Inhibrx Biosciences, Inc. 10-Q

Item 5. Other Information. Insider Trading Arrangements During the quarter ended March 31, 2026, none of our directors or officers (as defined in Rule 16a-1(f) under the Exchange Act) adopted or terminated any “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as those terms are defined in Item 408 of Regulation S-K. 31 Item 6. Exhibits. (a) Exhibits. Exhibit No. Description of Exhibit Filed Herewith Form Incorporated By Reference File No. Date Filed 3.1 Amended & Restated Certificate of Incorporation of Inhibrx Biosciences, Inc. 8-K 001-42031 5/30/2024 3.2 Amended & Restated Bylaws of Inhibrx Biosciences, Inc. 8-K 001-42031 5/30/2024 4.1 Form of Warrant to Purchase Stock 10 001-42031 4/25/2024 4.2 Form of Warrant to Purchase Stock by and between Inhibrx Biosciences, Inc. and entities affiliated with Oxford Finance LLC X 10.1 First Amendment to the Loan and Security Agreement, dated March 18, 2026, among Inhibrx Biosciences, Inc., Oxford Finance LLC, and the other lenders party thereto 10-K 001-42031 3/19/2026 31.1 Certification of Principal Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 X 31.2 Certification of Principal Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 X 32.1* Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 X 32.2* Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 X 101.INS Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because XBRL tags are embedded within the Inline XBRL document X 101.SCH Inline XBRL Taxonomy Extension Schema Document X 101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase Document X 101.DEF Inline XBRL Taxonomy Extension Definition Linkbase Document X 101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document X 101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document X 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document contained in Exhibit 101 X ^ Certain exhibits and schedules have been omitted pursuant to Item 601(a)(5) of Regulation S-K. The Company agrees to furnish supplementally to the SEC a copy of any omitted exhibits or schedules upon request. Pursuant to Item 601(a)(6) of Regulation S-K, certain information from this exhibit have been redacted as their disclosure would constitute a clearly unwarranted invasion of personal privacy. * This certification is deemed not filed for purposes of section 18 of the Exchange Act or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act or the Exchange Act. 32 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 thereunto duly authorized. INHIBRX BIOSCIENCES, INC. Date: May 14, 2026 /s/ Mark P. Lappe Mark P. Lappe Chief Executive Officer and Chairman (Principal Executive Officer) Date: May 14, 2026 /s/ Kelly D. Deck Kelly D. Deck, C.P.A. Chief Financial Officer (Principal Financial and Accounting Officer) 33