6 unchanged sentences
Separation from Former Parent
−Removed: In January 2024, Inhibrx, Inc., or the Former Parent, announced its intent, as approved by its board of directors, to effect the spin-off of INBRX-101, an optimized, recombinant alpha-1 antitrypsin, or AAT, augmentation therapy in a registrational trial for the treatment of patients with alpha-1 antitrypsin deficiency.
−Removed: On May 29, 2024, the Former Parent completed a distribution to holders of its shares of common stock of 92% of the issued and outstanding shares of common stock of the Company, or the Distribution.
+Added: On May 29, 2024, Inhibrx, Inc., or the Former Parent, effected the spin-off of INBRX-101, an optimized, recombinant alpha-1 antitrypsin, or AAT, augmentation therapy in a registrational trial for the treatment of patients with alpha-1 antitrypsin deficiency, upon which, the Former Parent completed a distribution to holders of its shares of common stock of 92% of the issued and outstanding shares of our common stock, or the Distribution.
On May 30, 2024, the Former Parent completed a series of internal restructuring transactions, or the Separation.
1 unchanged sentence
Pursuant to the Merger (i) all assets and liabilities primarily related to INBRX-101, or the 101 Business, were transferred to the Acquirer;
−Removed: and (ii) by way of the Separation, the Company acquired the assets and liabilities and corporate infrastructure associated with its ongoing programs, INBRX-106 and ozekibart (INBRX-109), and its discovery pipeline, as well as the remaining close-out obligations related to its previously terminated program, INBRX-105.
+Added: and (ii) by way of the Separation, we acquired the assets and liabilities and corporate infrastructure associated with its ongoing programs, INBRX-106 and ozekibart (INBRX-109), and its discovery pipeline, as well as the remaining close-out obligations related to its previously terminated program, INBRX-105.
Upon the closing, each Former Parent stockholder received:
(i) $30.00 per share in cash, (ii) one contingent value right per share, representing the right to receive a contingent payment of $5.00 in cash upon the achievement of a regulatory milestone, and (iii) one SEC-registered, publicly listed, share of Inhibrx for every four shares of the Former Parent’s common stock held.
−Removed: From and after the closing, Inhibrx continues to operate as a stand-alone, publicly traded company focused on ozekibart (INBRX-109) and INBRX-106, both of which are clinical-stage programs.
−Removed: For periods prior to the spin-off, descriptions of historical business activities are presented as if the spin-off had already occurred, and the Former Parent’s activities related to such assets and liabilities had been performed by the Company.
+Added: From and after the closing, Inhibrx continues to operate as a stand-alone, publicly traded company focused on ozekibart and INBRX-106, both of which are clinical-stage programs.
+Added: For periods prior to the spin-off, descriptions of historical business activities are presented as if the spin-off had already occurred, and the Former Parent’s activities related to such assets and liabilities had been performed by us.
Refer to Note 1 to our consolidated financial statements included elsewhere in this Annual Report for further discussion of the underlying basis used to prepare the consolidated financial statements.
−Removed: The operating results presented in the Company’s historical financial statements prior to the Merger and in connection with the Separation and the Merger may not be indicative of the results of the Company following the Merger and Separation.
+Added: The operating results presented in our historical financial statements prior to the Merger and in connection with the Separation and the Merger may not be indicative of our results following the Merger and Separation.
Transactions with Related Parties
We entered into a Separation and Distribution Agreement and various agreements relating to transition services, licenses and certain other matters with the Former Parent, which govern our relationship with the Former Parent prior to, at and after the Former Parent completed the Distribution.
−Removed: These agreements include the allocation of
−Removed: employee benefits, taxes and certain other liabilities and obligations attributable to periods prior to, at and after the Distribution.
+Added: These agreements include the allocation of employee benefits, taxes and certain other liabilities and obligations attributable to periods prior to, at and after the
+Added: Distribution.
The terms of these agreements, including amounts billed during the period, are discussed in greater detail in Note 7 to our consolidated financial statements included elsewhere in this Annual Report.
Current Clinical Pipeline
−Removed: Our current clinical pipeline of therapeutic candidates includes ozekibart (INBRX-109) and INBRX-106, both of which utilize our multivalent formats where the precise valency can be optimized in a target-centric way to mediate what we believe to be the most appropriate agonist function:
−Removed: ozekibart (INBRX-109) INBRX-106
−Removed: Tetravalent DR5
−Removed: agonist Hexavalent OX40
+Added: Our current clinical pipeline of therapeutic candidates includes ozekibart and INBRX-106, both of which utilize our multivalent formats where the precise valency can be optimized in a target-centric way to mediate what we believe to be the most appropriate agonist function:
+Added: ozekibart (INBRX-109)
+Added: Tetravalent DR5 agonist
+Added: Hexavalent OX40 agonist
Program Therapeutic Area Target(s)/Format STAGE OF DEVELOPMENT
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__________________
−Removed: * Currently being investigated in chondrosarcoma, Ewing sarcoma, and colorectal cancer.
+Added: * Currently being investigated in chondrosarcoma, Ewing sarcoma, colorectal cancer, and certain other solid tumor types.
** Currently being investigated in patients with non-small cell lung cancer, or NSCLC, and head and neck squamous cell carcinoma, or HNSCC.
ozekibart (INBRX-109)
−Removed: ozekibart (INBRX-109) is a tetravalent death receptor 5, or DR5, agonist currently being evaluated in patients diagnosed with chondrosarcoma, colorectal cancer, and Ewing sarcoma.
−Removed: Chondrosarcoma
−Removed: In June 2021, based on the initial Phase 1 data results, we initiated a registration-enabling Phase 2 trial for the treatment of unresectable or metastatic conventional chondrosarcoma for which the United States Food and Drug Administration, or FDA, and the European Medicines Agency, or EMA, granted orphan drug designation in November 2021 and August 2022, respectively.
−Removed: The primary endpoint for this Phase 2 trial is progression-free survival, or PFS.
−Removed: Data from the registration-enabling Phase 2 trial in unresectable or metastatic conventional chondrosarcoma is expected during the third quarter of 2025.
−Removed: Ewing sarcoma
−Removed: In November 2023, we announced interim efficacy and safety data from the cohort of the Phase 1 trial evaluating ozekibart (INBRX-109) in combination with Irinotecan, or IRI, and Temozolomide, or TMZ, for the treatment of advanced or metastatic, unresectable Ewing sarcoma.
−Removed: Overall, ozekibart (INBRX-109) in combination with IRI/TMZ was well tolerated from a safety perspective.
−Removed: Based on this preliminary data, the ongoing Phase 1/2 trial in the Ewing sarcoma cohort was expanded.
−Removed: Interim data on this cohort are anticipated during the second half of 2025.
+Added: ozekibart is a precisely engineered tetravalent death receptor 5, or DR5, agonist currently being evaluated in patients diagnosed with colorectal cancer, Ewing sarcoma, and chondrosarcoma.
Colorectal adenocarcinoma
−Removed: In January 2025, we announced interim efficacy and safety data from the cohort of the Phase 1 trial evaluating ozekibart (INBRX-109) in combination with FOLFIRI for the treatment of advanced or metastatic, unresectable colorectal adenocarcinoma, or CRC.
+Added: In January 2025, we announced interim efficacy and safety data from the cohort of the Phase 1/2 trial evaluating ozekibart in combination with FOLFIRI for the treatment of advanced or metastatic, unresectable colorectal adenocarcinoma, or CRC.
Efficacy was assessed in 10 of the 13 patients evaluable as of the cutoff date of December 2, 2024, who received at least one dose of ozekibart, based on RECIST v1.1 criteria.
−Removed: We have expanded recruitment of this cohort by 50 patients as a result of these preliminary findings in order to validate these findings in a more uniform patient population.
−Removed: Data on this cohort are anticipated in the third quarter of 2025.
−Removed: INBRX-106 is a precisely engineered hexavalent sdAb-based therapeutic candidate targeting OX40, designed to be an optimized agonist of this co-stimulatory receptor.
−Removed: It is currently being investigated as a single agent and in combination with Keytruda in patients with locally advanced or metastatic solid tumors.
−Removed: Parts 1 and 3, dose escalation as a single agent and in combination with Keytruda, have been completed.
−Removed: We observed durable responses across multiple tumor types.
−Removed: In Part 4 of the Phase 1/2 trial, we continue to enroll patients with NSCLC and HNSCC, both in combination with Keytruda.
−Removed: Primary endpoints for these cohorts are objective response rate, or ORR, disease control rate, or DCR, duration of response, or DOR, and safety.
−Removed: In addition, a new cohort has been initiated in NSCLC to evaluate chemotherapy when used in conjunction with the INBRX-106 and Keytruda combination.
−Removed: The primary endpoint for this cohort is safety.
−Removed: We expect to have a more mature dataset on these cohorts during the fourth quarter of 2025 and plan to provide an update at that time.
−Removed: In June 2024, a seamless Phase 2/3 clinical trial was initiated for INBRX-106 in combination with Keytruda as a first-line treatment for patients with local advanced recurrent or metastatic head HNSCC.
−Removed: This trial recruits patients who have not received prior checkpoint inhibitors and whose tumors express a PDL-1 CPS equal to or greater than 20.
−Removed: We plan to enroll approximately 60 patients in the Phase 2 portion with a primary endpoint of ORR supported by secondary endpoints of DOR, PFS, and safety.
−Removed: We expect to announce initial data on Phase 2 during the fourth quarter of 2025.
−Removed: If positive, we anticipate this data will ungate the Phase 3 portion, where we expect approximately 350 patients will be randomized to INBRX-106 or placebo in combination with Keytruda.
−Removed: The co-primary endpoints for the Phase 3 portion of the study will be PFS and overall survival.
+Added: Based on the interim data observed above, we initiated an expansion cohort enrolling 44 patients, as a fourth line of therapy for approximately 70% of patients and as a third line of therapy for approximately 30% of patients.
+Added: 80% of patients had been previously treated with regimens containing irinotecan.
+Added: Efficacy was assessed in 26 evaluable
+Added: patients who had at least one post-baseline scan as of the cutoff date of October 15, 2025.
+Added: Based on RECIST v1.1 criteria, a 23% overall response rate, or ORR, was observed and an overall disease control rate of 92% was observed.
+Added: We plan to provide an update on the expansion cohort during the second quarter of 2026 when the PFS data is mature.
+Added: If the current response and duration trends observed continue, we plan to meet with the FDA in the second half of 2026 to discuss an accelerated approval pathway for this indication.
+Added: Ewing sarcoma
+Added: In November 2023, we announced interim efficacy and safety data from the cohort of the Phase 1/2 trial evaluating ozekibart in combination with Irinotecan, or IRI, and Temozolomide, or TMZ, for the treatment of advanced or metastatic, unresectable Ewing sarcoma.
+Added: Overall, ozekibart in combination with IRI/TMZ was well tolerated from a safety perspective.
+Added: Based on this preliminary data, the ongoing Phase 1/2 trial in the Ewing sarcoma cohort was expanded to enroll up to an additional 50 patients.
+Added: In March 2026, we provided an update at the European Society for Medical Oncology (ESMO) Sarcoma and Rare Cancers Congress.
+Added: Of the 31 patients evaluable based on a cutoff date of January 15, 2026, we observed a 64.5% ORR and a disease control rate of 87.1%.
+Added: At the time of the presentation, responses were ongoing in eight patients, one of which had been on treatment and progression free for more than two years.
+Added: We expect to complete enrollment in the Phase 1/2 trial of ozekibart in combination with IRI/TMZ for advanced or metastatic, unresectable, relapsed, or refractory Ewing sarcoma in the second half of 2026.
+Added: If the current response and duration trends observed continue, we plan to meet with the FDA in the second half of 2026 to discuss an accelerated approval pathway for this indication.
+Added: Chondrosarcoma
+Added: In June 2021, we initiated a randomized, blinded, placebo-controlled, registrational trial in patients with metastatic, unresectable conventional chondrosarcoma, which enrolled over 200 patients in total at 68 different sites worldwide and for which the United States Food and Drug Administration, or FDA, and the European Medicines Agency, or EMA, granted orphan drug designation for the treatment of chondrosarcoma in November 2021 and August 2022, respectively.
+Added: The primary endpoint for this trial is progression-free survival, or PFS.
+Added: In October 2025, we announced this trial met its primary endpoint of a statistically significant and clinically meaningful median PFS for patients with advanced or metastatic chondrosarcoma treated with ozekibart compared to placebo.
+Added: Ozekibart achieved a 52% reduction in the risk of disease progression or death compared to placebo (stratified Hazard Ratio 0.479;
+Added: P<0.0001), more than doubling median PFS to 5.52 months versus 2.66 months for placebo.
+Added: Importantly, ozekibart is the first investigational therapy to demonstrate a significant PFS benefit in a randomized trial for chondrosarcoma, a disease with no approved systemic options.
+Added: Following recent regulatory interactions, we plan to submit a biologics license application early in the second quarter of 2026.
+Added: INBRX-106 is a hexavalent OX40 agonist currently being investigated as a single agent and in combination with KEYTRUDA ® (pembrolizumab), a PD-1 blocking checkpoint inhibitor, in patients with locally advanced or metastatic solid tumors.
+Added: KEYTRUDA ® is a registered trademark of Merck Sharp & Dohme LLC, a subsidiary of Merck & Co., Inc., Rahway, NJ, USA.
+Added: In November 2025, we completed enrollment of the Phase 1/2 trial evaluating 34 patients in checkpoint inhibitor refractory or relapsed NSCLC, in combination with KEYTRUDA ® .
+Added: Primary endpoints for this cohort are objective response rate, or ORR, disease control rate, or DCR, duration of response, or DOR, and safety.
+Added: In June 2024, a seamless Phase 2/3 clinical trial was initiated for INBRX-106 in combination with KEYTRUDA ® as a first-line treatment for patients with locally advanced recurrent or metastatic HNSCC.
+Added: This trial recruited patients who had not received prior checkpoint inhibitors and whose tumors expressed a PDL-1 combined positive score
+Added: equal to or greater than 20.
+Added: During the first quarter of 2026, we completed enrollment of 68 patients in the Phase 2 portion with a primary endpoint of ORR supported by secondary endpoints of DOR, PFS, and safety.
+Added: We plan to provide initial results from the Phase 2 trial in the second quarter of 2026.
+Added: If positive, we anticipate this data may ungate the Phase 3 portion, where we expect approximately 350 patients will be randomized to INBRX-106 or placebo in combination with KEYTRUDA ® .
+Added: The co-primary endpoints for the Phase 3 portion of the study are expected to be PFS and overall survival.
Components of Results of Operations
5 unchanged sentences
Research and development expenses are recognized as incurred and payments made prior to the receipt of goods or services to be used in research and development are capitalized until the goods or services are received.
−Removed: In accordance with the applicable accounting and regulatory requirements, we track all research and development expenses in the aggregate and do not manage or track either external or internal expenses on a program-by-program
+Added: In accordance with the applicable accounting and regulatory requirements, we track all research and development expenses in the aggregate and do not manage or track either external or internal expenses on a program-by-program basis.
External research and development expenses are instead managed and tracked by the nature of the activity, and primarily consist of contract manufacturing and clinical trial expenses.
47 unchanged sentences
• expenses incurred in connection with accounting, audit, and tax services, legal services, including costs associated with obtaining and maintaining our patent portfolio, investor relations and consulting expenses under agreements with third parties, such as consultants and contractors;
−Removed: • expenses incurred in connection with commercialization and business development activity;
+Added: • expenses incurred in connection with pre-commercialization and business development activity;
• facilities, depreciation and other expenses, which include direct and allocated expenses for depreciation and amortization, rent and maintenance of facilities, insurance and supplies.
−Removed: During the year ended December 31, 2024, we incurred increased G&A expenses in connection to the Merger, including stock compensation expense upon acceleration of options, and other transaction costs, including legal, advisory, and consulting services.
+Added: During the year ended December 31, 2024, we incurred increased G&A expenses in connection with the Merger, including stock compensation expense upon acceleration of options, and other transaction costs, including legal, advisory, and consulting services.
We do not expect these expenses to recur in future years.
10 unchanged sentences
Interest income consists of interest earned on cash and cash equivalents, which include sweep and money market account balances as well as investments held in highly liquid debt securities with original maturities of less than three months from our date of acquisition.
−Removed: Loss on Equity Method Investment
−Removed: Our equity interest in Phylaxis BioScience, LLC, or Phylaxis, is accounted for as an equity method investment and the Company’s proportionate share of the net income or loss of Phylaxis is included as loss in equity method investment in the consolidated statement of operations.
Results of Operations
18 unchanged sentences
Provision for income taxes 2 2 — — %
−Removed: Loss on equity method investment — 1,634 (1,634) (100) %
Net income (loss)
1 unchanged sentence
License Fee Revenue
+Added: License fee revenue during the year ended December 31, 2025 was $1.3 million and consisted of revenue related to Scithera License Agreement which we recognized following the completion of the transfer of all licenses, related materials, and know-how.
License fee revenue during the year ended December 31, 2024 was $0.2 million and consisted of revenue related to our license agreement with Regeneron Pharmaceuticals, Inc., which we recognized following the grant of two six-month extensions of the option term during the year, each for revenue of $0.1 million.
−Removed: License fee revenue during the year ended December 31, 2023 was $1.8 million and consisted of $1.6 million of revenue related to our agreements with Phylaxis and $0.2 million of revenue related to a former option agreement which was completed during 2023.
−Removed: The revenue under our Phylaxis arrangement was earned following the transfer of a second-generation compound to Phylaxis during the year ended December 31, 2023, upon which we received an additional 5% equity interest in Phylaxis, which we recognized as revenue at its fair value of $1.6 million.
See Note 6 to our consolidated financial statements included elsewhere in this Annual Report for additional information on our license and collaboration agreements.
4 unchanged sentences
External expenses:
−Removed: Contract manufacturing $ 55,643 $ 77,248 $ (21,605) (28) %
Clinical trials $ 35,339 $ 47,665 $ (12,326) (26) %
+Added: Contract manufacturing 19,590 55,643 (36,053) (65) %
Other external research and development 9,537 11,691 (2,154) (18) %
4 unchanged sentences
Total research and development expenses $ 113,028 $ 203,743 $ (90,715) (45) %
−Removed: Research and development expense increased by $12.1 million from $191.6 million during the year ended December 31, 2023 to $203.7 million during the year ended December 31, 2024.
−Removed: The overall increase was primarily due to the following factors:
−Removed: • contract manufacturing expense decreased by $21.6 million due to the nature of the development and manufacturing activities performed during each period at our CDMO and CRO partners supporting our clinical and preclinical therapeutic candidates, primarily due to the divestiture of INBRX-101, for which we incurred significant expenses during the year ended December 31, 2023 related to large scale drug substance manufacturing services performed by one of our CDMO partners including the utilization of raw materials;
−Removed: • clinical trial expense increased by $4.7 million primarily due to the expansion of our ongoing registration-enabling Phase 2 trial for ozekibart (INBRX-109) for the treatment of unresectable or metastatic conventional chondrosarcoma and due to the expansion of our INBRX-106 Phase 1/2 trial and initiation of the Phase 2/3 trial for HNSCC, including expenses for in-house clinical trial support, as well as costs incurred for our registration-enabling Phase 2 trial for INBRX-101 for the treatment of emphysema due to AATD, prior to our spin-off of the INBRX-101 program during the period.
−Removed: These expenses were offset in part by reduced clinical expenses following the termination of our INBRX-105 program;
−Removed: • personnel-related expense increased by $25.0 million, which was primarily related to $25.9 million in stock option expense recognized upon the acceleration of outstanding options in connection with the closing of the Merger;
−Removed: • facility and equipment-related expense increased by $2.3 million, which was attributable to expenses related to capitalized software placed in service during the period;
−Removed: • other research and development expense increased by $1.7 million, which was primarily attributable to an increase in clinical-related consulting expenses and the purchase of lab supplies, offset in part by decreases in costs associated with preclinical studies.
−Removed: G&A expense increased by $98.5 million from $29.4 million during the year ended December 31, 2023 to $127.9 million during the year ended December 31, 2024.
−Removed: The overall increase was primarily due to the following factors:
−Removed: • one-time expenses incurred related to the Merger of $68.1 million, consisting of legal, advisory, and consulting services performed in connection to the transaction, and SEC filing fees in connection with filings related to the transaction;
−Removed: • personnel-related expenses increased by $19.9 million, which was primarily related to $15.2 million in stock option expense recognized upon the acceleration of outstanding options in connection with the close of the Merger, in addition to other bonuses paid in connection with the Merger;
−Removed: • professional fees for legal services increased by $8.2 million, which was primarily attributable to costs incurred in connection with legal proceedings, which have since concluded, finding us not liable for damages, and other intellectual property matters;
−Removed: • pre-commercialization expenses increased by $1.7 million, primarily related to increases in consulting services and scientific publications to support our commercial operations business intelligence strategies related to ozekibart (INBRX-109) and prior to the Merger, related to INBRX-101, in addition to a focus on patient advocacy and recruitment efforts, offset in part by a decrease in market research efforts following the disposition of INBRX-101;
−Removed: • facility and equipment-related expense increased by $0.6 million, which was primarily attributable to an increase in software subscriptions and tenant improvements during the current year.
+Added: Research and development expense decreased by $90.7 million from $203.7 million during the year ended December 31, 2024 to $113.0 million during the year ended December 31, 2025.
+Added: The overall decrease was primarily due to the following factors:
+Added: • clinical trial expense decreased by $12.3 million primarily due to decreased expenses following the spin-off of our INBRX-101 program, which occurred during the second quarter of 2024, and the termination of our INBRX-105 program during 2024, in addition to decreases in expenses in our ozekibart (INBRX-109) registration-enabling trial for the treatment of unresectable or metastatic conventional chondrosarcoma as the trial approached completion of enrollment ahead of our data readout.
+Added: These decreases in expenses were offset in part by increases in our ongoing trials for INBRX-106, in which we opened additional sites and increased enrollment during the period;
+Added: • contract manufacturing expense decreased by $36.1 million compared to the prior year, primarily attributable to increased expense in the prior year associated with the purchase of raw materials for our drug substance manufacturing and process development and manufacturing activities with one of our CDMO partners for our ozekibart program, as well as decreased expenses following the spin-off of our INBRX-101 program, which occurred during the second quarter of 2024;
+Added: • personnel-related expense decreased by $37.4 million, which was primarily related to $25.9 million in stock option expense recognized during 2024 upon the acceleration of outstanding options in connection with the close of the Merger, in addition to a decrease in headcount during the current period;
+Added: • facility and equipment-related expense increased by $0.5 million, which was primarily related to our operating lease expense;
+Added: • other research and development expense decreased by $5.5 million, which was primarily attributable to a decrease in certain non-recurring sponsored research and preclinical activities, as well as a decrease in purchases of lab supplies and travel expenses following the decrease in headcount during the current period.
+Added: G&A expense decreased by $104.6 million from $127.9 million during the year ended December 31, 2024 to $23.3 million during the year ended December 31, 2025.
+Added: The overall decrease was primarily due to the following factors:
+Added: • one-time expenses incurred in the prior year related to the Merger of $68.1 million, consisting of legal, advisory, and consulting services performed in connection to the transaction, and SEC filing fees in connection with filings related to the transaction;
+Added: • personnel-related expenses decreased by $23.2 million, which was primarily related to $15.2 million in stock option expense recognized during 2024 upon the acceleration of outstanding options in connection with the close of the Merger, in addition to a decrease in headcount during the current period;
+Added: • professional services-related expenses related to legal services, decreased by $9.6 million, primarily attributable to the conclusion of legal proceedings and other intellectual property matters.
Other Income (Expense)
1 unchanged sentence
During the year ended December 31, 2024, we earned $2.0 billion of other income, consisting of gains recorded in connection with the completion of the Merger.
−Removed: We recorded a gain of $1.7 billion related to Merger consideration for our outstanding common stock, warrants, and stock options, in addition to $211.3 million related to the extinguishment of our loan under an amended loan agreement with Oxford, or the Amended 2020 Loan Agreement, which loan was assumed by the Acquirer.
+Added: We recorded a gain of $1.7 billion related to Merger consideration for our outstanding common stock, warrants, and stock options, in addition to $211.3 million related to the extinguishment of our loan under an amended loan agreement with Oxford, or the Amended 2020 Loan Agreement, which was assumed by the Acquirer.
In addition to the Acquirer assuming our outstanding debt, the Acquirer assumed outstanding assets and liabilities related to INBRX-101 upon the transaction, resulting in a gain of $14.5 million.
The Acquirer also reimbursed us for or paid on our behalf $68.0 million of transaction costs related to the Merger, resulting in a gain.
−Removed: We do not expect future income or gains in connection with the Merger in future periods.
+Added: We did not earn income or gains in connection with the Merger during the year ended December 31, 2025 and do not expect to in future periods.
Interest expense.
−Removed: Interest expense decreased by $18.3 million from $31.8 million during the year ended December 31, 2023 to $13.5 million during the year ended December 31, 2024, all of which relates to interest incurred and the amortization of debt discounts related to the Amended 2020 Loan Agreement.
−Removed: The decrease in interest expense is the result of the extinguishment of the Amended 2020 Loan Agreement in connection with the Merger.
−Removed: We did not incur any interest following the close of the Merger on May 30, 2024, the date upon which the Acquirer assumed our outstanding debt.
+Added: Interest expense was $12.2 million during the year ended December 31, 2025, all of which related to interest incurred and the amortization of debt discounts related to the 2025 Loan Agreement, under which we had $100.0 million in outstanding principal during the period.
+Added: Interest expense was $13.5 million during the year ended December 31, 2024, all of which related to interest incurred and the amortization of debt discounts related to the Amended 2020 Loan Agreement, under which we had $200.0 million in outstanding principal during the period prior to its extinguishment upon the Merger.
Interest income.
−Removed: During the year ended December 31, 2024, we earned $10.9 million of interest income on our sweep and money market account balances.
−Removed: During the year ended December 31, 2023, we earned $11.9 million of interest income, of which $7.5 million related to interest earned on our sweep and money market account balances and $4.4 million related to the accretion of discount on investments in debt securities during the period.
−Removed: Income tax expense was approximately $2,000 and $3,000 during the years ended December 31, 2024 and December 31, 2023, respectively.
+Added: During the years ended December 31, 2025 and December 31, 2024, we earned $7.5 million and $10.9 million, respectively, of interest income related to interest earned on our sweep and money market account balances.
+Added: Income tax expense was approximately $2,000 during each of the years ended December 31, 2025 and December 31, 2024, respectively.
For the years ended December 31, 2025 and December 31, 2024, we have applied a 100% valuation allowance against our federal deferred tax assets since it is more likely than not that the deferred tax assets will not be realized.
−Removed: Loss on Equity Method Investment
−Removed: During the year ended December 31, 2023, we received an additional 5% equity interest in Phylaxis following the achievement of a milestone under our agreements.
−Removed: Upon receipt of the equity interest, we established an equity method investment at its fair value of $1.6 million.
−Removed: The loss on equity method investment during the year ended December 31, 2023 of $1.6 million consists of our share of losses from our investment in Phylaxis, which reduced our equity investment to zero.
−Removed: During the year ended December 31, 2024, we did not record any gain or loss on our equity method investment.
Liquidity and Capital Resources
Sources of Liquidity
−Removed: As of the date of this Annual Report, sources of capital raised to fund our operations have been comprised of the sale of equity securities, borrowings under loan and security agreements, payments received from commercial partners
−Removed: for licensing rights to our therapeutic candidates under development, grants, and proceeds from the sale and issuance of convertible promissory notes.
+Added: As of the date of this Annual Report, sources of capital raised to fund our operations have been comprised of the sale of equity securities, borrowings under loan and security agreements, payments received from commercial partners for licensing rights to our therapeutic candidates under development, grants, and proceeds from the sale and issuance of convertible promissory notes.
In January 2025, we entered into the 2025 Loan Agreement with Oxford, upon which we received gross proceeds of $100 million.
−Removed: The 2025 Loan Agreement provides for up to an additional $50.0 million to be funded upon our request and at Oxford’s sole discretion.
+Added: On March 18, 2026, we entered into the First Amendment to Loan and Service Agreement with Oxford, or the March 2026 Amendment.
+Added: The March 2026 Amendment provides for an additional tranche, or the Term B Loans, in an aggregate principal amount of $75.0 million, upsized from $50.0 million originally available
+Added: under the 2025 Loan Agreement prior to the March 2026 Amendment, $75.0 million of which was funded on the date of the March 2026 Amendment.
Future Funding Requirements
2 unchanged sentences
Our net income or losses may fluctuate significantly from quarter-to-quarter and year-to-year, depending on the timing of our clinical trials and our expenditures on other research and development activities, as well as the timing of other corporate transactions.
−Removed: During the year ended December 31, 2024, we had net income of $1.7 billion following the closing of the Merger, and during the year ended December 31, 2023, our net loss was $241.4 million.
+Added: During the year ended December 31, 2025, our net loss was $140.1 million.
As of December 31, 2025, we had an accumulated deficit of $246.2 million and cash and cash equivalents of $124.2 million.
8 unchanged sentences
Additionally, if approved, we will incur significant commercialization expenses related to product sales, marketing, manufacturing, and distribution.
−Removed: We also expect additional general and administrative expenses as we hire additional personnel and incur increased accounting, audit, legal, regulatory and compliance, investor and public relations expense to support our continued expansion.
Until such time we, if ever, can generate substantial product revenue, we expect to finance our cash needs through equity offerings, debt financings or other capital sources, including strategic licensing and collaborations, strategic transactions, or other similar arrangements and transactions, and from time to time, we engage in discussions with potential acquirers regarding the disposition of one or more of our therapeutic candidates.
If the Company does raise additional capital through public or private equity or convertible debt offerings, the ownership interests of its existing stockholders will be diluted, and the terms of those securities may include liquidation or other preferences that adversely affect its stockholders’ rights.
−Removed: If the Company raises capital through additional debt financings, such as our 2025 Loan Agreement with Oxford, it may be subject to covenants limiting or restricting its ability to take specific actions, such as incurring additional debt or making certain capital expenditures.
+Added: If the Company raises capital through additional debt financings, it may be subject to covenants limiting or restricting its ability to take specific actions, such as incurring additional debt or making certain capital expenditures.
To the extent that the Company raises additional capital through strategic licensing, collaboration or other similar agreements, it may have to relinquish valuable rights to its therapeutic candidates, future revenue streams or research programs at an earlier stage of development or on less favorable terms than it would otherwise choose, or to grant licenses on terms that may not be favorable to the Company.
However, there can be no assurance as to the availability or terms upon which such finances or capital might be available in the future.
−Removed: If we are unable to secure adequate additional funding, we will need to reevaluate our operating plan and may be forced to make reductions in spending, extend payment terms
−Removed: with suppliers, liquidate assets where possible, delay, scale back or eliminate some or all of our development programs, or relinquish rights to our intellectual property on less favorable terms than we would otherwise choose.
+Added: If we are unable to secure adequate additional funding, we will need to reevaluate our operating plan and may be forced to make reductions in spending, extend payment terms with suppliers, liquidate assets where possible, delay, scale back or eliminate some or all of our development programs, or relinquish rights to our intellectual property on less favorable terms than we would otherwise choose.
These actions could materially impact our business, results of operations, financial condition, and prospects.
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We have recorded accrued expenses of approximately $16.4 million in our consolidated balance sheets for expenditures incurred for R&D services performed at CROs, CDMOs, and other third-party organizations as of December 31, 2025.
+Added: While these contracts are generally cancellable, some may contain specific activities that involve one or more noncancellable commitments.
+Added: Depending on the timing and reasoning of the exit, certain termination penalties may apply and can range from the cost of work performed to date up to twelve months of future committed manufacturing costs.
+Added: As of December 31, 2025, the noncancellable portion of these contracts totaled in aggregate, excluding amounts recorded in accounts payable and accrued expenses as of this date, approximately $15.9 million.
+Added: The noncancellable purchase commitments relate to future contract manufacturing of drug supply for one of our therapeutic candidates.
Cash Flow Summary
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Net cash provided by financing activities 101,446 71,678
−Removed: Net increase (decrease) in cash $ (125,328) $ 4,059
+Added: Net decrease in cash $ (28,376) $ (125,328)
Operating Activities
−Removed: Net cash used in operating activities was $194.4 million during the year ended December 31, 2024 and consisted primarily of net income of $1.7 billion, adjusted for non-cash items.
+Added: Net cash used in operating activities was $129.8 million during the year ended December 31, 2025 and consisted primarily of a net loss of $140.1 million, adjusted for non-cash items, including accretion on our debt discount and the non-cash portion of interest expense related to our debt of $2.4 million, stock-based compensation expense of $11.1 million, depreciation and amortization of $2.5 million, and non-cash lease expense of $1.8 million.
+Added: Changes in operating assets and liabilities also contributed to the cash used in operating activities, including a decrease in operating lease liability of $1.6 million as a result of lease payments made throughout the period and decreases in accounts payable of $3.3 million and accrued expenses of $4.4 million due to the timing of payments to our CRO and CDMO partners during the period.
+Added: These uses of cash were offset in part by a decrease in prepaid expenses and other current assets of $1.4 million as a result of the timing of payments to our CRO and CDMO partners during the period, as well as a decrease in accounts receivable and other receivables of $0.2 million.
+Added: Net cash used in operating activities was $194.4 million during the year ended December 31, 2024 and consisted primarily of a net income of $1.7 billion, adjusted for non-cash items.
Non-cash adjustments primarily related to gains recorded upon the Merger of $2.0 billion.
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These uses of cash were offset by increases in accrued expenses and other current liabilities of $35.9 million, an increase in accounts payable of $17.9 million, and a decrease in prepaid expenses of $3.0 million due to the timing of payments to our CRO and CDMO partners during the period, each of which excludes the liabilities related to INBRX-101 which were assumed by the Acquirer in the Merger.
−Removed: Net cash used in operating activities was $193.3 million during the year ended December 31, 2023 and consisted primarily of a net loss of $241.4 million, adjusted for non-cash items including stock-based compensation expense of $24.8 million, accretion on our debt discount and the non-cash portion of interest expense related to our debt of $4.9 million, depreciation and amortization of $1.2 million, and non-cash lease expense of $1.8 million.
−Removed: Non-cash revenue of $1.6 million earned in relation to the equity interest in Phylaxis received during the period was offset by the loss on equity method investment of $1.6 million reflecting our share of losses in Phylaxis.
−Removed: Changes in operating assets and liabilities also contributed to the cash used in operating activities, including an increase in prepaid expenses of $10.3 million, primarily due to the prepayment for clinical drug substance manufacturing services at our CDMOs during the year.
−Removed: Additionally, the operating lease liability decreased by $1.9 million as a result of lease payments made throughout the year.
−Removed: Receivables increased by $0.5 million, primarily as a result of dividends earned and not received as of December 31, 2023.
−Removed: Deferred revenue decreased by $0.2 million following the recognition of $0.2 million of previously deferred revenue related to our former option agreement.
−Removed: These uses of cash were offset by an increase in accrued expenses of $26.1 million and an increase in accounts payable of $2.1 million, primarily due to the timing of clinical drug substance manufacturing services incurred at our CDMOs and clinical activities incurred at our CROs, in addition to increases in compensation-related accruals as related to employee bonuses.
Investing Activities
−Removed: Net cash used in investing activities was $2.6 million and $4.6 million during the years ended December 31, 2024 and December 31, 2023, respectively, and was related to capital purchases of software, leasehold improvements, and laboratory and office equipment.
+Added: Net cash used in investing activities was $28,000 and $2.6 million during the years ended December 31, 2025 and December 31, 2024, respectively, and was related to capital purchases of software, leasehold improvements, and laboratory and office equipment.
Financing Activities
−Removed: Net cash provided by financing activities was $71.7 million during the year ended December 31, 2024 and consisted of proceeds of $71.7 million received from the exercise of stock options.
−Removed: Net cash provided by financing activities was $202.0 million during the year ended December 31, 2023 and consisted primarily of proceeds of $200.0 million from the issuance of common stock and pre-funded warrants in a
−Removed: private placement transaction, offset in part by issuance costs of $0.4 million.
−Removed: In addition, we received proceeds of $2.3 million from the exercise of stock options.
+Added: Net cash provided by financing activities was $101.4 million during the year ended December 31, 2025, which consisted primarily of net proceeds of $99.8 million from the 2025 Loan Agreement which we entered into in January 2025, in addition to $1.6 million from the proceeds from the exercise of stock options.
+Added: Net cash provided by financing activities was $71.7 million during the year ended December 31, 2024, which consisted of proceeds from the exercise of stock options.
Critical Accounting Estimates
−Removed: Our consolidated financial statements and accompanying notes are prepared in accordance with United States generally accepted accounting principles, or GAAP, which requires management to make estimates and assumptions that affect the amounts reported.
+Added: Our consolidated financial statements and accompanying notes are prepared in accordance with United States generally accepted accounting principles, or GAAP, which requires management to make estimates and assumptions
+Added: that affect the amounts reported.
Management bases its estimates on historical experience, market and other conditions, and various other assumptions it believes to be reasonable.
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Additionally, we are a “smaller reporting company,” as defined in Rule 12b-2 under the Exchange Act.
−Removed: As such, we are eligible for exemptions from various reporting requirements applicable to other public companies that are not
−Removed: smaller reporting companies, including, but not limited to, reduced disclosure obligations regarding executive compensation.
+Added: As such, we are eligible for exemptions from various reporting requirements applicable to other public companies that are not smaller reporting companies, including, but not limited to, reduced disclosure obligations regarding executive compensation.
We will remain a smaller reporting company as long as either:
(i) the market value of the shares of our common stock held by non-affiliates is less than $250.0 million as of the last business day of our most recently completed second fiscal quarter;
−Removed: or (ii) our annual revenue is less than $100.0 million during the most recently completed fiscal year and the market value of the shares of our common stock held by non-affiliates is less than $700.0 million as of the last business day of our most recently completed second fiscal quarter.
+Added: or (ii) our annual revenue is less than $100.0 million during the most recently completed fiscal
+Added: year and the market value of the shares of our common stock held by non-affiliates is less than $700.0 million as of the last business day of our most recently completed second fiscal quarter.
Recent Accounting Pronouncements
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Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.