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, Q4 2025
Institutional positions in HCM III Acquisition Corp. as of Dec 31, 2025. 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
- 18
- −19 vs. Q3 2025
- Shares held
- 1.85M
- −6.25M (−77.1%) vs. Q3 2025
- Total value
- $19.0M
- −$64.5M (−77.2%) vs. Q3 2025
- New holders
- 1
- 5 more added
- Sold out
- 20
- 4 more reduced
1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding HCM III Acquisition Corp.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Polar Asset Management Partners Inc. | 500,000 | $5.14M | 0.10% | 00.0% | Unchanged |
| Toronto Dominion Bank | 351,379 | $3.61M | 0.01% | +1,379+0.4% | Added |
| Rivernorth Capital Management, LLC | 200,000 | $2.06M | 0.10% | 00.0% | Unchanged |
| Waratah Capital Advisors Ltd. | 143,724 | $1.48M | 0.11% | +560+0.4% | Added |
| Clear Street Group Inc. | 126,649 | $1.30M | 0.01% | +65,752+108.0% | Added |
| Steadfast Capital Management LP | 100,000 | $1.03M | 0.02% | 00.0% | Unchanged |
| Jain Global LLC | 98,791 | $1.01M | 0.01% | −1,209−1.2% | Reduced |
| Wealthspring Capital LLC | 92,900 | $955.5K | 0.23% | −7,100−7.1% | Reduced |
| Sona Asset Management (US) LLC | 50,000 | $514.3K | 0.02% | 00.0% | Unchanged |
| Omers Administration Corp | 50,000 | $512.0K | 0.00% | 00.0% | Unchanged |
| Walleye Capital LLC | 50,000 | $512.0K | 0.00% | 00.0% | Unchanged |
| HRT Financial LP | 50,002 | $512.0K | 0.00% | +1,385+2.8% | Added |
| Westchester Capital Management, LLC | 25,000 | $256.0K | 0.01% | 00.0% | Unchanged |
| Readystate Asset Management LP | 10,000 | $102.4K | 0.00% | 00.0% | Unchanged |
| Omni Event Management Ltd | 3,080 | $31.7K | 0.00% | +3,080 | New |
| UBS Group AG | 519 | $5.34K | 0.00% | +155+42.6% | Added |
| FNY Investment Advisers, LLC | 100 | $1.00K | 0.00% | −682−87.2% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 1 | $10 | 0.00% | −999,999−100.0% | Reduced |
| MMCAP International Inc. SPC | 0 | $0 | 0.00% | −1,000,000−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −1,000,000−100.0% | Sold out |
| Mint Tower Capital Management B.V. | 0 | $0 | 0.00% | −750,000−100.0% | Sold out |
| Alberta Investment Management Corp | 0 | $0 | 0.00% | −550,000−100.0% | Sold out |
| Periscope Capital Inc. | 0 | $0 | 0.00% | −500,000−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −429,000−100.0% | Sold out |
| CNH Partners LLC | 0 | $0 | 0.00% | −379,400−100.0% | Sold out |
| BNP Paribas Arbitrage, SA | 0 | $0 | 0.00% | −120,600−100.0% | Sold out |
| Shaolin Capital Management LLC | 0 | $0 | 0.00% | −120,417−100.0% | Sold out |
| Moore Capital Management, LP | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| HGC Investment Management Inc. | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| Driehaus Capital Management LLC | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Gritstone Asset Management LLC | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Galaxy Group Investments LLC | 0 | $0 | 0.00% | −44,900−100.0% | Sold out |
| Heights Capital Management, Inc | 0 | $0 | 0.00% | −36,855−100.0% | Sold out |
| BCK Capital Management LP | 0 | $0 | 0.00% | −32,459−100.0% | Sold out |
| Aristeia Capital LLC | 0 | $0 | 0.00% | −25,000−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −25,000−100.0% | Sold out |
| PenderFund Capital Management Ltd. | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Picton Mahoney Asset Management | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Atw Spac Management LLC | – | – | – | – | Not filed |