Registration 333-295539
- Gross proceeds
- 250000000.0
- Net proceeds
- 235000000.0
- Deal price
- 10.0
- Shares
- 25000000
- Offering amount
- $250,000,000
- Offering price
- $10.00
- Ticker
- KEYYU
Company research
Keystone Acquisition Corp.
CIK 2102771Updated Sep 24, 2026
KEYY price & chart
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NASDAQ:KEYY on TradingView ↗About the company
We are a newly incorporated blank check company incorporated as a Cayman Islands exempted company and incorporated for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses or entities, which we refer to throughout this prospectus as our initial business combination. We have not selected any potential business combination target and we have not, nor has anyone on our behalf, initiated any substantive discussions, directly or indirectly, with any potential business combination target.
In the news
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Recent filings
10-Q filing
Other Events
Items 8.01, 9.01
Other Events
Items 8.01, 9.01
Entry into a Material Definitive Agreement · Unregistered Sales of Equity Securities · Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year · Other Events
Items 1.01, 3.02, 5.02, 5.03, 8.01, 9.01
424B4 filing
Show 5 more recent filings
Offerings
Filing attachments
ea029529001ex99-1.htm · 8-K · 2026-06-18
EX-99.1 2 ea029529001ex99-1.htm PRESS RELEASE, DATED JUNE 18, 2026 Exhibit 99.1 Keystone Acquisition Corp. Announces the Separate Trading of its Class A Ordinary Shares and Warrants, Commencing on or about June 22, 2026. New York, New York, June 18, 2026 (GLOBE NEWSWIRE) -- Keystone Acquisition Corp. (Nasdaq: KEYYU) (the “Company”) announced that holders of the units sold in the Company’s initial public offering of 28,750,000 units, which includes 3,750,000 units issued pursuant to the exe…
Read attachment ↗ea029412201ex99-1.htm · 8-K · 2026-06-10
EX-99.1 2 ea029412201ex99-1.htm AUDITED BALANCE SHEET AS OF JUNE 4, 2026 Exhibit 99.1 KEYSTONE ACQUISITION CORP. INDEX TO FINANCIAL STATEMENT Page Financial Statement of Keystone Acquisition Corp.: Report of Independent Registered Public Accounting Firm F-2 Balance Sheet as of June 4, 2026 F-3 Notes to Financial Statement F-4 F-1 REPORT OF INDEPENDENT…
Read attachment ↗ea029389901ex4-1.htm · 8-K · 2026-06-08
EX-4.1 4 ea029389901ex4-1.htm WARRANT AGREEMENT, DATED JUNE 2, 2026, BY AND BETWEEN THE COMPANY AND EFFICIENCY, AS WARRANT AGENT Exhibit 4.1 WARRANT AGREEMENT THIS WARRANT AGREEMENT (this “Agreement”) is made as of June 2, 2026 between Keystone Acquisition Corp., a Cayman Islands exempted company (the “Company”), and Efficiency INC., a Delaware corporation, as warrant agent (in such capacity, the “Warrant Agent”, and also referred to herein as the “Transfer Agent”). WHEREAS, the Company i…
Read attachment ↗ea029389901ex99-1.htm · 8-K · 2026-06-08
EX-99.1 11 ea029389901ex99-1.htm PRESS RELEASE, DATED JUNE 2, 2026 Exhibit 99.1 Keystone Acquisition Corp. Announces Pricing of $250 Million Initial Public Offering NEW YORK, NEW YORK, JUNE 2, 2026 (GLOBE NEWSWIRE) - Keystone Acquisition Corp. (Nasdaq: KEYY) (the “Company”) today announced the pricing of its initial public offering of 25,000,000 units at a public offering price of $10.00 per unit, for aggregate gross proceeds of $250,000,000. Each unit consists of one Class A ordinary sha…
Read attachment ↗ea029389901ex99-2.htm · 8-K · 2026-06-08
EX-99.2 12 ea029389901ex99-2.htm PRESS RELEASE, DATED JUNE 4, 2026 Exhibit 99.2 Keystone Acquisition Corp. Announces Closing of $287.5 Million Initial Public Offering Including Exercise of Underwriters’ Over-Allotment Option NEW YORK, NEW YORK, JUNE 4, 2026 (GLOBE NEWSWIRE) - Keystone Acquisition Corp. (Nasdaq: KEYYU) (the “Company”) today announced the closing of its initial public offering of 28,750,000 units, which includes 3,750,000 units issued pursuant to the exercise by the underwri…
Read attachment ↗ea027293705ex4-4.htm · S-1/A · 2026-05-28
EX-4.4 4 ea027293705ex4-4.htm FORM OF WARRANT AGREEMENT BETWEEN EFFICIENCY AND THE REGISTRANT Exhibit 4.4 WARRANT AGREEMENT THIS WARRANT AGREEMENT (this “Agreement”) is made as of [●], 2026 between Keystone Acquisition Corp., a Cayman Islands exempted company (the “Company”), and Efficiency INC., a Delaware corporation, as warrant agent (in such capacity, the “Warrant Agent”, and also referred to herein as the “Transfer Agent”). WHEREAS, the Company is engaged in an initial public offerin…
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