{"url_path":"/sec/clir/8-k/2026-06-01/item-9-01","section_key":"item-9-01","section_title":"Item 9.01 ****Financial Statements and Exhibits.**","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-06-01","source_url":"https://www.sec.gov/Archives/edgar/data/1434524/0001104659-26-068614-index.html","accession_number":"0001104659-26-068614","cik":"0001434524","ticker":"CLIR","issuer_name":"ClearSign Technologies Corp","edgar_url":"https://www.sec.gov/Archives/edgar/data/1434524/0001104659-26-068614-index.html","primary_entity_key":"0001434524","primary_entity_name":"ClearSign Technologies Corp"},"word_count":126,"has_tables":true,"body_markdown":"**Item 9.01****Financial Statements and Exhibits.**\n\n \n\n**(d) Exhibits.**\n\n \n\n**Exhibit No.**\n \n**Description**\n\n[1.1](tm2615953d1_ex1-1.htm)\n \n[Underwriting Agreement, dated as of May 28, 2026, by and between the Company and Newbridge Securities Corporation](tm2615953d1_ex1-1.htm)\n\n[5.1](tm2615953d1_ex5-1.htm)\n \n[Legal opinion of Mitchell Silberberg & Knupp LLP](tm2615953d1_ex5-1.htm)\n\n[23.1](tm2615953d1_ex5-1.htm)\n \n[Consent of Mitchell Silberberg & Knupp LLP](tm2615953d1_ex5-1.htm)\n\n[99.1](tm2615953d1_ex99-1.htm)\n \n[Press release, dated as of May 28, 2026](tm2615953d1_ex99-1.htm)\n\n[99.2](tm2615953d1_ex99-2.htm)\n \n[Press release, dated as of May 29, 2026](tm2615953d1_ex99-2.htm)\n\n104\n \nCover Page Interactive Data File (embedded within the Inline XBRL document).\n\n \n\n \n\n \n\n**SIGNATURE**\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\nby the undersigned hereunto duly authorized.\n\n \n\nDated: June 1, 2026\n\n \n\n \n**CLEARSIGN TECHNOLOGIES CORPORATION**\n\n \n \n \n\n \nBy:\n/s/ Colin James Deller\n\n \nName:\nColin James Deller\n\n \nTitle:\nChief Executive Officer"}