{"url_path":"/sec/gpatw/8-k/2026-05-14/cover-page","section_key":"cover-page","section_title":"Cover Page","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-05-14","source_url":"https://www.sec.gov/Archives/edgar/data/1834526/0001213900-26-056065-index.html","accession_number":"0001213900-26-056065","cik":"0001834526","ticker":"GPAT","issuer_name":"GP-Act III Acquisition Corp.","edgar_url":"https://www.sec.gov/Archives/edgar/data/1834526/0001213900-26-056065-index.html","primary_entity_key":"0001834526","primary_entity_name":"GP-Act III Acquisition Corp."},"word_count":383,"has_tables":true,"body_markdown":"false\n--12-31\n0001834526\n00-0000000\n\n0001834526\n\n2026-05-13\n2026-05-13\n\n0001834526\n\nGPAT:UnitsEachConsistingOfOneClassOrdinaryShareAndOnehalfOfOneRedeemableWarrantMember\n\n2026-05-13\n2026-05-13\n\n0001834526\n\nGPAT:ClassOrdinarySharesParValue0.0001PerShareMember\n\n2026-05-13\n2026-05-13\n\n0001834526\n\nGPAT:RedeemableWarrantsEachWholeWarrantExercisableForOneClassOrdinaryShareAtExercisePriceOf11.50Member\n\n2026-05-13\n2026-05-13\n\niso4217:USD\n\nxbrli:shares\n\niso4217:USD\n\nxbrli:shares\n\n \n\n \n\n**UNITED STATES**\n\n**SECURITIES AND EXCHANGE COMMISSION**\n\n**Washington, D.C. 20549**\n\n \n\n \n\n \n\n**FORM 8-K**\n\n \n\n \n\n** **\n\n**CURRENT\nREPORT**\n\n**PURSUANT\nTO SECTION 13 OR 15(D)**\n\n**OF\nTHE SECURITIES EXCHANGE ACT OF 1934**\n\n** **\n\n**Date\nof Report (Date of earliest event reported): May 13, 2026**\n\n** **\n\n**GP-Act\nIII Acquisition Corp.**\n\n**(Exact\nname of registrant as specified in its charter)**\n\n \n\n \n\n**Cayman\nIslands**\n \n**001-42046**\n \n**N/A**\n\n**(State or other jurisdiction**\n \n**(Commission File Number)**\n \n**(I.R.S. Employer**\n\n**of incorporation)**\n \n \n \n**Identification No.)**\n\n** **\n\n**300\nPark Avenue****, 2nd Floor,\nNew York****, New\nYork**\n \n**10022**\n\n**(Address of principal executive offices)**\n \n**(Zip Code)**\n\n** **\n\n**+1 (212) 430-4340**\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\n \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☒\nWritten communications\npursuant to Rule 425 under the Securities Act (17 CFR 230.425)\n\n \n \n\n☐\nSoliciting material pursuant\nto Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)\n\n \n \n\n☐\nPre-commencement communications\npursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))\n\n \n \n\n☐\nPre-commencement communications\npursuant 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 Securities Exchange\nAct of 1934:\n\n \n\n**Title of each class**\n \n**Trading\nSymbol(s)**\n \n**Name of each exchange\non which registered**\n\n**Units, each consisting of one Class A ordinary share and one-half of one redeemable warrant**\n \n**GPATU**\n \n**The Nasdaq Stock Market LLC**\n\n**Class A ordinary shares, par value $0.0001 per share**\n \n**GPAT**\n \n**The Nasdaq Stock Market LLC**\n\n**Redeemable warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50**\n \n**GPATW**\n \n**The Nasdaq Stock Market LLC**\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 ☒\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. ☐"}