{"filing":{"accession_number":"0001213900-26-070821","cik":"0002000410","ticker":"EURKU","company_name":"Eureka Acquisition Corp","form":"8-K","filing_date":"2026-06-23","report_date":null,"primary_document":"ea0295465-8k425_eureka.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/2000410/000121390026070821/ea0295465-8k425_eureka.htm"},"events":[{"id":12957,"run_id":11497,"accession_number":"0001213900-26-070821","anchor_item_number":"1.01","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"summary":"This disclosure reports Amendment No. 1 to a business combination agreement (BCA) between Eureka Acquisition Corp (SPAC), Marine Thinking Inc., and an amalgamation subsidiary, dated June 12, 2026. The amendment modifies post-closing director requirements under section 5.19 of the original BCA filed October 29, 2025. Material amendments to definitive M\u0026A agreements constitute ma_activity under Item 1.01, as they affect the terms and conditions of the pending business combination.","company_name":"Eureka Acquisition Corp","ticker":"EURKU","filing_date":"2026-06-23","form":"8-K","submitted_at":null,"items":[{"id":9960,"accession_number":"0001213900-26-070821","item_number":"1.01","item_title":"Entry into a Material Definitive","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"This disclosure reports Amendment No. 1 to a business combination agreement (BCA) between Eureka Acquisition Corp (SPAC), Marine Thinking Inc., and an amalgamation subsidiary, dated June 12, 2026. The amendment modifies post-closing director requirements under section 5.19 of the original BCA filed October 29, 2025. Material amendments to definitive M\u0026A agreements constitute ma_activity under Item 1.01, as they affect the terms and conditions of the pending business combination.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-06-23T10:10:11.703039+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":9960,"accession_number":"0001213900-26-070821","item_number":"1.01","item_title":"Entry into a Material Definitive","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"This disclosure reports Amendment No. 1 to a business combination agreement (BCA) between Eureka Acquisition Corp (SPAC), Marine Thinking Inc., and an amalgamation subsidiary, dated June 12, 2026. The amendment modifies post-closing director requirements under section 5.19 of the original BCA filed October 29, 2025. Material amendments to definitive M\u0026A agreements constitute ma_activity under Item 1.01, as they affect the terms and conditions of the pending business combination.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-06-23T10:10:11.703039+00:00","company_name":"Eureka Acquisition Corp","ticker":"EURKU","filing_date":"2026-06-23"}]}