{"url_path":"/sec/hyln/10-q/2026/item-6","section_key":"item-6","section_title":"Item 6 EXHIBITS","topic":"sec","document":{"doc_type":"10-Q","doc_date":"2026-05-12","source_url":"https://www.sec.gov/Archives/edgar/data/1759631/0001628280-26-034116-index.html","accession_number":"0001628280-26-034116","cik":"0001759631","ticker":"HYLN","issuer_name":"Hyliion Holdings Corp.","edgar_url":"https://www.sec.gov/Archives/edgar/data/1759631/0001628280-26-034116-index.html","primary_entity_key":"0001759631","primary_entity_name":"Hyliion Holdings Corp."},"word_count":310,"has_tables":true,"body_markdown":"ITEM 6. EXHIBITS\n\nExhibit\nNumberDescription\n\n3.1\n[Second Amended and Restated Certificate of Incorporation of the Company, dated October 1, 2020 (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K (File No. 001-38823) filed with the SEC on October 7, 2020).](https://www.sec.gov/Archives/edgar/data/0001759631/000121390020030492/ea127824ex3-1_hyliionhold.htm)\n\n3.2\n[Amended and Restated Bylaws of the Company, dated October 1, 2020 (incorporated by reference to Exhibit 3.2 to the Company’s Current Report on Form 8-K (File No. 001-38823) filed with the SEC on October 7, 2020).](https://www.sec.gov/Archives/edgar/data/0001759631/000121390020030492/ea127824ex3-2_hyliionhold.htm)\n\n31.1*\n[Certification of Principal Executive Officer pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.](hyln-20260331xex311.htm)\n\n31.2*\n[Certification of Principal Financial Officer pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.](hyln-20260331xex312.htm)\n\n32.1**\n[Certification of Principal Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.](hyln-20260331xex321.htm)\n\n32.2**\n[Certification of Principal Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.](hyln-20260331xex322.htm)\n\n101.INS*XBRL Instance Document\n\n101.SCH*XBRL Taxonomy Extension Schema Document\n\n101.CAL*XBRL Taxonomy Extension Calculation Linkbase Document\n\n101.DEF*XBRL Taxonomy Extension Definition Linkbase Document\n\n101.LAB*XBRL Taxonomy Extension Label Linkbase Document\n\n101.PRE*XBRL Taxonomy Extension Presentation Linkbase Document\n\n104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibits 101)\n\n*    Filed herewith.\n\n**    Furnished herewith.\n\n26\n\n[Table of Contents](#i59e221bab3bf4dabaabc1b3d77354234_7)\n\nSIGNATURES\n\nPursuant 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.\n\nDate: May 12, 2026HYLIION HOLDINGS CORP.\n\n/s/ Thomas Healy\n\nName: Thomas Healy\n\nTitle:Chief Executive Officer\n(Principal Executive Officer)\n\n/s/ Jon Panzer\n\nName: Jon Panzer\n\nTitle:Chief Financial Officer\n(Principal Financial Officer)\n\n27"}