Who Owns IRIS ACQUISITION CORP II (IRAB)? -- Institutional Holders (2026-06-30)
44 institutions reported holding $148.6M of IRIS ACQUISITION CORP II (IRAB) in SEC 13F filings for 2026-06-30. Largest institutional holders: ADAGE CAPITAL PARTNERS GP, L.L.C. ($13.4M), ARISTEIA CAPITAL, L.L.C. ($11.5M), TENOR CAPITAL MANAGEMENT Co., L.P. ($9.9M), SONA ASSET MANAGEMENT (US) LLC ($8.4M), HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND ($7.9M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | ADAGE CAPITAL PARTNERS GP, L.L.C. | $13.4M | 1.4M | Hold |
| 2 | ARISTEIA CAPITAL, L.L.C. | $11.5M | 1.2M | New |
| 3 | TENOR CAPITAL MANAGEMENT Co., L.P. | $9.9M | 1.0M | Hold |
| 4 | SONA ASSET MANAGEMENT (US) LLC | $8.4M | 850,000 | Hold |
| 5 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $7.9M | 800,000 | Hold |
| 6 | Linden Advisors LP | $7.9M | 800,000 | Hold |
| 7 | Magnetar Financial LLC | $6.0M | 600,000 | New |
| 8 | MMCAP International Inc. SPC | $6.0M | 600,000 | New |
| 9 | AQR Arbitrage LLC | $5.8M | 584,964 | Added |
| 10 | BNP PARIBAS FINANCIAL MARKETS | $5.4M | 546,532 | Hold |
| 11 | MILLENNIUM MANAGEMENT LLC | $4.2M | 425,000 | New |
| 12 | D. E. Shaw & Co., Inc. | $4.2M | 420,601 | Added |
| 13 | Alberta Investment Management Corp | $4.0M | 400,000 | New |
| 14 | First Trust Capital Management L.P. | $4.0M | 399,998 | Hold |
| 15 | WHITEBOX ADVISORS LLC | $3.7M | 375,200 | Hold |
| 16 | Crossingbridge Advisors, LLC | $3.5M | 350,000 | New |
| 17 | Radcliffe Capital Management, L.P. | $3.0M | 299,570 | Hold |
| 18 | TWO SIGMA INVESTMENTS, LP | $2.7M | 271,875 | Hold |
| 19 | Centiva Capital, LP | $2.5M | 250,700 | Hold |
| 20 | HGC Investment Management Inc. | $2.5M | 250,000 | Hold |
| 21 | Context Capital Management, LLC | $2.5M | 250,000 | Hold |
| 22 | Periscope Capital Inc. | $2.4M | 241,000 | Hold |
| 23 | COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | $2.3M | 229,662 | Added |
| 24 | Cable Car Capital, LP | $2.2M | 225,000 | New |
| 25 | Lineage Point Capital LP | $2.2M | 220,000 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30