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, Q3 2025
Institutional positions in Ironwood Pharmaceuticals Inc as of Sep 30, 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
- 166
- +12 vs. Q2 2025
- Shares held
- 148.7M
- +2.47M (+1.7%) vs. Q2 2025
- Total value
- $194.9M
- +$90.0M (+85.8%) vs. Q2 2025
- New holders
- 30
- 52 more added
- Sold out
- 18
- 48 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Ironwood Pharmaceuticals Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Creative Planning | 90,156 | $118.1K | 0.00% | −3,524−3.8% | Reduced |
| Dimensional Fund Advisors LP | 90,373 | $118.4K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 96,866 | $126.9K | 0.00% | −169,093−63.6% | Reduced |
| Wells Fargo & Company | 101,252 | $132.6K | 0.00% | +13,756+15.7% | Added |
| Mariner, LLC | 101,313 | $132.7K | 0.00% | −60,261−37.3% | Reduced |
| Cercano Management LLC | 101,378 | $132.8K | 0.01% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 102,014 | $133.6K | 0.00% | +28,660+39.1% | Added |
| Siren, L.L.C. | 110,532 | $144.8K | 0.01% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 112,157 | $146.9K | 0.00% | −1,127−1.0% | Reduced |
| Ameriprise Financial Inc | 119,969 | $157.2K | 0.00% | +71,842+149.3% | Added |
| Algert Global LLC | 122,580 | $160.6K | 0.00% | 00.0% | Unchanged |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 124,875 | $163.6K | 0.00% | −401,900−76.3% | Reduced |
| SRS Capital Advisors, Inc. | 143,392 | $187.8K | 0.00% | +143,392 | New |
| Bridgeway Capital Management, LLC | 150,000 | $196.5K | 0.00% | +75,000+100.0% | Added |
| Panagora Asset Management Inc | 158,962 | $208.2K | 0.00% | +112,393+241.3% | Added |
| Hennion & Walsh Asset Management, Inc. | 169,493 | $222.0K | 0.01% | −3,086−1.8% | Reduced |
| KLP Kapitalforvaltning AS | 174,200 | $228.2K | 0.00% | 00.0% | Unchanged |
| Wealth Enhancement Advisory Services, LLC | 154,388 | $234.7K | 0.00% | +28,928+23.1% | Added |
| Exchange Traded Concepts, LLC | 195,732 | $256.4K | 0.00% | −145,802−42.7% | Reduced |
| Alliancebernstein L.P. | 199,520 | $261.4K | 0.00% | 00.0% | Unchanged |
| Omers Administration Corp | 215,110 | $281.8K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 223,229 | $292.4K | 0.00% | +7,611+3.5% | Added |
| CWM, LLC | 232,790 | $305.0K | 0.00% | +50,016+27.4% | Added |
| Millennium Management LLC | 250,119 | $327.7K | 0.00% | +153,787+159.6% | Added |
| Toroso Investments, LLC | 294,236 | $385.4K | 0.00% | −15,843−5.1% | Reduced |
| Barclays PLC | 297,318 | $389.5K | 0.00% | −68,132−18.6% | Reduced |
| Royce & Associates LP | 300,619 | $393.8K | 0.00% | −205,441−40.6% | Reduced |
| Gsa Capital Partners LLP | 309,529 | $405.0K | 0.03% | −411,331−57.1% | Reduced |
| Russell Investments Group, Ltd. | 326,567 | $429.3K | 0.00% | +117,706+56.4% | Added |
| Cerity Partners LLC | 339,048 | $444.2K | 0.00% | −641−0.2% | Reduced |
| Robeco Institutional Asset Management B.V. | 342,998 | $449.3K | 0.00% | −27,336−7.4% | Reduced |
| State of Wyoming | 362,407 | $474.8K | 0.05% | +156,763+76.2% | Added |
| Invesco Ltd. | 366,532 | $480.2K | 0.00% | +44,385+13.8% | Added |
| D. E. Shaw & Co., Inc. | 372,270 | $487.7K | 0.00% | −1,297,369−77.7% | Reduced |
| Morgan Stanley | 477,100 | $625.0K | 0.00% | −16,934−3.4% | Reduced |
| Bank of New York Mellon Corp | 503,078 | $659.0K | 0.00% | +15,896+3.3% | Added |
| Highbridge Capital Management LLC | 537,252 | $703.8K | 0.04% | +537,252 | New |
| FMR LLC | 559,946 | $733.5K | 0.00% | +62,744+12.6% | Added |
| Citadel Advisors LLC | 644,046 | $843.7K | 0.00% | +334,774+108.2% | Added |
| Ieq Capital, LLC | 661,698 | $866.8K | 0.00% | +169,816+34.5% | Added |
| SEI Investments Co | 683,604 | $895.5K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 811,664 | $1.06M | 0.00% | +511,554+170.5% | Added |
| Goldman Sachs Group Inc | 1,084,367 | $1.42M | 0.00% | −360,363−24.9% | Reduced |
| Los Angeles Capital Management LLC | 1,130,052 | $1.48M | 0.01% | −81,103−6.7% | Reduced |
| Northern Trust Corp | 1,340,906 | $1.76M | 0.00% | +35,641+2.7% | Added |
| Deutsche Bank AG | 1,527,229 | $2.00M | 0.00% | +3,892+0.3% | Added |
| Jacobs Levy Equity Management, Inc | 1,920,530 | $2.52M | 0.01% | +445,484+30.2% | Added |
| Federated Hermes, Inc. | 2,157,104 | $2.83M | 0.00% | −19,934−0.9% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 2,161,818 | $2.83M | 0.01% | −45,130−2.0% | Reduced |
| Jane Street Group, LLC | 2,321,095 | $3.04M | 0.00% | +575,973+33.0% | Added |
| Two Sigma Investments, LP | 2,534,511 | $3.32M | 0.01% | −216,062−7.9% | Reduced |
| Qube Research & Technologies Ltd | 2,806,910 | $3.68M | 0.01% | −544,092−16.2% | Reduced |
| Marshall Wace, LLP | 3,144,139 | $4.12M | 0.00% | −849,418−21.3% | Reduced |
| State Street Corp | 3,156,307 | $4.13M | 0.00% | +48,588+1.6% | Added |
| Two Sigma Advisers, LP | 3,316,500 | $4.34M | 0.01% | −67,600−2.0% | Reduced |
| Geode Capital Management, LLC | 3,614,987 | $4.74M | 0.00% | +115,655+3.3% | Added |
| Charles Schwab Investment Management Inc | 4,917,336 | $6.44M | 0.00% | +1,253,060+34.2% | Added |
| AQR Capital Management LLC | 5,378,535 | $7.05M | 0.00% | −787,102−12.8% | Reduced |
| Kynam Capital Management, LP | 5,466,825 | $7.16M | 0.53% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 6,502,493 | $8.51M | 0.01% | −47,194−0.7% | Reduced |
| Renaissance Technologies LLC | 8,352,173 | $10.9M | 0.01% | −53,996−0.6% | Reduced |
| Bank of America Corp | 11,695,544 | $15.3M | 0.00% | +8,337,672+248.3% | Added |
| BlackRock, Inc. | 12,062,558 | $15.8M | 0.00% | +39,560+0.3% | Added |
| Sarissa Capital Management LP | 15,919,435 | $20.9M | 11.56% | 00.0% | Unchanged |
| Vanguard Group Inc | 16,072,006 | $21.1M | 0.00% | −130,123−0.8% | Reduced |
| Armistice Capital, LLC | 16,150,000 | $21.2M | 0.66% | 00.0% | Unchanged |
| LSV Asset Management | 0 | $0 | 0.00% | −2,750,200−100.0% | Sold out |
| Amundi | 0 | $0 | 0.00% | −755,536−100.0% | Sold out |
| CWM Advisors, LLC | 0 | $0 | 0.00% | −552,420−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −523,378−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | −234,257−100.0% | Sold out |
| Macquarie Group Ltd | 0 | $0 | 0.00% | −136,200−100.0% | Sold out |
| State Board of Administration of Florida Retirement System | 0 | $0 | 0.00% | −44,394−100.0% | Sold out |
| Teachers Retirement System of the State of Kentucky | 0 | $0 | 0.00% | −39,600−100.0% | Sold out |
| R Squared Ltd | 0 | $0 | 0.00% | −38,765−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −28,869−100.0% | Sold out |
| Prairiewood Capital, LLC | 0 | $0 | 0.00% | −24,691−100.0% | Sold out |
| UBS Asset Management Americas Inc | 0 | $0 | 0.00% | −21,643−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −17,743−100.0% | Sold out |
| First Affirmative Financial Network | 0 | $0 | 0.00% | −14,930−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −13,340−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −12,351−100.0% | Sold out |
| US Bancorp | 0 | $0 | 0.00% | −10,383−100.0% | Sold out |
| National Bank of Canada | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| CIBC World Markets Corp | – | – | – | – | Not filed |