Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

Copley Acquisition Corp

CIK 0002045473COPLCOPL-UNCOPL-WT· quarter ending 2026-06-30

Shares outstanding

22,181,401

as of 2026-08-14 · 10-Q cover page, filed 2026-08-17

Held by 13F filers

16,095,090

across share classes — see % per class below

Holders

-4 vs 2026-03-31 · 1 new, 5 exited

Value

$167.8M

shares +2.4% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-17, as of 2026-08-14)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	CUSIP
Common Classs A	—	16,431,401	—	—
Commons Class B	—	5,750,000	—	—
Not matched to a class			16,095,090	—	G24243100

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
G24243100	ORD SHS CL A	37	16,095,090	—	—	$167.8M	—	13DG	holders →
G24243118	UNIT 99/99/9999not common	4	1,184,198	—	—	$12.4M	—	prefix	holders →
G24243126	*W EXP 99/99/999not common	31	6,700,860	—	—	$1.1M	—	prefix	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings.

Top holders (37 of 37 · G24243100)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	Karpus Management, Inc.	1,510,297	—	$15.8M	-16,530 (-1.1%)
2	MIZUHO SECURITIES USA LLC	1,318,494	—	$13.6M	+1,020,000 (+341.7%)
3	ARISTEIA CAPITAL, L.L.C.	1,085,430	—	$11.3M	—
4	BERKLEY W R CORP	1,084,469	—	$11.3M	+56,845 (+5.5%)
5	HIGHBRIDGE CAPITAL MANAGEMENT LLC	1,023,151	—	$10.7M	+946,918 (+1242.1%)
6	Westchester Capital Management, LLC	860,600	—	$9.0M	—
7	TENOR CAPITAL MANAGEMENT Co., L.P.	750,000	—	$7.8M	—
8	Polar Asset Management Partners Inc.	750,000	—	$7.8M	—
9	D. E. Shaw & Co., Inc.	600,000	—	$6.3M	—
10	AQR Arbitrage LLC	584,870	—	$6.1M	+1,700 (+0.3%)
11	GLAZER CAPITAL, LLC	579,831	—	$6.0M	-10,118 (-1.7%)
12	Radcliffe Capital Management, L.P.	572,786	—	$6.0M	—
13	Magnetar Financial LLC	547,400	—	$5.7M	—
14	Hudson Bay Capital Management LP	500,000	—	$5.2M	—
15	MANGROVE PARTNERS IM, LLC	450,000	—	$4.7M	—
16	WOLVERINE ASSET MANAGEMENT LLC	408,876	—	$4.3M	+40,900 (+11.1%)
17	RIVERNORTH CAPITAL MANAGEMENT, LLC	399,664	—	$4.2M	-92 (-0.0%)
18	Verition Fund Management LLC	349,398	—	$3.6M	-230,381 (-39.7%)
19	Periscope Capital Inc.	325,000	—	$3.4M	-25,000 (-7.1%)
20	HEIGHTS CAPITAL MANAGEMENT, INC	300,000	—	$3.1M	—
21	WHITEBOX ADVISORS LLC	300,000	—	$3.1M	—
22	Wealthspring Capital LLC	234,732	—	$2.4M	+9,500 (+4.2%)
23	Shaolin Capital Management LLC	219,645	—	$2.3M	-290,355 (-56.9%)
24	GOLDMAN SACHS GROUP INC	206,806	—	$2.2M	—
25	Context Capital Management, LLC	200,000	—	$2.1M	—
26	SONA ASSET MANAGEMENT (US) LLC	135,811	—	$1.4M	—
27	TORONTO DOMINION BANK	125,000	—	$1.3M	-25,000 (-16.7%)
28	Schonfeld Strategic Advisors LLC	104,138	—	$1.1M	-355,459 (-77.3%)
29	BOOTHBAY FUND MANAGEMENT, LLC	102,500	—	$1.1M	—
30	L1 Global Manager Pty Ltd	100,000	—	$1.0M	—
31	O'Connor Alternative Investments LLC	100,000	—	$1.0M	—
32	JPMORGAN CHASE & CO	100,000	—	$1.0M	NEW
33	MILLENNIUM MANAGEMENT LLC	80,500	—	$840K	+15 (+0.0%)
34	Dakota Wealth Management	25,125	—	$262K	—
35	BNP PARIBAS FINANCIAL MARKETS	23,502	—	$245K	—
36	Clear Street Group Inc.	20,271	—	$211K	-82,007 (-80.2%)
37	Warberg Asset Management LLC	16,794	—	$175K	-606 (-3.5%)

Exited since 2026-03-31 (5 filers; largest 5 shown)

METEORA CAPITAL, LLC	−344,983
Logan Stone Capital, LLC	−189,723
DLD Asset Management, LP	−100,294
Bulldog Investors, LLP	−100,000
ABC ARBITRAGE SA	−25,000

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
Highbridge Capital Management, LLC	SCHEDULE 13G	2026-08-14	2026-06-30	1,023,151	5.7%
Mizuho Financial Group, Inc.	SCHEDULE 13G	2026-08-13	2026-06-30	1,020,000	5.7%
Berkley Insurance Company	SCHEDULE 13G/A	2026-05-07	2026-03-31	1,027,624	5.7%
W.R. Berkley Corporation	SCHEDULE 13G/A	2026-05-07	2026-03-31	1,027,624	5.7%
Copley Acquisition Sponsors, LLC	SCHEDULE 13G	2026-02-17	2025-06-30	6,305,893	26.57%
Tok Li	SCHEDULE 13G	2026-02-17	2025-06-30	6,305,893	26.57%
Bank of Montreal	SCHEDULE 13G/A	2026-02-13	2025-12-31	0	0%
BANK OF MONTREAL HOLDING INC.	SCHEDULE 13G/A	2026-02-13	2025-12-31	0	0%
BMO NESBITT BURNS INC.	SCHEDULE 13G/A	2026-02-13	2025-12-31	0	0%
KARPUS MANAGEMENT, INC.	SCHEDULE 13G	2025-11-14	2025-09-30	1,359,828	5.73%
Aristeia Capital, L.L.C.	SCHEDULE 13G	2025-08-14	2025-06-30	1,085,430	6.23%
W. R. Berkley Corporation	SCHEDULE 13G	2025-08-08	2025-06-30	928,219	5.2%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.