KEYY Keystone Acquisition Corp.

NEUTRAL Impact: 5/10 EFFECT
Horizon days Filed Jun 3, 2026 Processed 9d 22h ago SEC 9999999995-26-001846
IPO/offering going effective

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Executive Summary

Keystone Acquisition Corp.'s S-1 registration statement for its $250M SPAC IPO was declared effective by the SEC on June 2, 2026. The company can now proceed to price and list 25,000,000 units at $10.00 per unit on Nasdaq, with each unit consisting of one Class A ordinary share and one-half warrant. This marks the formal launch of the SPAC's IPO, after which it will have up to 24 months to identify and complete an initial business combination.

Actionable Insight

The SPAC IPO is now live — expect pricing and first trading day within 1-2 business days. Monitor for the pricing 8-K and subsequent trading in units (KEYYU) and later in the separated shares (KEYY) and warrants (KEYYW). The SPAC has 24 months from the effective date to announce a target; no substantive discussions with any target have been initiated as of the filing.

Key Facts

  • S-1 declared effective on June 2, 2026 (SEC File No. 333-295539)
  • IPO of 25,000,000 units at $10.00/unit for total gross proceeds of $250,000,000
  • Each unit consists of one Class A ordinary share and one-half of one redeemable warrant (exercise price $11.50/share)
  • Underwriters have a 45-day option to purchase up to an additional 3,750,000 units for over-allotments
  • Net proceeds before expenses to the company: $235,000,000 (after $15,000,000 underwriting discounts and commissions)
  • Units expected to list on Nasdaq under symbol KEYYU; Class A ordinary shares under KEYY and warrants under KEYYW
  • Company is a blank check company targeting high-growth sectors: energy transition, critical minerals, shipbuilding, semiconductors, digital infrastructure, and digital assets
  • Public shareholders will have redemption rights in connection with any initial business combination

Financial Impact

IPO gross proceeds of $250,000,000; net proceeds of $235,000,000 before expenses

cashshares outstandingwarrants outstanding

Risk Factors

  • Blank check company with no operating history or identified acquisition target
  • Must complete a business combination within 24 months or liquidate and return trust proceeds to shareholders
  • Warrant overhang: each whole warrant exercisable at $11.50/share post-business combination
  • No guarantee of Nasdaq listing approval for units, shares, or warrants

Documents Analyzed

This report is based on 3 SEC documents filed with EDGAR.

DocumentAccession Number
EFFECT Filing (Primary)9999999995-26-001846
Document: 9999999995-26-001846-index.html9999999995-26-001846
Document: 9999999995-26-001846.txt9999999995-26-001846
9 reports for KEYY
Performance horizon
Filters
Rows
Reports for KEYY — sortable, filterable
Type Now
Jun 5, 2026
8d ago
Press Release
NEUTRAL ★ 5/10
awaiting T+20
Jun 3, 2026
9d ago
424B4
NEUTRAL ★ 5/10
awaiting T+20
Jun 3, 2026
10d ago
EFFECT
NEUTRAL ★ 5/10
awaiting T+20
Jun 3, 2026
10d ago
3
NEUTRAL ★ 2/10
awaiting T+20
Jun 3, 2026
10d ago
3
NEUTRAL ★ 2/10
awaiting T+20
Jun 3, 2026
10d ago
3
NEUTRAL ★ 2/10
awaiting T+20
Jun 3, 2026
10d ago
3
NEUTRAL ★ 1/10
awaiting T+20
Jun 2, 2026
10d ago
Press Release
NEUTRAL ★ 4/10
awaiting T+20
May 28, 2026
15d ago
S-1/A
NEUTRAL ★ 5/10
awaiting T+20
Showing 9 of 9

US Market Status

Market Closed — Opens Mon (52h 25m)

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