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Inhibrx Biosciences (NASDAQ: INBX) details 2025 loss and 2026 trial plans

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Form Type
8-K

Rhea-AI Filing Summary

Inhibrx Biosciences, Inc. reported fourth quarter and full-year 2025 results and outlined key 2026 clinical milestones. The company is now focused on two clinical programs, ozekibart (INBRX-109) and INBRX-106, following the prior sale of INBRX-101 and spin-off from its former parent.

For 2025, Inhibrx recorded a net loss of $140.1 million, or $9.04 per share, compared with net income of $1.7 billion in 2024, which had included a large one-time gain from the 101 Transaction. Research and development expenses fell to $113.0 million from $203.7 million, while general and administrative expenses declined to $23.3 million from $127.9 million as transaction- and litigation-related costs rolled off.

As of December 31, 2025, cash and cash equivalents were $124.2 million. On March 18, 2026, the company amended its loan agreement with Oxford Finance and received gross proceeds of $75.0 million. Inhibrx expects to submit a BLA for ozekibart in early Q2 2026 and to report multiple ozekibart and INBRX-106 data readouts through 2026.

Positive

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Insights

Inhibrx cut operating costs in 2025 while advancing two late-stage oncology programs.

Inhibrx Biosciences is now centered on ozekibart and INBRX-106 after the prior 101 Transaction. R&D spending dropped to $113.0 million in 2025 from $203.7 million, and G&A fell to $23.3 million from $127.9 million as one-time deal and legal costs rolled off.

The business remains loss-making, with a 2025 net loss of $140.1 million versus 2024’s gain-driven net income of $1.7 billion. Year-end cash of $124.2 million, supplemented by $75.0 million in new loan proceeds in March 2026, supports near-term operations but adds interest expense to an existing $100.0 million debt balance.

Near-term value drivers are clinical. The company plans an early Q2 2026 BLA submission for ozekibart in unresectable or metastatic conventional chondrosarcoma, plus multiple 2026 readouts in colorectal cancer and HNSCC. Actual impact will depend on regulatory feedback and the strength of forthcoming efficacy and safety data.

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): March 19, 2026
INHIBRX BIOSCIENCES, INC.
(Exact name of registrant as specified in its charter)  
Delaware
001-42031
99-0613523
(State or other jurisdiction
of incorporation)
(Commission
File Number)
(IRS Employer
Identification No.)
11025 N. Torrey Pines Road, Suite 140
La Jolla, CA 92037
(Address of Principal Executive Offices and Zip Code)
Registrant’s telephone number, including area code: (858) 795-4220
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common Stock, par value $0.0001 per shareINBXThe Nasdaq Global Market
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company  
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  




Item 2.02    Results of Operations and Financial Condition
On March 19, 2026, Inhibrx Biosciences, Inc. (the “Company”) issued a press release announcing its financial results for the year ended December 31, 2025. A copy of the press release is furnished as Exhibit 99.1 to this report.
The information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is intended to be furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01.    Financial Statements and Exhibits.
(d) Exhibits.
Exhibit No.Description
99.1
Press Release issued by Inhibrx Biosciences, Inc. on March 19, 2026
104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: March 19, 2026
INHIBRX BIOSCIENCES, INC.
By:/s/ Kelly Deck
Name:Kelly Deck
Title:Chief Financial Officer


Exhibit 99.1
Inhibrx Reports Fourth Quarter and Fiscal Year 2025 Financial Results

San Diego, CA, March 19, 2026 – Inhibrx Biosciences, Inc. (Nasdaq: INBX) (“Inhibrx” or the “Company”) today reported financial results for the fourth quarter and fiscal year 2025. Following the completion of the sale of INBRX-101 (the "101 Transaction") by Inhibrx, Inc. (the “Former Parent”) to Sanofi S.A. (the “Acquirer”) and the Former Parent’s concurrent spin-off of the Inhibrx business in May 2024, the biopharmaceutical company now has two programs in ongoing clinical trials.

Upcoming Milestones
ozekibart (INBRX-109)
We expect to submit the Biologics License Application (“BLA”) for ozekibart for the treatment of unresectable or metastatic conventional chondrosarcoma to the U.S. Food and Drug Administration (“FDA”) early in the second quarter of 2026;
We plan to announce progression-free survival (“PFS”) data for the Phase 1/2 colorectal cancer expansion cohort in the second quarter of 2026; and
We plan to meet with the FDA to discuss accelerated approval for Ewing Sarcoma and fourth line colorectal cancer in the second half of 2026.
INBRX-106
We plan to announce interim objective response rate (“ORR”) data from the randomized Phase 2/3 trial in head and neck squamous cell carcinoma (“HNSCC”) in combination with KEYTRUDA® (pembrolizumab) in the second quarter of 2026; and
We plan to announce PFS data from the randomized Phase 2/3 trial in HNSCC in combination with pembrolizumab in the fourth quarter of 2026 at the European Society for Medical Oncology (“ESMO”) 2026 Congress.

Financial Results
Cash and Cash Equivalents. As of December 31, 2025, Inhibrx had cash and cash equivalents of $124.2 million. On March 18, 2026, the Company entered into the First Amendment to the Loan and Security Agreement with Oxford Finance, LLC and received gross proceeds of $75.0 million.
R&D Expense
Research and development expenses were $25.3 million during the fourth quarter of 2025 as compared to $33.4 million during the fourth quarter of 2024. This decrease during the fourth quarter of 2025 was primarily due to a decrease in expense related to lower clinical trial costs in our ozekibart registration-enabling trial for the treatment of unresectable or metastatic conventional chondrosarcoma as the trial approached completion of enrollment ahead of our data readout in October 2025, as well as a decrease in contract manufacturing expenses;



Research and development expenses were $113.0 million during the fiscal year 2025 as compared to $203.7 million during the fiscal year 2024. This decrease during the fiscal year 2025 was primarily due to the following factors:
a decrease in clinical trial expense primarily related to lower clinical trial costs in our ozekibart registration-enabling trial for the treatment of unresectable or metastatic conventional chondrosarcoma as discussed above;
a decrease in contract manufacturing expense primarily attributable to decreased expenses incurred at our contract development and manufacturing organizations for our ozekibart program and INBRX-106 program, as well as decreased expenses following the 101 Transaction; and
increased personnel-related expense during the fiscal year 2024 related to the recognition of $25.9 million upon the acceleration of outstanding options in connection with the closing of the 101 Transaction.
G&A Expense
General and administrative expenses were $5.6 million during the fourth quarter of 2025, compared to $16.7 million during the fourth quarter of 2024. This decrease during the fourth quarter of 2025 was primarily due to an increase in legal services incurred in the prior period in connection with legal proceedings, which have since concluded, finding the Company not liable for damages.
General and administrative expenses were $23.3 million during the fiscal year 2025, compared to $127.9 million during the fiscal year 2024. This decrease during the fiscal year 2025 was primarily due to the following factors:
one-time expenses incurred during the fiscal year 2024 related to the 101 Transaction, including $68.1 million of legal, advisory, and consulting services, and the recognition of $15.2 million in stock option expense upon the acceleration of outstanding options in connection with the closing of the 101 Transaction; and
increased expense during the fiscal year 2024 related to legal services incurred in connection with the Company’s legal proceedings as discussed above.
Other Income (Expense)
Other expense was $1.9 million during the fourth quarter of 2025, compared to other income of $2.1 million during the fourth quarter of 2024. Other expense in the current period consisted of $3.2 million of interest expense on the Company’s $100.0 million outstanding debt balance, offset in part by other income. Other income during each period consisted of interest income earned on the Company’s sweep and money market account balances. During the fourth quarter of 2024, the Company did not incur any interest expense following the extinguishment of all outstanding debt in connection with the 101 Transaction.
Other expense was $5.0 million during the fiscal year 2025, compared to other income of $2.0 billion during the fiscal year 2024. Other expense in the current period consisted of $12.2 million of interest expense on the Company’s $100.0 million outstanding debt balance, offset in part by other income. Other income during each period consisted of interest earned on the Company’s sweep and money market account balances. During the fiscal year ended 2024, as noted above, other income also included the gain recorded in



connection with the completion of the 101 Transaction. This gain consisted of (i) the consideration paid by the Acquirer for all outstanding common stock, warrants, and stock options, (ii) the extinguishment of the Company’s outstanding debt which was assumed by the Acquirer, (iii) assets and liabilities related to the Inhibrx 101 Business, which were assumed by the Acquirer, and (iv) transaction costs paid for by the Acquirer.
Net Income (Loss)
Net loss was $32.8 million during the fourth quarter of 2025, or $2.11 per share, basic and diluted, compared to a net loss of $47.9 million during the fourth quarter of 2024, or $3.09 per share, basic and diluted.
Net loss was $140.1 million during the fiscal year 2025, or $9.04 per share, basic and diluted, compared to a net income of $1.7 billion during the fiscal year 2024, or earnings per share $114.01 basic and $112.62 diluted.
About Inhibrx Biosciences, Inc.
Inhibrx is a clinical-stage biopharmaceutical company with a pipeline of novel biologic therapeutic candidates. Inhibrx utilizes diverse methods of protein engineering to address the specific requirements of complex target and disease biology, including its proprietary protein engineering platforms. Inhibrx was incorporated in January 2024 as a direct, wholly-owned subsidiary of Inhibrx, Inc. Prior to the sale of Inhibrx, Inc. and the INBRX-101 program to Sanofi S.A., Inhibrx acquired certain corporate infrastructure and other assets and liabilities through a series of internal restructuring transactions effected by Inhibrx, Inc. Inhibrx, Inc. also completed a distribution to holders of its shares of common stock of 92% of the issued and outstanding shares of Inhibrx. Following such transactions, Inhibrx’s current clinical pipeline of therapeutic candidates includes ozekibart and INBRX-106, both of which utilize multivalent formats where the precise valency can be optimized in a target-centric way to mediate what Inhibrx believes to be the most appropriate agonist function. For more information, please visit www.inhibrx.com.
Forward Looking Statements
Inhibrx cautions you that statements contained in this press release regarding matters that are not historical facts are forward-looking statements. These statements are based on Inhibrx’s current beliefs and expectations. These forward-looking statements include, but are not limited to, statements regarding statements regarding the safety and efficacy of its therapeutic candidate, ozekibart, based on topline and interim results; the potential for ozekibart to be used for the treatment of chondrosarcoma, colorectal cancer and Ewing sarcoma; any presumption that topline, interim or preliminary data will be representative of final data or data in later clinical trials; and Inhibrx’s plans to submit to the FDA a BLA early in the second quarter of 2026, to announce data regarding its ozekibart Phase 1/2 colorectal cancer expansion cohort and meet with the FDA to discuss accelerated approval for Ewing sarcoma and fourth-line colorectal cancer in the second quarter of 2026, to announce ORR data regarding its INBRX-106 Phase 2/3 trial in HNSCC in combination with pembrolizumab in the second quarter of 2026 and to announce data regarding its INBRX-106 Phase 2/3 trial in HNSCC in combination with pembrolizumab at the ESMO 2026 Congress. Actual results may differ from those set forth in this press release due to the risks and uncertainties inherent in Inhibrx’s business, including, without limitation, risks and uncertainties regarding: topline data may not accurately reflect the



complete results of a particular study or trial and remain subject to audit, and final data may differ materially from topline data; the initiation, timing, progress and results of its preclinical studies and clinical trials, and its research and development programs; its ability to advance therapeutic candidates into, and successfully complete, clinical trials; its interpretation of topline, interim or preliminary data from its clinical trials, including interpretations regarding disease control and disease response; the Company’s ability to utilize the Company’s technology platform to generate and advance additional therapeutic candidates; the implementation of the Company’s business model and strategic plans for the Company’s business and therapeutic candidates; the scope of protection the Company is able to establish and maintain for intellectual property rights covering the Company’s therapeutic candidates; the ability to raise funds needed to satisfy the Company’s capital requirements, which may depend on financial, economic and market conditions and other factors, over which the Company may have no or limited control; the Company’s financial performance; developments relating to the Company’s competitors and the Company’s industry; regulatory review and approval of the Company’s therapeutic candidates; and other risks described from time to time in the “Risk Factors” section of its filings with the U.S. Securities and Exchange Commission, including those described in its Annual Report on Form 10-K, its Quarterly Reports on Form 10-Q, and supplemented from time to time by its Current Reports on Form 8-K as filed from time to time. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof, and Inhibrx undertakes no obligation to update these statements to reflect events that occur or circumstances that exist after the date hereof. All forward-looking statements are qualified in their entirety by this cautionary statement, which is made under the safe harbor provisions of the Private Securities Litigation Reform Act of 1995.

Investor and Media Contact:
Kelly D. Deck
Chief Financial Officer
ir@inhibrx.com
858-795-4260




Inhibrx Biosciences, Inc.
Condensed Consolidated Statements of Operations
(In thousands, except per share data)

THREE MONTHS ENDED DECEMBER 31,YEAR ENDED
DECEMBER 31,
2025202420252024
(unaudited)
Revenue:
License fee revenue$— $100 $1,300 $200 
Total revenue— 100 1,300 200 
Operating expenses:
Research and development25,349 33,367 113,028 203,743 
General and administrative5,574 16,661 23,297 127,905 
Total operating expenses30,923 50,028 136,325 331,648 
Loss from operations(30,923)(49,928)(135,025)(331,448)
Total other income (expense)(1,911)2,063 (5,028)2,019,022 
Provision for income taxes— — 
Net income (loss)$(32,834)$(47,865)$(140,055)$1,687,572 
Earnings (loss) per share
Basic$(2.11)$(3.09)$(9.04)$114.01 
Diluted$(2.11)$(3.09)$(9.04)$112.62 
Shares used in computing earnings (loss) per share
Basic15,533 15,468 15,487 14,802 
Diluted15,533 15,468 15,487 14,984 





Inhibrx Biosciences, Inc.
Condensed Consolidated Balance Sheets
(In thousands) 

AS OF DECEMBER 31,
20252024
Cash and cash equivalents$124,220 $152,596 
Other current assets8,612 7,802 
Non-current assets13,646 20,369 
Total assets$146,478 $180,767 
Current liabilities$33,799 $40,730 
Long-term debt100,559 — 
Other non-current liabilities4,127 6,453 
Total liabilities138,485 47,183 
Stockholders’ equity7,993 133,584 
Total liabilities and stockholders’ equity$146,478 $180,767 

FAQ

How did Inhibrx Biosciences (INBX) perform financially in 2025?

In 2025, Inhibrx Biosciences reported a net loss of $140.1 million, or $9.04 per share. This compares with net income of $1.7 billion in 2024, which was driven by a large one-time gain from the prior INBRX-101 transaction.

What were Inhibrx Biosciences’ R&D and G&A expenses for 2025?

Research and development expenses were $113.0 million in 2025, down from $203.7 million in 2024. General and administrative expenses declined to $23.3 million from $127.9 million, mainly as transaction-related and legal costs from the 101 Transaction and litigation rolled off.

What is Inhibrx Biosciences’ cash position and debt level at year-end 2025?

As of December 31, 2025, Inhibrx Biosciences held $124.2 million in cash and cash equivalents. The company also had $100.0 million in outstanding long-term debt and subsequently received $75.0 million of gross proceeds from an amended loan agreement in March 2026.

What key clinical milestones did Inhibrx Biosciences outline for 2026?

Inhibrx plans to submit a BLA for ozekibart in unresectable or metastatic conventional chondrosarcoma early in Q2 2026. It also expects multiple 2026 readouts, including PFS data in colorectal cancer and ORR and PFS data for INBRX-106 in HNSCC.

Which drug candidates are currently in Inhibrx Biosciences’ clinical pipeline?

Following the INBRX-101 sale and spin-off, Inhibrx’s clinical pipeline includes ozekibart (INBRX-109) and INBRX-106. Both use multivalent protein engineering formats that the company believes can be optimized to deliver appropriate agonist activity for specific oncology indications.

How did the prior INBRX-101 transaction affect Inhibrx Biosciences’ results?

The 2024 INBRX-101 transaction generated a large gain recorded in other income, contributing to $1.7 billion of net income that year. That gain reflected consideration from the acquirer, debt extinguishment, asset and liability transfers, and certain transaction costs paid by the acquirer.

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Inhibrx Biosciences Inc

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