Climb Bio, Inc.
For the period ended Jun 30, 2025. Filed Aug 12, 2025.
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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.
Jun 30, 2025 · Filed Aug 12, 2025
What changed in Management’s Discussion and Analysis?
Read the current filingPrevious report: 10-Q
Period ended 2025-03-31; filed 2025-05-14.
0000950170-25-070902
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of OperationsCurrent report: 10-Q
Period ended 2025-06-30; filed 2025-08-12.
0000950170-25-106916
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of OperationsThe baseline is this issuer’s latest earlier reporting period of the same form that was filed before the current report. A previous 10-Q is a different quarter, not a year-over-year comparison. Amendments are excluded.
Compared 107 previous paragraphs and 98 current paragraphs.
35 unchanged; 33 reworded; 27 added; 30 removed; 9 previous and 3 current paragraphs rearranged.
Tables are not compared: 3 previous and 5 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.
A changed paragraph is not evidence that risk increased or decreased. An unchanged paragraph does not establish that risk stayed the same.
Added paragraphs (27)
Current report
employee-related expenses, including salaries and related costs, and stock-based compensation expense, for employees engaged in research and development functions;
Current report
expenses incurred in connection with the preclinical and clinical development of our product candidates, including under agreements with CROs and consultants;
Current report
the cost of third-party suppliers and manufacturers for material used in our preclinical and clinical development activities, including under agreements with contract development and manufacturing organizations (CDMOs);
Current report
facilities and other expenses, which include direct and allocated expenses including rent; and
Current report
payments made under third-party licensing agreements.
Current report
the progress, costs and results of our clinical trials of budoprutug in pMN, ITP, and SLE, our planned Phase 1 clinical trial of the SC formulation of budoprutug, and any future clinical trials of our product candidates;
Current report
Our acquired IPR&D expense consists of the fair value of consideration transferred in the Acquisition allocated to assets acquired that were in the research and development phase and determined to not have any alternative future use.
Current report
Research and development expenses increased from $1.0 million for the three months ended June 30, 2024 to $6.6 million for the three months ended June 30, 2025. The increase was due primarily to an increase of $4.5 million in costs incurred for our budoprutug program, which we acquired as part of the Acquisition on June 27, 2024, primarily related to clinical trial start-up and initiation activities and manufacturing. Personnel-related expenses increased by $0.6 million due to increased headcount.
Current report
Acquired IPR&D expense, related party was $51.7 million for the three months ended June 30, 2024. This amount represents the recognition of IPR&D expense from the Acquisition completed on June 27, 2024.
Current report
General and administrative expenses increased from $3.7 million for the three months ended June 30, 2024 to $4.1 million for the three months ended June 30, 2025. The increase was due to higher personnel-related expenses of $0.6 million from increased headcount, partially offset by higher consulting fees in the prior year in connection with the Acquisition.
Current report
Interest income increased from $1.5 million for the three months ended June 30, 2024 to $2.2 million for the three months ended June 30, 2025, due to higher invested balances in 2025 as compared to 2024.
Current report
Foreign currency loss was not material in either of the three months ended June 30, 2025 or 2024.
Current report
Comparison of the Six Months Ended June 30, 2025 and 2024
Current report
Research and development expenses increased from $2.1 million for the six months ended June 30, 2024 to $23.9 million for the six months ended June 30, 2025. The increase was due primarily to an increase in costs of $10.6 million for our budoprutug program, which we acquired as part of the Acquisition on June 27, 2024, related to clinical trial start-up and initiation activities and manufacturing costs. Costs of $9.3 million for our CLYM116 program, which we licensed in January 2025, consisted primarily of an upfront payment of $9.0 million under the Mabworks Agreement. Personnel-related expenses increased by $1.4 million due to increased headcount.
Current report
Acquired IPR&D expense, related party was $51.7 million for the six months ended June 30, 2024. This amount represents the recognition of IPR&D expense from the Acquisition completed on June 27, 2024.
Current report
General and administrative expenses increased from $5.6 million for the six months ended June 30, 2024 to $9.8 million for the six months ended June 30, 2025. The increase was primarily due to an increase in personnel-related expenses of $2.3 million from increased headcount and an increase in legal expenses of $1.2 million related to corporate matters.
Current report
Interest income increased from $2.8 million for the six months ended June 30, 2024 to $4.5 million for the six months ended June 30, 2025 due to higher invested balances in 2025 compared to 2024.
Current report
Foreign currency loss was not material in either of the six months ended June 30, 2025 or 2024.
Current report
For the six months ended June 30, 2025, net cash used in operating activities was $26.6 million, resulting from our net loss of $29.4 million, partially offset by $1.9 million in non-cash charges and cash provided by changes in our operating assets and liabilities of $0.9 million. Cash provided by changes in our operating assets and liabilities primarily consisted of a decrease in prepaid expense and other current assets of $1.3 million and an increase in accounts payable and accrued expenses and other current liabilities of $1.1 million, partially offset by an increase in other long-term assets of $1.4 million.
Current report
For the six months ended June 30, 2024, net cash used in operating activities was $2.5 million, resulting from our net loss of $56.6 million, partially offset by $52.8 million in non-cash charges, which consisted primarily of our IPR&D charge of $51.7 million and cash provided by changes in our operating assets and liabilities of $1.3 million. Cash provided by changes in our operating assets and liabilities primarily consisted of a decrease in prepaid expense and other current assets of $2.4 million, partially offset by a net decrease in accounts payable and accrued expenses and other current liabilities of $0.8 million.
Current report
Financing activities
Current report
For the six months ended June 30, 2025, there was no financing activities.
Current report
For the six months ended June 30, 2024, net cash provided by financing activities was $128.4 million, consisting of $119.7 million in proceeds received from the issuance of our common stock in the private placement completed in June 2024 in connection with the Acquisition and $8.7 million in proceeds from exercises of stock options.
Current report
the progress, costs and results of our clinical trials of budoprutug in pMN, ITP, and SLE, our planned Phase 1 clinical trial of the SC formulation of budoprutug, and any future clinical trials of our product candidates;
Current report
the costs involved in prosecuting and enforcing patent and other intellectual property claims;
Current report
We have a lease agreement, as amended, for office space in Wellesley Hills, Massachusetts with remaining fixed payments of $0.4 million through December 2026, with an option to extend the lease through December 2027 for additional fixed payments of $0.3 million.
Current report
Recently Issued Accounting Pronouncements Not Yet Adopted
Removed paragraphs (30)
Previous report
Operating Expenses
Previous report
Research and Development
Previous report
expenses incurred in connection with research, laboratory consumables and preclinical and clinical trial activities;
Previous report
the cost to manufacture drug products for use in our preclinical studies and clinical trials;
Previous report
expenses incurred under our intellectual property licenses; and
Previous report
consulting fees.
Previous report
Our indirect research and development expenses include:
Previous report
facility rent.
Previous report
Given our stage of development and the utilization of our resources across our current and legacy programs, we have not historically tracked our indirect research and development costs by program or indication.
Previous report
1 Represents the upfront payment and the associated direct transaction costs incurred in connection with the Mabworks Agreement.
Previous report
2 Includes expenses related to our legacy product candidates ETX-123 and ETX-155 and direct cross-program expenses.
Previous report
3 Includes indirect expenses related to facility rent.
Previous report
General and Administrative
Previous report
Other Income (Expense)
Previous report
Foreign Currency Loss
Previous report
Interest Income, net
Previous report
Operating Expenses
Previous report
Research and Development
Previous report
Research and development expenses increased from $1.1 million for the three months ended March 31, 2024 to $17.3 million for the three months ended March 31, 2025. The increase was due to (i) an increase of $15.5 million in direct research and development expenses, driven primarily by the upfront payment and the associated direct transaction costs of $9.1 million incurred in connection with the Mabworks Agreement and $6.1 million of expenses incurred during the period related to our budoprutug program and (ii) an $0.8 million increase in personnel-related expenses from increased headcount. This increase was partially offset by a $0.1 million decrease in facility rent.
Previous report
General and Administrative
Previous report
General and administrative expenses increased from $1.9 million for the three months ended March 31, 2024 to $5.7 million for the three months ended March 31, 2025. The increase was due to (i) a $2.1 million increase in other general and administrative expenses, largely due to an increase in consulting fees, legal expenses, and human resources costs and (ii) a $1.7 million increase in personnel-related expenses from increased headcount.
Previous report
Other Income (Expense)
Previous report
Foreign Currency Loss
Previous report
Foreign currency loss increased from a $33,000 loss for the three months ended March 31, 2024 to a $50,000 loss for the three months ended March 31, 2025. The increase in loss was driven primarily by unfavorable changes in foreign currency exchange rates for the three months ended March 31, 2025.
Previous report
Interest Income, net
Previous report
Interest income, net increased from $1.3 million for the three months ended March 31, 2024 to $2.3 million for the three months ended March 31, 2025, which was driven by an increase in investment income due to an increase in marketable securities in the current period.
Previous report
For the three months ended March 31, 2025, net cash used in operating activities was $15.4 million. This consisted of a net loss of $20.8 million, partially offset by: (i) $1.5 million in non-cash charges primarily related to stock-based compensation expense and (ii) changes in our operating assets and liabilities that resulted in a net increase of cash of $3.9 million.
Previous report
For the three months ended March 31, 2024, net cash used in operating activities was $1.8 million. This consisted primarily of a net loss of $1.7 million and changes in our operating assets and liabilities that resulted in a net decrease in cash of $0.6 million. The decrease in cash was partially offset by total non-cash adjustments of $0.5 million that primarily related to stock-based compensation expense.
Previous report
As discussed further in Note 6 in our unaudited condensed consolidated financial statements, we entered into a non-cancellable lease agreement for office space in Wellesley Hills, Massachusetts in October 2024 for a period of 24 months. As of March 31, 2025, our undiscounted future minimum lease payments under this non-cancelable lease agreement was approximately $0.5 million.
Previous report
Recent Accounting Pronouncements
Reworded paragraphs (33)
Previous wording
The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our unaudited condensed consolidated financial statements and related notes included in this Quarterly Report on Form 10-Q (Quarterly Report) and the audited financial statements and notes thereto as of and for the year ended December 31, 2024 and the related Management’s Discussion and Analysis of Financial Condition and Results of Operations, both of which are contained in our Annual Report on Form 10-K filed with the SEC on March 25, 2025. Some of the information contained in this discussion and analysis or set forth elsewhere in this Quarterly Report, including information with respect to our plans and strategy for our business, includes forward-looking statements that involve substantial risks and uncertainties. As a result of many factors, including those factors set forth in Part II, Item 1A. “Risk Factors” of this Quarterly Report, our actual results could differ materially from the results described in or implied by the forward-looking statements contained in the following discussion and analysis. For further information regarding our forward-looking statements, see “Cautionary Note Regarding Forward-Looking Statements” in this Quarterly Report.
Current wording
The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our unaudited condensed consolidated financial statements and related notes included in this Quarterly Report and the audited financial statements and notes thereto as of and for the year ended December 31, 2024 and the related Management’s Discussion and Analysis of Financial Condition and Results of Operations, both of which are contained in our Annual Report on Form 10-K filed with the SEC on March 25, 2025. Some of the information contained in this discussion and analysis or set forth elsewhere in this Quarterly Report, including information with respect to our plans and strategy for our business, includes forward-looking statements that involve substantial risks and uncertainties. As a result of many factors, including those factors set forth in Part II, Item 1A. “Risk Factors” of this Quarterly Report, our actual results could differ materially from the results described in or implied by the forward-looking statements contained in the following discussion and analysis. For further information regarding our forward-looking statements, see “Cautionary Note Regarding Forward-Looking Statements” in this Quarterly Report.
Previous wording
We are a clinical-stage biotechnology company committed to developing potential best-in-class therapeutics that address significant unmet need for the millions of patients living with immune-mediated diseases. We have built our pipeline by strategically acquiring or in-licensing product candidates that we believe have clear biological rationale and the potential to treat multiple indications.
Current wording
We are a clinical-stage biotechnology company committed to developing potential best-in-class therapeutics that address significant unmet need for the millions of patients living with immune-mediated diseases. We have built our pipeline by strategically acquiring or in-licensing product candidates that we believe have clear biological rationale, well-defined development paths and have the potential to address significant unmet needs.
Previous wording
Our cornerstone product candidate, budoprutug, is a clinical-stage anti-CD19 monoclonal antibody (mAb) which has the potential to address a broad range of B-cell mediated diseases. Budoprutug is designed to deplete CD19-positive B cells, including antibody secreting cells (plasma blasts), in order to directly reduce pathogenic autoantibodies. This reduction of autoantibodies has the potential to be a disease-modifying approach in the treatment of immune-mediated diseases. We believe we are well-positioned to advance budoprutug across three distinct opportunity sets in immune-mediated disease: primarily IgG4-mediated diseases, primarily single organ IgG1-3 mediated diseases and complex systemic diseases.
Current wording
Our lead product candidate, budoprutug, is a clinical-stage anti-CD19 monoclonal antibody (mAb) which has the potential to address a broad range of B-cell mediated diseases. Budoprutug is designed to deplete CD19-positive B cells, including antibody secreting cells (plasma blasts), in order to directly reduce pathogenic autoantibodies. This reduction of autoantibodies has the potential to be a disease-modifying approach in the treatment of multiple immune-mediated diseases. We believe we are well-positioned to advance budoprutug across three distinct opportunity sets in immune-mediated disease: primarily IgG4-mediated diseases, primarily single organ IgG1-3 mediated diseases and complex systemic diseases.
Previous wording
In March 2025, we received clearance from the U.S. Food and Drug Administration (FDA) for a Phase 2, dose range finding clinical trial of budoprutug in pMN. Budoprutug was previously evaluated in a Phase 1b clinical trial in pMN, the results of which suggest that budoprutug may offer the opportunity to induce remission of pMN in patients with moderate to severe disease. In that clinical trial, three out of five patients (60%) that received four doses of budoprutug and completed at least 48-weeks of follow-up achieved a complete remission of proteinuria, an important clinical endpoint in pMN. Notably, the FDA has granted budoprutug orphan drug designation for the treatment of pMN. We are advancing our Phase 2 clinical trial of budoprutug in pMN and anticipate dosing our first patient in the second half of 2025. Separately, in March 2025, we received clearance from the FDA for our investigational new drug (IND) application to evaluate budoprutug in a Phase 1b/2a clinical trial in ITP. In parallel, we are also pursuing regulatory clearance outside the United States for this clinical trial. We are in the process of activating sites in the Phase 1b/2a clinical trial and anticipate enrolling our first patient in the first half of 2025. Following the receipt of clearance in October 2024 from the FDA for our IND to evaluate budoprutug in a Phase 1b clinical trial in SLE, we are also pursuing regulatory clearance outside the United States for this clinical trial. We are in the process of activating sites for our Phase 1b clinical trial in SLE and anticipate enrolling our first patient in the first half of 2025. Each of these clinical trials of budoprutug in pMN, ITP and SLE will be conducted using an intravenous (IV) formulation of budoprutug. In parallel, we are advancing a subcutaneous formulation of budoprutug, which may provide the opportunity for a patient-tailored approach to treatment. We anticipate obtaining additional preclinical data for the subcutaneous formulation in the first half of 2025 and we currently plan to initiate a Phase 1 clinical trial in healthy volunteers with the subcutaneous formulation in the second half of 2025.
Current wording
In March 2025, we received clearance from the FDA for a Phase 2, dose range finding clinical trial of budoprutug in pMN. Budoprutug was previously evaluated in a Phase 1b clinical trial in pMN, the results of which suggest that budoprutug may offer the opportunity to induce remission of pMN in patients with moderate to severe disease. In that clinical trial, three out of five patients (60%) that received four doses of budoprutug and completed at least 48-weeks of follow-up achieved a complete remission of proteinuria, an important clinical endpoint in pMN. Notably, the FDA has granted budoprutug orphan drug designation for the treatment of pMN. We are advancing our Phase 2 clinical trial of budoprutug in pMN and anticipate dosing our first patient in the second half of 2025. Separately, in October 2024 and March 2025, we received clearance from the FDA for our IND applications to evaluate budoprutug in a Phase 1b clinical trial in SLE and a Phase 1b/2a clinical trial in ITP, respectively. We continue to activate sites and are enrolling and dosing patients in both trials. We also continue to pursue regulatory clearance outside of the United States for both clinical trials. Each of our clinical trials of budoprutug in pMN, ITP and SLE will be conducted using an intravenous (IV) formulation of budoprutug. In parallel, we are advancing a subcutaneous (SC) formulation of budoprutug, which together with the IV formulation, may provide the opportunity for a patient-tailored approach to treatment. We obtained additional non-clinical data for the SC formulation in the first half of 2025, which demonstrated high bioavailability and favorable tolerability. In August 2025, we received clearance for our clinical trial application (CTA) to initiate a Phase 1 clinical trial in healthy volunteers with the SC formulation in Australia. We anticipate initiating this trial in the coming weeks and expect to have initial clinical data in the first half of 2026.
Previous wording
In addition to budoprutug, we are also developing CLYM116, a preclinical stage anti-APRIL (A Proliferation-Inducing Ligand) mAb for patients with IgA nephropathy (IgAN) and other B-cell mediated diseases. CLYM116 utilizes a novel mechanism of action to prevent APRIL signaling, potently blocking binding of APRIL to its receptors and also promoting lysosomal APRIL degradation via a pH-dependent bind-and-release design. Through its unique binding profile, CLYM116 has the potential to enable more rapid, deep and durable inhibition of APRIL signaling. We are currently evaluating CLYM116 in IND-enabling studies. We expect to report preclinical data from the program in the second half of 2025, and we anticipate submitting an IND or clinical trial application for a Phase 1 clinical trial of CLYM116 in IgAN in the second half of 2025.
Current wording
In addition to budoprutug, we are also developing CLYM116, a preclinical stage anti-APRIL (A Proliferation-Inducing Ligand) mAb for patients with immunoglobulin A nephropathy (IgAN) and other B-cell mediated diseases. CLYM116 utilizes a novel mechanism of action to prevent APRIL signaling, potently blocking binding of APRIL to its receptors and also promoting lysosomal APRIL degradation via a pH-dependent bind-and-release design. Through its unique binding profile, and this ‘sweeper’ mechanism of action, CLYM116 has the potential to enable more rapid, deep and durable inhibition of APRIL signaling. We are currently evaluating CLYM116 in IND-enabling studies. We expect to report preclinical data from the program in September 2025, and we anticipate submitting an IND or CTA for CLYM116 in IgAN in the second half of 2025.
Previous wording
Previously, we focused primarily on developing novel therapies for neuronal excitability disorders to address unmet needs in psychiatry, epilepsy, chronic pain, and other disorders of the peripheral and central nervous systems, and our lead program was ETX-123, a Kv7.2/3 potassium channel opener. ETX-123 was designed to harness the efficacy of the Kv7.2/3 channel mechanism while attempting to improve the safety and tolerability relative to earlier molecules, based on our insights into the mechanisms of toxicity and the potency and selectivity profile. In July 2023, we made the determination to pause further development of our Kv7 program, and we continue to evaluate our Kv7 program, including seeking a partner for further development.
Current wording
Previously, we focused primarily on developing novel therapies for neuronal excitability disorders to address unmet needs in psychiatry, epilepsy, chronic pain, and other disorders of the peripheral and central nervous systems, and our lead program was ETX-123, a Kv7.2/3 potassium channel opener. In July 2023, we made the determination to pause further development of our Kv7 program, and we continue to evaluate our Kv7 program, including seeking a partner for further development.
Previous wording
We have incurred significant operating losses since inception, as we have devoted substantially all of our resources to organizing and staffing our company, identifying potential product candidates, business planning, raising capital, undertaking research, executing preclinical studies and clinical development trials, and providing general and administrative support for business activities. We incurred net losses of $20.8 million and $1.7 million for the three months ended March 31, 2025 and 2024, respectively. We had an accumulated deficit of $250.7 million and $229.9 million as of March 31, 2025 and December 31, 2024, respectively.
Current wording
We have incurred significant operating losses since inception, as we have devoted substantially all of our resources to organizing and staffing our company, identifying, acquiring and in-licensing potential product candidates, business planning, raising capital, undertaking research, executing preclinical studies and clinical development trials, and providing general and administrative support for business activities. We incurred net losses of $8.7 million and $29.4 million for the three and six months ended June 30, 2025, respectively. We had an accumulated deficit of $259.3 million as of June 30, 2025.
Previous wording
We do not have any products approved for sale and have not generated any revenue from product sales since our inception. Our ability to generate product revenue will depend on the successful development, regulatory approval and eventual commercialization of one or more of our product candidates, if approved. We cannot assure you that we will ever be profitable or generate positive cash flow from operating activities. We expect to continue to incur operating losses for the foreseeable future.
Current wording
Since our inception, we have primarily funded our operations with net proceeds from the sale and issuance of shares of our redeemable convertible preferred stock, our initial public offering (IPO) of common stock, and the sale and issuance of shares in a private placement of our common stock that was completed in June 2024 in connection with the Acquisition. We do not have any products approved for sale and have not generated any revenue from product sales since our inception. Our ability to generate product revenue will depend on the successful development, regulatory approval and eventual commercialization of one or more of our product candidates, if approved. We cannot assure you that we will ever be profitable or generate positive cash flow from operating activities. We expect to continue to incur operating losses for the foreseeable future. Until such time, if ever, as we can generate significant revenue from product sales, we may finance our operations through equity offerings, debt financings, collaborations, strategic alliances and marketing, distribution or licensing arrangements. Adequate funding may not be available when needed or on terms acceptable to us, or at all.
Previous wording
If we are unable to raise additional capital as needed, we may have to significantly delay, scale back or discontinue any future development of our product candidates. Our ability to raise additional funds may be adversely impacted by potential worsening global economic conditions and the recent disruptions to, and volatility in, the credit and financial markets in the U.S. and worldwide, resulting from increased volatility in the trading prices for shares in the biopharmaceutical industry, or otherwise. Further, imposition of tariffs and other trade restrictions by the U.S., as well as reciprocal trade restrictions imposed by other countries, could adversely affect global economies, financial markets and the overall environment in which we do business, as further described in Part II, Item 1A, “Risk Factors” of this Quarterly Report.
Current wording
If we fail to obtain necessary capital when needed on acceptable terms, or at all, it could force us to delay, limit, reduce or terminate our product development programs, commercialization efforts or other operations. Insufficient liquidity may also require us to relinquish rights to product candidates at an earlier stage of development or on less favorable terms than we would otherwise choose. Our ability to raise additional funds may be adversely impacted by potential worsening global economic conditions and the recent disruptions to, and volatility in, the credit and financial markets in the United States (U.S.) and worldwide, resulting from increased volatility in the trading prices for shares in the biopharmaceutical industry, or otherwise. Further, imposition of tariffs and other trade restrictions by the U.S., as well as reciprocal trade restrictions imposed by other countries, could adversely affect global economies, financial markets and the overall environment in which we do business, as further described in Part II, Item 1A, “Risk Factors” of this Quarterly Report.
Previous wording
Since our inception, we have primarily funded our operations with an aggregate of $328.0 million in net proceeds from the sale and issuance of shares of our redeemable convertible preferred stock, our initial public offering of our common stock, and the sale and issuance of shares in a private placement of our common stock that was completed in June 2024. We had cash, cash equivalents and marketable securities of $197.8 million and $212.5 million as of March 31, 2025 and December 31, 2024, respectively. Based on our current operating plan, we estimate that our cash, cash equivalents and marketable securities will be sufficient to fund our planned operations through 2027. We have based this estimate on assumptions that may prove to be wrong, and we could use our available capital resources sooner than we currently anticipate, in which case we would be required to obtain additional financing, which may not be available to us on acceptable terms, or at all.
Current wording
Based on our current operating plan, we estimate that our cash, cash equivalents and marketable securities will be sufficient to fund our planned operations through 2027. We have based this estimate on assumptions that may prove to be wrong, and we could use our available capital resources sooner than we currently anticipate, in which case we would be required to obtain additional financing, which may not be available to us on acceptable terms, or at all. See “—Liquidity and Capital Resources”.
Previous wording
On June 27, 2024, we acquired 100% of the share capital of Tenet Medicines, Inc. (Tenet) in exchange for 5,560,047 shares of our common stock, valued at $41.9 million, or $7.53 per share (the Acquisition). The Acquisition is accounted for as an asset acquisition. The total cost of the asset acquisition was $52.8 million, which also included (i) $5.8 million of direct transaction costs incurred and (ii) $5.0 million related to a loan provided to Tenet prior to the closing of the Acquisition that was effectively settled upon the closing of the Acquisition. We recognized in-process research and development (IPR&D) expense of $51.7 million for the year ended December 31, 2024, as the IPR&D was determined to have no future alternative use.
Current wording
On June 27, 2024, we acquired 100% of the share capital of Tenet Medicines, Inc. (Tenet) in exchange for 5,560,047 shares of our common stock, valued at $41.9 million, or $7.53 per share (the Acquisition). The Acquisition was accounted for as an asset acquisition. The total cost of the asset acquisition was $52.8 million, including transaction costs. We recognized in-process research and development (IPR&D) expense of $51.7 million for the year ended December 31, 2024, as the IPR&D was determined to have no future alternative use.
Previous wording
On January 8, 2025, we entered into a technology transfer and exclusive license agreement (the Mabworks Agreement) with Beijing Mabworks Biotech Co., Ltd. (Mabworks) for rights to develop and commercialize CLYM 116 in the territory outside of Greater China. Under the terms of the Mabworks Agreement, we made an upfront cash payment of $9.0 million to Mabworks, and we will be required to make certain additional payments upon the achievement of specified development, regulatory and commercial milestones, and to pay low- to mid-single digit tiered royalties on net sales outside of Greater China. The Mabworks Agreement was accounted for as an asset acquisition and the upfront payment was included in research and development expenses in the condensed consolidated statement of operations for the three months ended March 31, 2025.
Current wording
On January 8, 2025, we entered into the Mabworks Agreement for rights to develop and commercialize CLYM 116 in the territory outside of Greater China. Under the terms of the Mabworks Agreement, we made an upfront cash payment of $9.0 million to Mabworks. We will be required to make certain additional payments upon the achievement of specified development, regulatory and commercial milestones, and to pay low- to mid-single digit tiered royalties on net sales outside of Greater China. The upfront payment of $9.0 million was included in research and development expenses for the first quarter of 2025.
Previous wording
Our operating expenses consist of (i) research and development expenses and (ii) general and administrative expenses.
Current wording
Our operating expenses consist of (i) research and development expenses, (ii) acquired IPR&D expense, related party, and (iii) general and administrative expenses.
Previous wording
Our research and development expenses consist of direct and indirect costs incurred in connection with our discovery efforts, preclinical studies, expenses incurred under our intellectual property licenses, and clinical trial activities related to our pipeline, including budoprutug, CLYM116 and our previous product candidates ETX-123 and ETX-155.
Current wording
Research and development expenses consist of costs incurred for our research and development activities, including preclinical studies and the development of our product candidates, budoprutug and CLYM116, and our previous product candidates, ETX-123 and ETX-155, including the following:
Previous wording
We expense research and development costs as incurred. Non-refundable advance payments for goods and services that will be used over time for research and development are capitalized and recognized as goods are delivered or as the related services are performed.
Current wording
We expense research and development costs to operations as incurred. Advance payments for goods or services to be received in the future for use in research and development activities are recorded as prepaid expenses. The prepaid amounts are expensed as the related goods are delivered or the services are performed.
Previous wording
Our direct research and development expenses include:
Current wording
Our direct research and development expenses are tracked on a program-by-program basis and consist primarily of external costs, such as fees paid to consultants, contractors, CDMOs and CROs in connection with our preclinical and clinical development activities. We do not allocate employee costs, costs associated with facility expenses, or other indirect costs, to specific programs because these costs are deployed across multiple product development programs and, as such, are not separately classified.
Previous wording
The timelines and costs associated with research and development activities are uncertain and can vary significantly among product candidates and development programs due to the inherently unpredictable nature of preclinical and clinical development. We anticipate that we will make determinations as to which indications to pursue in connection with our clinical development of budoprutug, CLYM116, or any product candidates we may develop and how much funding to direct to each such indication on an ongoing basis in response to preclinical and clinical results, regulatory developments, and ongoing assessments as to each such indication’s commercial potential. We will need to raise substantial additional capital in the future.
Current wording
The timelines and costs associated with research and development activities are uncertain and can vary significantly among product candidates and development programs due to the inherently unpredictable nature of preclinical and clinical development. We anticipate that we will make determinations as to which indications to pursue in connection with our clinical development of budoprutug, CLYM116, or any product candidates we may develop and how much funding to direct to each such indication on an ongoing basis in response to preclinical and clinical results, regulatory developments, and ongoing assessments as to each such indication’s commercial potential.
Previous wording
the potential delays in our preclinical studies, our development programs and our ongoing and planned clinical trial activities due to the effects of global events, including macroeconomic conditions and continued supply chain disruptions;
Current wording
the potential delays in our preclinical studies, our development programs and our ongoing and planned clinical trial activities due to the effects of global events, including macroeconomic conditions and supply chain disruptions;
Previous wording
the impact of inflationary pressures on salaries and wages, and costs of goods and transportation expenses, including the imposition of tariffs and other trade restrictions by the U.S., as well as reciprocal trade restrictions imposed by other countries (as further described Part II, Item 1A, “Risk Factors” of this Quarterly Report), among other things;
Current wording
the impact of inflationary pressures on salaries and wages, and costs of goods and transportation expenses, including the imposition of tariffs and other trade restrictions by the U.S., as well as reciprocal trade restrictions imposed by other countries (as further described Part II, Item 1A, “Risk Factors” of this Quarterly Report), among other things; and
Previous wording
Our general and administrative expenses consist primarily of personnel-related expenses such as salaries, bonuses, benefits, stock-based compensation, and termination benefits, for our personnel in executive, finance and accounting, human resources, business development and other administrative functions. Other significant general and administrative expenses include legal fees relating to corporate matters and intellectual property, professional fees for accounting, audit, regulatory, tax and consulting services, insurance costs, as well as investor and public relations costs.
Current wording
Our general and administrative expenses consist primarily of personnel-related expenses such as salaries, bonuses, benefits, stock-based compensation, and termination benefits, for our personnel in executive, finance and accounting, legal, human resources, business development and other administrative functions. Other significant general and administrative expenses include legal fees relating to corporate matters and intellectual property, professional fees for accounting, audit, regulatory, tax and consulting services, insurance costs, as well as investor and public relations costs.
Previous wording
Our interest income consists of interest earned on our cash, cash equivalents and marketable securities and adjustments related to amortization of purchase premiums and accretion of discounts of marketable securities.
Current wording
Our interest income consists of interest earned on our cash, cash equivalents and marketable securities, including amortization of purchase premiums and accretion of discounts of marketable securities.
Previous wording
Our foreign currency loss consists of foreign exchange losses resulting from remeasurement and foreign currency transactions between foreign currency and the U.S. Dollar.
Current wording
Our foreign currency loss consists of foreign exchange losses resulting from remeasurement of foreign currency transactions to the U.S. Dollar.
Previous wording
The following table sets forth our disaggregated research and development expenses (in thousands):
Current wording
The following table sets forth our research and development expenses (in thousands):
Previous wording
Since our inception, we have primarily funded our operations with an aggregate of $328.0 million in net proceeds from the sale and issuance of shares of our redeemable convertible preferred stock, our initial public offering of our common stock and the sale and issuance of shares of our common stock in a private placement in June 2024. We have not generated any revenue from product sales or otherwise. We have incurred net losses from operations since our inception and anticipate we will continue to incur net losses for the foreseeable future. As of March 31, 2025 and December 31, 2024, we had cash, cash equivalents and marketable securities of $197.8 million and $212.5 million, respectively, and an accumulated deficit of $250.7 million and $229.9 million, respectively.
Current wording
Since our inception, we have primarily funded our operations with net proceeds from the sale and issuance of shares of our redeemable convertible preferred stock, our IPO of common stock and the sale and issuance of shares of our common stock in a private placement completed in June 2024 in connection with the Acquisition. We have not generated any revenue from product sales or otherwise. We have incurred net losses from operations since our inception and anticipate we will continue to incur net losses for the foreseeable future. As of June 30, 2025, we had cash, cash equivalents and marketable securities of $187.4 million.
Previous wording
In March 2025, we entered into an Equity Distribution Agreement (the Distribution Agreement) with Oppenheimer & Co. Inc., as agent (Oppenheimer), pursuant to which we may offer and sell shares of our common stock from time to time through Oppenheimer having an aggregate offering price of up to $22.35 million in an at the market offering. During the three months ended March 31, 2025, we did not issue and sell any shares of our common stock pursuant to the Distribution Agreement.
Current wording
In March 2025, we entered into an Equity Distribution Agreement (the Distribution Agreement) with Oppenheimer & Co. Inc., as agent (Oppenheimer), pursuant to which we may offer and sell shares of our common stock from time to time through Oppenheimer having an aggregate offering price of up to $22.4 million in an at the market offering. During the three and six months ended June 30, 2025, we did not issue and sell any shares of our common stock pursuant to the Distribution Agreement.
Previous wording
For the three months ended March 31, 2025, net cash used in investing activities was $42.8 million. This consisted of purchases of $58.8 million of marketable securities, partially offset by $16.0 million in proceeds received from maturities of marketable securities.
Current wording
For the six months ended June 30, 2025, net cash used in investing activities was $38.0 million, consisting primarily of purchases of $79.4 million of marketable securities, partially offset by $41.5 million in proceeds received from maturities of marketable securities.
Previous wording
For the three months ended March 31, 2024, net cash provided by investing activities was $13.8 million, which consisted of proceeds received from maturities of marketable securities.
Current wording
For the six months ended June 30, 2024, net cash provided by investing activities was $4.1 million, consisting of $13.8 million in proceeds received from maturities of marketable securities, partially offset by the issuance of a promissory loan of $5.0 million and cash paid of $4.6 million in connection with the Acquisition.
Previous wording
We believe our cash, cash equivalents and marketable securities of $197.8 million as of March 31, 2025 will be sufficient to fund our operations through 2027. We have based this estimate on assumptions that may prove to be wrong, and we could exhaust our available capital resources sooner than we expect.
Current wording
We believe our existing cash, cash equivalents and marketable securities will be sufficient to fund our operations through 2027. We have based this estimate on assumptions that may prove to be wrong, and we could exhaust our available capital resources sooner than we expect. We anticipate that our expenses will increase for the foreseeable future as we continue to advance our current product candidatesand any product candidates we may develop, expand our corporate infrastructure, and incur costs associated with potential commercialization.
Previous wording
We are subject to all of the risks typically related to the development of biopharmaceutical candidates, and we may encounter unforeseen expenses, difficulties, complications, delays, and other unknown factors that may adversely affect our business.
Current wording
We are subject to all of the risks typically related to the development of biopharmaceutical candidates, and we may encounter unforeseen expenses, difficulties, complications, delays, and other unknown factors that may adversely affect our business. Our future funding requirements will depend on many factors, including the following:
Previous wording
the potential delays in our preclinical studies, our development programs and our ongoing and planned clinical trial activities due to the effects of global events, including macroeconomic conditions and continued supply chain disruptions;
Current wording
the potential delays in our preclinical studies, our development programs and our ongoing and planned clinical trial activities due to the effects of global events, including macroeconomic conditions and supply chain disruptions;
Previous wording
In the normal course of business, we enter into contracts with contract research organizations (CROs), contract development and manufacturing organizations (CDMOs), and other third parties for preclinical studies and clinical trials, research and development supplies, and other testing and manufacturing services. These contracts do not contain material minimum purchase commitments and generally provide us with the option to cancel, reschedule and adjust our requirements based on our business needs, prior to the delivery of goods or performance of services. However, it is not possible to predict the maximum potential amount of future payments under these agreements due to the conditional nature of our obligations and the unique facts and circumstances involved in each agreement.
Current wording
In the normal course of business, we enter into contracts with CROs, CDMOs, and other third parties for preclinical studies and clinical trials, supply of materials and manufacturing services. These contracts do not contain material minimum purchase commitments and generally provide us with the option to cancel, reschedule and adjust our requirements based on our business needs, prior to the delivery of goods or performance of services. However, it is not possible to predict the maximum potential amount of future payments under these agreements due to the conditional nature of our obligations and the unique facts and circumstances involved in each agreement.
Previous wording
A summary of our critical accounting policies is presented in our audited consolidated financial statements and notes thereto as of and for the year ended December 31, 2024 included in our Annual Report on Form 10-K. There were no material changes to our critical accounting policies during the three months ended March 31, 2025.
Current wording
A summary of our critical accounting policies is presented in our audited consolidated financial statements and notes thereto as of and for the year ended December 31, 2024 included in our Annual Report on Form 10-K. There were no material changes to our critical accounting policies during the three or six months ended June 30, 2025.
Previous wording
We are an emerging growth company, as defined in the Jumpstart Our Business Startups Act (JOBS Act). Under the JOBS Act, emerging growth companies can delay adopting new or revised accounting standards issued after the enactment of the JOBS Act until those standards apply to private companies. Other exemptions and reduced reporting requirements under the JOBS Act for emerging growth companies include presentation of only two years of audited consolidated financial statements in a registration statement for an initial public offering, an exemption from the requirement to provide an auditor’s report on internal controls over financial reporting pursuant to the Sarbanes-Oxley Act, an exemption from any requirement that may be adopted by the Public Company Accounting Oversight Board regarding mandatory audit firm rotation, and less extensive disclosure about our executive compensation arrangements. We have elected to use the extended transition period for complying with new or revised accounting standards that have different effective dates for public and private companies until the earlier of the date that (i) we are no longer an emerging growth company or (ii) we affirmatively and irrevocably opt out of the extended transition period provided in the JOBS Act.
Current wording
We are an emerging growth company, as defined in the JOBS Act. Under the JOBS Act, emerging growth companies can delay adopting new or revised accounting standards issued after the enactment of the JOBS Act until those standards apply to private companies. Other exemptions and reduced reporting requirements under the JOBS Act for emerging growth companies include an exemption from the requirement to provide an auditor’s report on internal controls over financial reporting pursuant to the Sarbanes-Oxley Act, an exemption from any requirement that may be adopted by the Public Company Accounting Oversight Board regarding mandatory audit firm rotation, and less extensive disclosure about our executive compensation arrangements. We have elected to use the extended transition period for complying with new or revised accounting standards that have different effective dates for public and private companies until the earlier of the date that (i) we are no longer an emerging growth company or (ii) we affirmatively and irrevocably opt out of the extended transition period provided in the JOBS Act. As a result, our consolidated financial statements may not be comparable to companies that comply with the new or revised accounting pronouncements as of public company effective dates. We will remain an emerging growth company under the JOBS Act until the earliest of (i) the last day of our first fiscal year in which we have total annual gross revenue of $1.235 billion or more, (ii) the date on which we have issued more than $1.0 billion of non-convertible debt instruments during the previous three fiscal years, (iii) the date on which we are deemed a “large accelerated filer” under the rules of the SEC with at least $700.0 million of outstanding equity securities held by non-affiliates, or (iv) December 31, 2026.
Rearranged current paragraphs (3)
Current report — wording carried from elsewhere
The following table sets forth our results of operations (in thousands):
Current report — wording carried from elsewhere
The following table sets forth our research and development expenses (in thousands):
Current report — wording carried from elsewhere
See Note 2 to our unaudited condensed consolidated financial statements included in this Quarterly Report.
Rearranged previous paragraphs (9)
Previous report — wording carried elsewhere
Until such time, if ever, as we can generate significant revenue from product sales, we may finance our operations through equity offerings, debt financings, collaborations, strategic alliances and marketing, distribution or licensing arrangements. Adequate funding may not be available when needed or on terms acceptable to us, or at all.
Previous report — wording carried elsewhere
If we fail to obtain necessary capital when needed on acceptable terms, or at all, it could force us to delay, limit, reduce or terminate our product development programs, commercialization efforts or other operations.
Previous report — wording carried elsewhere
Insufficient liquidity may also require us to relinquish rights to product candidates at an earlier stage of development or on less favorable terms than we would otherwise choose.
Previous report — wording carried elsewhere
personnel-related expenses, such as salaries, bonuses, benefits, stock-based compensation expense, and termination benefits, for our scientific personnel performing research and development activities; and
Previous report — wording carried elsewhere
We anticipate that our expenses will increase for the foreseeable future as we continue to advance our current product candidatesand any product candidates we may develop, expand our corporate infrastructure, and incur costs associated with potential commercialization.
Previous report — wording carried elsewhere
Our future funding requirements will depend on many factors, including the following:
Previous report — wording carried elsewhere
the cost of commercialization activities if budoprutug, CLYM116, or any product candidates we may develop are approved for sale, including marketing, sales and distribution costs; and
Previous report — wording carried elsewhere
See Note 1 to our unaudited condensed consolidated financial statements included in this Quarterly Report and see Note 2 to our annual consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2024.
Previous report — wording carried elsewhere
As a result, our consolidated financial statements may not be comparable to companies that comply with the new or revised accounting pronouncements as of public company effective dates. We will remain an emerging growth company under the JOBS Act until the earliest of (i) the last day of our first fiscal year in which we have total annual gross revenue of $1.235 billion or more, (ii) the date on which we have issued more than $1.0 billion of non-convertible debt instruments during the previous three fiscal years, (iii) the date on which we are deemed a “large accelerated filer” under the rules of the SEC with at least $700.0 million of outstanding equity securities held by non-affiliates, or (iv) December 31, 2026.