Fund shareholders of Ironwood Pharmaceuticals Inc
ISIN US46333X1081 · United States · LEI 549300PC8MR6QHH6P296
- Fund shareholders
- 205
- Of which ETFs
- 47 158 other funds
- Value held
- ≈ 174.6M $ 174.1M $ · 387.3K €
- Share of capital
- 28.9 % of 165.2M shares on Jul 31, 2026
| Fund | Shares | Value | Weight in fund | Share of capital | |
|---|---|---|---|---|---|
| ProShares Russell 2000 Dynamic Buffer ETF ProShares Trust | 48 | 164.2 $ | 0.01 % | 0.00 % | as of Feb 28, 2026 ↗ |
| Russell 2000(R) 1.5x Strategy Fund Rydex Variable Trust | 41 | 143.9 $ | 0.01 % | 0.00 % | as of Mar 31, 2026 ↗ |
| GESTION BOUTIQUE IV, FI GESTION BOUTIQUE IV/JPB GLOBAL ALLOCATION ANDBANK WEALTH MANAGEMENT, SGIIC, S.A.U. | 200.8K € | 12.04 % | as of Dec 31, 2025 ↗ | ||
| DASC INVESTMENTS, SICAV S.A. BANKINTER GESTION DE ACTIVOS, S.A., S.G.I.I.C. | 114.7K € | 2.26 % | as of Dec 31, 2025 ↗ | ||
| GESTION BOUTIQUE II, FI GESTION BOUTIQUE II/JPB GROWTH ANDBANK WEALTH MANAGEMENT, SGIIC, S.A.U. | 71.7K € | 2.82 % | as of Dec 31, 2025 ↗ |
The funds most exposed to it
The weight is the share of a fund's net assets. The holders table ranks funds by number of shares. This one ranks them by the weight of the company in each fund.
| Fund | Weight in fund | |
|---|---|---|
| GESTION BOUTIQUE IV, FI GESTION BOUTIQUE IV/JPB GLOBAL ALLOCATION ANDBANK WEALTH MANAGEMENT, SGIIC, S.A.U. | 12.04 % | as of Dec 31, 2025 ↗ |
| GESTION BOUTIQUE II, FI GESTION BOUTIQUE II/JPB GROWTH ANDBANK WEALTH MANAGEMENT, SGIIC, S.A.U. | 2.82 % | as of Dec 31, 2025 ↗ |
| DASC INVESTMENTS, SICAV S.A. BANKINTER GESTION DE ACTIVOS, S.A., S.G.I.I.C. | 2.26 % | as of Dec 31, 2025 ↗ |
| FULLERTHALER BEHAVIORAL MICRO-CAP EQUITY FUND Capitol Series Trust | 1.05 % | as of Mar 31, 2026 ↗ |
| Acquirers Small and Micro Deep Value ETF ETF Series Solutions | 0.98 % | as of Feb 28, 2026 ↗ |
| Virtus Biotech Clinical Trials Etf ETFis Series Trust I | 0.85 % | as of Apr 30, 2026 ↗ |
| Simplify Piper Sandler US Small-Cap PLUS Income ETF Simplify Exchange Traded Funds | 0.70 % | as of Mar 31, 2026 ↗ |
| Amplify Etho Climate Leadership U.S. ETF Amplify ETF Trust | 0.66 % | as of Mar 31, 2026 ↗ |
| Franklin Small Cap Enhanced ETF Franklin Templeton ETF Trust | 0.56 % | as of Mar 31, 2026 ↗ |
| Ultra-Small Company Fund Bridgeway Funds, Inc. | 0.56 % | as of Mar 31, 2026 ↗ |
Quarter after quarter
Each row is one quarter of SEC filings, newest first. The change compares each quarter with the one before.
| Quarter | Shareholders | Change | Shares | Change |
|---|---|---|---|---|
| 2026Q2 | 202 | +31 | 47,705,162 | +22.0 % |
| 2026Q1 | 171 | +30 | 39,097,245 | +8.7 % |
| 2025Q4 | 141 | -4 | 35,963,485 | +1.6 % |
| 2025Q3 | 145 | -25 | 35,410,109 | -0.1 % |
| 2025Q2 | 170 | -51 | 35,433,747 | -45.0 % |
| 2025Q1 | 221 | -7 | 64,470,542 | +10.6 % |
| 2024Q4 | 228 | -21 | 58,277,517 | -19.1 % |
| 2024Q3 | 249 | -31 | 72,018,973 | -6.6 % |
| 2024Q2 | 280 | -19 | 77,105,161 | +13.3 % |
| 2024Q1 | 299 | +7 | 68,076,371 | -0.8 % |
| 2023Q4 | 292 | 68,602,985 |
Institutional managers
219 managers declare this company to the SEC (Form 13F). The table shows the 25 largest.
| Manager | Shares | Value | |
|---|---|---|---|
| ARMISTICE CAPITAL, LLC | 15,028,000 | 52.7M $ | as of Mar 31, 2026 |
| BlackRock, Inc. | 13,362,930 | 46.9M $ | as of Mar 31, 2026 |
| Sarissa Capital Management LP | 9,188,635 | 32.3M $ | as of Mar 31, 2026 |
| BANK OF AMERICA CORP /DE/ | 8,682,907 | 30.5M $ | as of Mar 31, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | 8,061,073 | 28.3M $ | as of Mar 31, 2026 |
| AQR CAPITAL MANAGEMENT LLC | 7,535,080 | 26.4M $ | as of Mar 31, 2026 |
| STATE STREET CORP | 7,456,944 | 26.2M $ | as of Mar 31, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | 6,577,272 | 23.1K $ | as of Mar 31, 2026 |
| TWO SIGMA INVESTMENTS, LP | 5,848,276 | 20.5M $ | as of Mar 31, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 4,737,857 | 16.6M $ | as of Mar 31, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | 4,543,522 | 16M $ | as of Mar 31, 2026 |
| MARSHALL WACE, LLP | 4,525,064 | 15.9M $ | as of Mar 31, 2026 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 3,632,477 | 12.7M $ | as of Mar 31, 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 3,397,242 | 11.9M $ | as of Mar 31, 2026 |
| FEDERATED HERMES, INC. | 3,348,806 | 11.8M $ | as of Mar 31, 2026 |
| GOLDMAN SACHS GROUP INC | 2,690,634 | 9.4M $ | as of Mar 31, 2026 |
| DIMENSIONAL FUND ADVISORS LP | 2,082,055 | 7.3M $ | as of Mar 31, 2026 |
| Connor, Clark & Lunn Investment Management Ltd. | 1,835,424 | 6.4M $ | as of Mar 31, 2026 |
| Qube Research & Technologies Ltd | 1,590,081 | 5.6M $ | as of Mar 31, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1,472,157 | 5.2M $ | as of Mar 31, 2026 |
| NORTHERN TRUST CORP | 1,265,842 | 4.4M $ | as of Mar 31, 2026 |
| Hillsdale Investment Management Inc. | 1,236,628 | 4.3M $ | as of Mar 31, 2026 |
| DEUTSCHE BANK AG\ | 1,124,989 | 3.9M $ | as of Mar 31, 2026 |
| UBS Group AG | 933,225 | 3.3M $ | as of Mar 31, 2026 |
| MORGAN STANLEY | 824,819 | 2.9M $ | as of Mar 31, 2026 |
Declared shareholders of Ironwood Pharmaceuticals Inc
There are 3 beneficial ownership filings. These stakes do not add up. An asset manager that files includes its own funds, which already appear among the funds on this page.
| Shareholder | Declared stake | Shares | |
|---|---|---|---|
| Armistice Capital, LLC and 1 other | 9.22 % | 15,028,000 | as of Mar 31, 2026 · SCHEDULE 13G |
| BANK OF AMERICA CORP /DE/ | 6.10 % | 9,962,355 | as of Mar 31, 2026 · SCHEDULE 13G |
| Renaissance Technologies LLC and 1 other | 4.90 % | 8,061,073 | as of Mar 31, 2026 · SCHEDULE 13G |
Cite this page
Titelia. "Fund shareholders of Ironwood Pharmaceuticals Inc". https://titelia.com/en/stocks/ironwood-pharmaceuticals-inc-US46333X1081