IRONWOOD PHARMACEUTICALS INC IRWD
$4.33
+5.1% 52w: $0.67 – $5.39
Latest 13F among current holders filed 11 days ago (Jun 24, 2026)
Price — last 12 months
research preview data0.673.035.39
Jun 20, 2025 Jul 2, 2026
Institutional holders
226
+27 QoQ
13F value
$566.7M
+8.9% QoQ
Smart-money holders
6
signal tier ≥ 2
New smart buyers
2
Q1 2026
Options barometer
19.5×
$40.7M calls / $2.1M puts
Institutional value by quarter
Number of holders
Who owns IRWD?
Q1 2026 filings| Fund | Type | Shares | Value | % of fund | Change |
|---|---|---|---|---|---|
| ARMISTICE CAPITAL, LLC | Quant stat arb | 15.0M | $52.7M | 1.7% | -6.2% |
| BlackRock, Inc. | Index provider | 13.4M | $46.9M | 0.0% | +4.5% |
| Sarissa Capital Management LP ★3 | Fundamental concentrated | 9.2M | $32.3M | 20.5% | -42.3% |
| BANK OF AMERICA CORP /DE/ | Bank broker | 8.7M | $30.5M | 0.0% | -24.6% |
| RENAISSANCE TECHNOLOGIES LLC | Quant stat arb | 8.1M | $28.3M | 0.0% | -1.8% |
| AQR CAPITAL MANAGEMENT LLC | Quant stat arb | 7.5M | $26.4M | 0.0% | +59.5% |
| STATE STREET CORP | Index provider | 7.5M | $26.2M | 0.0% | +69.0% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Diversified mechanical | 6.7M | $23.5M | 0.0% | — |
| ACADIAN ASSET MANAGEMENT LLC | Quant stat arb | 6.6M | $23.1M | 0.0% | +1.8% |
| VANGUARD CAPITAL MANAGEMENT LLC | Diversified mechanical | 6.1M | $21.4M | 0.0% | — |
| TWO SIGMA INVESTMENTS, LP | Quant stat arb | 5.8M | $20.5M | 0.0% | +105.0% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Index provider | 4.7M | $16.6M | 0.0% | -4.8% |
| GEODE CAPITAL MANAGEMENT, LLC | Index provider | 4.5M | $16.0M | 0.0% | +25.4% |
| MARSHALL WACE, LLP | Quant stat arb | 4.5M | $15.9M | 0.0% | +2.3% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Other | 3.6M | $12.7M | 0.1% | +31.6% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Quant stat arb | 3.4M | $11.9M | 0.0% | +724.5% |
| FEDERATED HERMES, INC. | Diversified mechanical | 3.3M | $11.8M | 0.0% | +0.9% |
| GOLDMAN SACHS GROUP INC | Bank broker | 2.7M | $9.4M | 0.0% | +111.0% |
| DIMENSIONAL FUND ADVISORS LP | Quant stat arb | 2.1M | $7.3M | 0.0% | +529.3% |
| Connor, Clark & Lunn Investment Management Ltd. | Diversified mechanical | 1.8M | $6.4M | 0.0% | -7.8% |
| Qube Research & Technologies Ltd | Quant stat arb | 1.6M | $5.6M | 0.0% | -5.4% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Market maker | 1.5M | $5.2M | 0.0% | +228.0% |
| NORTHERN TRUST CORP | Index provider | 1.3M | $4.4M | 0.0% | +2.6% |
| Hillsdale Investment Management Inc. | Other | 1.2M | $4.3M | 0.1% | +6.9% |
| Pacer Advisors, Inc. | Diversified mechanical | 1.1M | $4.0M | 0.0% | New |
| DEUTSCHE BANK AG\ | Bank broker | 1.1M | $3.9M | 0.0% | +1.4% |
| VANGUARD FIDUCIARY TRUST CO | Diversified mechanical | 988.6K | $3.5M | 0.0% | — |
| UBS Group AG | Bank broker | 933.2K | $3.3M | 0.0% | +82.8% |
| MORGAN STANLEY | Bank broker | 824.8K | $2.9M | 0.0% | +11.5% |
| FMR LLC | Long only active | 790.4K | $2.8M | 0.0% | +15.1% |
| RAYMOND JAMES FINANCIAL INC | Bank broker | 764.0K | $2.7M | 0.0% | -12.2% |
| FRANKLIN RESOURCES INC | Long only active | 744.6K | $2.6M | 0.0% | +93.1% |
| IEQ CAPITAL, LLC | Diversified mechanical | 742.7K | $2.6M | 0.0% | +17.3% |
| SEI INVESTMENTS CO | Diversified mechanical | 742.5K | $2.6M | 0.0% | +10.2% |
| VICTORY CAPITAL MANAGEMENT INC | Diversified mechanical | 713.2K | $2.5M | 0.0% | +3852.9% |
| GSA CAPITAL PARTNERS LLP | Diversified mechanical | 654.4K | $2.3M | 0.1% | +14.5% |
| JANE STREET GROUP, LLC | Market maker | 622.2K | $2.2M | 0.0% | -77.9% |
| STATE OF WISCONSIN INVESTMENT BOARD | Diversified mechanical | 598.2K | $2.1M | 0.0% | +232.2% |
| Vanguard Global Advisers, LLC | Diversified mechanical | 591.5K | $2.1M | 0.0% | — |
| MACKENZIE FINANCIAL CORP | Diversified mechanical | 560.0K | $2.0M | 0.0% | +4751.3% |
| Integrated Quantitative Investments LLC | Quant stat arb | 552.1K | $1.9M | 0.4% | +437.8% |
| Invesco Ltd. | Index provider | 547.4K | $1.9M | 0.0% | +21.8% |
| Man Group plc | Quant stat arb | 540.9K | $1.9M | 0.0% | +1034.9% |
| WEDGE CAPITAL MANAGEMENT L L P/NC | Other | 540.5K | $1.9M | 0.0% | New |
| Inspire Investing, LLC | Other | 509.9K | $1.8M | 0.1% | New |
| LOS ANGELES CAPITAL MANAGEMENT LLC | Diversified mechanical | 509.2K | $1.8M | 0.0% | -19.7% |
| Bank of New York Mellon Corp | Diversified mechanical | 484.0K | $1.7M | 0.0% | -5.1% |
| MILLENNIUM MANAGEMENT LLC | Multistrat pod | 457.1K | $1.6M | 0.0% | -18.5% |
| WELLINGTON MANAGEMENT GROUP LLP | Long only active | 453.5K | $1.6M | 0.0% | -10.0% |
| PRUDENTIAL FINANCIAL INC | Insurance | 449.8K | $1.6M | 0.0% | +218.7% |
Exits are not a bearish signal: our backtest shows stocks specialists exit keep outperforming for 3+ quarters — selling usually means profit-taking, not a forecast.
Explore related
Top funds holding IRWD
More healthcare stocks held by institutions