Institutional Holders (2026 Q1)
220 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in IRWD. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Sarissa Capital Management LP | 20.46% | 9,188,635 | $32.3M |
| 2 | CM Management, LLC | 1.03% | 350,000 | $1.2M |
| 3 | Armistice Capital, LLC | 0.94% | 15,028,000 | $52.7M |
| 4 | Range Financial Group LLC | 0.51% | 433,256 | $1.5M |
| 5 | Integrated Quantitative Investments LLC | 0.35% | 552,104 | $1.9M |
| 6 | Harvest Investment Services, LLC | 0.16% | 241,881 | $849K |
| 7 | Inspire Investing, LLC | 0.15% | 509,941 | $1.8M |
| 8 | Optimist Retirement Group LLC | 0.15% | 94,831 | $333K |
| 9 | Globeflex Capital L P | 0.14% | 259,809 | $912K |
| 10 | Hillsdale Investment Management Inc. | 0.12% | 1,236,628 | $4.3M |
| 11 | SmartHarvest Portfolios, LLC | 0.11% | 75,462 | $265K |
| 12 | nVerses Capital, LLC | 0.10% | 32,554 | $114K |
| 13 | Virtus Advisers, LLC | 0.09% | 58,000 | $204K |
| 14 | EntryPoint Capital, LLC | 0.09% | 86,874 | $305K |
| 15 | Virtus Investment Advisers, LLC | 0.07% | 76,169 | $267K |
| 16 | Jacobs Levy Equity Management, Inc | 0.05% | 3,632,477 | $12.7M |
| 17 | State of Wyoming | 0.05% | 128,175 | $450K |
| 18 | Legato Capital Management LLC | 0.05% | 156,059 | $548K |
| 19 | Scientech Research LLC | 0.05% | 15,917 | $56K |
| 20 | Renaissance Technologies LLC | 0.04% | 8,061,073 | $28.3M |
| 21 | Wedge Capital Management L L P/Nc | 0.04% | 540,492 | $1.9M |
| 22 | Bridgeway Capital Management, LLC | 0.03% | 440,493 | $1.5M |
| 23 | WINTON GROUP Ltd | 0.03% | 241,746 | $849K |
| 24 | MQS Management LLC | 0.03% | 11,451 | $40K |
| 25 | Essential Partners LLC | 0.03% | 22,102 | $78K |
| Investor | Ownership History |
% of Portfolio | Prev % | Rank | Conviction | Avg Buy Price | 13F Score™ 3Y / 7Y | Sell Timing | Shares | Mkt Value | Change | Change % | Source | Quarter | Filed |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|