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 2023
Institutional positions in Ironwood Pharmaceuticals Inc as of Mar 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
- 255
- +7 vs. Q4 2022
- Shares held
- 164.6M
- −2.86M (−1.7%) vs. Q4 2022
- Total value
- $1.74B
- −$331.6M (−16.0%) vs. Q4 2022
- New holders
- 27
- 107 more added
- Sold out
- 20
- 79 more reduced
2 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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 2023
Shares, value and share of portfolio for each institution holding Ironwood Pharmaceuticals Inc; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 25,317,910 | $266.3M | 0.01% | −455,471−1.8% | Reduced |
| Sarissa Capital Management LP | 16,390,000 | $172.4M | 22.05% | 00.0% | Unchanged |
| Vanguard Group Inc | 14,974,316 | $157.5M | 0.00% | +241,747+1.6% | Added |
| State Street Corp | 10,481,842 | $110.3M | 0.01% | −697,736−6.2% | Reduced |
| LSV Asset Management | 7,577,709 | $79.7M | 0.18% | −348,688−4.4% | Reduced |
| Wellington Management Group LLP | 6,178,438 | $65.0M | 0.01% | −7,161,939−53.7% | Reduced |
| Credit Suisse AG | 5,171,669 | $54.4M | 0.06% | −29,034−0.6% | Reduced |
| Renaissance Technologies LLC | 4,637,753 | $48.8M | 0.06% | +263,600+6.0% | Added |
| Dimensional Fund Advisors LP | 4,609,079 | $48.5M | 0.02% | +946,481+25.8% | Added |
| Brown Capital Management LLC | 3,933,933 | $41.4M | 0.62% | −63,112−1.6% | Reduced |
| Morgan Stanley | 3,798,993 | $40.0M | 0.00% | +1,140,486+42.9% | Added |
| Victory Capital Management Inc | 3,030,332 | $31.9M | 0.04% | +127,656+4.4% | Added |
| Geode Capital Management, LLC | 2,633,804 | $27.7M | 0.00% | +118,514+4.7% | Added |
| Pacer Advisors, Inc. | 2,261,800 | $23.8M | 0.10% | +711,756+45.9% | Added |
| Two Sigma Advisers, LP | 1,954,900 | $20.6M | 0.05% | +236,000+13.7% | Added |
| Jane Street Group, LLC | 1,925,882 | $20.3M | 0.03% | +1,783,342+1,251.1% | Added |
| Royce & Associates LP | 1,886,247 | $19.8M | 0.20% | +210,758+12.6% | Added |
| Invesco Ltd. | 1,758,794 | $18.5M | 0.01% | +55,584+3.3% | Added |
| Northern Trust Corp | 1,638,545 | $17.2M | 0.00% | +7,966+0.5% | Added |
| Nuveen Asset Management, LLC | 1,605,096 | $16.9M | 0.01% | −204,093−11.3% | Reduced |
| Norges Bank | 1,536,774 | $16.2M | 0.00% | +15,146+1.0% | Added |
| Two Sigma Investments, LP | 1,524,221 | $16.0M | 0.05% | −60,465−3.8% | Reduced |
| Charles Schwab Investment Management Inc | 1,506,691 | $15.9M | 0.00% | +418,419+38.4% | Added |
| Man Group plc | – | $14.6M | 0.05% | – | – |
| Millennium Management LLC | 1,382,548 | $14.5M | 0.02% | −2,607,394−65.3% | Reduced |
| Bank of New York Mellon Corp | 1,265,953 | $13.3M | 0.00% | −673−0.1% | Reduced |
| Deutsche Bank AG | 1,203,961 | $12.7M | 0.01% | +924,050+330.1% | Added |
| Goldman Sachs Group Inc | 1,077,297 | $11.3M | 0.00% | +59,169+5.8% | Added |
| Bank of America Corp | 1,056,109 | $11.1M | 0.00% | +122,998+13.2% | Added |
| Glenmede Trust Co NA | 1,049,013 | $11.0M | 0.06% | +11,347+1.1% | Added |
| American Century Companies Inc | 1,024,189 | $10.8M | 0.01% | −218,206−17.6% | Reduced |
| Balyasny Asset Management LLC | 950,736 | $10.0M | 0.03% | +950,736 | New |
| Hotchkis & Wiley Capital Management LLC | 942,160 | $9.91M | 0.04% | +148,640+18.7% | Added |
| Principal Financial Group Inc | 849,117 | $8.93M | 0.01% | −24,325−2.8% | Reduced |
| New York State Common Retirement Fund | 833,948 | $8.77M | 0.01% | −28,131−3.3% | Reduced |
| D. E. Shaw & Co., Inc. | 800,723 | $8.42M | 0.01% | +173,337+27.6% | Added |
| UBS Group AG | 787,084 | $8.28M | 0.00% | −33,197−4.0% | Reduced |
| AQR Capital Management LLC | 680,702 | $7.16M | 0.02% | +21,505+3.3% | Added |
| Great Lakes Advisors, LLC | 658,935 | $6.93M | 0.06% | −38,977−5.6% | Reduced |
| JPMorgan Chase & Co | 635,108 | $6.68M | 0.00% | −1,353,519−68.1% | Reduced |
| Ameriprise Financial Inc | 631,267 | $6.64M | 0.00% | +24,127+4.0% | Added |
| Cubist Systematic Strategies, LLC | 625,373 | $6.58M | 0.06% | +319,872+104.7% | Added |
| Rafferty Asset Management, LLC | 622,175 | $6.55M | 0.04% | −58,837−8.6% | Reduced |
| Citigroup Inc | 582,927 | $6.13M | 0.01% | +91,514+18.6% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 553,776 | $5.83M | 0.01% | +360,341+186.3% | Added |
| Quantedge Capital Pte Ltd | 541,200 | $5.69M | 2.22% | +190,500+54.3% | Added |
| 13D Management LLC | 533,562 | $5.61M | 2.85% | 00.0% | Unchanged |
| Price Jennifer C. | 520,000 | $5.47M | 1.74% | 00.0% | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. | 492,524 | $5.18M | 0.03% | +189,959+62.8% | Added |
| First Eagle Investment Management, LLC | 491,364 | $5.17M | 0.01% | +150,834+44.3% | Added |
| ExodusPoint Capital Management, LP | 472,023 | $4.97M | 0.06% | +219,806+87.1% | Added |
| Foundry Partners, LLC | 455,415 | $4.79M | 0.30% | +24,640+5.7% | Added |
| Jupiter Asset Management Ltd | 431,267 | $4.54M | 0.06% | +187,690+77.1% | Added |
| Hillsdale Investment Management Inc. | 420,617 | $4.42M | 0.38% | 00.0% | Unchanged |
| Rhumbline Advisers | 415,825 | $4.37M | 0.01% | +15,766+3.9% | Added |
| Legal & General Group Plc | 397,665 | $4.18M | 0.00% | +3,102+0.8% | Added |
| Citadel Advisors LLC | 376,861 | $3.96M | 0.00% | +305,687+429.5% | Added |
| BNP Paribas Arbitrage, SA | 350,763 | $3.69M | 0.01% | +211,818+152.4% | Added |
| Voloridge Investment Management, LLC | 349,837 | $3.68M | 0.02% | +222,291+174.3% | Added |
| Redwood Investment Management, LLC | 333,094 | $3.50M | 0.38% | +98,235+41.8% | Added |
| Barclays PLC | 333,013 | $3.50M | 0.00% | −143,186−30.1% | Reduced |
| Guggenheim Capital LLC | 319,383 | $3.36M | 0.03% | −33,056−9.4% | Reduced |
| SG Americas Securities, LLC | 312,990 | $3.29M | 0.04% | +303,040+3,045.6% | Added |
| Great West Life Assurance Co | 305,008 | $3.21M | 0.01% | +156,751+105.7% | Added |
| Swiss National Bank | 298,000 | $3.13M | 0.00% | −35,000−10.5% | Reduced |
| Allspring Global Investments Holdings, LLC | 273,698 | $2.88M | 0.00% | +95,111+53.3% | Added |
| Alberta Investment Management Corp | 266,385 | $2.80M | 0.03% | +21,417+8.7% | Added |
| Winton Group Ltd | 256,654 | $2.70M | 0.16% | +57,514+28.9% | Added |
| Brandywine Global Investment Management, LLC | 254,051 | $2.67M | 0.02% | +254,051 | New |
| HSBC Holdings PLC | 250,157 | $2.64M | 0.00% | +108,020+76.0% | Added |
| Susquehanna International Group, LLP | 249,623 | $2.63M | 0.00% | +115,695+86.4% | Added |
| Public Sector Pension Investment Board | 234,714 | $2.47M | 0.02% | −214,075−47.7% | Reduced |
| Trexquant Investment LP | 223,671 | $2.35M | 0.06% | +46,985+26.6% | Added |
| Natixis | 223,650 | $2.35M | 0.02% | +221,269+9,293.1% | Added |
| Oak Associates, Ltd | 221,289 | $2.33M | 0.19% | +11,340+5.4% | Added |
| Envestnet Asset Management Inc | 505,954 | $2.23M | 0.00% | +281,820+125.7% | Added |
| Tamarack Advisers, LP | 210,000 | $2.21M | 1.69% | +35,000+20.0% | Added |
| Qube Research & Technologies Ltd | 206,308 | $2.17M | 0.01% | +36,014+21.1% | Added |
| State of New Jersey Common Pension Fund D | 201,150 | $2.12M | 0.01% | 00.0% | Unchanged |
| Twinbeech Capital LP | 199,921 | $2.10M | 0.04% | +199,921 | New |
| State Board of Administration of Florida Retirement System | 195,057 | $2.05M | 0.00% | +4,804+2.5% | Added |
| Los Angeles Capital Management LLC | 192,556 | $2.03M | 0.01% | −8,789−4.4% | Reduced |
| Moran Wealth Management, LLC | 189,588 | $1.99M | 0.08% | +37,994+25.1% | Added |
| Mercer Global Advisors Inc | 189,402 | $1.99M | 0.01% | +10,366+5.8% | Added |
| SEI Investments Co | 179,318 | $1.89M | 0.00% | +9,082+5.3% | Added |
| California State Teachers Retirement System | 172,135 | $1.81M | 0.00% | −2,335−1.3% | Reduced |
| First Trust Advisors LP | 169,341 | $1.78M | 0.00% | −227,512−57.3% | Reduced |
| Macquarie Group Ltd | 167,200 | $1.76M | 0.00% | 00.0% | Unchanged |
| Exchange Traded Concepts, LLC | 164,126 | $1.73M | 0.05% | +164,126 | New |
| Jefferies Financial Group Inc. | 163,400 | $1.72M | 0.04% | +163,400 | New |
| Alliancebernstein L.P. | 161,031 | $1.69M | 0.00% | −41,196−20.4% | Reduced |
| Assenagon Asset Management S.A. | 157,504 | $1.66M | 0.01% | +20,575+15.0% | Added |
| UBS Asset Management Americas Inc | 156,371 | $1.65M | 0.00% | −8,983−5.4% | Reduced |
| Hussman Strategic Advisors, Inc. | 156,000 | $1.64M | 0.26% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 152,859 | $1.61M | 0.01% | +152,859 | New |
| Prudential Financial Inc | 130,906 | $1.51M | 0.00% | −4,290−3.2% | Reduced |
| Wells Fargo & Company | 142,450 | $1.50M | 0.00% | +47,551+50.1% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 141,304 | $1.49M | 0.01% | −1,521−1.1% | Reduced |
| HRT Financial LP | 138,167 | $1.45M | 0.02% | −183,662−57.1% | Reduced |
| Martingale Asset Management L P | 134,292 | $1.41M | 0.03% | +2,702+2.1% | Added |