secwatch.observer — SEC 8-K summary ====================================== Issuer: Keystone Acquisition Corp. (KEYY) CIK: 0002102771 Form: 8-K Filed at: 2026-06-10T19:08:07+00:00 Accession: 0001213900-26-067269 Event type: other_material Sentiment: neutral Materiality: 0.75 Item codes: 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Keystone Acquisition Corp. closes $287.5M IPO and $8.5M private placement ------------------------------------------------------------------------- - IPO of 28,750,000 units at $10.00/unit raised $287.5M gross. - Private placement of 8,468,750 warrants at $1.00 each raised $8.47M. - $288.2M placed in trust account at $10.025 per unit. - Transaction costs totaled $17.87M including $11.5M deferred underwriting. - As of June 4, 2026, working capital outside trust was $1.26M. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/2102771/000121390026067269/0001213900-26-067269-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/2102771/000121390026067269/ea0294122-8k_keystone.htm HTML page: https://secwatch.observer/filing/0001213900-26-067269 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer