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, Q2 2021
Institutional positions in Ironwood Pharmaceuticals Inc as of Jun 30, 2021. 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
- 209
- +1 vs. Q1 2021
- Shares held
- 174.5M
- +3.51M (+2.1%) vs. Q1 2021
- Total value
- $2.25B
- +$334.2M (+17.5%) vs. Q1 2021
- New holders
- 32
- 75 more added
- Sold out
- 31
- 66 more reduced
2 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2021: 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, Q2 2021
Shares, value and share of portfolio for each institution holding Ironwood Pharmaceuticals Inc; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Putnam Investments LLC | 4,737,415 | $61.0M | 0.09% | +1,388,883+41.5% | Added |
| Westfield Capital Management Co LP | 6,258,873 | $80.6M | 0.48% | +875,223+16.3% | Added |
| State Street Corp | 6,805,669 | $87.6M | 0.00% | −574,357−7.8% | Reduced |
| Camber Capital Management LP | 7,500,000 | $96.5M | 3.79% | 00.0% | Unchanged |
| BlackRock Inc. | 11,550,907 | $148.7M | 0.00% | −1,797,657−13.5% | Reduced |
| Vanguard Group Inc | 13,897,179 | $178.9M | 0.00% | −1,800,541−11.5% | Reduced |
| Sarissa Capital Management LP | 16,390,000 | $210.9M | 16.77% | 00.0% | Unchanged |
| Brown Capital Management LLC | 18,484,759 | $237.9M | 1.80% | −1,685,367−8.4% | Reduced |
| Wellington Management Group LLP | 21,094,651 | $271.5M | 0.05% | −94,654−0.4% | Reduced |
| Park West Asset Management LLC | 0 | $0 | 0.00% | −1,112,383−100.0% | Sold out |
| Jefferies Group LLC | 0 | $0 | 0.00% | −394,640−100.0% | Sold out |
| Alps Advisors Inc | 0 | $0 | 0.00% | −291,213−100.0% | Sold out |
| California Public Employees Retirement System | 0 | $0 | 0.00% | −291,024−100.0% | Sold out |
| Junson Asset Management (Hong Kong) Ltd | 0 | $0 | 0.00% | −155,277−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −127,473−100.0% | Sold out |
| HighTower Advisors, LLC | 0 | $0 | 0.00% | −114,480−100.0% | Sold out |
| Mackay Shields LLC | 0 | $0 | 0.00% | −112,519−100.0% | Sold out |
| Davide Leone & Partners Investment Co Ltd. | 0 | $0 | 0.00% | −87,677−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −52,735−100.0% | Sold out |
| First Trust Advisors LP | 0 | $0 | 0.00% | −47,780−100.0% | Sold out |
| Athanor Capital, LP | 0 | $0 | 0.00% | −45,833−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −40,418−100.0% | Sold out |
| Cannon Global Investment Management, LLC | 0 | $0 | 0.00% | −32,000−100.0% | Sold out |
| Nomura Holdings Inc | 0 | $0 | 0.00% | −23,713−100.0% | Sold out |
| Sawgrass Asset Management LLC | 0 | $0 | 0.00% | −20,345−100.0% | Sold out |
| First Republic Investment Management, Inc. | 0 | $0 | 0.00% | −19,613−100.0% | Sold out |
| Belvedere Trading LLC | 0 | $0 | 0.00% | −18,750−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −15,531−100.0% | Sold out |
| Cruiser Capital Advisors, LLC | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| Cim Investment Mangement Inc | 0 | $0 | 0.00% | −14,708−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −14,627−100.0% | Sold out |
| Quantitative Systematic Strategies LLC | 0 | $0 | 0.00% | −14,623−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −13,698−100.0% | Sold out |
| Maven Securities LTD | 0 | $0 | 0.00% | −7,500−100.0% | Sold out |
| Pacer Advisors, Inc. | 0 | $0 | 0.00% | −6,889−100.0% | Sold out |
| Sowell Financial Services LLC | 0 | $0 | 0.00% | −1,755−100.0% | Sold out |
| Wolverine Asset Management LLC | 0 | $0 | 0.00% | −1,339−100.0% | Sold out |
| MV Capital Management, Inc. | 0 | $0 | 0.00% | −712−100.0% | Sold out |
| International Assets Investment Management, LLC | 0 | $0 | 0.00% | −63−100.0% | Sold out |
| Meridian Wealth Partners, LLC | 0 | $0 | 0.00% | −35−100.0% | Sold out |
| Sullivan, Bruyette, Speros & Blaney, LLC | – | – | – | – | Not filed |
| E Fund Management Co., Ltd. | – | – | – | – | Not filed |