{"url_path":"/sec/nuwe/10-q/2026/item-6","section_key":"item-6","section_title":"Item 6 Exhibits","topic":"sec","document":{"doc_type":"10-Q","doc_date":"2026-05-15","source_url":"https://www.sec.gov/Archives/edgar/data/1506492/0001140361-26-021649-index.html","accession_number":"0001140361-26-021649","cik":"0001506492","ticker":"NUWE","issuer_name":"Nuwellis, Inc.","edgar_url":"https://www.sec.gov/Archives/edgar/data/1506492/0001140361-26-021649-index.html","primary_entity_key":"0001506492","primary_entity_name":"Nuwellis, Inc."},"word_count":1208,"has_tables":true,"body_markdown":"Item 6.\n\nExhibits\n\n \n\nThe exhibits filed as part of this Quarterly Report on Form 10-Q are listed in the Exhibit Index below.\n\n \n\n19\n\n[Table of Contents](#CONTENTS)\n\nExhibit Index\n\nNuwellis, Inc.\n\nForm 10-Q for the Quarterly Period Ended March 31, 2026\n\n \n\n               \n\n \n   \n\n**Incorporated\nBy Reference**\n\n   \n \n  \n\n**Exhibit**\n\n**Number**\n\n \n\n**Exhibit\nDescription**\n\n \n\n**Form**\n\n \n\n**File**\n\n**Number**\n\n \n\n**Date of First\nFiling**\n\n \n\n**Exhibit**\n\n**Number**\n\n \n\n**Filed**\n\n**Herewith**\n\n \n\n**Furnished\nHerewith**\n\n[3.1](https://www.sec.gov/Archives/edgar/data/1506492/000110465912005820/a11-26786_1ex3d1.htm)\n Fourth Amended and Restated Certificate of Incorporation \n10\n 001-35312 \nFebruary 1, 2012\n 3.1 \n \n  \n\n \n   \n \n   \n \n   \n \n  \n\n[3.2](https://www.sec.gov/Archives/edgar/data/1506492/000110465917002209/a17-1987_1ex3d1.htm)\n Certificate of Amendment to the Fourth Amended and Restated Certificate of Incorporation \n8-K\n 001-35312 \nJanuary 13, 2017\n 3.1 \n \n  \n\n \n   \n \n   \n \n   \n \n  \n\n[3.3](https://www.sec.gov/Archives/edgar/data/1506492/000110465917034447/a17-13940_1ex3d1.htm)\n Certificate of Amendment to the Fourth Amended and Restated Certificate of Incorporation \n8-K\n 001-35312 \nMay 23, 2017\n 3.1 \n \n  \n\n \n   \n \n   \n \n   \n \n  \n\n[3.4](https://www.sec.gov/Archives/edgar/data/1506492/000114036117038508/ex3_1.htm)\n Certificate of Amendment to the Fourth Amended and Restated Certificate of Incorporation \n8-K\n 001-35312 \nOctober 12, 2017\n 3.1 \n \n  \n\n \n   \n \n   \n \n   \n \n  \n\n[3.5](https://www.sec.gov/Archives/edgar/data/1506492/000114036119000021/s002610x2_ex3-1.htm)\n\n \n\nCertificate of Amendment to the Fourth Amended and Restated Certificate\nof Incorporation\n\n \n\n8-K\n\n \n\n001-35312\n\n \n\nJanuary 2, 2019\n\n \n\n3.1\n\n \n \n  \n\n \n   \n \n   \n \n   \n \n  \n\n[3.6](https://www.sec.gov/Archives/edgar/data/1506492/000114036120023203/brhc10016044_ex3-1.htm)\n Certificate of Amendment to the Fourth Amended and Restated Certificate of Incorporation \n8-K/A\n 001-35312 \nOctober 16, 2020\n 3.1 \n \n  \n\n \n   \n \n   \n \n   \n \n  \n\n[3.7](https://www.sec.gov/Archives/edgar/data/1506492/000114036121014415/brhc10023443_ex3-1.htm)\n\n \n\nCertificate of Amendment to the Fourth Amended and Restated Certificate\nof Incorporation\n\n \n\n8-K\n\n \n\n001-35312\n\n \n\nApril 27, 2021\n\n \n\n3.1\n\n \n \n  \n\n \n   \n \n   \n \n   \n \n  \n\n[3.8](https://www.sec.gov/Archives/edgar/data/1506492/000114036122045030/brhc10045228_ex3-1.htm)\n\n \n\nCertificate of Amendment to the Fourth Amended and Restated Certificate\nof Incorporation\n\n \n\n8-K\n\n \n\n001-35312\n\n \n\nDecember 9, 2022\n\n \n\n3.1\n\n \n \n  \n\n \n   \n \n   \n \n   \n \n  \n\n[3.9](https://www.sec.gov/Archives/edgar/data/1506492/000114036124031389/ef20031638_ex3-1.htm)\n\n \n\nCertificate of Amendment to the Fourth Amended and Restated Certificate\nof Incorporation\n\n \n\n8-K\n\n \n\n001-35312\n\n \n\nJune 26, 2024\n\n \n\n3.1\n\n \n \n  \n\n \n   \n \n   \n \n   \n \n  \n\n[3.10](https://www.sec.gov/Archives/edgar/data/1506492/000114036125024517/ef20051405_ex3-1.htm)\n\n \n\nCertificate of Amendment to Fourth Amended and Restated Certificate of\nIncorporation, as amended, of Nuwellis, Inc.\n\n \n\n8-K\n\n \n\n001-35312\n\n \n\nJuly 2, 2025\n\n \n\n3.1\n\n \n \n  \n\n \n   \n \n   \n \n   \n \n  \n\n[3.11](https://www.sec.gov/Archives/edgar/data/1506492/000114036124046166/ef20034581_ex3-13.htm)\n\n \n\nThird Amended and Restated Bylaws\n\n \n\n10-Q\n\n \n\n000-35312\n\n \n\nNovember 12, 2024\n\n \n\n3.13\n\n \n \n  \n\n \n   \n \n   \n \n   \n \n  \n\n[3.12](https://www.sec.gov/Archives/edgar/data/1506492/000114036124046166/ef20034581_ex3-14.htm)\n\n \n\nAmendment to Third Amended and Restated Bylaws\n\n \n\n10-Q\n\n \n\n001-35312\n\n \n\nNovember 12, 2024\n\n \n\n3.14\n\n \n \n  \n\n \n   \n \n   \n \n   \n \n  \n\n[3.13](https://www.sec.gov/Archives/edgar/data/1506492/000156761917002350/s001918x7_ex3-7.htm)\n Form of Certificate of Designation of Preferences, Rights and Limitations of Series F Convertible Preferred Stock \nS-1/A\n 333-221010  \nNovember 17, 2017\n 3.7 \n \n  \n\n \n\n20\n\n[Table of Contents](#CONTENTS)\n\n               \n\n \n   \n\n**Incorporated\nBy Reference**\n\n \n \n   \n \n\n**Exhibit**\n\n**Number**\n\n **Exhibit Description** \n**Form**\n \n\n**File**\n\n**Number**\n\n \n**Date of First Filing** \n\n**Exhibit**\n\n**Number**\n\n \n\n**Filed**\n\n**Herewith**\n\n \n**Furnished Herewith**\n\n[3.14](https://www.sec.gov/Archives/edgar/data/1506492/000114036122037623/ny20005271x15_ex3-1.htm)\n\n \n\nCertificate of Designation of Preferences, Rights and Limitations of\nSeries I Convertible Preferred Stock\n\n \n\n8-K\n\n \n\n001-35312\n\n \n\nOctober 18, 2022\n\n \n\n3.1\n\n   \n \n\n \n   \n \n   \n  \n \n   \n \n\n[3.15](https://www.sec.gov/Archives/edgar/data/1506492/000114036125021870/ef20050313_ex3-1.htm)\n\n \n\nCertificate of Designations of Preferences, Rights and Limitations of\nSeries F-1 Convertible Preferred Stock\n\n \n\n8-K\n\n \n\n001-35312\n\n \n\nJune 9, 2025\n\n \n\n3.1\n\n   \n \n\n \n   \n \n   \n  \n \n   \n \n\n[4.1](https://www.sec.gov/Archives/edgar/data/1506492/000114036126002906/ny20058654x4_ex4-1.htm)\n\n \n\nForm of Common Stock Purchase Warrant\n\n \n\n8-K\n\n \n\n001-35312\n\n \n\nJanuary 30, 2026\n\n \n\n4.1\n\n   \n \n\n \n   \n \n   \n  \n \n   \n \n\n[4.2](https://www.sec.gov/Archives/edgar/data/1506492/000114036126002906/ny20058654x4_ex4-2.htm)\n\n \n\nForm of Pre-Funded Warrant\n\n \n\n8-K\n\n \n\n001-35312\n\n \n\nJanuary 30, 2026\n\n \n\n4.2\n\n   \n \n\n \n   \n \n   \n  \n \n   \n \n\n[4.3](https://www.sec.gov/Archives/edgar/data/1506492/000114036126002906/ny20058654x4_ex4-3.htm)\n\n \n\nForm of January Inducement Warrant\n\n \n\n8-K\n\n \n\n001-35312\n\n \n\nJanuary 30, 2026\n\n \n\n4.3\n\n   \n \n\n \n   \n \n   \n  \n \n   \n \n\n[10.1](https://www.sec.gov/Archives/edgar/data/1506492/000114036126002906/ny20058654x4_ex10-1.htm)\n\n \n\nForm of Securities Purchase Agreement, dated as of January 29, 2026, by\nand among the Company and the Purchaser identified on the signature page\nthereto\n\n \n\n8-K\n\n \n\n001-35312\n\n \n\nJanuary 30, 2026\n\n \n\n10.1\n\n   \n \n\n \n   \n \n   \n  \n \n   \n \n\n[10.2](https://www.sec.gov/Archives/edgar/data/1506492/000114036126002906/ny20058654x4_ex10-2.htm)\n\n \n\nPlacement Agency Agreement, dated as of January 29, 2026, by and\nbetween the Company and the Placement Agent\n\n \n\n8-K\n\n \n\n001-35312\n\n \n\nJanuary 30, 2026\n\n \n\n10.2\n\n   \n \n\n \n   \n \n   \n  \n \n   \n \n\n[10.3](https://www.sec.gov/Archives/edgar/data/1506492/000114036126002906/ny20058654x4_ex10-3.htm)\n\n \n\nForm of Registration Rights Agreement, dated as of January 29, 2026, by\nand among the Company and the Purchaser identified on the signature page\nthereto.\n\n \n\n8-K\n\n \n\n001-35312\n\n \n\nJanuary 30, 2026\n\n \n\n10.3\n\n   \n \n\n \n   \n \n   \n  \n \n   \n \n\n[10.4](https://www.sec.gov/Archives/edgar/data/1506492/000114036126002906/ny20058654x4_ex10-4.htm)\n\n \n\nForm of Warrant Inducement Offer Letter\n\n \n\n8-K\n\n \n\n001-35312\n\n \n\nJanuary 30, 2026\n\n \n\n10.4\n\n   \n \n\n \n   \n \n   \n  \n \n   \n \n\n[10.5](https://www.sec.gov/Archives/edgar/data/1506492/000114036126002906/ny20058654x4_ex10-5.htm)\n\n \n\nSecurities Purchase Agreement, dated January 29, 2026, by and among the\nCompany, Rendiatech and the sellers named therein.\n\n \n\n8-K\n\n \n\n001-35312\n\n \n\nJanuary 30, 2026\n\n \n\n10.5\n\n   \n \n\n \n   \n \n   \n  \n \n   \n \n\n[10.6](https://www.sec.gov/Archives/edgar/data/1506492/000114036126002906/ny20058654x4_ex10-6.htm)\n\n \n\nOffer Letter, by and between Nuwellis, Inc. and Carisa Schultz,\neffective February 2, 2026\n\n \n\n8-K\n\n \n\n001-35312\n\n \n\nJanuary 30, 2026\n\n \n\n10.6\n\n   \n \n\n \n   \n \n   \n  \n \n   \n \n\n[31.1](ef20070454_ex31-1.htm)\n Certification of Chief Executive Officer\npursuant to Section 302 of the Sarbanes-Oxley Act of 2002 \n \n   \n  \n \n X \n \n\n \n   \n \n   \n  \n \n   \n \n\n[31.2](ef20070454_ex31-2.htm)\n Certification of Chief Financial Officer\npursuant to Section 302 of the Sarbanes-Oxley Act of 2002 \n \n   \n  \n \n X \n \n\n \n   \n \n   \n  \n \n   \n \n\n[32.1](ef20070454_ex32-1.htm)\n Certification of Chief Executive Officer\npursuant to Section 906 of the Sarbanes-Oxley Act of 2002 \n \n   \n  \n \n X \n \n\n \n   \n \n   \n  \n \n   \n \n\n[32.2](ef20070454_ex32-2.htm)\n Certification of Chief Financial Officer\npursuant to Section 906 of the Sarbanes-Oxley Act of 2002 \n \n   \n  \n \n X \n \n\n \n   \n \n   \n  \n \n   \n \n\n101.INS\n Inline XBRL Instance\nDocument \n \n   \n  \n \n X \n \n\n \n   \n \n   \n  \n \n   \n \n\n101.SCH\n Inline XBRL Taxonomy\nExtension Schema Document \n \n   \n  \n \n X \n \n\n \n   \n \n   \n  \n \n   \n \n\n101.CAL\n\n \n\nInline XBRL Taxonomy Extension Calculation Linkbase Document\n\n \n\n \n\n   \n  \n \n X \n \n\n \n   \n \n   \n  \n \n   \n \n\n101.DEF\n\n \n\nInline XBRL Taxonomy Extension Definition Linkbase Document\n\n \n\n \n\n   \n  \n \n X \n \n\n \n   \n \n   \n  \n \n   \n \n\n101.LAB\n\n \n\nInline XBRL Taxonomy Extension Label Linkbase Document\n\n \n\n \n\n   \n  \n \n X \n \n\n \n   \n \n   \n  \n \n   \n \n\n101.PRE\n\n \n\nInline XBRL Taxonomy Extension Presentation Linkbase Document\n\n \n\n \n\n   \n  \n \n X \n \n\n \n   \n \n   \n  \n \n   \n \n\n104\n Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101) \n \n   \n  \n \n X \n \n\n \n\n21\n\n[Table of Contents](#CONTENTS)\n\nSIGNATURES\n\n \n\nPursuant 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.\n\n \n\n \n \n \n \n\n \n\nNuwellis, Inc.\n\n \n \n \n \n\nDate: May 15, 2026\n\nBy:\n\n/s/ John L. Erb\n\n \n\n \n \n\nJohn L. 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