{"url_path":"/sec/aspn/10-q/2026/item-6","section_key":"item-6","section_title":"Item 6 Exhibits.","topic":"sec","document":{"doc_type":"10-Q","doc_date":"2026-05-08","source_url":"https://www.sec.gov/Archives/edgar/data/1145986/0001193125-26-214672-index.html","accession_number":"0001193125-26-214672","cik":"0001145986","ticker":"ASPN","issuer_name":"ASPEN AEROGELS INC","edgar_url":"https://www.sec.gov/Archives/edgar/data/1145986/0001193125-26-214672-index.html","primary_entity_key":"0001145986","primary_entity_name":"ASPEN AEROGELS INC"},"word_count":256,"has_tables":true,"body_markdown":"Item 6. Exhibits.\n\n(a) Exhibits\n\n \n\n \n\n \n\n \n\n31.1\n\n[Certification of principal executive officer under Section 302(a) of the Sarbanes-Oxley Act of 2002.](aspn-ex31_1.htm)\n\n \n\n \n\n \n\n31.2\n\n[Certification of principal financial officer under Section 302(a) of the Sarbanes-Oxley Act of 2002.](aspn-ex31_2.htm)\n\n \n\n \n\n \n\n32*\n\n[Certifications of the principal executive officer and the principal financial officer under Section 906 of the Sarbanes-Oxley Act of 2002.](aspn-ex32.htm)\n\n \n\n \n\n \n\n101.INS\n\nXBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.\n\n \n\n \n\n \n\n101.SCH\n\nInline XBRL Taxonomy Extension Schema With Embedded Linkbase Documents.\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* The certifications attached as Exhibit 32 that accompany this Quarterly Report on Form 10-Q are not deemed filed with the Securities and Exchange Commission and are not to be incorporated by reference into any filing of Aspen Aerogels, Inc. under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date of this Form 10-Q, irrespective of any general incorporation language contained in such filing.\n\n \n\n \n\n \n\n39\n\n \n\nSIGNATURES\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\nASPEN AEROGELS, INC.\n\n \n\n \n\n \n\n \n\n \n\nDate: May 8, 2026\n\n \n\nBy:\n\n \n\n/s/ Donald R. Young\n\n \n\n \n\n \n\n \n\nDonald R. Young\n\n \n\n \n\n \n\n \n\nPresident and Chief Executive Officer\n\n(principal executive officer)\n\n \n\n \n\n \n\n \n\n \n\nDate: May 8, 2026\n\n \n\nBy:\n\n \n\n/s/ Grant Thoele\n\n \n\n \n\n \n\n \n\nGrant Thoele\n\n \n\n \n\n \n\n \n\nChief Financial Officer and Treasurer\n\n(principal financial officer)\n\n \n\n40"}