15 institutions reported holding $7.8M of HCM III ACQUISITION UNT (HCMAU) in SEC 13F filings for 2026-06-30. Largest institutional holders: TORONTO DOMINION BANK ($5.2M), HRT FINANCIAL LP ($547,000), Walleye Capital LLC ($522,000), OMERS ADMINISTRATION Corp ($522,000), SONA ASSET MANAGEMENT (US) LLC ($522,000). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | TORONTO DOMINION BANK | $5.2M | 501,862 | Added |
| 2 | HRT FINANCIAL LP | $547,000 | 52,406 | Trimmed |
| 3 | Walleye Capital LLC | $522,000 | 50,000 | Hold |
| 4 | OMERS ADMINISTRATION Corp | $522,000 | 50,000 | Hold |
| 5 | SONA ASSET MANAGEMENT (US) LLC | $522,000 | 50,000 | Hold |
| 6 | Westchester Capital Management, LLC | $261,000 | 25,000 | Hold |
| 7 | Clear Street Group Inc. | $115,800 | 11,092 | New |
| 8 | READYSTATE ASSET MANAGEMENT LP | $104,400 | 10,000 | Hold |
| 9 | FNY Investment Advisers, LLC | $2,000 | 200 | Hold |
| 10 | UBS Group AG | $1,639 | 157 | Trimmed |
| 11 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $10 | 1 | Hold |
| 12 | Polar Asset Management Partners Inc. | $0 | 0 | Exited |
| 13 | Magnetar Financial LLC | $0 | 0 | Exited |
| 14 | Waratah Capital Advisors Ltd. | $0 | 0 | Exited |
| 15 | Jain Global LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30