IRAB · Company research
Iris Acquisition Corp II (IRAB): Ownership & Institutional Holders
Reported institutional positions. Filing dates and sources matter.
RESEARCH CONTEXT
Understand the numbers
Reported institutional positions. Filing dates and sources matter. Use period, currency, units and source fields when interpreting values.
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Ownership & Institutional Holders data
Database-backed records only
| holder name | cik | period end | shares held | market value | ownership percent | shares change | shares change percent | filing date | data source |
|---|---|---|---|---|---|---|---|---|---|
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 1165408 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1350000 | 13405500 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | 919185 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 183101 | 45775 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| HEIGHTS CAPITAL MANAGEMENT, INC | 1081698 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 185000 | 1837050 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Kepos Capital LP | 1512020 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 100000 | 993 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Hudson Bay Capital Management LP | 1393825 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 98938 | 982454 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| CSS LLC/IL | 1103646 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 25000 | 248250 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| WOLVERINE ASSET MANAGEMENT LLC | 1279891 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 65047 | 645917 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 1346554 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1000000 | 9930000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| ARISTEIA CAPITAL, L.L.C. | 1080171 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1159828 | 11517092 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Cable Car Capital, LP | 1699575 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 225000 | 2234250 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| MIZUHO SECURITIES USA LLC | 812291 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 50000 | 492500 | — | — | — | Jul 28, 2026 | SEC_13F_DATASET |
| BERKLEY W R CORP | 11544 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 198960 | 1988605 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| PICTON MAHONEY ASSET MANAGEMENT | 1539041 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 175000 | 1737750 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Magnetar Financial LLC | 1352851 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 600000 | 5997000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Virtu Financial LLC | 1533964 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 14870 | 148 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| DLD Asset Management, LP | 1578299 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 18000 | 4500 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 1447578 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 200000 | 1986000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Decagon Asset Management LLP | 1950677 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 353187 | 88297 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| AQR Arbitrage LLC | 1167456 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 584964 | 5802843 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Clear Street Group Inc. | 1881567 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 30756 | 305407 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Mint Tower Capital Management B.V. | 1666606 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 150000 | 1490 | — | — | — | Aug 18, 2026 | SEC_13F_DATASET |
| TWO SIGMA INVESTMENTS, LP | 1179392 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 271875 | 2697000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| First Trust Capital Management L.P. | 1604488 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 399998 | 3971980 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Shaolin Capital Management LLC | 1766806 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 200779 | 1993735 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Polar Asset Management Partners Inc. | 1326389 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 100000 | 993000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Alberta Investment Management Corp | 1463559 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 400000 | 3972000 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| Radcliffe Capital Management, L.P. | 1218275 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 299570 | 2974730 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| ROYAL BANK OF CANADA | 1000275 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5100 | 1000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| BNP PARIBAS FINANCIAL MARKETS | 1166588 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 546532 | 5427063 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 1083190 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 229662 | 2280544 | — | — | — | Jul 17, 2026 | SEC_13F_DATASET |
| Lepercq De Neuflize Asset Management LLC | 1854423 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 100000 | 25000 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| HRT FINANCIAL LP | 1475597 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 25009 | 251 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| MMCAP International Inc. SPC | 1304857 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 600000 | 5958000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| MOORE CAPITAL MANAGEMENT, LP | 1448574 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 50000 | 496500 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Context Capital Management, LLC | 1301396 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 250000 | 2482500 | — | — | — | Jul 23, 2026 | SEC_13F_DATASET |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 1535845 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 800000 | 7944000 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| W.R. Berkley Corporation | 11544 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 198960 | 1988605000 | — | — | — | Aug 14, 2026 | SEC_13F_HR |
| Periscope Capital Inc. | 1695320 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 241000 | 2393130 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Centiva Capital, LP | 1692507 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 250700 | 2489451 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| GLAZER CAPITAL, LLC | 1076809 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 206321 | 2049 | — | — | — | Aug 17, 2026 | SEC_13F_DATASET |
| JPMORGAN CHASE & CO | 19617 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 40000 | 402000 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| MILLENNIUM MANAGEMENT LLC | 1273087 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 425000 | 4220250 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| WHITEBOX ADVISORS LLC | 1257391 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 375200 | 3725736 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Schonfeld Strategic Advisors LLC | 1665241 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 15000 | 148950 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| SONA ASSET MANAGEMENT (US) LLC | 1856405 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 850000 | 8440500 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| D. E. Shaw & Co., Inc. | 1009207 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 420601 | 4176568 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| TORONTO DOMINION BANK | 947263 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2520 | 630 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Verition Fund Management LLC | 1454027 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 168000 | 42000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Lineage Point Capital LP | 2093311 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 220000 | 2184600 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| LMR Partners LLP | 1578621 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 750000 | 7537500 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
Informational research only, not financial advice. Forecasts are uncertain and can be wrong.