Who owns ACP Holdings Acquisition Corp.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of ACGC from SEC Form 13F filings across 43 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 43 institutions disclosed 17.4M shares of ACP Holdings Acquisition Corp. worth $173.0M — about 79.6% of shares outstanding; the largest disclosed holder is ADAGE CAPITAL PARTNERS GP, L.L.C.. Source: SEC Form 13F filings, parsed by EvidInvest.
43
13F holders
$173.0M
value, 2026 filers
79.6%
of shares outstanding (17.4M sh)
43
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of ACGC's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | ADAGE CAPITAL PARTNERS GP, L.L.C.NEW | 1.8M | $17.9M | 0.0% | 8.2% | new |
| 2 | Polar Asset Management Partners Inc.NEW | 1.6M | $16.0M | 0.3% | 7.3% | new |
| 3 | Magnetar Financial LLCNEW | 1.6M | $15.9M | 0.1% | 7.3% | new |
| 4 | Karpus Management, Inc.NEW | 1.3M | $13.4M | 0.4% | 6.2% | new |
| 5 | GLAZER CAPITAL, LLCNEW | 1.0M | $9.9M | 0.2% | 4.6% | new |
| 6 | Alberta Investment Management CorpNEW | 980,000 | $9.7M | 0.1% | 4.5% | new |
| 7 | WOLVERINE ASSET MANAGEMENT LLCNEW | 907,002 | $9.0M | 0.1% | 4.1% | new |
| 8 | Meteora Capital, LLCNEW | 730,027 | $7.3M | 0.6% | 3.3% | new |
| 9 | AQR Arbitrage LLCNEW | 584,442 | $5.8M | 0.1% | 2.7% | new |
| 10 | Paloma Partners Management CoNEW | 578,500 | $5.8M | 0.4% | 2.6% | new |
| 11 | Linden Advisors LPNEW | 500,000 | $5.0M | 0.0% | 2.3% | new |
| 12 | Sculptor Capital LPNEW | 421,068 | $4.2M | 0.0% | 1.9% | new |
| 13 | BNP PARIBAS FINANCIAL MARKETSNEW | 419,134 | $4.2M | 0.0% | 1.9% | new |
| 14 | L1 Global Manager Pty LtdNEW | 400,000 | $4.0M | 2.8% | 1.8% | new |
| 15 | Crossingbridge Advisors, LLCNEW | 375,000 | $3.7M | 0.7% | 1.7% | new |
| 16 | TWO SIGMA INVESTMENTS, LPNEW | 362,500 | $3.6M | 0.0% | 1.7% | new |
| 17 | HIGHBRIDGE CAPITAL MANAGEMENT LLCNEW | 317,705 | $3.2M | 0.1% | 1.5% | new |
| 18 | First Trust Capital Management L.P.NEW | 300,000 | $3.0M | 0.2% | 1.4% | new |
| 19 | 683 Capital Management, LLCNEW | 250,000 | $2.5M | 0.1% | 1.1% | new |
| 20 | D. E. Shaw & Co., Inc.NEW | 250,000 | $2.5M | 0.0% | 1.1% | new |
| 21 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUNDNEW | 250,000 | $2.5M | 0.0% | 1.1% | new |
| 22 | COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYSNEW | 250,000 | $2.5M | 0.0% | 1.1% | new |
| 23 | Periscope Capital Inc.NEW | 200,000 | $2.0M | 0.2% | 0.9% | new |
| 24 | Westchester Capital Management, LLCNEW | 200,000 | $2.0M | 0.1% | 0.9% | new |
| 25 | BERKLEY W R CORPNEW | 198,860 | $2.0M | 0.1% | 0.9% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.