{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-26-069960","form_type":"8-K","ticker":"KEYY","cik":"0002102771","company_name":"Keystone Acquisition Corp.","filed_at":"2026-06-18T16:18:24+00:00","discovered_at":"2026-06-18T16:19:00.267717+00:00","generated_at":"2026-06-18T16:19:04.883150+00:00","sec_items":["8.01","9.01"],"event_type":"other","sentiment":"neutral","materiality_score":0.1,"calibrated_materiality_score":0.1,"confidence":"high","headline":"Keystone Acquisition Corp. announces separate trading of Class A shares and warrants starting June 22, 2026","bullets":["Holders of 28,750,000 units (including overallotment) from IPO completed June 4, 2026 may elect separate trading.","Separate trading of Class A ordinary shares (KEYY) and warrants (KEYYW) begins on or about June 22, 2026.","Units not separated continue trading under KEYYU on Nasdaq; no fractional warrants will be issued.","Holders must contact transfer agent Efficiency INC. to separate units into shares and warrants."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-26-069960","json":"https://secwatch.observer/filing/0001213900-26-069960.json","markdown":"https://secwatch.observer/filing/0001213900-26-069960.md","text":"https://secwatch.observer/filing/0001213900-26-069960.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/2102771/000121390026069960/0001213900-26-069960-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/2102771/000121390026069960/ea0295290-8k_keystone.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-18T16:19:04.883150+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}