KYNTRA BIO, INC. 10-Q

ITEM 5. OTHER INFORMATION. None. 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. S-1/A 333-199069 3.4 10/23/2014 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 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 Document — — — — 101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase Document — — — — 101.DEF Inline XBRL Taxonomy Extension Definition Linkbase Document — — — — 101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document — — — — 101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document — — — — 104 Cover Page Interactive Data File (formatted as inline XBRL with applicable taxonomy extension information contained in Exhibits 101.) — — — — * Filed herewith 83 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. Dated: August 8, 2022 By: /s/ Enrique Conterno Enrique Conterno Chief Executive Officer (Principal Executive Officer) Dated: August 8, 2022 By: /s/ Juan Graham Juan Graham Senior Vice President and Chief Financial Officer (Principal Financial and Accounting Officer) 84