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ACGC · ACP Holdings Acquisition Corp. · Shareholders & Ownership

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$10.06 At close · Oct 23
Market Cap
$292.75M
Shares
29.10M
Volume · Oct 23 101K Avg daily vol (3M) 58.96K

Every disclosed holder of ACGC in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns ACGC

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions
Holder group Shares % Out
Institutional (13F) 28,388,894 97.55%
Insiders (Forms 3, 4, 5) 0 0.00%
13D/G-only blocks 0 0.00%
Remaining 711,573 2.45%
Registered funds (N-PORT, not summed) 679,413 2.33%

Shares outstanding: 29,100,467, the issuer's latest cover-page count restated onto today's split basis.

Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of ACGC

# Holder Shares
1
ADAGE CAPITAL PARTNERS GP, L.L.C.
13F CIK 1165408 · Registered investment adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
2,700,000
1.1
Adage Capital Management, L.P.
13G CIK 1535978 · Investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
1,800,000
2
Polar Asset Management Partners Inc.
13F CIK 1326389 · Registered investment adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
2,407,725
2.1
Polar Asset Management Partners Inc.
13G CIK 1326389 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
1,605,150
3
Magnetar Financial LLC
13F CIK 1352851 · Registered investment adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
2,400,000
3.1
Magnetar Financial LLC
13G CIK 1352851 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
1,600,000
4
METEORA CAPITAL, LLC
13F CIK 1905106 · Investment adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
1,666,834
5
Alberta Investment Management Corp
13F CIK 1463559 · Non-US institution · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
1,470,000
6
GLAZER CAPITAL, LLC
13F CIK 1076809 · Registered investment adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
1,401,333
7
Karpus Management, Inc.
13F CIK 1048703 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,348,625
8
WOLVERINE ASSET MANAGEMENT LLC
13F CIK 1279891 · Registered investment adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
983,847
9
Lineage Point Capital LP
13F CIK 2093311 · Investment adviser · Jun 30, 2026
Classes ACGCU, ACGCW, carried, not yet filed for the newest quarter
934,800
10
Harraden Circle Investments, LLC
13F CIK 1910592 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
916,496
11
AQR Arbitrage LLC
13F CIK 1167456 · Registered investment adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
876,663
12
Linden Advisors LP
13F CIK 1279396 · Registered investment adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
749,999
13
Sculptor Capital LP
13F CIK 1054587 · Registered investment adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
656,602
14
BNP PARIBAS ARBITRAGE, SA
13F CIK 1166588 · Non-US institution · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
628,701
15
L1 Global Manager Pty Ltd
13F CIK 1878742 · Unknown · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
600,000
16
Paloma Partners Management Co
13F CIK 1103882 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
578,500
17
LMR Partners LLP
13F CIK 1578621 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
500,000
18
Mallozzi Andrew Emilio
Insider CIK 2128324 · Apr 8, 2026
Director, CEO and Chairman of the Board, 10% Owner, issuer-wide, not summed
435,000
19
Union Street Sponsor, LLC
Insider CIK 2128426 · Apr 8, 2026
10% Owner, issuer-wide, not summed
435,000
20
683 Capital Management, LLC
13F CIK 1404574 · Registered investment adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
375,000
21
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS
13F CIK 1083190 · Unknown · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
375,000
22
Crossingbridge Advisors, LLC
13F CIK 1770024 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
375,000
23
Destinations Global Fixed Income Opportunities Fund
Fund S000056108 · Registered fund · Aug 31, 2026
Brinker Capital Destinations Trust, not summed
375,000
24
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
13F CIK 1535845 · Non-US institution · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
375,000
25
TWO SIGMA INVESTMENTS, LP
13F CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
362,500
26
ARISTEIA CAPITAL, L.L.C.
13F CIK 1080171 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
347,308
27
BOOTHBAY FUND MANAGEMENT, LLC
13F CIK 1549230 · Registered investment adviser · Jun 30, 2026
Classes ACGC, ACGCU, ACGCW, carried, not yet filed for the newest quarter
337,582
28
Decagon Asset Management LLP
13F CIK 1950677 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
331,299
29
HIGHBRIDGE CAPITAL MANAGEMENT LLC
13F CIK 919185 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
317,705
30
First Trust Capital Management L.P.
13F CIK 1604488 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
300,000
31
GABELLI & Co INVESTMENT ADVISERS, INC.
13F CIK 932724 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
275,000
32
Periscope Capital Inc.
13F CIK 1695320 · Exempt reporting adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
275,000
33
First Trust Merger Arbitrage Fund
Fund S000048195 · Registered fund · Jun 30, 2026
INVESTMENT MANAGERS SERIES TRUST II, not summed
257,564
34
D. E. Shaw & Co., Inc.
13F CIK 1009207 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
250,000
35
PICTON MAHONEY ASSET MANAGEMENT
13F CIK 1539041 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
250,000
36
Clear Street Group Inc.
13F CIK 1881567 · Unknown · Jun 30, 2026
Classes ACGC, ACGCU, ACGCW, carried, not yet filed for the newest quarter
228,249
37
K2 PRINCIPAL FUND, L.P.
13F CIK 1461790 · Unknown · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
225,000
38
WHITEBOX ADVISORS LLC
13F CIK 1257391 · Registered investment adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
225,000
39
Parallax Volatility Advisers, L.P.
13F CIK 1521001 · Registered investment adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
215,124
40
TORONTO DOMINION BANK
13F CIK 947263 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
200,000
41
Westchester Capital Management, LLC
13F CIK 1512805 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
200,000
42
BERKLEY W R CORP
13F CIK 11544 · Insurance company · Jun 30, 2026
carried, not yet filed for the newest quarter
198,860
43
DLD Asset Management, LP
13F CIK 1578299 · Registered investment adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
150,000
44
Hudson Bay Capital Management LP
13F CIK 1393825 · Registered investment adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
150,000
45
RIVERNORTH CAPITAL MANAGEMENT, LLC
13F CIK 1447578 · Registered investment adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
150,000
46
StoneX Group Inc.
13F CIK 913760 · Unknown · Jun 30, 2026
Classes ACGC, ACGCU, carried, not yet filed for the newest quarter
150,000
47
TENOR CAPITAL MANAGEMENT Co., L.P.
13F CIK 1346554 · Registered investment adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
150,000
48
GRITSTONE ASSET MANAGEMENT LLC
13F CIK 1964236 · Registered investment adviser · Sep 30, 2026
Classes ACGC, ACGCW
149,999
49
Radcliffe Capital Management, L.P.
13F CIK 1218275 · Registered investment adviser · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
149,025
50
Warberg Asset Management LLC
13F CIK 1597506 · Unknown · Jun 30, 2026
Classes ACGC, ACGCW, carried, not yet filed for the newest quarter
112,805

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 59 holders

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Key facts CIK 2111542 CUSIP G0113G101 13F (30d) 2 filings 2 filers