{"url_path":"/sec/npwr/8-k/2026-09-11/cover-page","section_key":"cover-page","section_title":"Cover Page","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-09-11","source_url":"https://www.sec.gov/Archives/edgar/data/1845437/0001104659-26-107045-index.html","accession_number":"0001104659-26-107045","cik":"0001845437","ticker":"NPWR","issuer_name":"Net Power Inc.","edgar_url":"https://www.sec.gov/Archives/edgar/data/1845437/0001104659-26-107045-index.html","primary_entity_key":"0001845437","primary_entity_name":"Net Power Inc."},"word_count":350,"has_tables":true,"body_markdown":"false\n0001845437\n\n0001845437\n\n2026-09-08\n2026-09-08\n\n0001845437\n\nNPWR:ClassACommonStockparvalueMember\n\n2026-09-08\n2026-09-08\n\n0001845437\n\nNPWR:WarrantseachexercisableMember\n\n2026-09-08\n2026-09-08\n\niso4217:USD\n\nxbrli:shares\n\niso4217:USD\n\nxbrli:shares\n\n \n\n \n\n \n\n**UNITED STATES**\n\n**SECURITIES AND EXCHANGE COMMISSION**\n\n**Washington, D.C. 20549**\n\n \n\n**FORM 8-K**\n\n \n\n**CURRENT REPORT**\n\n \n\n**Pursuant to Section 13 or 15(d) of the Securities\nExchange Act of 1934**\n\n \n\nDate of report (Date of earliest event reported):\nSeptember 8, 2026\n\n \n\n**NET POWER INC.**\n\n \n\n(Exact name of registrant as specified in its charter)\n\n \n\n**Delaware**\n \n**001-40503**\n \n**98-1580612**\n\n(State or other jurisdiction of incorporation)\n \n(Commission File Number)\n \n(IRS Employer Identification No.)\n\n \n\n**11700 Katy Freeway, Suite 700**\n\n**Houston, Texas 77079**\n\n(Address of principal executive offices, including\nzip code)\n\n \n\n**(888) 323-6797**\n\n(Registrant’s telephone number, including\narea code)\n\n \n\n**Not Applicable**\n\n(Former name or former address, if changed since\nlast report)\n\n \n\nCheck the appropriate box below if the Form 8-K filing is intended\nto simultaneously satisfy the filing obligation of the registrant under any of the following provisions:\n\n \n\n¨ Written\ncommunications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)\n\n \n\n¨ Soliciting\nmaterial pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)\n\n \n\n¨\nPre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))\n\n \n\n¨\nPre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))\n\n \n\nSecurities registered pursuant to Section 12(b) of the Act:\n\n \n\n**Title of each class**\n**Trading Symbol(s)**\n**Name of each exchange on which\nregistered**\n\nClass A Common Stock, par value $0.0001 per share\nNPWR\nThe New York Stock Exchange\n\nWarrants, each exercisable for one share of Class A Common Stock at a price of $11.50 per share\nNPWR-WT\nThe New York Stock Exchange\n\n \n\nIndicate by check mark whether the registrant is an emerging growth\ncompany as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange\nAct of 1934 (§ 240.12b-2 of this chapter).\n\n \n\nEmerging growth company x\n\n \n\nIf an emerging growth company, indicate by check mark if the registrant\nhas elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant\nto Section 13(a) of the Exchange Act. ¨"}