Vault-13

ACP HOLDINGS ACQUISITION COR ACGC

CL A · Common Stock · CUSIP G0113G101

43 institutional holders
17,402,66717.4m shares reported held*
$173.0mreported value*

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $9.94. Options: 1 managers hold calls ($2.8m notional), 0 hold puts (—).

Trends to Q2 2026

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$1m$2m$3mQ3 25 calls: $0Q3 25 puts: $0Q3 25P/C —Q4 25 calls: $0Q4 25 puts: $0Q4 25P/C —Q1 26 calls: $0Q1 26 puts: $0Q1 26P/C —Q2 26 calls: $2.8mQ2 26 puts: $0Q2 26P/C 0.00
Numbers
QuarterCallsPutsP/C
Q3 2025$0$0—
Q4 2025$0$0—
Q1 2026$0$0—
Q2 2026$2.8m$00.00

Biggest buyers

ADAGE CAPITAL PARTNERS GP, L.L.C. New +1,800,000+1.8m
Polar Asset Management Partners Inc. New +1,605,150+1.6m
Magnetar Financial LLC New +1,600,000+1.6m
Karpus Management, Inc. New +1,348,625+1.3m
GLAZER CAPITAL, LLC New +1,000,000+1.0m
Alberta Investment Management Corp New +980,000+980.0k
WOLVERINE ASSET MANAGEMENT LLC New +907,002+907.0k
Meteora Capital, LLC New +730,027+730.0k
AQR Arbitrage LLC New +584,442+584.4k
Paloma Partners Management Co New +578,500+578.5k

Biggest sellers

None

Biggest calls

Paloma Partners Management Co New $2.8m286.4k shares

Biggest puts

None

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Adage Capital Management, L.P. 13G · institution new · filed 2026-08-12 8.2% new 1.8m≈ $17.9m 2026-08-12
Polar Asset Management Partners Inc. 13G · institution new · filed 2026-08-14 7.3% new 1.6m≈ $16.0m 2026-08-14
Magnetar Financial LLC 13G · institution new · filed 2026-08-13 7.3% new 1.6m≈ $15.9m 2026-08-13

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
101Q4 24: 0 buyingQ4 24: 0 sellingQ1 25: 0 buyingQ1 25: 0 sellingQ1 25Q2 25: 0 buyingQ2 25: 0 sellingQ3 25: 0 buyingQ3 25: 0 sellingQ3 25Q4 25: 0 buyingQ4 25: 0 sellingQ1 26: 0 buyingQ1 26: 0 sellingQ1 26Q2 26: 1 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 0 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20240—0——
Q1 20250—0——
Q2 20250—0——
Q3 20250—0——
Q4 20250—0——
Q1 20260—0——
Q2 20261—0——
Q3 20260—0——
DateInsiderTradeSharesPrice ValueTheir holding
2026-04-08 Mallozzi Andrew Emilio CEO and Chairman of the Board, director · See footnote Bought 435,000 — —435.0k shares new
2026-04-08 Union Street Sponsor, LLC 10% owner Bought 435,000 — —435.0k shares new

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.03% of their portfolio Boston, MA 1,800,0001.8m $17.9m $17.9m 0.03% New
2 Polar Asset Management Partners Inc. 0.29% of their portfolio TORONTO, A6 1,605,1501.6m $16.0m $16.0m 0.29% New
3 Magnetar Financial LLC 0.15% of their portfolio EVANSTON, IL 1,600,0001.6m $15.9m $15.9m 0.15% New
4 Karpus Management, Inc. 0.39% of their portfolio Pittsford, NY 1,348,6251.3m $13.4m $13.4m 0.39% New
5 GLAZER CAPITAL, LLC 0.25% of their portfolio New York, NY 1,000,0001.0m $9.9m $9.9m 0.25% New
6 Alberta Investment Management Corp 0.06% of their portfolio EDMONTON, A0 980,000980.0k $9.7m $9.7m 0.06% New
7 WOLVERINE ASSET MANAGEMENT LLC 0.12% of their portfolio CHICAGO, IL 907,002907.0k $9.0m $9.0m 0.12% New
8 Meteora Capital, LLC 0.60% of their portfolio Boca Raton, FL 730,027730.0k $7.3m $7.3m 0.60% New
9 AQR Arbitrage LLC 0.08% of their portfolio Greenwich, CT 584,442584.4k $5.8m $5.8m 0.08% New
10 Paloma Partners Management Co 1.37% of their portfolio GREENWICH, CT 578,500578.5k $5.8m $5.8m 1.37% New
11 Linden Advisors LP 0.03% of their portfolio New York, NY 500,000500.0k $5.0m $5.0m 0.03% New
12 Sculptor Capital LP 0.04% of their portfolio New York, NY 421,068421.1k $4.2m $4.2m 0.04% New
13 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 419,134419.1k $4.2m $4.2m 0.00% New
14 L1 Global Manager Pty Ltd 3.22% of their portfolio Melbourne, C3 400,000400.0k $4.0m $4.0m 3.22% New
15 Crossingbridge Advisors, LLC 0.66% of their portfolio PLEASANTVILLE, NY 375,000375.0k $3.7m $3.7m 0.66% New
16 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 362,500362.5k $3.6m $3.6m 0.00% New
17 HIGHBRIDGE CAPITAL MANAGEMENT LLC 0.11% of their portfolio NEW YORK, NY 317,705317.7k $3.2m $3.2m 0.11% New
18 First Trust Capital Management L.P. 0.17% of their portfolio CHICAGO, IL 300,000300.0k $3.0m $3.0m 0.17% New
19 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 250,000250.0k $2.5m $2.5m 0.00% New
20 COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 0.01% of their portfolio HARRISBURG, PA 250,000250.0k $2.5m $2.5m 0.01% New
21 683 Capital Management, LLC 0.23% of their portfolio NEW YORK, NY 250,000250.0k $2.5m $2.5m 0.23% New
22 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.00% of their portfolio TORONTO, A6 250,000250.0k $2.5m $2.5m 0.00% New
23 Westchester Capital Management, LLC 0.10% of their portfolio VALHALLA, NY 200,000200.0k $2.0m $2.0m 0.10% New
24 Periscope Capital Inc. 0.32% of their portfolio Toronto, A6 200,000200.0k $2.0m $2.0m 0.32% New
25 BERKLEY W R CORP 0.10% of their portfolio Greenwich, CT 198,860198.9k $2.0m $2.0m 0.10% New
26 BOOTHBAY FUND MANAGEMENT, LLC 0.03% of their portfolio NEW YORK, NY 162,613162.6k $1.6m $1.6m 0.03% New
27 WHITEBOX ADVISORS LLC 0.02% of their portfolio MINNEAPOLIS, MN 150,000150.0k $1.5m $1.5m 0.02% New
28 Parallax Volatility Advisers, L.P. 0.05% of their portfolio San Francisco, CA 126,499126.5k $1.3m $1.3m 0.05% New
29 TENOR CAPITAL MANAGEMENT Co., L.P. 0.01% of their portfolio NEW YORK, NY 100,000100.0k $994.0k $994.0k 0.01% New
30 Hudson Bay Capital Management LP 0.00% of their portfolio STAMFORD, CT 100,000100.0k $994.0k $994.0k 0.00% New
31 RIVERNORTH CAPITAL MANAGEMENT, LLC 0.05% of their portfolio WEST PALM BEACH, FL 100,000100.0k $999.0k $999.0k 0.05% New
32 K2 PRINCIPAL FUND, L.P. 0.09% of their portfolio TORONTO, A6 100,000100.0k $994.0k $994.0k 0.09% New
33 DLD Asset Management, LP 0.08% of their portfolio NEW YORK, NY 100,000100.0k $994.0k $994.0k 0.08% New
34 DELTEC ASSET MANAGEMENT LLC 0.15% of their portfolio New York, NY 99,90099.9k $993.0k $993.0k 0.15% New
35 Radcliffe Capital Management, L.P. 0.08% of their portfolio BALA CYNWYD, PA 99,35199.4k $987.5k $987.5k 0.08% New
36 Clear Street Group Inc. 0.00% of their portfolio NEW YORK, NY 82,36082.4k $818.7k $818.7k 0.00% New
37 Kepos Capital LP 1.02% of their portfolio NEW YORK, NY 75,00075.0k $746.0k $746.0k 1.02% New
38 Warberg Asset Management LLC 0.22% of their portfolio WINNETKA, IL 74,17274.2k $737.3k $737.3k 0.22% New
39 HEIGHTS CAPITAL MANAGEMENT, INC 0.14% of their portfolio SAN FRANCISCO, CA 60,00060.0k $596.4k $596.4k 0.14% New
40 Schonfeld Strategic Advisors LLC 0.00% of their portfolio NEW YORK, NY 51,85751.9k $515.5k $515.5k 0.00% New
41 StoneX Group Inc. 0.02% of their portfolio NEW YORK, NY 50,00050.0k $497.0k $497.0k 0.02% New
42 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 22,90222.9k $228.3k $228.3k 0.00% New
43 ABC ARBITRAGE SA 0.02% of their portfolio PARIS, I0 20,00020.0k $198.8k $198.8k 0.02% New