HCM II Acquisition Corp. - 29IMSRWPreferred / convertible
13F holders, Q1 2026 (March 31)26holders −1
5new positions
6sold out
$2.70avg. 13F price*
At the end of Q1 2026, 26 institutions reported holding HCM II Acquisition Corp. - 29 (IMSRW) in their 13F filings, down 1 from Q4 2025. 5 opened new positions and 6 sold out. The largest holders were LMR Partners LLP ($8.7M), Hudson Bay Capital Management LP ($3.4M) and PEAK6 LLC ($3.1M).
- Company
- HCM II Acquisition Corp. - 29
- Filed as
- TERRESTRIAL ENERGY INC (Q1 2026)
- CUSIP
- 881454110
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 5 | $2.5M |
| Exits | 6 | $509K |
All 13F filers, Q4 2025 → Q1 2026: 2,576,762 shares bought and 2,239,085 shares sold, net +337,677 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 26 holders
| LMR Partners LLP | — | Add +17.4% | 3,347,510 | $8.7M |
| Hudson Bay Capital Management LP | — | Add +426.7% | 1,303,050 | $3.4M |
| PEAK6 LLC | — | No change | 1,186,146 | $3.1M |
| Cantor Fitzgerald, L. P. | — | Reduce -57.9% | 1,083,051 | $2.8M |
| Boothbay Fund Management, LLC | — | New | 390,000 | $2.3M |
| Caption Management, LLC | — | Add +7.3% | 865,372 | $2.2M |
| Magnetar Financial LLC | — | Reduce -13.8% | 780,000 | $2.0M |
| Aristeia Capital, L.L.C. | — | Add +263.2% | 735,393 | $1.9M |
| Morgan Stanley | — | Reduce -18.0% | 280,768 | $727K |
| Linden Advisors LP | — | No change | 194,560 | $500K |
| Arosa Capital Management LP | — | Reduce -36.4% | 175,000 | $453K |
| Walleye Capital LLC | — | Reduce -9.5% | 139,986 | $363K |
| Periscope Capital Inc. | — | No change | 152,500 | $293K |
| CastleKnight Management LP | — | No change | 73,200 | $190K |
| Saba Capital Management, L.P. | — | Reduce -13.2% | 65,681 | $170K |
| Alberta Investment Management Corp | — | No change | 50,000 | $130K |
| Wolverine Asset Management LLC | — | Reduce -31.9% | 48,722 | $126K |
| Balyasny Asset Management L.P. | — | Reduce -81.0% | 40,743 | $105K |
| Virtu Financial LLC | — | New | 28,421 | $74K |
| Stoic Point Capital Management LLC | — | No change | 13,402 | $35K |
| Clear Street Group Inc. | — | No change | 10,000 | $26K |
| Advisory Services Network, LLC | — | New | 6,050 | $16K |
| Rockefeller Capital Management L.P. | — | New | 6,000 | $16K |
| Federation des caisses Desjardins du Quebec | — | New | 2,000 | $5K |
| Osaic Holdings, Inc. | — | No change | 600 | $2K |
| Summit Securities Group LLC | — | No change | 1 | $3 |
"% of holder's portfolio" is IMSRW's weight in each manager's 13F, not the share of HCM II Acquisition Corp. - 29 the manager owns.