HCM III ACQUISITION CORP. (HCMA) — Institutional Holders, Q2 2026
66 institutional investment managers reported a HCMA position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $240.7M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
HCMA in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- MIZUHO SECURITIES USAAdded · +250,000 sh+$2.1M
- Polar Asset Management PartnersAdded · +166,666 sh+$1.4M
- MILLENNIUM MANAGEMENTAdded · +120,600 sh+$993.0K
- O'Connor Alternative InvestmentsNew · +100,000 sh+$823.4K
- GLAZER CAPITALAdded · +87,104 sh+$717.2K
Biggest sellers
- HEALTHCARE OF ONTARIO PENSION PLAN FUNDTrimmed · -300,000 sh-$2.5M
- TORONTO DOMINION BANKTrimmed · -252,941 sh-$2.1M
- Saba Capital Management, L.P.Trimmed · -200,000 sh-$1.6M
- Shaolin Capital ManagementTrimmed · -108,710 sh-$895.1K
- Virtu FinancialTrimmed · -93,352 sh-$768.7K
HCMA 13F holders ranked 1–66 of 66
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | METEORA CAPITAL#1 · 2,108,483 sh | 2,108,483 | $17.5M | 1.45% | +1.5% |
| 2 | LINDEN ADVISORS#2 · 1,533,333 sh | 1,533,333 | $12.6M | 0.07% | 0.0% |
| 3 | LMR Partners LLP#3 · 1,400,000 sh | 1,400,000 | $11.0M | 0.04% | 0.0% |
| 4 | Verition Fund Management#4 · 1,369,411 sh | 1,369,411 | $10.7M | 0.02% | +4.1% |
| 5 | Governors Lane#5 · 1,234,284 sh | 1,234,284 | $10.5M | 0.88% | +3.2% |
| 6 | MMCAP International SPC#6 · 1,333,333 sh | 1,333,333 | $10.5M | 0.89% | 0.0% |
| 7 | TENOR CAPITAL MANAGEMENT , L.P.#7 · 1,333,333 sh | 1,333,333 | $10.5M | 0.15% | 0.0% |
| 8 | HIGHBRIDGE CAPITAL MANAGEMENT#8 · 1,001,849 sh | 1,001,849 | $10.3M | 0.25% | 0.0% |
| 9 | Magnetar Financial#9 · 999,990 sh | 999,990 | $10.3M | 0.09% | 0.0% |
| 10 | TWO SIGMA INVESTMENTS#10 · 797,500 sh | 797,500 | $8.2M | <0.01% | 0.0% |
| 11 | Saba Capital Management, L.P.#11 · 1,082,983 sh | 1,082,983 | $7.9M | 0.20% | -15.6% |
| 12 | Mint Tower Capital Management B.V.#12 · 1,000,000 sh | 1,000,000 | $7.9M | 0.90% | 0.0% |
| 13 | HEALTHCARE OF ONTARIO PENSION PLAN FUND#13 · 1,033,333 sh | 1,033,333 | $7.4M | 0.01% | -22.5% |
| 14 | Radcliffe Capital Management, L.P.#14 · 895,069 sh | 895,069 | $7.4M | 0.56% | 0.0% |
| 15 | HGC Investment Management#15 · 866,666 sh | 866,666 | $6.3M | 1.25% | 0.0% |
| 16 | Alberta Investment Management#16 · 733,333 sh | 733,333 | $5.8M | 0.03% | 0.0% |
| 17 | MILLENNIUM MANAGEMENT#17 · 561,350 sh | 561,350 | $5.8M | <0.01% | +27.4% |
| 18 | MIZUHO SECURITIES USA#18 · 550,000 sh | 550,000 | $5.6M | 0.05% | +83.3% |
| 19 | TORONTO DOMINION BANK#19 · 801,762 sh | 801,762 | $5.4M | <0.01% | -24.0% |
| 20 | GLAZER CAPITAL#20 · 547,510 sh | 547,510 | $5.4M | 0.13% | +18.9% |
| 21 | Polar Asset Management Partners#21 · 666,666 sh | 666,666 | $5.2M | 0.09% | +33.3% |
| 22 | PEAK6#22 · 666,665 sh | 666,665 | $5.2M | 0.01% | 0.0% |
| 23 | PICTON MAHONEY ASSET MANAGEMENT#23 · 666,660 sh | 666,660 | $5.2M | 0.04% | 0.0% |
| 24 | PERISCOPE CAPITAL#24 · 641,600 sh | 641,600 | $4.8M | 0.42% | 0.0% |
| 25 | BERKLEY W R#25 · 388,407 sh | 388,407 | $4.0M | 0.19% | 0.0% |
| 26 | AQR Arbitrage#26 · 505,848 sh | 505,848 | $4.0M | 0.06% | 0.0% |
| 27 | BOOTHBAY FUND MANAGEMENT#27 · 386,469 sh | 386,469 | $4.0M | 0.05% | -2.5% |
| 28 | BlueCrest Capital Management Ltd#28 · 350,000 sh | 350,000 | $3.6M | 0.12% | 0.0% |
| 29 | K2 PRINCIPAL FUND, L.P.#29 · 253,936 sh | 253,936 | $2.6M | 0.19% | +27.0% |
| 30 | DLD Asset Management#30 · 250,000 sh | 250,000 | $2.6M | 0.17% | 0.0% |
| 31 | RIVERNORTH CAPITAL MANAGEMENT#31 · 266,661 sh | 266,661 | $2.1M | 0.10% | 0.0% |
| 32 | COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS#32 · 199,998 sh | 199,998 | $2.1M | 0.01% | 0.0% |
| 33 | Clear Street Group#33 · 279,627 sh | 279,627 | $2.0M | <0.01% | -18.5% |
| 34 | Shaolin Capital Management#34 · 441,290 sh | 441,290 | $1.6M | 0.08% | -19.8% |
| 35 | BNP PARIBAS FINANCIAL MARKETS#35 · 160,800 sh | 160,800 | $1.3M | <0.01% | 0.0% |
| 36 | HBK INVESTMENTS L P#36 · 133,336 sh | 133,336 | $1.0M | 0.01% | 0.0% |
| 37 | MOORE CAPITAL MANAGEMENT#37 · 133,334 sh | 133,334 | $1.0M | 0.02% | 0.0% |
| 38 | WHITEBOX ADVISORS#38 · 133,333 sh | 133,333 | $1.0M | 0.01% | 0.0% |
| 39 | Jain Global#39 · 131,721 sh | 131,721 | $1.0M | <0.01% | +33.3% |
| 40 | Galaxy Digital#40 · 114,900 sh | 114,900 | $1.0M | 0.06% | 0.0% |
| 41 | O'Connor Alternative Investments#41 · 100,000 sh | 100,000 | $1.0M | 0.07% | New |
| 42 | WOLVERINE ASSET MANAGEMENT#42 · 85,665 sh | 85,665 | $792.4K | <0.01% | -51.6% |
| 43 | READYSTATE ASSET MANAGEMENT#43 · 63,603 sh | 63,603 | $655.4K | <0.01% | 0.0% |
| 44 | HRT FINANCIAL#44 · 52,406 sh | 52,406 | $547.0K | <0.01% | -4.9% |
| 45 | Walleye Capital#45 · 67,025 sh | 67,025 | $533.1K | <0.01% | +2.6% |
| 46 | GRITSTONE ASSET MANAGEMENT#46 · 66,666 sh | 66,666 | $524.8K | — | 0.0% |
| 47 | OMERS ADMINISTRATION#47 · 50,000 sh | 50,000 | $522.0K | <0.01% | 0.0% |
| 48 | SONA ASSET MANAGEMENT (US)#48 · 50,000 sh | 50,000 | $522.0K | 0.01% | 0.0% |
| 49 | Hudson Bay Capital Management#49 · 50,000 sh | 50,000 | $514.0K | <0.01% | 0.0% |
| 50 | ARISTEIA CAPITAL, L.L.C.#50 · 45,047 sh | 45,047 | $463.1K | <0.01% | +80.2% |
| 51 | Harraden Circle Investments#51 · 530,942 sh | 530,942 | $345.1K | 0.04% | +54.5% |
| 52 | DAVIDSON KEMPNER CAPITAL MANAGEMENT#52 · 33,333 sh | 33,333 | $262.4K | <0.01% | 0.0% |
| 53 | Westchester Capital Management#53 · 25,000 sh | 25,000 | $261.0K | 0.01% | 0.0% |
| 54 | Ghisallo Capital Management#54 · 25,000 sh | 25,000 | $257.0K | <0.01% | 0.0% |
| 55 | JPMORGAN CHASE#55 · 24,813 sh | 24,813 | $255.1K | 0.00% | 0.0% |
| 56 | ABC ARBITRAGE SA#56 · 20,000 sh | 20,000 | $205.6K | — | 0.0% |
| 57 | PenderFund Capital Management Ltd.#57 · 19,600 sh | 19,600 | $201.5K | 0.03% | +172.2% |
| 58 | Rangeley Capital#58 · 14,046 sh | 14,046 | $144.4K | 0.13% | +12.1% |
| 59 | Virtu Financial#59 · 10,763 sh | 10,763 | $111.0K | <0.01% | -89.7% |
| 60 | MORGAN STANLEY#60 · 100,045 sh | 100,045 | $65.5K | 0.00% | 0.0% |
| 61 | Weiss Asset Management#61 · 60,391 sh | 60,391 | $39.3K | <0.01% | 0.0% |
| 62 | Lineage Point Capital#62 · 25,000 sh | 25,000 | $16.3K | <0.01% | 0.0% |
| 63 | FNY Investment Advisers#63 · 1,200 sh | 1,200 | $12.0K | — | -85.4% |
| 64 | UBS Group AG#64 · 157 sh | 157 | $1.6K | 0.00% | -99.8% |
| 65 | ROYAL BANK OF CANADA#65 · 1,000 sh | 1,000 | $1.0K | 0.00% | 0.0% |
| 66 | Context Capital Management#66 · 666,666 sh | 666,666 | — | — | 0.0% |
Funds that sold out of HCMA in Q2 2026 (1)
Held HCMA at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Waratah Capital Advisors Ltd.71,862 sh | 71,862 | $736.6K |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.