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 |
|---|---|---|---|---|---|
| Wellington Management Group LLP | 21,094,651 | $271.5M | 0.05% | −94,654−0.4% | Reduced |
| Brown Capital Management LLC | 18,484,759 | $237.9M | 1.80% | −1,685,367−8.4% | Reduced |
| Sarissa Capital Management LP | 16,390,000 | $210.9M | 16.77% | 00.0% | Unchanged |
| Vanguard Group Inc | 13,897,179 | $178.9M | 0.00% | −1,800,541−11.5% | Reduced |
| BlackRock Inc. | 11,550,907 | $148.7M | 0.00% | −1,797,657−13.5% | Reduced |
| Camber Capital Management LP | 7,500,000 | $96.5M | 3.79% | 00.0% | Unchanged |
| State Street Corp | 6,805,669 | $87.6M | 0.00% | −574,357−7.8% | Reduced |
| Westfield Capital Management Co LP | 6,258,873 | $80.6M | 0.48% | +875,223+16.3% | Added |
| Putnam Investments LLC | 4,737,415 | $61.0M | 0.09% | +1,388,883+41.5% | Added |
| LSV Asset Management | 4,364,227 | $56.2M | 0.10% | +3,390,228+348.1% | Added |
| Credit Suisse AG | 4,056,047 | $52.2M | 0.04% | +348,217+9.4% | Added |
| Renaissance Technologies LLC | 3,438,053 | $44.2M | 0.06% | +297,300+9.5% | Added |
| Goldman Sachs Group Inc | 3,031,571 | $39.0M | 0.01% | +1,450,335+91.7% | Added |
| Geode Capital Management, LLC | 2,757,409 | $35.5M | 0.00% | −18,934−0.7% | Reduced |
| Dimensional Fund Advisors LP | 2,679,530 | $34.5M | 0.01% | +734,831+37.8% | Added |
| New York State Common Retirement Fund | 2,358,777 | $30.4M | 0.03% | −11,105−0.5% | Reduced |
| Nuveen Asset Management, LLC | 2,307,605 | $29.7M | 0.01% | +910,801+65.2% | Added |
| Bridger Management, LLC | 2,035,114 | $26.2M | 2.44% | −817,300−28.7% | Reduced |
| UBS Asset Management Americas Inc | 1,905,275 | $24.5M | 0.01% | +49,189+2.7% | Added |
| Norges Bank | 1,781,953 | $22.9M | 0.00% | −25,616−1.4% | Reduced |
| Millennium Management LLC | 1,758,953 | $22.6M | 0.03% | +775,496+78.9% | Added |
| Northern Trust Corp | 1,730,416 | $22.3M | 0.00% | −124,284−6.7% | Reduced |
| Jupiter Asset Management Ltd | 1,547,452 | $19.9M | 0.20% | +1,111,923+255.3% | Added |
| HealthInvest Partners AB | 1,520,000 | $19.6M | 18.54% | +70,000+4.8% | Added |
| Morgan Stanley | 1,454,153 | $18.7M | 0.00% | +449,360+44.7% | Added |
| Charles Schwab Investment Management Inc | 1,181,188 | $15.2M | 0.01% | −8,607−0.7% | Reduced |
| Glenmede Trust Co NA | 1,097,813 | $14.1M | 0.07% | −2,488−0.2% | Reduced |
| Pictet Asset Management Ltd | 1,058,856 | $13.6M | 0.01% | −96,071−8.3% | Reduced |
| Great Lakes Advisors, LLC | 985,905 | $12.7M | 0.19% | +8,732+0.9% | Added |
| D. E. Shaw & Co., Inc. | 984,238 | $12.7M | 0.01% | −536,802−35.3% | Reduced |
| Wells Fargo & Company | 960,526 | $12.4M | 0.00% | +407,825+73.8% | Added |
| JPMorgan Chase & Co | 922,467 | $11.9M | 0.00% | −237,308−20.5% | Reduced |
| Bank of New York Mellon Corp | 819,452 | $10.5M | 0.00% | −176,378−17.7% | Reduced |
| Invesco Ltd. | 714,201 | $9.19M | 0.00% | −212,325−22.9% | Reduced |
| Prudential Financial Inc | 675,170 | $8.69M | 0.01% | +659,810+4,295.6% | Added |
| Acadian Asset Management LLC | 668,161 | $8.60M | 0.03% | +443,525+197.4% | Added |
| 13D Management LLC | 650,455 | $8.37M | 2.88% | −7,562−1.1% | Reduced |
| Teachers Retirement System of the State of Kentucky | 542,131 | $6.98M | 0.06% | 00.0% | Unchanged |
| Citigroup Inc | 538,191 | $6.93M | 0.01% | +102,084+23.4% | Added |
| Comerica Bank | 519,697 | $6.76M | 0.04% | +230,720+79.8% | Added |
| HealthCor Management, L.P. | 522,712 | $6.73M | 0.28% | −213,489−29.0% | Reduced |
| Price Michael F | 520,000 | $6.69M | 0.74% | 00.0% | Unchanged |
| Islet Management, LP | 500,000 | $6.43M | 0.34% | −400,000−44.4% | Reduced |
| Federated Hermes, Inc. | 480,775 | $6.19M | 0.01% | −6,613−1.4% | Reduced |
| AQR Capital Management LLC | 460,688 | $5.93M | 0.01% | −79,785−14.8% | Reduced |
| AXA S.A. | 432,900 | $5.57M | 0.02% | +432,900 | New |
| Marshall Wace, LLP | 418,870 | $5.39M | 0.03% | +405,520+3,037.6% | Added |
| Man Group plc | 395,034 | $5.08M | 0.02% | +208,808+112.1% | Added |
| ExodusPoint Capital Management, LP | 392,341 | $5.05M | 0.08% | +207,245+112.0% | Added |
| UBS Group AG | 391,501 | $5.04M | 0.00% | +383,281+4,662.8% | Added |
| Bank of America Corp | 386,398 | $4.97M | 0.00% | −33,150−7.9% | Reduced |
| Parametric Portfolio Associates LLC | 373,486 | $4.81M | 0.00% | +191,055+104.7% | Added |
| ClariVest Asset Management LLC | 362,384 | $4.66M | 0.16% | +141,199+63.8% | Added |
| Clark Estates Inc | 355,000 | $4.57M | 0.60% | +355,000 | New |
| Susquehanna International Group, LLP | 353,002 | $4.54M | 0.00% | +74,603+26.8% | Added |
| Swiss National Bank | 337,100 | $4.34M | 0.00% | −10,400−3.0% | Reduced |
| Principal Financial Group Inc | 334,781 | $4.31M | 0.00% | +54,101+19.3% | Added |
| Hillsdale Investment Management Inc. | 302,617 | $3.90M | 0.31% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 273,209 | $3.52M | 0.01% | +183,943+206.1% | Added |
| Assenagon Asset Management S.A. | 256,734 | $3.30M | 0.01% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 251,916 | $3.24M | 0.01% | −209,671−45.4% | Reduced |
| Alliancebernstein L.P. | 245,321 | $3.16M | 0.00% | +20,100+8.9% | Added |
| Virginia Retirement Systems Et Al | 226,900 | $2.92M | 0.03% | +4,200+1.9% | Added |
| Barclays PLC | 225,355 | $2.90M | 0.00% | −217,046−49.1% | Reduced |
| Rafferty Asset Management, LLC | 222,377 | $2.86M | 0.02% | −72,073−24.5% | Reduced |
| State of Wisconsin Investment Board | 214,800 | $2.76M | 0.01% | 00.0% | Unchanged |
| Skandinaviska Enskilda Banken AB (publ) | 214,600 | $2.76M | 0.02% | −1,000−0.5% | Reduced |
| State of New Jersey Common Pension Fund D | 207,193 | $2.67M | 0.01% | −25,442−10.9% | Reduced |
| Jump Financial, LLC | 206,300 | $2.65M | 0.26% | +185,300+882.4% | Added |
| California State Teachers Retirement System | 200,469 | $2.58M | 0.00% | −40,157−16.7% | Reduced |
| Healthcare Value Capital, LLC | 200,000 | $2.57M | 5.57% | 00.0% | Unchanged |
| American Century Companies Inc | 193,249 | $2.49M | 0.00% | +104,367+117.4% | Added |
| Schroder Investment Management Group | 184,074 | $2.37M | 0.00% | +86,029+87.7% | Added |
| Rhumbline Advisers | 183,689 | $2.36M | 0.00% | −8,298−4.3% | Reduced |
| Caption Management, LLC | 176,548 | $2.27M | 0.20% | +97,648+123.8% | Added |
| Citadel Advisors LLC | 171,435 | $2.21M | 0.00% | −114,339−40.0% | Reduced |
| Marshall Wace North America L.P. | 159,157 | $2.05M | 0.01% | +84,047+111.9% | Added |
| Russell Investments Group, Ltd. | 155,117 | $1.99M | 0.00% | −168,740−52.1% | Reduced |
| Alberta Investment Management Corp | 154,327 | $1.99M | 0.02% | +154,327 | New |
| Broderick Brian C | 143,850 | $1.85M | 0.49% | −8,250−5.4% | Reduced |
| Jane Street Group, LLC | 143,601 | $1.85M | 0.00% | +78,659+121.1% | Added |
| Redwood Investment Management, LLC | 141,355 | $1.82M | 0.30% | +9,190+7.0% | Added |
| Price T Rowe Associates Inc | 132,845 | $1.71M | 0.00% | −18,069−12.0% | Reduced |
| Squarepoint Ops LLC | 131,768 | $1.70M | 0.01% | −60,824−31.6% | Reduced |
| AlphaCrest Capital Management LLC | 130,745 | $1.68M | 0.07% | +17,353+15.3% | Added |
| Old Mission Capital LLC | 130,362 | $1.68M | 0.06% | +130,362 | New |
| Prelude Capital Management, LLC | 127,867 | $1.65M | 0.09% | −12,471−8.9% | Reduced |
| Two Sigma Advisers, LP | 119,857 | $1.54M | 0.00% | −334,000−73.6% | Reduced |
| Jennison Associates LLC | 115,623 | $1.49M | 0.00% | +9,341+8.8% | Added |
| Artal Group S.A. | 110,532 | $1.42M | 0.03% | 00.0% | Unchanged |
| Legal & General Group Plc | 107,547 | $1.38M | 0.00% | −1,421−1.3% | Reduced |
| APG Asset Management N.V. | 123,900 | $1.34M | 0.00% | +123,900 | New |
| Creative Planning | 104,303 | $1.34M | 0.00% | +104,303 | New |
| Fisher Asset Management, LLC | 102,624 | $1.32M | 0.00% | +21,106+25.9% | Added |
| Deutsche Bank AG | 99,766 | $1.28M | 0.00% | −647,446−86.6% | Reduced |
| Jackson Creek Investment Advisors LLC | 99,392 | $1.28M | 0.48% | +99,392 | New |
| Gotham Asset Management, LLC | 94,630 | $1.22M | 0.05% | +76,193+413.3% | Added |
| Winton Group Ltd | 92,642 | $1.19M | 0.06% | +14,189+18.1% | Added |
| Panagora Asset Management Inc | 92,451 | $1.19M | 0.01% | +92,451 | New |
| Manufacturers Life Insurance Company, The | 82,099 | $1.06M | 0.00% | −8,664−9.5% | Reduced |