Keystone Acquisition Corp. units to allow separate trading of shares and warrants from June 22
Keystone Acquisition Corp., a blank check company, said holders of its units may separately trade Class A ordinary shares and warrants starting on or about June 22, 2026. Units not separated will keep trading under KEYYU, while the shares and warrants will trade under KEYY and KEYYW. The filing is administrative and does not describe a business combination or change in the company's financial position.
Key points
- Separate trading of Class A ordinary shares and warrants begins on or about June 22, 2026.
- Each unit consists of one Class A ordinary share and one-half of one redeemable warrant.
- The initial public offering of 28,750,000 units, including 3,750,000 units from full exercise of the overallotment option, was completed on June 4, 2026.
- Holders must have their brokers contact Efficiency INC., the transfer agent, to separate units.
The filing
Written by AI on Nov 9, 2026, 11:48 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on June 18, 2026.
Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.