HCM III AcquisitionHCMAU
13F holders, Q1 2026 (March 31)14holders −4
1new positions
4sold out
$10.26avg. 13F price*
At the end of Q1 2026, 14 institutions reported holding HCM III Acquisition Corp. (HCMAU) in their 13F filings, down 4 from Q4 2025. 1 opened new positions and 4 sold out. The largest holders were Polar Asset Management Partners Inc. ($5.1M), Toronto Dominion Bank ($4.4M) and Jain Global LLC ($1.0M).
- Company
- HCM III Acquisition Corp.
- CUSIP
- G4365E129
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 1 | $103 |
| Exits | 4 | $5.3M |
All 13F filers, Q4 2025 → Q1 2026: 84,354 shares bought and 591,697 shares sold, net −507,343 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 14 holders
| Polar Asset Management Partners Inc. | 0.17% | No change | 500,000 | $5.1M |
| Toronto Dominion Bank | 0.01% | Add +22.5% | 430,525 | $4.4M |
| Jain Global LLC | 0.01% | No change | 98,791 | $1.0M |
| Waratah Capital Advisors Ltd. | 0.07% | Reduce -50.0% | 71,862 | $737K |
| HRT Financial LP | 0.00% | Add +10.2% | 55,100 | $566K |
| Walleye Capital LLC | 0.00% | No change | 50,000 | $515K |
| Sona Asset Management (us) LLC | 0.03% | No change | 50,000 | $513K |
| OMERS ADMINISTRATION Corp | 0.00% | No change | 50,000 | $513K |
| Westchester Capital Management, LLC | 0.01% | No change | 25,000 | $257K |
| Readystate Asset Management LP | 0.01% | No change | 10,000 | $103K |
| UBS Group AG | 0.00% | Reduce -55.1% | 233 | $2K |
| FNY Investment Advisers, LLC | 0.00% | Add +100.0% | 200 | $2K |
| Magnetar Financial LLC | 0.00% | New | 10 | $103 |
| Healthcare of Ontario Pension Plan Trust Fund | 0.00% | No change | 1 | $10 |
"% of holder's portfolio" is HCMAU's weight in each manager's 13F, not the share of HCM III Acquisition Corp. the manager owns.