COPL: Copley Acquisition Corp insider trading, 5% holders and institutional ownership

From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.

Insider trading

0 open-market buys totaling - and 0 sales totaling - in the last 180 days.

Activist and 5% holders

FiledWhatHolderStakeChangeFiling
2026-08-14New 13G stakeHighbridge Capital Management, LLC5.70%SEC
2026-08-13New 13G stakeMizuho Financial Group, Inc.5.70%SEC

Institutional ownership (Q2 2026)

37 institutions reported holding $161.72M of Copley Acquisition Corp on Form 13F (41 the quarter before). 1 opened a new position and 5 sold out. Shares held by institutions: +2%.

Largest holdersSharesValue
Karpus Management, Inc.1,510,297$15.75M
MIZUHO SECURITIES USA LLC1,318,494$13.64M
ARISTEIA CAPITAL, L.L.C.1,085,430$11.32M
BERKLEY W R CORP1,084,469$11.31M
HIGHBRIDGE CAPITAL MANAGEMENT LLC1,023,151$10.65M
Westchester Capital Management, LLC860,600$8.98M
Polar Asset Management Partners Inc.750,000$7.82M
TENOR CAPITAL MANAGEMENT Co., L.P.750,000$7.82M
D. E. Shaw & Co., Inc.600,000$6.26M
AQR Arbitrage LLC584,870$6.10M

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