{"url_path":"/sec/orka/10-q/2026/item-6","section_key":"item-6","section_title":"Item 6 Exhibits.**","topic":"sec","document":{"doc_type":"10-Q","doc_date":"2026-05-13","source_url":"https://www.sec.gov/Archives/edgar/data/907654/0001213900-26-055769-index.html","accession_number":"0001213900-26-055769","cik":"0000907654","ticker":"ORKA","issuer_name":"Oruka Therapeutics, Inc.","edgar_url":"https://www.sec.gov/Archives/edgar/data/907654/0001213900-26-055769-index.html","primary_entity_key":"0000907654","primary_entity_name":"Oruka Therapeutics, Inc."},"word_count":1630,"has_tables":true,"body_markdown":"**Item 6. Exhibits.**\n\n \n\nThe exhibits filed or furnished as part of this\nQuarterly Report are set forth below.\n\n \n\n**EXHIBIT\nNUMBER**\n \n**DESCRIPTION**\n \n**FORM**\n \n**EXHIBIT**\n \n**FILING\nDATE**\n\n \n \n \n \n \n \n \n \n \n\n2.1†\n \n[Agreement and Plan of Merger and Reorganization, dated as of April 3, 2024, by and among ARCA biopharma, Inc., Atlas Merger Sub Corp., Atlas Merger Sub II, LLC and Oruka Therapeutics, Inc.](http://www.sec.gov/Archives/edgar/data/907654/000119312524085437/d794675dex21.htm)\n \n8-K\n \n2.1\n \nApril 3, 2024\n\n3.1\n \n[Second Amended and Restated Certificate of Incorporation of the Company, filed September 3, 2024.](http://www.sec.gov/Archives/edgar/data/907654/000121390024076184/ea021319301ex3-5_oruka.htm)\n \n8-K\n \n3.5\n \nSeptember 5, 2024\n\n3.2\n \n[Amended and Restated Bylaws of the Company.](http://www.sec.gov/Archives/edgar/data/907654/000121390024076184/ea021319301ex3-6_oruka.htm)\n \n8-K\n \n3.6\n \nSeptember 5, 2024\n\n3.3\n \n[Form of Certificate of Designation of Preferences, Rights and Limitations of Series A Convertible Preferred Stock.](http://www.sec.gov/Archives/edgar/data/907654/000119312513233692/d507513dex31b.htm)\n \nS-1/A\n \n3.1(b)\n \nMay 24, 2013\n\n3.4\n \n[Certificate of Elimination of Series A Convertible Preferred Stock, effective August 29, 2024.](http://www.sec.gov/Archives/edgar/data/907654/000121390024076184/ea021319301ex3-8_oruka.htm)\n \n8-K\n \n3.8\n \nSeptember 5, 2024\n\n3.5\n \n[Certificate of Designation of Preferences, Rights and Limitations of Series B Non-Voting Convertible Preferred Stock.](http://www.sec.gov/Archives/edgar/data/907654/000121390024076184/ea021319301ex3-9_oruka.htm)\n \n8-K\n \n3.9\n \nSeptember 5, 2024\n\n3.6\n \n[Certificate of Designation of Preferences, Rights and Limitations of Series A Non-Voting Convertible Preferred Stock.](http://www.sec.gov/Archives/edgar/data/907654/000121390024078549/ea021443901ex3-1_oruka.htm)\n \n8-K\n \n3.1\n \nSeptember 13, 2024\n\n4.1\n \n[Description of Securities.](https://www.sec.gov/Archives/edgar/data/907654/000121390025021165/ea023044501ex4-1_orukathe.htm)\n \n10-K\n \n4.1\n \nMarch 6, 2025\n\n4.2\n \n[Form of Pre-Funded Warrant, dated August 29, 2024.](https://www.sec.gov/Archives/edgar/data/907654/000121390025021165/ea023044501ex4-3_orukathe.htm)\n \n10-K\n \n4.3\n \nMarch 6, 2025\n\n4.3\n \n[Form of Pre-Funded Warrant, dated September 13, 2024.](http://www.sec.gov/Archives/edgar/data/907654/000121390024078549/ea021443901ex4-1_oruka.htm)\n \n8-K\n \n4.1\n \nSeptember 13, 2024\n\n4.4\n \n[Form of Pre-Funded Warrant, dated September 19, 2025.](https://www.sec.gov/Archives/edgar/data/907654/000121390025090129/ea025786501ex4-1_oruka.htm)\n \n8-K\n \n4.1\n \nSeptember 22, 2025\n\n4.5\n \n[Paruka Warrant, dated December 31, 2024](https://www.sec.gov/Archives/edgar/data/907654/000121390025043279/ea023989801ex4-5_oruka.htm)\n \n10-Q\n \n4.5\n \nMay 14, 2025\n\n4.6\n \n[Paruka Warrant, dated December 12, 2025](https://www.sec.gov/Archives/edgar/data/907654/000121390026026929/ea027330001ex4-6_oruka.htm)\n \n10-K\n \n4.6\n \nMarch 12, 2026\n\n31.1*\n \n[Certification of the Principal Executive Officer pursuant to Rule 13a-14(a) or 15d-14(a) promulgated under the Securities Exchange Act of 1934](ea028775201ex31-1.htm)\n \n \n \n \n \n \n\n31.2*\n \n[Certification of the Principal Financial Officer pursuant to Rule 13a-14(a) or 15d-14(a) promulgated under the Securities Exchange Act of 1934](ea028775201ex31-2.htm)\n \n \n \n \n \n \n\n32.1**\n \n[Certification of the Principal Executive Officer and Principal Financial Officer pursuant to 18 U.S.C. Section 1350 and Rule 13a-14(B) promulgated under the Securities Exchange Act of 1934](ea028775201ex32-1.htm)\n \n \n \n \n \n \n\n101.INS*\n \nInline XBRL Instance Document\n \n \n \n \n \n \n\n101.SCH*\n \nInline XBRL Taxonomy Extension Schema with Embedded Linkbases Document\n \n \n \n \n \n \n\n101.CAL*\n \nInline XBRL Taxonomy Extension Calculation Linkbase Document.\n \n \n \n \n \n \n\n101.DEF*\n \nInline XBRL Taxonomy Extension Definition Linkbase Document.\n \n \n \n \n \n \n\n101.LAB*\n \nInline XBRL Taxonomy Extension Label Linkbase Document.\n \n \n \n \n \n \n\n101.PRE*\n \nInline XBRL Taxonomy Extension Presentation Linkbase Document.\n \n \n \n \n \n \n\n104\n \nCover Page Interactive Data File (embedded within the Inline XBRL document)\n \n \n \n \n \n \n\n \n\n*\nFiled herewith.\n\n \n\n**\nFurnished herewith. The certifications on Exhibit 32.1 hereto are deemed not “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liability of that Section. Such certifications will not be deemed incorporated by reference into any filing under the Securities Act or the Exchange Act.\n\n \n\n†\nExhibits and/or schedules have been omitted pursuant to Item 601(a)(5) of Regulation S-K. The Company hereby undertakes to furnish supplementally copies of any of the omitted exhibits and schedules upon request by the SEC; provided, however, that the Company may request confidential treatment pursuant to Rule 24b-2 under the Exchange Act for any exhibits or schedules so furnished. Certain portions of this exhibit (indicated by “***”) have been omitted because they are both (i) not material and (ii) is the type of information that the registrant both customarily and actually treats as private and confidential.\n\n \n\n63\n\n \n\n \n\n**SIGNATURES**\n\n \n\nPursuant to the requirements\nof the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto\nduly authorized.\n\n \n\n \n**Oruka Therapeutics, Inc.**\n\n \n \n \n\nDate: May 13, 2026\nBy: \n/s/ Lawrence Klein\n\n \n \nLawrence Klein\n\n*President and Chief Executive Officer\n(Principal Executive Officer)*\n\n \n\nDate: May 13, 2026\nBy: \n/s/ Arjun Agarwal\n\n \n \nArjun Agarwal\n\n*Senior Vice President, Finance and Treasurer\n(Principal Financial Officer and\nPrincipal Accounting 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