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RoundupGUACBerto Acquisition Corp. II

PTAC Liquidates on IPO Day; Four SPACs Price $642M

By SpacDesk Newsroom·SpacDesk Newsroom·2026-05-19 at 7:00am ET·confidence: high

Patriot Acquisition Corp./CI announced liquidation hours after pricing a $206M IPO, marking an atypical same-day reversal. Three additional SPACs priced $436M in equity, and two blank-checks announced mergers, continuing steady deal flow despite the PTAC anomaly.

Liquidations

Patriot Acquisition Corp./CI (PTAC), sponsored by Patriot Acquisition Sponsor LLC, announced liquidation on the same trading day it priced a $206M IPO. The decision constitutes an extraordinary reversal: the blank-check vehicle completed primary market pricing only to announce wind-down hours later. Such same-day liquidations are atypical for the SPAC market and typically reflect material sponsor-level concerns or regulatory-driven decisions made between IPO pricing and formal announcement. PTAC's $206M capital raise will not be deployed toward a target acquisition.

IPO Pricings

Four SPACs raised $642M in combined primary offerings. Berto Acquisition Corp. II (GUAC), sponsored by Berto Acquisition Sponsor II LLC, led the day at $300M, representing the cohort's largest single raise. Research Alliance Corp III (RACC), backed by Research Alliance Holdings III LLC, deployed $58M of capital. Amanat Acquisition Corp. (AMAN), under Amanat Sponsor Holdings LLC, priced $78M. Including PTAC's $206M, the four-vehicle cohort spans varied sponsor platforms and capital scales, with deal sizes distributed across mid-market to lower-mid-market brackets. All four offerings priced equity, warrants, and trust units per standard SPAC IPO structures.

Deal Announcements

Two blank-check companies announced mergers. Iron Horse Acquisition II Corp. (IRHOU) announced a combination targeting Electra, while Cartesian Growth Corp III (CGCT) announced a transaction with Lionano SE Inc. Both combinations remain in early announcement stages, pending standard SPAC stockholder votes and regulatory approvals. Valuation metrics, sponsor commitments, and closing timelines were not disclosed.

roundupday=2026-05-18