HCM III Acquisition Corp.
HCMAU- Exchange
- Nasdaq
- Industry
- Blank Checks
- SEC CIK
- 0002069856
No open-market purchases or sales by HCM III Acquisition Corp. insiders were filed in the last 90 days; 11 institutions reported holding it in 13F filings for Q2 2026, worth $7.84M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in HCM III Acquisition Corp. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 14
- −3 vs. Q4 2025
- Shares held
- 1.34M
- −507.3K (−27.4%) vs. Q4 2025
- Total value
- $13.8M
- −$5.24M (−27.6%) vs. Q4 2025
- New holders
- 1
- 3 more added
- Sold out
- 4
- 2 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting HCMAU on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 11 | $7.84M |
| Q1 2026 | 14 | $13.8M |
| Q4 2025 | 18 | $19.0M |
| Q3 2025 | 38 | $83.8M |
| Q2 2025 | 0 | $0 |
| Q1 2025 | 0 | $0 |
| Q4 2024 | 0 | $0 |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding HCM III Acquisition Corp.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Polar Asset Management Partners Inc. | 500,000 | $5.13M | 0.12% | 00.0% | Unchanged |
| Toronto Dominion Bank | 430,525 | $4.41M | 0.01% | +79,146+22.5% | Added |
| Jain Global LLC | 98,791 | $1.02M | 0.01% | 00.0% | Unchanged |
| Waratah Capital Advisors Ltd. | 71,862 | $736.6K | 0.07% | −71,862−50.0% | Reduced |
| HRT Financial LP | 55,100 | $566.0K | 0.00% | +5,098+10.2% | Added |
| Walleye Capital LLC | 50,000 | $514.5K | 0.00% | 00.0% | Unchanged |
| Sona Asset Management (US) LLC | 50,000 | $512.5K | 0.02% | 00.0% | Unchanged |
| Omers Administration Corp | 50,000 | $512.5K | 0.00% | 00.0% | Unchanged |
| Westchester Capital Management, LLC | 25,000 | $257.3K | 0.01% | 00.0% | Unchanged |
| Readystate Asset Management LP | 10,000 | $102.9K | 0.01% | 00.0% | Unchanged |
| UBS Group AG | 233 | $2.39K | 0.00% | −286−55.1% | Reduced |
| FNY Investment Advisers, LLC | 200 | $2.00K | 0.00% | +100+100.0% | Added |
| Magnetar Financial LLC | 10 | $103 | 0.00% | +10 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 1 | $10 | 0.00% | 00.0% | Unchanged |
| Rivernorth Capital Management, LLC | 0 | $0 | 0.00% | −200,000−100.0% | Sold out |
| Clear Street Group Inc. | 0 | $0 | 0.00% | −126,649−100.0% | Sold out |
| Steadfast Capital Management LP | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| Wealthspring Capital LLC | 0 | $0 | 0.00% | −92,900−100.0% | Sold out |
| Omni Event Management Ltd | – | – | – | – | Not filed |