Who owns HCM IV Acquisition Corp.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of HACQ from SEC Form 13F filings across 51 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, 51 institutions disclosed 22.6M shares of HCM IV Acquisition Corp. worth $227.1M — about 78.4% of shares outstanding; the largest disclosed holder is Polar Asset Management Partners Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
51
13F holders
$227.1M
value, 2026 filers
78.4%
of shares outstanding (22.6M sh)
51
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 HACQ's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Polar Asset Management Partners Inc.NEW | 1.4M | $14.0M | 0.2% | 4.9% | new |
| 2 | MMCAP International Inc. SPCNEW | 1.4M | $14.0M | 1.2% | 4.9% | new |
| 3 | AQR Arbitrage LLCNEW | 1.3M | $13.0M | 0.2% | 4.5% | new |
| 4 | Linden Advisors LPNEW | 1.3M | $12.6M | 0.1% | 4.3% | new |
| 5 | HIGHBRIDGE CAPITAL MANAGEMENT LLCNEW | 1.0M | $10.0M | 0.2% | 3.5% | new |
| 6 | Magnetar Financial LLCNEW | 1.0M | $10.1M | 0.1% | 3.5% | new |
| 7 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUNDNEW | 1.0M | $10.1M | 0.0% | 3.5% | new |
| 8 | Alberta Investment Management CorpNEW | 1.0M | $10.1M | 0.1% | 3.5% | new |
| 9 | MILLENNIUM MANAGEMENT LLCNEW | 978,000 | $9.8M | 0.0% | 3.4% | new |
| 10 | GLAZER CAPITAL, LLCNEW | 884,839 | $8.9M | 0.2% | 3.1% | new |
| 11 | Hudson Bay Capital Management LPNEW | 816,000 | $8.2M | 0.0% | 2.8% | new |
| 12 | Saba Capital Management, L.P.NEW | 640,000 | $6.4M | 0.2% | 2.2% | new |
| 13 | BNP PARIBAS FINANCIAL MARKETSNEW | 619,056 | $6.2M | 0.0% | 2.1% | new |
| 14 | Governors Lane LPNEW | 616,587 | $6.2M | 0.5% | 2.1% | new |
| 15 | TENOR CAPITAL MANAGEMENT Co., L.P.NEW | 600,000 | $6.0M | 0.1% | 2.1% | new |
| 16 | Kryger Capital LLCNEW | 591,449 | $5.9M | 0.3% | 2% | new |
| 17 | Mint Tower Capital Management B.V.NEW | 500,000 | $5.0M | 0.6% | 1.7% | new |
| 18 | First Trust Capital Management L.P.NEW | 500,000 | $5.0M | 0.3% | 1.7% | new |
| 19 | PICTON MAHONEY ASSET MANAGEMENTNEW | 499,996 | $5.0M | 0.0% | 1.7% | new |
| 20 | TWO SIGMA INVESTMENTS, LPNEW | 453,124 | $4.5M | 0.0% | 1.6% | new |
| 21 | Radcliffe Capital Management, L.P.NEW | 452,832 | $4.5M | 0.3% | 1.6% | new |
| 22 | WHITEBOX ADVISORS LLCNEW | 450,000 | $4.5M | 0.1% | 1.6% | new |
| 23 | Verition Fund Management LLCNEW | 447,114 | $4.5M | 0.0% | 1.5% | new |
| 24 | WOLVERINE ASSET MANAGEMENT LLCNEW | 377,999 | $3.8M | 0.0% | 1.3% | new |
| 25 | Periscope Capital Inc.NEW | 305,686 | $3.1M | 0.3% | 1.1% | 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.