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 2023
Institutional positions in Ironwood Pharmaceuticals Inc as of Dec 31, 2023. 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
- 251
- +5 vs. Q3 2023
- Shares held
- 165.0M
- +5.37M (+3.4%) vs. Q3 2023
- Total value
- $1.89B
- +$324.4M (+20.8%) vs. Q3 2023
- New holders
- 31
- 87 more added
- Sold out
- 26
- 94 more reduced
3 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2023
Shares, value and share of portfolio for each institution holding Ironwood Pharmaceuticals Inc; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 25,980,308 | $297.2M | 0.01% | +746,046+3.0% | Added |
| Sarissa Capital Management LP | 16,390,000 | $187.5M | 28.90% | 00.0% | Unchanged |
| Vanguard Group Inc | 16,033,545 | $183.4M | 0.00% | +1,137,845+7.6% | Added |
| State Street Corp | 11,532,088 | $131.9M | 0.01% | −464,777−3.9% | Reduced |
| LSV Asset Management | 6,782,101 | $77.6M | 0.17% | −382,108−5.3% | Reduced |
| Renaissance Technologies LLC | 6,595,898 | $75.5M | 0.12% | +796,000+13.7% | Added |
| Armistice Capital, LLC | 5,700,000 | $65.2M | 1.73% | +2,244,000+64.9% | Added |
| Credit Suisse AG | 5,612,113 | $64.2M | 0.06% | +1,110,544+24.7% | Added |
| Victory Capital Management Inc | 4,224,583 | $48.3M | 0.05% | −182,149−4.1% | Reduced |
| Brown Capital Management LLC | 3,709,431 | $42.4M | 0.64% | −10,365−0.3% | Reduced |
| Dimensional Fund Advisors LP | 3,081,811 | $35.3M | 0.01% | −2,435,165−44.1% | Reduced |
| Geode Capital Management, LLC | 3,080,463 | $35.2M | 0.00% | +156,340+5.3% | Added |
| Jacobs Levy Equity Management, Inc | 3,009,203 | $34.4M | 0.17% | +630,908+26.5% | Added |
| Jupiter Asset Management Ltd | 2,270,042 | $26.0M | 0.26% | +59,057+2.7% | Added |
| Point72 Asset Management, L.P. | 2,217,669 | $25.4M | 0.08% | +979,896+79.2% | Added |
| Morgan Stanley | 2,147,818 | $24.6M | 0.00% | +247,035+13.0% | Added |
| Nuveen Asset Management, LLC | 1,836,325 | $21.0M | 0.01% | +706,218+62.5% | Added |
| Northern Trust Corp | 1,588,392 | $18.2M | 0.00% | −53,495−3.3% | Reduced |
| Driehaus Capital Management LLC | 1,582,134 | $18.1M | 0.22% | −4,631−0.3% | Reduced |
| Adage Capital Partners GP, L.L.C. | 1,511,789 | $17.3M | 0.04% | −950,511−38.6% | Reduced |
| JPMorgan Chase & Co | 1,454,881 | $16.6M | 0.00% | +973,576+202.3% | Added |
| Man Group plc | 1,425,389 | $16.3M | 0.05% | – | – |
| Two Sigma Advisers, LP | 1,341,800 | $15.4M | 0.04% | −503,800−27.3% | Reduced |
| Glenmede Trust Co NA | 1,292,428 | $14.8M | 0.08% | −32,307−2.4% | Reduced |
| Charles Schwab Investment Management Inc | 1,288,653 | $14.7M | 0.00% | +57,859+4.7% | Added |
| Hotchkis & Wiley Capital Management LLC | 1,140,470 | $13.0M | 0.05% | +43,800+4.0% | Added |
| Bank of New York Mellon Corp | 1,128,018 | $12.9M | 0.00% | −91,968−7.5% | Reduced |
| Goldman Sachs Group Inc | 1,081,665 | $12.4M | 0.00% | −24,904−2.3% | Reduced |
| Millennium Management LLC | 972,135 | $11.1M | 0.01% | +794,782+448.1% | Added |
| First Eagle Investment Management, LLC | 907,225 | $10.4M | 0.02% | +90,636+11.1% | Added |
| Checkpoint Capital L.P. | 880,000 | $10.1M | 7.03% | +880,000 | New |
| Norges Bank | 814,774 | $9.32M | 0.00% | −104,275−11.3% | Reduced |
| Principal Financial Group Inc | 801,780 | $9.17M | 0.01% | −690.0% | Reduced |
| New York State Common Retirement Fund | 791,736 | $9.06M | 0.01% | +8,740+1.1% | Added |
| Ameriprise Financial Inc | 787,048 | $9.00M | 0.00% | +74,057+10.4% | Added |
| American Century Companies Inc | 777,399 | $8.89M | 0.01% | −503,870−39.3% | Reduced |
| Eventide Asset Management, LLC | 740,554 | $8.47M | 0.14% | +740,554 | New |
| Rafferty Asset Management, LLC | 701,770 | $8.03M | 0.03% | −172,282−19.7% | Reduced |
| Bank of America Corp | 686,766 | $7.86M | 0.00% | −110,860−13.9% | Reduced |
| Two Sigma Investments, LP | 585,847 | $6.70M | 0.02% | −808,316−58.0% | Reduced |
| BNP Paribas Arbitrage, SA | 572,947 | $6.55M | 0.01% | +148,402+35.0% | Added |
| Invesco Ltd. | 558,027 | $6.38M | 0.00% | −486,694−46.6% | Reduced |
| Barclays PLC | 552,568 | $6.32M | 0.00% | −26,104−4.5% | Reduced |
| Citadel Advisors LLC | 495,471 | $5.67M | 0.01% | +381,454+334.6% | Added |
| Brandywine Global Investment Management, LLC | 478,605 | $5.48M | 0.04% | +2,046+0.4% | Added |
| Cubist Systematic Strategies, LLC | 472,990 | $5.41M | 0.07% | +314,124+197.7% | Added |
| Rhumbline Advisers | 458,743 | $5.25M | 0.01% | +507+0.1% | Added |
| Deutsche Bank AG | 453,725 | $5.19M | 0.00% | +379,558+511.8% | Added |
| UBS Group AG | 445,308 | $5.09M | 0.00% | −449,766−50.2% | Reduced |
| Legal & General Group Plc | 393,228 | $4.50M | 0.00% | −1,881−0.5% | Reduced |
| 13D Management LLC | 367,649 | $4.21M | 2.47% | +333,348+971.8% | Added |
| Citigroup Inc | 362,000 | $4.14M | 0.01% | −67,788−15.8% | Reduced |
| GMT Capital Corp | 356,400 | $4.08M | 0.15% | −104,800−22.7% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 347,016 | $3.97M | 0.01% | −211,324−37.8% | Reduced |
| ExodusPoint Capital Management, LP | 335,614 | $3.84M | 0.05% | +163,664+95.2% | Added |
| Sofinnova Investments, Inc. | 331,099 | $3.79M | 0.21% | +331,099 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 303,675 | $3.47M | 0.02% | −197,006−39.3% | Reduced |
| First Trust Advisors LP | 299,245 | $3.42M | 0.00% | +299,245 | New |
| Royce & Associates LP | 298,763 | $3.42M | 0.03% | +14,013+4.9% | Added |
| Jane Street Group, LLC | 296,911 | $3.40M | 0.00% | −217,586−42.3% | Reduced |
| Marshall Wace, LLP | 287,820 | $3.29M | 0.01% | +140,075+94.8% | Added |
| Public Sector Pension Investment Board | 285,108 | $3.26M | 0.02% | +115,401+68.0% | Added |
| Redwood Investment Management, LLC | 282,619 | $3.23M | 0.30% | −47,188−14.3% | Reduced |
| Swiss National Bank | 276,700 | $3.17M | 0.00% | −30,600−10.0% | Reduced |
| QRG Capital Management, Inc. | 258,971 | $2.96M | 0.04% | −9,851−3.7% | Reduced |
| State of New Jersey Common Pension Fund D | 258,524 | $2.96M | 0.01% | −14,823−5.4% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 251,500 | $2.88M | 0.01% | 00.0% | Unchanged |
| AlphaCentric Advisors LLC | 245,000 | $2.80M | 1.88% | −47,500−16.2% | Reduced |
| Guggenheim Capital LLC | 240,871 | $2.76M | 0.02% | −15,024−5.9% | Reduced |
| Mercer Global Advisors Inc | 240,434 | $2.75M | 0.01% | −4,315−1.8% | Reduced |
| Voloridge Investment Management, LLC | 239,832 | $2.74M | 0.01% | +126,235+111.1% | Added |
| Jefferies Financial Group Inc. | 232,081 | $2.66M | 0.04% | +21,341+10.1% | Added |
| D. E. Shaw & Co., Inc. | 229,030 | $2.62M | 0.00% | −207,233−47.5% | Reduced |
| Exchange Traded Concepts, LLC | 227,767 | $2.61M | 0.07% | −7,923−3.4% | Reduced |
| Russell Investments Group, Ltd. | 225,620 | $2.58M | 0.00% | +64,378+39.9% | Added |
| Alberta Investment Management Corp | 210,731 | $2.41M | 0.02% | 00.0% | Unchanged |
| Cowen and Company, LLC | 200,578 | $2.29M | 0.15% | +200,578 | New |
| Moran Wealth Management, LLC | 200,160 | $2.29M | 0.08% | −2,230−1.1% | Reduced |
| SEI Investments Co | 190,143 | $2.18M | 0.00% | +144+0.1% | Added |
| HRT Financial LP | 189,276 | $2.17M | 0.02% | −52,761−21.8% | Reduced |
| Susquehanna International Group, LLP | 172,969 | $1.98M | 0.00% | +57,250+49.5% | Added |
| Macquarie Group Ltd | 167,200 | $1.91M | 0.00% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 166,931 | $1.91M | 0.00% | +5,900+3.7% | Added |
| Arrowstreet Capital, Limited Partnership | 164,547 | $1.88M | 0.00% | +48,658+42.0% | Added |
| Prudential Financial Inc | 158,535 | $1.81M | 0.00% | −2,958−1.8% | Reduced |
| Hillsdale Investment Management Inc. | 157,400 | $1.80M | 0.15% | +157,400 | New |
| UBS Asset Management Americas Inc | 157,002 | $1.80M | 0.00% | +23,086+17.2% | Added |
| California State Teachers Retirement System | 148,553 | $1.70M | 0.00% | −5,698−3.7% | Reduced |
| Great West Life Assurance Co | 146,949 | $1.68M | 0.00% | −102,098−41.0% | Reduced |
| Martingale Asset Management L P | 139,858 | $1.60M | 0.03% | −140−0.1% | Reduced |
| Advantage Alpha Capital Partners LP | 125,705 | $1.44M | 0.27% | +125,705 | New |
| Thrivent Financial for Lutherans | 122,428 | $1.40M | 0.00% | −3,179−2.5% | Reduced |
| Parkman Healthcare Partners LLC | 120,652 | $1.38M | 0.20% | +20,652+20.7% | Added |
| State of Wisconsin Investment Board | 119,894 | $1.37M | 0.00% | +231+0.2% | Added |
| Profund Advisors LLC | 119,484 | $1.37M | 0.06% | −31,795−21.0% | Reduced |
| Texas Permanent School Fund | 118,688 | $1.36M | 0.01% | +2,076+1.8% | Added |
| Voya Investment Management LLC | 116,057 | $1.33M | 0.00% | +726+0.6% | Added |
| Public Employees Retirement System of Ohio | 114,094 | $1.31M | 0.01% | +24,594+27.5% | Added |
| Artal Group S.A. | 110,532 | $1.26M | 0.04% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 107,538 | $1.23M | 0.04% | +107,538 | New |