Ironwood Pharmaceuticals Inc Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| ARMISTICE CAPITAL, LLC | 05/15/2026 | 15.03 M | $52.75 M | -6.22% | 9.26% |
| BLACKROCK, INC. | 05/13/2026 | 13.36 M | $46.90 M | 4.52% | 8.24% |
| UBS GROUP AG | 05/05/2026 | 11.20 M | $39.31 M | 0.00% | 6.90% |
| SARISSA CAPITAL MANAGEMENT LP | 05/15/2026 | 9.19 M | $32.25 M | -42.28% | 5.66% |
| BANK OF AMERICA CORP /DE/ | 05/18/2026 | 8.68 M | $30.48 M | -24.64% | 5.35% |
| RENAISSANCE TECHNOLOGIES LLC | 05/14/2026 | 8.06 M | $28.29 M | -1.75% | 4.97% |
| AQR CAPITAL MANAGEMENT LLC | 05/15/2026 | 7.54 M | $26.45 M | 59.52% | 4.65% |
| STATE STREET CORP | 05/15/2026 | 7.46 M | $26.17 M | 69.04% | 4.60% |
| 05/08/2026 | 6.68 M | $23.45 M | 100.00% | 4.12% | |
| ACADIAN ASSET MANAGEMENT LLC | 05/13/2026 | 6.58 M | $23.07 M | 1.85% | 4.05% |
| 05/15/2026 | 6.10 M | $21.40 M | 100.00% | 3.76% | |
| TWO SIGMA INVESTMENTS, LP | 05/15/2026 | 5.85 M | $20.53 M | 104.97% | 3.61% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 05/15/2026 | 4.74 M | $16.63 M | -4.78% | 2.92% |
| GEODE CAPITAL MANAGEMENT, LLC | 05/15/2026 | 4.54 M | $15.95 M | 25.39% | 2.80% |
| MARSHALL WACE, LLP | 05/15/2026 | 4.53 M | $15.88 M | 2.28% | 2.79% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 05/15/2026 | 3.63 M | $12.75 M | 31.63% | 2.24% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 05/14/2026 | 3.40 M | $11.92 M | 724.45% | 2.09% |
| FEDERATED HERMES, INC. | 05/11/2026 | 3.35 M | $11.75 M | 0.92% | 2.06% |
| GOLDMAN SACHS GROUP INC | 05/15/2026 | 2.69 M | $9.44 M | 110.98% | 1.66% |
| DIMENSIONAL FUND ADVISORS LP | 05/07/2026 | 2.08 M | $7.31 M | 529.33% | 1.28% |
| CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD. | 05/11/2026 | 1.84 M | $6.44 M | -7.81% | 1.13% |
| QUBE RESEARCH & TECHNOLOGIES LTD | 05/15/2026 | 1.59 M | $5.58 M | -5.42% | 0.98% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 05/15/2026 | 1.47 M | $5.17 M | 228.02% | 0.91% |
| NORTHERN TRUST CORP | 05/14/2026 | 1.27 M | $4.44 M | 2.61% | 0.78% |
| HILLSDALE INVESTMENT MANAGEMENT INC. | 05/04/2026 | 1.24 M | $4.34 M | 6.94% | 0.76% |
| PACER ADVISORS, INC. | 06/18/2026 | 1.13 M | $3.98 M | 100.00% | 0.70% |
| DEUTSCHE BANK AG\ | 05/06/2026 | 1.12 M | $3.95 M | 1.36% | 0.69% |
| VANGUARD FIDUCIARY TRUST CO | 05/08/2026 | 988.63 K | $3.47 M | 100.00% | 0.61% |
| UBS GROUP AG | 05/05/2026 | 933.23 K | $3.28 M | 82.79% | 0.58% |
| MORGAN STANLEY | 05/15/2026 | 824.82 K | $2.90 M | 11.51% | 0.51% |
| FMR LLC | 05/15/2026 | 790.39 K | $2.77 M | 15.09% | 0.49% |
| RAYMOND JAMES FINANCIAL INC | 05/14/2026 | 763.96 K | $2.68 M | -12.17% | 0.47% |
| FRANKLIN RESOURCES INC | 05/13/2026 | 744.64 K | $2.61 M | 93.12% | 0.46% |
| IEQ CAPITAL, LLC | 05/15/2026 | 742.72 K | $2.61 M | 17.29% | 0.46% |
| SEI INVESTMENTS CO | 05/13/2026 | 742.55 K | $2.61 M | 10.19% | 0.46% |
| VICTORY CAPITAL MANAGEMENT INC | 05/15/2026 | 713.19 K | $2.50 M | 3,852.93% | 0.44% |
| GSA CAPITAL PARTNERS LLP | 05/08/2026 | 654.45 K | $2.30 M | 14.49% | 0.40% |
| JANE STREET GROUP, LLC | 05/12/2026 | 622.25 K | $2.18 M | -77.93% | 0.38% |
| STATE OF WISCONSIN INVESTMENT BOARD | 05/15/2026 | 598.16 K | $2.10 M | 232.24% | 0.37% |
| VANGUARD GLOBAL ADVISERS, LLC | 05/08/2026 | 591.49 K | $2.08 M | 100.00% | 0.36% |
| MACKENZIE FINANCIAL CORP | 05/13/2026 | 560.03 K | $1.97 M | 4,751.30% | 0.35% |
| INTEGRATED QUANTITATIVE INVESTMENTS LLC | 05/13/2026 | 552.10 K | $1.94 M | 437.83% | 0.34% |
| INVESCO LTD. | 05/12/2026 | 547.36 K | $1.92 M | 21.85% | 0.34% |
| MAN GROUP PLC | 05/15/2026 | 540.86 K | $1.90 M | 1,034.86% | 0.33% |
| WEDGE CAPITAL MANAGEMENT L L P/NC | 04/13/2026 | 540.49 K | $1.90 M | 100.00% | 0.33% |
| INSPIRE INVESTING, LLC | 04/23/2026 | 509.94 K | $1.79 M | 100.00% | 0.31% |
| LOS ANGELES CAPITAL MANAGEMENT LLC | 05/08/2026 | 509.25 K | $1.79 M | -19.72% | 0.31% |
| BANK OF NEW YORK MELLON CORP | 05/05/2026 | 484.04 K | $1.70 M | -5.13% | 0.30% |
| MILLENNIUM MANAGEMENT LLC | 05/15/2026 | 457.11 K | $1.60 M | -18.48% | 0.28% |
| WELLINGTON MANAGEMENT GROUP LLP | 05/15/2026 | 453.52 K | $1.59 M | -10.01% | 0.28% |
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Ironwood Pharmaceuticals Inc institutional Ownership - FAQ's
During the previous two years, 330 institutional investors and hedge funds held shares of Ironwood Pharmaceuticals Inc. The most heavily invested institutionals were:
ARMISTICE CAPITAL, LLC: 15.03 M
BlackRock, Inc.: 13.36 M
Sarissa Capital Management LP: 9.19 M
BANK OF AMERICA CORP /DE/: 8.68 M
RENAISSANCE TECHNOLOGIES LLC: 8.06 M
AQR CAPITAL MANAGEMENT LLC: 7.54 M
99.53% of Ironwood Pharmaceuticals Inc stock is owned by institutional investors.
Institutional investors have bought a total of 217.12 M shares in the last 24 months. This purchase volume represents approximately $792.50 M in transactions.