KYNTRA BIO, INC. 10-Q

ITEM 5. OTHER INFORMATION. Rule 10b5-1 Trading Arrangements No ne. ITEM 6. E XHIBITS Exhibit Incorporation By Reference Number Exhibit Description Form SEC File No. Exhibit Filing Date 3.1 Amended and Restated Certificate of Incorporation of FibroGen, Inc. 8-K 001-36740 3.1 11/21/2014 3.2 Amended and Restated Bylaws of FibroGen, Inc. 8-K 001-36740 3.1 04/04/2025 3.3 Certificate of Amendment of the Amended and Restated Certificate of Incorporation of FibroGen, Inc. 8-K 001-36740 3.1 06/12/2025 4.1 Form of Common Stock Certificate. 8-K 001-36740 4.1 11/21/2014 4.2 Common Stock Purchase Agreement by and between FibroGen, Inc. and AstraZeneca AB, dated as of October 20, 2014. S-1/A 333-199069 4.17 10/24/2014 72 Table of Contents 10.1*† Amendment No.2 to Second Amended and Restated Exclusive License Agreement, by and among Eluminex Biosciences (Suzhou) Limited, FibroGen, Inc., FibroGen International (Hong Kong) Limited, FibroGen (China) Medical Technology Development Co., Ltd., and Beijing Falikang Pharmaceutical Co., Ltd., dated as of August 5, 2025 . — — — — 10.2*† Termination Agreement, by and between, FibroGen, Inc. and AstraZeneca AB, effective as of February 25, 2024, as amended and restated on August 29, 2025. — — — — 10.3*† Amendment to Share Purchase Agreement, by and among AstraZeneca Treasury Limited, FibroGen China Anemia Holdings, Ltd., and FibroGen, Inc., dated as of August 29, 2025. — — — — 31.1* Certification of Chief Executive Officer, as required by Rule 13a-14(a) or Rule 15d-14(a). — — — — 31.2* Certification of Chief Financial Officer, as required by Rule 13a-14(a) or Rule 15d-14(a). — — — — 32.1* Certification of Principal Executive Officer and Principal Financial Officer, as required by Rule 13a-14(b) or Rule 15d-14(b) and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. §1350)(1)). — — — — 101.INS Inline XBRL Instance Document: the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document. — — — — 101.SCH Inline XBRL Taxonomy Extension Schema With Embedded Linkbase Documents. — — — — 104 Cover Page formatted as inline XBRL and contained in Exhibits 101. — — — — * Filed herewith. † Portions of this exhibit (indicated by asterisks) have been omitted as the Company has determined that (i) the omitted information is not material and (ii) the omitted information would likely cause competitive harm if publicly disclosed or is the type of information the Company treats as confidential. + Indicates a management contract or compensatory plan. 73 Table of Contents SIGNAT URES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. FibroGen, Inc. Date: November 10, 2025 By: /s/ Thane Wettig Thane Wettig Chief Executive Officer (Principal Executive Officer) Date: November 10, 2025 By: /s/ David DeLucia David DeLucia Senior Vice President and Chief Financial Officer (Principal Financial and Accounting Officer) 74