisted primarily of our net loss of $44.8 million, adjusted for $1.9 million in non-cash charges, primarily related to non-cash lease expense, stock-based compensation expense, and depreciation, as well as $1.3 million in net changes in operating assets and liabilities. The net cash used in operating activities during the six months ended June 30, 2025 consisted primarily of our net loss of $23.7 million, adjusted for $1.2 million in non-cash charges, primarily related to non-cash lease expense, stock-based compensation expense, and depreciation, as well as $2.5 million in net changes in operating assets and liabilities. The increase in cash used in operations during the six months ended June 30, 2026 in comparison to the six months ended June 30, 2025 was primarily attributable to increased research and development activities.

Investing Activities

Net cash used in investing activities was $13 thousand and $1.0 million for the six months ended June 30, 2026 and 2025, respectively, consisting primarily of purchases of property and equipment.

Financing Activities

Net cash provided by financing activities was $2.9 million and $85 thousand for the six months ended June 30, 2026 and 2025, respectively, consisting of proceeds from the exercise of stock options.

Future Funding Requirements

As of June 30, 2026, we had cash and cash equivalents of $95.4 million. Based upon our current operating plans, we believe that our existing cash, cash equivalents, and IPO Proceeds will be sufficient to fund our projected operations into the second quarter of 2028. However, our forecast of the period of time through which our financial resources will be adequate to support our operations is a forward-looking statement that involves risks and uncertainties, and actual results could vary materially. We have based this estimate on assumptions that may prove to be wrong, and we could deplete our capital resources sooner than we expect. Additionally, the process of conducting preclinical studies, manufacturing and testing product candidates in clinical trials is costly, and the timing of progress and expenses in these studies and trials is uncertain.

We have incurred significant losses and negative cash flows from operations since our inception. As of June 30, 2026, we had an accumulated deficit of $179.8 million.

Our future capital requirements will depend on many factors, including:

the scope, timing, progress, costs and results of discovery, preclinical development, and clinical trials for our current or future product candidates;
the number of clinical trials required for regulatory approval of our current or future product candidates, which may differ between the United States and other countries or regions;
the costs, timing and outcome of regulatory review of any of our current or future product candidates;
the costs associated with potentially acquiring or licensing additional product candidates, technologies or assets, including the timing and amount of any milestones, royalties or other payments due in connection with our acquisitions and licenses;
the cost of manufacturing clinical and commercial supplies of our current or future product candidates;
the costs and timing of preparing, filing and prosecuting patent applications, maintaining and enforcing our intellectual property rights and defending any intellectual property-related claims, including any possible claims by third parties that we are infringing upon their intellectual property rights;
our ability to establish and maintain possible future strategic collaborations or other arrangements and the financial terms of any such agreements, including the timing and amount of any future milestone, royalty or other payments due under any such agreement;
the costs and timing of future commercialization activities, including manufacturing, marketing, sales, and distribution, for any product candidate for which we receive regulatory approval;
the revenue, if any, received from commercial sales of the product candidate(s) for which we receive regulatory approval;
expenses to attract, hire and retain skilled personnel;
the costs of operating as a public company;
our ability to establish a commercially viable pricing structure and obtain approval for coverage and adequate reimbursement from third-party and government payors for any products that receive regulatory approval;
our ability to mitigate the impact of adverse macroeconomic conditions or geopolitical events and conflicts, including any health epidemics and their residual effects, bank failures or inflation and increased interest rates, on our preclinical and clinical development or operations;
the effect of competing technological and market developments; and
the extent to which we acquire or invest in businesses, products and technologies.

Until such time, if ever, that we can generate substantial revenue from sales of our product candidates, we expect to finance our cash needs through public or private equity or debt financings or other capital sources, which may include future strategic collaborations

and other strategic arrangements with third parties. However, we may not be able to raise additional funds or enter into such other arrangements when needed or on favorable terms, or at all. To the extent that we raise additional capital through the sale of equity or convertible debt securities, the ownership interest of our stockholders could be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of our common stockholders. Debt financing and equity financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends. If we raise additional funds through future collaboration or licensing arrangements with third parties or other strategic transactions, we may have to relinquish rights to our intellectual property, future revenue streams, research programs, or product candidates or grant licenses on terms that may not be favorable to us and/or may reduce the value of our common stock. If we are unable to raise additional funds or enter into such arrangements when needed, we could be forced to delay, limit, reduce or terminate our research and development programs or future commercialization efforts, or grant rights to develop and market our product candidates even if we would otherwise prefer to develop and market such product candidates ourselves.

Contractual Obligations and Commitments

As part of the capital needs to fund our ongoing operations, our material cash requirements include the following contractual obligations.

In June 2024, we entered into a non-cancelable operating lease for office and laboratory space in San Diego, California, with a ten-year initial term through June 2035 (Science Center Lease). The Science Center Lease commenced in June 2025 and includes aggregate monthly rent payments of approximately $0.3 million, with scheduled annual increases in base rent and rent abatements during an initial period of the term. Additionally, we are obligated to pay real estate taxes, maintenance costs, and other operating expenses allocable to the leased premises, which are variable in nature. We paid a cash security deposit of $0.9 million, which is refundable at the end of the lease term and is included in other long-term assets in our balance sheet as of June 30, 2026.

As of June 30, 2026, we have future remaining operating lease payments of $38.8 million relating to leases we have recognized in the balance sheet. These obligations are further described in Note 6 to our unaudited condensed financial statements appearing elsewhere in this Quarterly Report.

In addition, we enter into agreements and purchase orders in the normal course of business with vendors for the provision of goods and services. These agreements may include certain provisions for termination, with notice, which typically consist of payments for services provided or expenses incurred through the date of cancellation. We believe that our non-cancelable obligations under these agreements are not material.

Critical Accounting Estimates

Our financial statements are prepared in accordance with generally accepted accounting principles in the United States (GAAP). The preparation of our financial statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, costs, and expenses and the disclosure of contingent assets and liabilities in our financial statements and accompanying notes. We base our estimates on historical experience, known trends and events, and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. We evaluate our estimates and judgments on an ongoing basis. Our actual results may differ from these estimates under different assumptions or conditions.

There have been no significant changes to our critical accounting estimates from those described in Management's Discussion and Analysis of Financial Condition and Results of Operations - Critical Accounting Policies and Significant Estimates and Judgments and our audited financial statements as of and for the year ended December 31, 2025 as included in the Company's final prospectus dated August 7, 2026 related to its IPO filed pursuant to Rule 424(b)(4) under the Securities Act of 1933, as amended.

Recently Issued Accounting Pronouncements

A description of recently issued accounting pronouncements that may potentially impact our financial position and results of operations is disclosed in Note 2 to our audited financial statements and unaudited condensed financial statements included elsewhere in this Quarterly Report.

Emerging Growth Company and Smaller Reporting Company Status

We are an "emerging growth company" as defined in the JOBS Act, and we may remain an emerging growth company for up to five years following the completion of our initial public offering. For so long as we remain an emerging growth company, we are permitted and intend to rely on certain exemptions from various public company reporting requirements, including not being required to have

our internal control over financial reporting audited by our independent registered public accounting firm pursuant to Section 404(b) of the Sarbanes-Oxley Act, reduced disclosure obligations regarding executive compensation in our periodic reports and proxy statements, and exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and any golden parachute payments not previously approved.

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. This provision allows an emerging growth company to delay the adoption of some accounting standards until those standards would otherwise apply to private companies. We have elected to take advantage of the benefits of this extended transition period and, therefore, we are not subject to the same requirements to adopt new or revised accounting standards as other public companies that are not emerging growth companies; however, we may adopt certain new or revised accounting standards early. We would cease to be an emerging growth company upon the earliest to occur of: (i) the last day of the fiscal year in which we have $1.235 billion or more in annual revenue; (ii) the date on which we first qualify as a large accelerated filer under the rules of the SEC; (iii) the date on which we have, in any three-year period, issued more than $1.0 billion in non-convertible debt securities; and (iv) the last day of the fiscal year ending after the fifth anniversary of the completion of our initial public offering.

We are also a "smaller reporting company" as defined in the Exchange Act. We may continue to be a smaller reporting company even after we are no longer an emerging growth company. We may take advantage of certain of the scaled disclosures available to smaller reporting companies and will be able to take advantage of these scaled disclosures for so long as the market value of our voting and non-voting common stock held by non-affiliates is less than $250.0 million measured on the last business day of our second fiscal quarter, or our annual revenue is less than $100.0 million during the most recently completed fiscal year, and the market value of our voting and non-voting common stock held by non-affiliates is less than $700.0 million measured on the last business day of our second fiscal quarter.

Blossomhill Therapeutics Inc. published this content on September 18, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on September 18, 2026 at 11:31 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]