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, Q1 2024
Institutional positions in Ironwood Pharmaceuticals Inc as of Mar 31, 2024. 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
- 261
- +11 vs. Q4 2023
- Shares held
- 172.4M
- +7.41M (+4.5%) vs. Q4 2023
- Total value
- $1.50B
- −$385.6M (−20.4%) vs. Q4 2023
- New holders
- 54
- 85 more added
- Sold out
- 43
- 84 more reduced
1 institution that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2023: 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, Q1 2024
Shares, value and share of portfolio for each institution holding Ironwood Pharmaceuticals Inc; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 24,157,768 | $210.4M | 0.00% | −1,822,540−7.0% | Reduced |
| Vanguard Group Inc | 19,521,366 | $170.0M | 0.00% | +3,487,821+21.8% | Added |
| Sarissa Capital Management LP | 16,390,000 | $142.8M | 24.97% | 00.0% | Unchanged |
| State Street Corp | 13,917,111 | $121.2M | 0.01% | +2,385,023+20.7% | Added |
| Pacer Advisors, Inc. | 7,206,187 | $62.8M | 0.14% | +7,206,187 | New |
| Renaissance Technologies LLC | 7,099,801 | $61.8M | 0.10% | +503,903+7.6% | Added |
| LSV Asset Management | 6,151,001 | $53.6M | 0.11% | −631,100−9.3% | Reduced |
| Armistice Capital, LLC | 5,400,000 | $47.0M | 1.25% | −300,000−5.3% | Reduced |
| Jacobs Levy Equity Management, Inc | 4,235,580 | $36.9M | 0.16% | +1,226,377+40.8% | Added |
| Braidwell LP | 3,489,843 | $30.4M | 0.98% | +3,489,843 | New |
| Geode Capital Management, LLC | 3,147,158 | $27.4M | 0.00% | +66,695+2.2% | Added |
| UBS Group AG | 3,027,715 | $26.4M | 0.01% | +2,582,407+579.9% | Added |
| Man Group plc | 2,985,313 | $26.0M | 0.07% | +1,559,924+109.4% | Added |
| Brown Capital Management LLC | 2,700,705 | $23.5M | 0.42% | −1,008,726−27.2% | Reduced |
| Morgan Stanley | 2,678,116 | $23.3M | 0.00% | +530,298+24.7% | Added |
| Nuveen Asset Management, LLC | 1,843,243 | $16.1M | 0.00% | +6,918+0.4% | Added |
| Kynam Capital Management, LP | 1,625,000 | $14.2M | 1.57% | +1,625,000 | New |
| Northern Trust Corp | 1,532,517 | $13.3M | 0.00% | −55,875−3.5% | Reduced |
| Deutsche Bank AG | 1,517,726 | $13.2M | 0.01% | +1,064,001+234.5% | Added |
| Jupiter Asset Management Ltd | 1,479,964 | $12.9M | 0.12% | −790,078−34.8% | Reduced |
| Charles Schwab Investment Management Inc | 1,392,403 | $12.1M | 0.00% | +103,750+8.1% | Added |
| Glenmede Trust Co NA | 1,390,627 | $12.1M | 0.06% | +98,199+7.6% | Added |
| Goldman Sachs Group Inc | 1,379,662 | $12.0M | 0.00% | +297,997+27.5% | Added |
| Schonfeld Strategic Advisors LLC | 1,312,244 | $11.4M | 0.09% | +1,239,268+1,698.2% | Added |
| Two Sigma Advisers, LP | 1,285,000 | $11.2M | 0.03% | −56,800−4.2% | Reduced |
| Two Sigma Investments, LP | 1,188,233 | $10.3M | 0.03% | +602,386+102.8% | Added |
| JPMorgan Chase & Co | 1,185,225 | $10.3M | 0.00% | −269,656−18.5% | Reduced |
| Bank of New York Mellon Corp | 1,037,418 | $9.04M | 0.00% | −90,600−8.0% | Reduced |
| Rafferty Asset Management, LLC | 1,017,819 | $8.87M | 0.03% | +316,049+45.0% | Added |
| First Eagle Investment Management, LLC | 1,002,225 | $8.73M | 0.02% | +95,000+10.5% | Added |
| Citigroup Inc | 947,710 | $8.25M | 0.01% | +585,710+161.8% | Added |
| Saturn V Capital Management LLC | 944,912 | $8.23M | 3.30% | +944,912 | New |
| Bank of America Corp | 906,289 | $7.89M | 0.00% | +219,523+32.0% | Added |
| Hodges Capital Management Inc. | 863,500 | $7.52M | 0.48% | +863,500 | New |
| Parkman Healthcare Partners LLC | 850,000 | $7.40M | 0.91% | +729,348+604.5% | Added |
| Citadel Advisors LLC | 833,274 | $7.26M | 0.01% | +337,803+68.2% | Added |
| Emerald Advisers, LLC | 822,749 | $7.17M | 0.29% | +822,749 | New |
| New York State Common Retirement Fund | 809,002 | $7.05M | 0.01% | +17,266+2.2% | Added |
| Principal Financial Group Inc | 804,900 | $7.01M | 0.00% | +3,120+0.4% | Added |
| Russell Investments Group, Ltd. | 777,847 | $6.78M | 0.01% | +552,227+244.8% | Added |
| Norges Bank | 649,179 | $5.65M | 0.00% | −165,595−20.3% | Reduced |
| Emerald Mutual Fund Advisers Trust | 644,153 | $5.61M | 0.29% | +644,153 | New |
| Checkpoint Capital L.P. | 618,528 | $5.39M | 3.60% | −261,472−29.7% | Reduced |
| BNP Paribas Arbitrage, SA | 612,600 | $5.34M | 0.01% | +39,653+6.9% | Added |
| Ameriprise Financial Inc | 612,407 | $5.33M | 0.00% | −174,641−22.2% | Reduced |
| Royce & Associates LP | 591,004 | $5.15M | 0.05% | +292,241+97.8% | Added |
| Marshall Wace, LLP | 572,500 | $4.99M | 0.01% | +284,680+98.9% | Added |
| Invesco Ltd. | 516,963 | $4.50M | 0.00% | −41,064−7.4% | Reduced |
| AQR Capital Management LLC | 469,742 | $4.09M | 0.01% | +387,941+474.2% | Added |
| Millennium Management LLC | 461,444 | $4.02M | 0.00% | −510,691−52.5% | Reduced |
| 13D Management LLC | 419,284 | $3.65M | 2.23% | +51,635+14.0% | Added |
| Legal & General Group Plc | 396,607 | $3.45M | 0.00% | +3,379+0.9% | Added |
| Redwood Investment Management, LLC | 366,691 | $3.19M | 0.31% | +84,072+29.7% | Added |
| Rhumbline Advisers | 363,124 | $3.16M | 0.00% | −95,619−20.8% | Reduced |
| Bridgeway Capital Management, LLC | 328,000 | $2.86M | 0.06% | +328,000 | New |
| American Century Companies Inc | 327,133 | $2.85M | 0.00% | −450,266−57.9% | Reduced |
| Franklin Resources Inc | 311,340 | $2.71M | 0.00% | +282,762+989.4% | Added |
| Edgestream Partners, L.P. | 296,287 | $2.58M | 0.13% | +296,287 | New |
| Susquehanna International Group, LLP | 291,600 | $2.54M | 0.00% | +118,631+68.6% | Added |
| Barclays PLC | 290,245 | $2.53M | 0.00% | −262,323−47.5% | Reduced |
| D. E. Shaw & Co., Inc. | 288,653 | $2.51M | 0.00% | +59,623+26.0% | Added |
| Squarepoint Ops LLC | 284,760 | $2.48M | 0.01% | +197,387+225.9% | Added |
| Public Sector Pension Investment Board | 281,618 | $2.45M | 0.02% | −3,490−1.2% | Reduced |
| Swiss National Bank | 276,700 | $2.41M | 0.00% | 00.0% | Unchanged |
| Knott David M Jr | 276,000 | $2.40M | 0.85% | +276,000 | New |
| QRG Capital Management, Inc. | 250,227 | $2.18M | 0.03% | −8,744−3.4% | Reduced |
| Foundry Partners, LLC | 240,573 | $2.10M | 0.11% | +240,573 | New |
| Mercer Global Advisors Inc | 236,223 | $2.06M | 0.01% | −4,211−1.8% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 236,000 | $2.06M | 0.01% | −15,500−6.2% | Reduced |
| State Board of Administration of Florida Retirement System | 195,057 | $2.05M | 0.00% | +150,663+339.4% | Added |
| Alberta Investment Management Corp | 210,731 | $1.84M | 0.02% | 00.0% | Unchanged |
| Driehaus Capital Management LLC | 210,054 | $1.83M | 0.02% | −1,372,080−86.7% | Reduced |
| Tenor Capital Management Co., L.P. | 208,200 | $1.81M | 0.03% | +208,200 | New |
| Credit Suisse AG | 197,789 | $1.72M | 0.00% | −5,414,324−96.5% | Reduced |
| State of New Jersey Common Pension Fund D | 185,503 | $1.62M | 0.00% | −73,021−28.2% | Reduced |
| Gsa Capital Partners LLP | 176,172 | $1.53M | 0.12% | +176,172 | New |
| Arrowstreet Capital, Limited Partnership | 175,777 | $1.53M | 0.00% | +11,230+6.8% | Added |
| Hillsdale Investment Management Inc. | 171,200 | $1.49M | 0.12% | +13,800+8.8% | Added |
| Macquarie Group Ltd | 167,200 | $1.46M | 0.00% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 163,070 | $1.42M | 0.00% | −3,861−2.3% | Reduced |
| Profund Advisors LLC | 161,855 | $1.41M | 0.05% | +42,371+35.5% | Added |
| Prudential Financial Inc | 156,458 | $1.36M | 0.00% | −2,077−1.3% | Reduced |
| Great West Life Assurance Co | 152,492 | $1.33M | 0.00% | +5,543+3.8% | Added |
| UBS Asset Management Americas Inc | 150,515 | $1.31M | 0.00% | −6,487−4.1% | Reduced |
| Sio Capital Management, LLC | 149,400 | $1.30M | 0.45% | +149,400 | New |
| Dimensional Fund Advisors LP | 143,771 | $1.25M | 0.00% | −2,938,040−95.3% | Reduced |
| California State Teachers Retirement System | 142,018 | $1.24M | 0.00% | −6,535−4.4% | Reduced |
| Phocas Financial Corp. | 141,427 | $1.23M | 0.18% | +141,427 | New |
| Y-Intercept (Hong Kong) Ltd | 134,616 | $1.17M | 0.09% | +134,616 | New |
| Advantage Alpha Capital Partners LP | 130,966 | $1.14M | 0.21% | +5,261+4.2% | Added |
| Trexquant Investment LP | 129,475 | $1.13M | 0.02% | +129,475 | New |
| Victory Capital Management Inc | 127,691 | $1.11M | 0.00% | −4,096,892−97.0% | Reduced |
| Engineers Gate Manager LP | 125,567 | $1.09M | 0.03% | +18,029+16.8% | Added |
| State of Wisconsin Investment Board | 122,658 | $1.07M | 0.00% | +2,764+2.3% | Added |
| Texas Permanent School Fund | 120,245 | $1.05M | 0.01% | +1,557+1.3% | Added |
| Thrivent Financial for Lutherans | 119,192 | $1.04M | 0.00% | −3,236−2.6% | Reduced |
| Kennedy Capital Management, Inc. | 116,543 | $1.02M | 0.02% | +10,645+10.1% | Added |
| Artal Group S.A. | 110,532 | $962.7K | 0.02% | 00.0% | Unchanged |
| Alps Advisors Inc | 110,406 | $961.6K | 0.01% | +3,104+2.9% | Added |
| Public Employees Retirement System of Ohio | 109,623 | $954.8K | 0.00% | −4,471−3.9% | Reduced |