Source-grounded facts extracted from Keystone Acquisition Corp.'s SEC 8-K filings across all families, newest first. Each cites a verbatim SEC excerpt.
Keystone Acquisition Corp. issued an aggregate of 8,468,750 warrants of warrant to the Sponsor and the Representatives for $1.00 per Private Placement Warrant.
“On June 4, 2026, simultaneously with the closing of the IPO, pursuant to the Private Placement Warrants Purchase Agreements, the Company completed the private sale of an aggregate of 8,468,750 warrants (the “ Private Placement Warrants ”) to the Sponsor and the Representatives at a purchase price of $1.00 per Private Placement Warrant, generating gross proceeds to the Company of $8,468,750.”
Governance Changes
Keystone Acquisition Corp.: Adopted Amended and Restated Memorandum and Articles of Association in connection with IPO (effective 2026-06-02).
“On June 2, 2026, in connection with the IPO, the Company adopted its Amended and Restated Memorandum and Articles of Association (the “ Amended Articles ”), effective the same day.”
Martin Payne was appointed as Director at Keystone Acquisition Corp..
“On June 2, 2026, in connection with the IPO, Speaker John A. Boehner, Paul Y. Cho and Martin Payne were appointed to the board of directors of the Company (the “ Board ”).”
Paul Y. Cho was appointed as Director at Keystone Acquisition Corp..
“On June 2, 2026, in connection with the IPO, Speaker John A. Boehner, Paul Y. Cho and Martin Payne were appointed to the board of directors of the Company (the “ Board ”).”
John A. Boehner was appointed as Director at Keystone Acquisition Corp..
“On June 2, 2026, in connection with the IPO, Speaker John A. Boehner, Paul Y. Cho and Martin Payne were appointed to the board of directors of the Company (the “ Board ”).”
Facts are extracted by an LLM and gated to those whose source quote is present verbatim in the filing text. Coverage is best-effort while backfill and monitoring mature; this is not yet a full-market index. See methodology.