Ironwood Pharmaceuticals, Inc. Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| ARMISTICE CAPITAL, LLC | 11/17/2025 | 16.15 M | $21.16 M | 0.00% | 9.99% |
| VANGUARD GROUP INC | 11/07/2025 | 16.07 M | $21.05 M | -0.80% | 9.94% |
| SARISSA CAPITAL MANAGEMENT LP | 11/14/2025 | 15.92 M | $20.85 M | 0.00% | 9.84% |
| BLACKROCK, INC. | 11/12/2025 | 12.06 M | $15.80 M | 0.33% | 7.46% |
| BANK OF AMERICA CORP /DE/ | 11/14/2025 | 11.70 M | $15.32 M | 248.30% | 7.23% |
| UBS GROUP AG | 11/13/2025 | 11.20 M | $14.67 M | 0.00% | 6.93% |
| RENAISSANCE TECHNOLOGIES LLC | 11/13/2025 | 8.35 M | $10.94 M | -0.64% | 5.16% |
| ACADIAN ASSET MANAGEMENT LLC | 11/13/2025 | 6.50 M | $8.51 M | -0.72% | 4.02% |
| KYNAM CAPITAL MANAGEMENT, LP | 11/14/2025 | 5.47 M | $7.16 M | 0.00% | 3.38% |
| AQR CAPITAL MANAGEMENT LLC | 11/14/2025 | 5.38 M | $7.05 M | -12.77% | 3.33% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 11/10/2025 | 4.92 M | $6.44 M | 34.20% | 3.04% |
| GEODE CAPITAL MANAGEMENT, LLC | 11/12/2025 | 3.61 M | $4.74 M | 3.31% | 2.24% |
| TWO SIGMA ADVISERS, LP | 11/14/2025 | 3.32 M | $4.34 M | -2.00% | 2.05% |
| STATE STREET CORP | 11/14/2025 | 3.16 M | $4.13 M | 1.56% | 1.95% |
| MARSHALL WACE, LLP | 11/13/2025 | 3.14 M | $4.12 M | -21.27% | 1.94% |
| QUBE RESEARCH & TECHNOLOGIES LTD | 11/14/2025 | 2.81 M | $3.68 M | -16.24% | 1.74% |
| TWO SIGMA INVESTMENTS, LP | 11/14/2025 | 2.53 M | $3.32 M | -7.86% | 1.57% |
| JANE STREET GROUP, LLC | 11/14/2025 | 2.32 M | $3.04 M | 33.00% | 1.44% |
| CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD. | 11/13/2025 | 2.16 M | $2.83 M | -2.04% | 1.34% |
| FEDERATED HERMES, INC. | 11/03/2025 | 2.16 M | $2.83 M | -0.92% | 1.33% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 11/17/2025 | 1.92 M | $2.52 M | 30.20% | 1.19% |
| DEUTSCHE BANK AG\ | 11/13/2025 | 1.53 M | $2.00 M | 0.26% | 0.94% |
| NORTHERN TRUST CORP | 11/14/2025 | 1.34 M | $1.76 M | 2.73% | 0.83% |
| LOS ANGELES CAPITAL MANAGEMENT LLC | 10/20/2025 | 1.13 M | $1.48 M | -6.70% | 0.70% |
| GOLDMAN SACHS GROUP INC | 11/14/2025 | 1.08 M | $1.42 M | -24.94% | 0.67% |
| UBS GROUP AG | 11/13/2025 | 811.66 K | $1.06 M | 170.46% | 0.50% |
| SEI INVESTMENTS CO | 11/13/2025 | 683.60 K | $895.52 K | 0.00% | 0.42% |
| IEQ CAPITAL, LLC | 11/14/2025 | 661.70 K | $866.82 K | 34.52% | 0.41% |
| CITADEL ADVISORS LLC | 11/14/2025 | 644.05 K | $843.70 K | 108.25% | 0.40% |
| FMR LLC | 11/13/2025 | 559.95 K | $733.53 K | 12.62% | 0.35% |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | 11/10/2025 | 537.25 K | $703.80 K | 100.00% | 0.33% |
| BANK OF NEW YORK MELLON CORP | 11/03/2025 | 503.08 K | $659.03 K | 3.26% | 0.31% |
| MORGAN STANLEY | 11/14/2025 | 477.10 K | $625.00 K | -3.43% | 0.30% |
| D. E. SHAW & CO., INC. | 11/14/2025 | 372.27 K | $487.67 K | -77.70% | 0.23% |
| INVESCO LTD. | 11/13/2025 | 366.53 K | $480.16 K | 13.78% | 0.23% |
| STATE OF WYOMING | 11/04/2025 | 362.41 K | $474.75 K | 76.23% | 0.22% |
| ROBECO INSTITUTIONAL ASSET MANAGEMENT B.V. | 10/22/2025 | 343.00 K | $449.33 K | -7.38% | 0.21% |
| CERITY PARTNERS LLC | 10/22/2025 | 339.05 K | $444.15 K | -0.19% | 0.21% |
| RUSSELL INVESTMENTS GROUP, LTD. | 11/13/2025 | 326.57 K | $429.28 K | 56.36% | 0.20% |
| GSA CAPITAL PARTNERS LLP | 11/07/2025 | 309.53 K | $405.00 K | -57.06% | 0.19% |
| SAVANT CAPITAL, LLC | 11/05/2025 | 309.07 K | $404.88 K | 15.42% | 0.19% |
| ROYCE & ASSOCIATES LP | 11/12/2025 | 300.62 K | $393.81 K | -40.60% | 0.19% |
| BARCLAYS PLC | 11/12/2025 | 297.32 K | $389.49 K | -18.64% | 0.18% |
| TOROSO INVESTMENTS, LLC | 11/14/2025 | 294.24 K | $385.45 K | -5.11% | 0.18% |
| MILLENNIUM MANAGEMENT LLC | 11/14/2025 | 250.12 K | $327.66 K | 159.64% | 0.15% |
| CWM, LLC | 10/15/2025 | 232.79 K | $305.00 K | 27.36% | 0.14% |
| RHUMBLINE ADVISERS | 11/06/2025 | 223.23 K | $292.42 K | 3.53% | 0.14% |
| OMERS ADMINISTRATION CORP | 11/14/2025 | 215.11 K | $281.79 K | 0.00% | 0.13% |
| ALLIANCEBERNSTEIN L.P. | 11/14/2025 | 199.52 K | $261.37 K | 0.00% | 0.12% |
| EXCHANGE TRADED CONCEPTS, LLC | 10/14/2025 | 195.73 K | $256.41 K | -42.69% | 0.12% |
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Ironwood Pharmaceuticals, Inc. institutional Ownership - FAQ's
During the previous two years, 267 institutional investors and hedge funds held shares of Ironwood Pharmaceuticals, Inc.. The most heavily invested institutionals were:
ARMISTICE CAPITAL, LLC: 16.15 M
VANGUARD GROUP INC: 16.07 M
Sarissa Capital Management LP: 15.92 M
BlackRock, Inc.: 12.06 M
BANK OF AMERICA CORP /DE/: 11.7 M
RENAISSANCE TECHNOLOGIES LLC: 8.35 M
92.10% of Ironwood Pharmaceuticals, Inc. stock is owned by institutional investors.
Institutional investors have bought a total of 198.33 M shares in the last 24 months. This purchase volume represents approximately $307.41 M in transactions.