Ironwood Pharmaceuticals Inc
IRWD- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001446847
In the last 90 days, Ironwood Pharmaceuticals Inc insiders filed 0 open-market purchases and 1 sale; 212 institutions reported holding it in 13F filings for Q2 2026, worth $675.8M in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Ironwood Pharmaceuticals Inc as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 199
- +38 vs. Q3 2025
- Shares held
- 154.6M
- +6.08M (+4.1%) vs. Q3 2025
- Total value
- $520.2M
- +$325.4M (+167.1%) vs. Q3 2025
- New holders
- 56
- 64 more added
- Sold out
- 18
- 47 more reduced
5 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting IRWD on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 212 | $675.8M |
| Q1 2026 | 227 | $566.8M |
| Q4 2025 | 199 | $520.2M |
| Q3 2025 | 166 | $194.9M |
| Q2 2025 | 155 | $104.9M |
| Q1 2025 | 200 | $228.5M |
| Q4 2024 | 223 | $727.5M |
| Q3 2024 | 221 | $673.7M |
| Q2 2024 | 227 | $1.12B |
| Q1 2024 | 261 | $1.50B |
| Q4 2023 | 251 | $1.89B |
| Q3 2023 | 249 | $1.56B |
| Q2 2023 | 252 | $1.77B |
| Q1 2023 | 255 | $1.74B |
| Q4 2022 | 250 | $2.08B |
| Q3 2022 | 245 | $1.76B |
| Q2 2022 | 240 | $2.02B |
| Q1 2022 | 221 | $2.09B |
| Q4 2021 | 212 | $2.00B |
| Q3 2021 | 229 | $2.32B |
| Q2 2021 | 209 | $2.25B |
| Q1 2021 | 210 | $1.91B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Ironwood Pharmaceuticals Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Highbridge Capital Management LLC | 0 | $0 | 0.00% | −537,252−100.0% | Sold out |
| Royce & Associates LP | 0 | $0 | 0.00% | −300,619−100.0% | Sold out |
| Toroso Investments, LLC | 0 | $0 | 0.00% | −294,236−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −122,580−100.0% | Sold out |
| Siren, L.L.C. | 0 | $0 | 0.00% | −110,532−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −79,455−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −39,844−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −36,268−100.0% | Sold out |
| Brighton Jones LLC | 0 | $0 | 0.00% | −33,071−100.0% | Sold out |
| Requisite Capital Management, LLC | 0 | $0 | 0.00% | −31,748−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −20,739−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −16,118−100.0% | Sold out |
| Wedmont Private Capital | 0 | $0 | 0.00% | −11,651−100.0% | Sold out |
| Principal Financial Group Inc | 0 | $0 | 0.00% | −12,600−100.0% | Sold out |
| Allegiance Financial Group Advisory Services LLC | 0 | $0 | 0.00% | −10,108−100.0% | Sold out |
| Principal Securities, Inc. | 0 | $0 | 0.00% | −128−100.0% | Sold out |
| Bell Investment Advisors, Inc | 0 | $0 | 0.00% | −48−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | – | – | – | – | Not filed |
| Shell Asset Management Co | – | – | – | – | Not filed |
| CIBC Bancorp USA Inc. | – | – | – | – | Not filed |
| Point72 (DIFC) Ltd | – | – | – | – | Not filed |
| Point72 Asia (Singapore) Pte. Ltd. | – | – | – | – | Not filed |