Ironwood Pharmaceuticals Inc Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| BLACKROCK, INC. | 08/07/2026 | 17.79 M | $74.89 M | 33.12% | 10.75% |
| ARMISTICE CAPITAL, LLC | 08/14/2026 | 13.93 M | $58.65 M | -7.29% | 8.42% |
| SARISSA CAPITAL MANAGEMENT LP | 08/14/2026 | 9.19 M | $38.68 M | 0.00% | 5.55% |
| STATE STREET CORP | 09/22/2026 | 8.81 M | $37.09 M | 18.14% | 5.39% |
| BANK OF AMERICA CORP /DE/ | 08/14/2026 | 8.68 M | $36.56 M | 0.01% | 5.25% |
| RENAISSANCE TECHNOLOGIES LLC | 08/13/2026 | 7.99 M | $33.65 M | -0.84% | 4.83% |
| VANGUARD CAPITAL MANAGEMENT LLC | 08/13/2026 | 6.61 M | $27.82 M | 8.38% | 3.99% |
| AQR CAPITAL MANAGEMENT LLC | 08/14/2026 | 6.47 M | $27.22 M | -14.19% | 3.91% |
| ACADIAN ASSET MANAGEMENT LLC | 08/13/2026 | 5.85 M | $24.62 M | -11.01% | 3.54% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 08/13/2026 | 5.51 M | $23.21 M | -17.49% | 3.33% |
| GEODE CAPITAL MANAGEMENT, LLC | 08/12/2026 | 4.83 M | $20.35 M | 6.34% | 2.92% |
| TWO SIGMA INVESTMENTS, LP | 08/14/2026 | 4.56 M | $19.18 M | -22.10% | 2.75% |
| MARSHALL WACE, LLP | 08/13/2026 | 4.29 M | $18.06 M | -5.19% | 2.59% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 08/14/2026 | 4.07 M | $17.12 M | 11.93% | 2.46% |
| GOLDMAN SACHS GROUP INC | 08/14/2026 | 3.31 M | $13.95 M | 23.16% | 2.00% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 08/14/2026 | 3.30 M | $13.90 M | -30.30% | 2.00% |
| SIXTH STREET PARTNERS MANAGEMENT COMPANY, L.P. | 08/14/2026 | 3.30 M | $13.90 M | 100.00% | 2.00% |
| FEDERATED HERMES, INC. | 08/12/2026 | 3.23 M | $13.60 M | -3.51% | 1.95% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 08/13/2026 | 3.02 M | $12.70 M | -11.19% | 1.82% |
| DIMENSIONAL FUND ADVISORS LP | 08/11/2026 | 2.52 M | $10.62 M | 21.17% | 1.52% |
| MACKENZIE FINANCIAL CORP | 08/13/2026 | 2.37 M | $9.97 M | 322.74% | 1.43% |
| MORGAN STANLEY | 08/13/2026 | 1.86 M | $7.83 M | 125.49% | 1.12% |
| CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD. | 08/13/2026 | 1.81 M | $7.63 M | -1.29% | 1.10% |
| NORTHERN TRUST CORP | 08/13/2026 | 1.37 M | $5.78 M | 8.54% | 0.83% |
| HILLSDALE INVESTMENT MANAGEMENT INC. | 08/12/2026 | 1.25 M | $5.26 M | 1.12% | 0.76% |
| WELLS FARGO & COMPANY/MN | 08/14/2026 | 1.21 M | $5.08 M | 1,949.61% | 0.73% |
| DEUTSCHE BANK AG\ | 08/07/2026 | 1.16 M | $4.88 M | 2.95% | 0.70% |
| PACER ADVISORS, INC. | 08/13/2026 | 1.10 M | $4.61 M | -3.44% | 0.66% |
| VANGUARD FIDUCIARY TRUST CO | 08/13/2026 | 1.04 M | $4.38 M | 5.23% | 0.63% |
| FRANKLIN RESOURCES INC | 08/13/2026 | 1.01 M | $4.24 M | 35.23% | 0.61% |
| FMR LLC | 08/13/2026 | 909.49 K | $3.83 M | 15.07% | 0.55% |
| STATE OF WISCONSIN INVESTMENT BOARD | 08/14/2026 | 778.52 K | $3.28 M | 30.15% | 0.47% |
| RAYMOND JAMES FINANCIAL INC | 08/14/2026 | 725.09 K | $3.05 M | -5.09% | 0.44% |
| VICTORY CAPITAL MANAGEMENT INC | 08/07/2026 | 658.46 K | $2.77 M | -7.67% | 0.40% |
| INSPIRE INVESTING, LLC | 08/12/2026 | 630.07 K | $2.65 M | 23.56% | 0.38% |
| HRT FINANCIAL LP | 08/14/2026 | 577.34 K | $2.43 M | 100.00% | 0.35% |
| IEQ CAPITAL, LLC | 08/11/2026 | 561.59 K | $2.36 M | -24.39% | 0.34% |
| VANGUARD GLOBAL ADVISERS, LLC | 08/13/2026 | 561.04 K | $2.36 M | -5.15% | 0.34% |
| PRUDENTIAL FINANCIAL INC | 08/12/2026 | 537.20 K | $2.26 M | 19.42% | 0.32% |
| BANK OF NEW YORK MELLON CORP | 08/06/2026 | 508.88 K | $2.14 M | 5.13% | 0.31% |
| CITADEL ADVISORS LLC | 09/02/2026 | 502.40 K | $2.12 M | 324.77% | 0.30% |
| VOYA INVESTMENT MANAGEMENT LLC | 08/12/2026 | 484.45 K | $2.04 M | 232.23% | 0.29% |
| WELLINGTON MANAGEMENT GROUP LLP | 08/14/2026 | 468.82 K | $1.97 M | 3.38% | 0.28% |
| SEI INVESTMENTS CO | 08/14/2026 | 459.42 K | $1.93 M | -38.13% | 0.28% |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | 08/13/2026 | 438.91 K | $1.85 M | 242.25% | 0.27% |
| WEDGE CAPITAL MANAGEMENT L L P/NC | 07/10/2026 | 435.65 K | $1.83 M | -19.40% | 0.26% |
| SEGALL BRYANT & HAMILL, LLC | 08/12/2026 | 408.06 K | $1.72 M | 46.68% | 0.25% |
| INVESCO LTD. | 08/14/2026 | 403.21 K | $1.70 M | -26.34% | 0.24% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 08/14/2026 | 396.80 K | $1.67 M | 49.29% | 0.24% |
| MAN GROUP PLC | 08/14/2026 | 392.12 K | $1.65 M | -27.50% | 0.24% |
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Ironwood Pharmaceuticals Inc institutional Ownership - FAQ's
During the previous two years, 341 institutional investors and hedge funds held shares of Ironwood Pharmaceuticals Inc. The most heavily invested institutionals were:
Wealth Enhancement Trust Services, Inc.: 0
BlackRock, Inc.: 17.79 M
ARMISTICE CAPITAL, LLC: 13.93 M
Sarissa Capital Management LP: 9.19 M
STATE STREET CORP: 8.81 M
BANK OF AMERICA CORP /DE/: 8.68 M
99.03% of Ironwood Pharmaceuticals Inc stock is owned by institutional investors.
Institutional investors have bought a total of 232.72 M shares in the last 24 months. This purchase volume represents approximately $849.42 M in transactions.