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 2025
Institutional positions in Ironwood Pharmaceuticals Inc as of Jun 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
- 155
- −45 vs. Q1 2025
- Shares held
- 146.2M
- −9.26M (−6.0%) vs. Q1 2025
- Total value
- $104.9M
- −$123.6M (−54.1%) vs. Q1 2025
- New holders
- 19
- 60 more added
- Sold out
- 64
- 51 more reduced
Compare with Q1 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 | $195.0M |
| Q2 2025 | 155 | $104.9M |
| Q1 2025 | 200 | $228.6M |
| Q4 2024 | 223 | $727.6M |
| Q3 2024 | 221 | $675.0M |
| Q2 2024 | 227 | $1.13B |
| Q1 2024 | 261 | $1.56B |
| Q4 2023 | 251 | $1.93B |
| Q3 2023 | 249 | $1.56B |
| Q2 2023 | 252 | $1.77B |
| Q1 2023 | 255 | $1.75B |
| Q4 2022 | 250 | $2.08B |
| Q3 2022 | 245 | $1.76B |
| Q2 2022 | 240 | $2.02B |
| Q1 2022 | 221 | $2.10B |
| Q4 2021 | 213 | $2.01B |
| Q3 2021 | 229 | $2.32B |
| Q2 2021 | 209 | $2.25B |
| Q1 2021 | 210 | $1.91B |
Institutions, Q2 2025
Shares, value and share of portfolio for each institution holding Ironwood Pharmaceuticals Inc; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 16,202,129 | $11.6M | 0.00% | +505,968+3.2% | Added |
| Armistice Capital, LLC | 16,150,000 | $11.6M | 0.44% | +2,450,000+17.9% | Added |
| Sarissa Capital Management LP | 15,919,435 | $11.4M | 7.40% | −470,565−2.9% | Reduced |
| BlackRock, Inc. | 12,022,998 | $8.62M | 0.00% | +144,074+1.2% | Added |
| Renaissance Technologies LLC | 8,406,169 | $6.03M | 0.01% | −1,534,323−15.4% | Reduced |
| Acadian Asset Management LLC | 6,549,687 | $4.68M | 0.01% | +3,904,498+147.6% | Added |
| AQR Capital Management LLC | 6,165,637 | $4.42M | 0.00% | +3,641,762+144.3% | Added |
| Kynam Capital Management, LP | 5,466,825 | $3.92M | 0.42% | −356,113−6.1% | Reduced |
| Marshall Wace, LLP | 3,993,557 | $2.88M | 0.00% | +3,436,036+616.3% | Added |
| Charles Schwab Investment Management Inc | 3,664,276 | $2.63M | 0.00% | +1,017,261+38.4% | Added |
| Geode Capital Management, LLC | 3,499,332 | $2.51M | 0.00% | +81,243+2.4% | Added |
| Two Sigma Advisers, LP | 3,384,100 | $2.43M | 0.00% | +1,499,500+79.6% | Added |
| Bank of America Corp | 3,357,872 | $2.41M | 0.00% | +1,929,356+135.1% | Added |
| Qube Research & Technologies Ltd | 3,351,002 | $2.40M | 0.00% | +43,943+1.3% | Added |
| State Street Corp | 3,107,719 | $2.23M | 0.00% | −390,570−11.2% | Reduced |
| Two Sigma Investments, LP | 2,750,573 | $1.97M | 0.00% | +1,523,377+124.1% | Added |
| LSV Asset Management | 2,750,200 | $1.97M | 0.00% | −1,247,601−31.2% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 2,206,948 | $1.58M | 0.01% | +718,904+48.3% | Added |
| Federated Hermes, Inc. | 2,177,038 | $1.56M | 0.00% | +871,676+66.8% | Added |
| Jane Street Group, LLC | 1,745,122 | $1.25M | 0.00% | −1,764,995−50.3% | Reduced |
| D. E. Shaw & Co., Inc. | 1,669,639 | $1.20M | 0.00% | +1,559,915+1,421.7% | Added |
| Deutsche Bank AG | 1,523,337 | $1.10M | 0.00% | −30,817−2.0% | Reduced |
| Jacobs Levy Equity Management, Inc | 1,475,046 | $1.06M | 0.00% | −105,274−6.7% | Reduced |
| Goldman Sachs Group Inc | 1,444,730 | $1.04M | 0.00% | −130,686−8.3% | Reduced |
| Northern Trust Corp | 1,305,265 | $936.1K | 0.00% | −101,269−7.2% | Reduced |
| Los Angeles Capital Management LLC | 1,211,155 | $868.6K | 0.00% | +523,368+76.1% | Added |
| Amundi | 755,536 | $558.9K | 0.00% | +685,556+979.6% | Added |
| Gsa Capital Partners LLP | 720,860 | $517.0K | 0.04% | +196,184+37.4% | Added |
| SEI Investments Co | 683,604 | $490.3K | 0.00% | +496,857+266.1% | Added |
| CWM Advisors, LLC | 552,420 | $396.2K | 0.04% | +320,595+138.3% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 526,775 | $377.8K | 0.00% | +108,822+26.0% | Added |
| Graham Capital Management, L.P. | 523,378 | $375.4K | 0.01% | +319,840+157.1% | Added |
| Royce & Associates LP | 506,060 | $362.9K | 0.00% | −229,376−31.2% | Reduced |
| FMR LLC | 497,202 | $356.6K | 0.00% | +17,461+3.6% | Added |
| Morgan Stanley | 494,034 | $354.3K | 0.00% | −1,369,187−73.5% | Reduced |
| Ieq Capital, LLC | 491,882 | $352.8K | 0.00% | +306,154+164.8% | Added |
| Bank of New York Mellon Corp | 487,182 | $349.4K | 0.00% | −12,431−2.5% | Reduced |
| Robeco Institutional Asset Management B.V. | 370,334 | $265.6K | 0.00% | −10,626−2.8% | Reduced |
| Barclays PLC | 365,450 | $262.1K | 0.00% | +36,061+10.9% | Added |
| Exchange Traded Concepts, LLC | 341,534 | $244.9K | 0.00% | +163,011+91.3% | Added |
| Cerity Partners LLC | 339,689 | $243.6K | 0.00% | +243,211+252.1% | Added |
| Invesco Ltd. | 322,147 | $231.0K | 0.00% | +46,894+17.0% | Added |
| Toroso Investments, LLC | 310,079 | $222.4K | 0.00% | +310,079 | New |
| Citadel Advisors LLC | 309,272 | $221.8K | 0.00% | −631,276−67.1% | Reduced |
| UBS Group AG | 300,110 | $215.2K | 0.00% | +175,839+141.5% | Added |
| Susquehanna International Group, LLP | 265,959 | $190.7K | 0.00% | −382,308−59.0% | Reduced |
| Man Group plc | 234,257 | $168.0K | 0.00% | −99,461−29.8% | Reduced |
| Rhumbline Advisers | 215,618 | $154.6K | 0.00% | +7,575+3.6% | Added |
| Omers Administration Corp | 215,110 | $154.3K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 208,861 | $150.0K | 0.00% | −9,167−4.2% | Reduced |
| State of Wyoming | 205,644 | $147.5K | 0.02% | +146,869+249.9% | Added |
| Alliancebernstein L.P. | 199,520 | $143.1K | 0.00% | +46,960+30.8% | Added |
| Principal Financial Group Inc | 189,064 | $135.6K | 0.00% | +96,682+104.7% | Added |
| CWM, LLC | 182,774 | $131.0K | 0.00% | +125,773+220.7% | Added |
| KLP Kapitalforvaltning AS | 174,200 | $124.9K | 0.00% | −24,200−12.2% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 172,579 | $123.8K | 0.00% | −7,973−4.4% | Reduced |
| Price T Rowe Associates Inc | 172,521 | $123.0K | 0.00% | +1,243+0.7% | Added |
| Mariner, LLC | 161,574 | $115.9K | 0.00% | −588,426−78.5% | Reduced |
| Macquarie Group Ltd | 136,200 | $98.0K | 0.00% | −33,250−19.6% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 125,460 | $96.1K | 0.00% | +101,574+425.2% | Added |
| Algert Global LLC | 122,580 | $87.9K | 0.00% | +122,580 | New |
| JPMorgan Chase & Co | 113,284 | $81.2K | 0.00% | −1,589,349−93.3% | Reduced |
| Siren, L.L.C. | 110,532 | $79.6K | 0.00% | 00.0% | Unchanged |
| Cercano Management LLC | 101,378 | $72.7K | 0.00% | 00.0% | Unchanged |
| Millennium Management LLC | 96,332 | $69.1K | 0.00% | −6,263,350−98.5% | Reduced |
| Creative Planning | 93,680 | $67.2K | 0.00% | +9,048+10.7% | Added |
| Dimensional Fund Advisors LP | 90,373 | $64.8K | 0.00% | −280.0% | Reduced |
| Intech Investment Management LLC | 87,787 | $63.0K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 87,496 | $62.8K | 0.00% | +3,245+3.9% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 87,435 | $62.7K | 0.00% | +3,339+4.0% | Added |
| Squarepoint Ops LLC | 79,867 | $57.3K | 0.00% | +79,867 | New |
| Pallas Capital Advisors LLC | 79,512 | $57.0K | 0.00% | +65,172+454.5% | Added |
| Tudor Investment Corp Et Al | 79,455 | $57.0K | 0.00% | −2,340−2.9% | Reduced |
| STRS Ohio | 76,600 | $54.9K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 75,000 | $53.8K | 0.00% | +44,000+141.9% | Added |
| Engineers Gate Manager LP | 73,354 | $52.6K | 0.00% | +57,720+369.2% | Added |
| Citigroup Inc | 66,136 | $47.4K | 0.00% | −44,030−40.0% | Reduced |
| JustInvest LLC | 50,677 | $36.3K | 0.00% | +50,677 | New |
| Ameriprise Financial Inc | 48,127 | $34.5K | 0.00% | −1,494−3.0% | Reduced |
| Panagora Asset Management Inc | 46,569 | $33.4K | 0.00% | 00.0% | Unchanged |
| Voya Investment Management LLC | 46,075 | $33.0K | 0.00% | +6,104+15.3% | Added |
| Captrust Financial Advisors | 44,447 | $31.9K | 0.00% | +44,447 | New |
| State Board of Administration of Florida Retirement System | 44,394 | $31.8K | 0.00% | −248,051−84.8% | Reduced |
| New York State Common Retirement Fund | 41,869 | $30.0K | 0.00% | 00.0% | Unchanged |
| Merit Financial Group, LLC | 41,647 | $29.9K | 0.00% | +26,325+171.8% | Added |
| Grimes & Company, Inc. | 40,994 | $29.4K | 0.00% | 00.0% | Unchanged |
| Buckingham Strategic Partners | 39,743 | $28.5K | 0.00% | +29,409+284.6% | Added |
| Teachers Retirement System of the State of Kentucky | 39,600 | $28.0K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 38,852 | $27.9K | 0.00% | +1,007+2.7% | Added |
| R Squared Ltd | 38,765 | $27.8K | 0.02% | +28,735+286.5% | Added |
| Capstone Investment Advisors, LLC | 36,268 | $26.0K | 0.00% | −3,732−9.3% | Reduced |
| Oversea-Chinese Banking CORP Ltd | 35,016 | $25.1K | 0.00% | +35,016 | New |
| Colony Group, LLC | 34,547 | $24.8K | 0.00% | +34,547 | New |
| Mercer Global Advisors Inc | 33,415 | $24.0K | 0.00% | +33,415 | New |
| China Universal Asset Management Co., Ltd. | 32,501 | $23.3K | 0.00% | +402+1.3% | Added |
| Dynamic Technology Lab Private Ltd | 31,500 | $23.0K | 0.00% | −7,110−18.4% | Reduced |
| Neuberger Berman Group LLC | 30,534 | $21.9K | 0.00% | +19,566+178.4% | Added |
| Brighton Jones LLC | 30,425 | $21.8K | 0.00% | +30,425 | New |
| Police & Firemen's Retirement System of New Jersey | 29,313 | $21.0K | 0.00% | 00.0% | Unchanged |
| Jain Global LLC | 28,869 | $20.7K | 0.00% | −54,136−65.2% | Reduced |