Funds holding Ironwood Pharmaceuticals Inc
205 funds declare a position · 47 ETFs and 158 other funds · 174.1M $· 387.3K € · US46333X1081
Each line carries its report date.
| Rank | Fund | Shares | Value | Weight | |
|---|---|---|---|---|---|
| 1 | VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 4,334,784 | 15.2M $ | 0.00 % | as of Mar 31, 2026 · Original filing |
| 2 | State Street(R) SPDR(R) S&P(R) Biotech ETF SPDR SERIES TRUST | 3,999,224 | 14M $ | 0.19 % | as of Mar 31, 2026 · Original filing |
| 3 | iShares Russell 2000 ETF iShares Trust | 3,957,233 | 13.9M $ | 0.02 % | as of Mar 31, 2026 · Original filing |
| 4 | Schwab Fundamental U.S. Small Company ETF SCHWAB STRATEGIC TRUST | 3,118,051 | 10.7M $ | 0.11 % | as of Feb 28, 2026 · Original filing |
| 5 | VANGUARD STRATEGIC EQUITY FUND VANGUARD HORIZON FUNDS | 2,102,573 | 7.4M $ | 0.07 % | as of Mar 31, 2026 · Original filing |
| 6 | VANGUARD EXPLORER FUND VANGUARD EXPLORER FUND | 1,632,083 | 6.7M $ | 0.03 % | as of Apr 30, 2026 · Original filing |
| 7 | VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 1,612,143 | 5.7M $ | 0.01 % | as of Mar 31, 2026 · Original filing |
| 8 | Fidelity Small Cap Index Fund Fidelity Salem Street Trust | 1,581,187 | 6.5M $ | 0.02 % | as of Apr 30, 2026 · Original filing |
| 9 | Federated Hermes MDT Small Cap Core Fund Federated Hermes MDT Series | 1,286,341 | 5.3M $ | 0.28 % | as of Apr 30, 2026 · Original filing |
| 10 | iShares Russell 2000 Growth ETF iShares Trust | 1,209,938 | 4.2M $ | 0.03 % | as of Mar 31, 2026 · Original filing |
| 11 | iShares Biotechnology ETF iShares Trust | 1,173,471 | 4.1M $ | 0.05 % | as of Mar 31, 2026 · Original filing |
| 12 | Pacer US Small Cap Cash Cows 100 ETF Pacer Funds Trust | 1,123,536 | 4.6M $ | 0.13 % | as of Apr 30, 2026 · Original filing |
| 13 | Bridge Builder Small/Mid Cap Growth Fund Bridge Builder Trust | 901,494 | 3.2M $ | 0.03 % | as of Mar 31, 2026 · Original filing |
| 14 | VANGUARD RUSSELL 2000 INDEX FUND VANGUARD SCOTTSDALE FUNDS | 793,781 | 2.7M $ | 0.02 % | as of Feb 28, 2026 · Original filing |
| 15 | Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 752,944 | 2.6M $ | 0.01 % | as of Feb 28, 2026 · Original filing |
| 16 | Federated Hermes MDT Small Cap Growth Fund Federated Hermes MDT Series | 728,449 | 3M $ | 0.40 % | as of Apr 30, 2026 · Original filing |
| 17 | Schwab U.S. Small-Cap ETF SCHWAB STRATEGIC TRUST | 700,944 | 2.4M $ | 0.01 % | as of Feb 28, 2026 · Original filing |
| 18 | VictoryShares Small Cap Free Cash Flow ETF Victory Portfolios II | 695,161 | 2.4M $ | 0.49 % | as of Mar 31, 2026 · Original filing |
| 19 | Schwab Fundamental U.S. Small Company Index Fund SCHWAB CAPITAL TRUST | 655,733 | 2.7M $ | 0.11 % | as of Apr 30, 2026 · Original filing |
| 20 | Fidelity Enhanced Small Cap ETF Fidelity Covington Trust | 621,720 | 2.2M $ | 0.05 % | as of Mar 31, 2026 · Original filing |
| 21 | U.S. SMALL CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 609,094 | 2.5M $ | 0.01 % | as of Apr 30, 2026 · Original filing |
| 22 | Dimensional U.S. Small Cap ETF Dimensional ETF Trust | 522,300 | 2.2M $ | 0.02 % | as of Apr 30, 2026 · Original filing |
| 23 | U.S. MICRO CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 519,825 | 2.1M $ | 0.03 % | as of Apr 30, 2026 · Original filing |
| 24 | VANGUARD U.S. MOMENTUM FACTOR ETF VANGUARD WELLINGTON FUND | 464,187 | 1.6M $ | 0.11 % | as of Feb 28, 2026 · Original filing |
| 25 | Fidelity Small-Mid Multifactor ETF Fidelity Covington Trust | 450,064 | 1.9M $ | 0.08 % | as of Apr 30, 2026 · Original filing |
| 26 | VANGUARD HEALTH CARE INDEX FUND VANGUARD WORLD FUND | 439,728 | 1.5M $ | 0.01 % | as of Feb 28, 2026 · Original filing |
| 27 | iShares Micro-Cap ETF iShares Trust | 402,901 | 1.4M $ | 0.12 % | as of Mar 31, 2026 · Original filing |
| 28 | Fidelity SAI Small-Mid Cap Momentum Index Fund Fidelity Salem Street Trust | 396,459 | 1.6M $ | 0.04 % | as of Apr 30, 2026 · Original filing |
| 29 | Schwab Small-Cap Index Fund SCHWAB CAPITAL TRUST | 353,372 | 1.5M $ | 0.02 % | as of Apr 30, 2026 · Original filing |
| 30 | VANGUARD U.S. VALUE FACTOR ETF VANGUARD WELLINGTON FUND | 339,290 | 1.2M $ | 0.15 % | as of Feb 28, 2026 · Original filing |
| 31 | Invesco RAFI US 1500 Small-Mid ETF Invesco Exchange-Traded Fund Trust | 329,601 | 1.4M $ | 0.05 % | as of Apr 30, 2026 · Original filing |
| 32 | VANGUARD MARKET NEUTRAL FUND VANGUARD MONTGOMERY FUNDS | 315,160 | 1.1M $ | 0.26 % | as of Mar 31, 2026 · Original filing |
| 33 | VANGUARD STRATEGIC SMALL-CAP EQUITY FUND VANGUARD HORIZON FUNDS | 300,277 | 1.1M $ | 0.04 % | as of Mar 31, 2026 · Original filing |
| 34 | Amplify Etho Climate Leadership U.S. ETF Amplify ETF Trust | 290,771 | 1M $ | 0.66 % | as of Mar 31, 2026 · Original filing |
| 35 | Master Small Cap Index Series Quantitative Master Series LLC | 272,189 | 955.4K $ | 0.02 % | as of Mar 31, 2026 · Original filing |
| 36 | PGIM Quant Solutions Small-Cap Value Fund Target Portfolio Trust | 267,100 | 1.1M $ | 0.27 % | as of Apr 30, 2026 · Original filing |
| 37 | Fidelity Total Market Index Fund Fidelity Concord Street Trust | 263,403 | 900.8K $ | 0.00 % | as of Feb 28, 2026 · Original filing |
| 38 | Federated Hermes MDT Small Cap Value Fund f/k/a Federated Hermes Clover Small Value Fund Federated Hermes Equity Funds | 234,792 | 824.1K $ | 0.55 % | as of Mar 31, 2026 · Original filing |
| 39 | Direxion Daily S&P Biotech Bull 3X Shares Direxion Shares ETF Trust | 233,156 | 961.8K $ | 0.19 % | as of Apr 30, 2026 · Original filing |
| 40 | Fidelity Series Total Market Index Fund Fidelity Concord Street Trust | 208,927 | 714.5K $ | 0.00 % | as of Feb 28, 2026 · Original filing |
| 41 | SIMT Tax-Managed Small/Mid Cap Fund SEI INSTITUTIONAL MANAGED TRUST | 200,839 | 704.9K $ | 0.10 % | as of Mar 31, 2026 · Original filing |
| 42 | Small-Cap Value Fund Bridgeway Funds, Inc. | 200,000 | 702K $ | 0.23 % | as of Mar 31, 2026 · Original filing |
| 43 | SMALL CAP EQUITY FUND GuideStone Funds | 196,168 | 688.5K $ | 0.08 % | as of Mar 31, 2026 · Original filing |
| 44 | Nuveen Small Cap Blend Index Fund TIAA-CREF Funds | 191,558 | 790.2K $ | 0.02 % | as of Apr 30, 2026 · Original filing |
| 45 | iShares Core S&P Total U.S. Stock Market ETF iShares Trust | 191,501 | 672.2K $ | 0.00 % | as of Mar 31, 2026 · Original filing |
| 46 | SIMT Small Cap Fund SEI INSTITUTIONAL MANAGED TRUST | 188,195 | 660.6K $ | 0.15 % | as of Mar 31, 2026 · Original filing |
| 47 | State Street(R) SPDR(R) US Small Cap Low Volatility Index ETF SPDR SERIES TRUST | 187,263 | 657.3K $ | 0.24 % | as of Mar 31, 2026 · Original filing |
| 48 | Distillate Small/Mid Cash Flow ETF ETF Series Solutions | 184,337 | 647K $ | 0.54 % | as of Mar 31, 2026 · Original filing |
| 49 | Franklin Small Cap Enhanced ETF Franklin Templeton ETF Trust | 180,914 | 635K $ | 0.56 % | as of Mar 31, 2026 · Original filing |
| 50 | AQR Small Cap Multi-Style Fund AQR Funds | 175,093 | 614.6K $ | 0.41 % | as of Mar 31, 2026 · Original filing |
| 51 | iShares U.S. Small-Cap Equity Factor ETF iShares Trust | 167,205 | 689.7K $ | 0.02 % | as of Apr 30, 2026 · Original filing |
| 52 | EQ/2000 Managed Volatility Portfolio EQ Advisors Trust | 162,335 | 569.8K $ | 0.02 % | as of Mar 31, 2026 · Original filing |
| 53 | Strategic Advisers U.S. Total Stock Fund Fidelity Rutland Square Trust II | 156,444 | 535K $ | 0.00 % | as of Feb 28, 2026 · Original filing |
| 54 | SEI Select Small Cap ETF SEI EXCHANGE TRADED FUNDS | 155,808 | 546.9K $ | 0.13 % | as of Mar 31, 2026 · Original filing |
| 55 | VIP Disciplined Small Cap Portfolio Variable Insurance Products Fund II | 139,320 | 489K $ | 0.09 % | as of Mar 31, 2026 · Original filing |
| 56 | Ultra-Small Company Fund Bridgeway Funds, Inc. | 135,993 | 477.3K $ | 0.56 % | as of Mar 31, 2026 · Original filing |
| 57 | VANGUARD RUSSELL 2000 GROWTH INDEX FUND VANGUARD SCOTTSDALE FUNDS | 134,563 | 460.2K $ | 0.03 % | as of Feb 28, 2026 · Original filing |
| 58 | Fidelity Small Cap Growth Index Fund Fidelity Salem Street Trust | 111,900 | 392.8K $ | 0.03 % | as of Mar 31, 2026 · Original filing |
| 59 | PACE Small/Medium Co Growth Equity Investments PACE SELECT ADVISORS TRUST | 107,812 | 444.7K $ | 0.18 % | as of Apr 30, 2026 · Original filing |
| 60 | iShares Russell 2000 Value ETF iShares Trust | 107,653 | 377.9K $ | 0.00 % | as of Mar 31, 2026 · Original filing |
| 61 | LVIP SSGA Small-Cap Index Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 106,972 | 375.5K $ | 0.02 % | as of Mar 31, 2026 · Original filing |
| 62 | SIIT SMALL CAP II FUND SEI INSTITUTIONAL INVESTMENTS TRUST | 105,203 | 359.8K $ | 0.14 % | as of Feb 28, 2026 · Original filing |
| 63 | Putnam Dynamic Asset Allocation Growth Fund Putnam Asset Allocation Funds | 104,715 | 367.5K $ | 0.01 % | as of Mar 31, 2026 · Original filing |
| 64 | Ultra-Small Company Market Fund Bridgeway Funds, Inc. | 104,500 | 366.8K $ | 0.30 % | as of Mar 31, 2026 · Original filing |
| 65 | Dimensional U.S. Core Equity 2 ETF Dimensional ETF Trust | 100,870 | 416.1K $ | 0.00 % | as of Apr 30, 2026 · Original filing |
| 66 | Multi-Manager Small Cap Equity Strategies Fund COLUMBIA FUNDS SERIES TRUST I | 99,216 | 339.3K $ | 0.03 % | as of Feb 28, 2026 · Original filing |
| 67 | Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust | 99,113 | 339K $ | 0.00 % | as of Feb 28, 2026 · Original filing |
| 68 | SMALL COMPANY GROWTH PORTFOLIO VANGUARD VARIABLE INSURANCE FUNDS | 97,672 | 342.8K $ | 0.02 % | as of Mar 31, 2026 · Original filing |
| 69 | EQ/Small Company Index Portfolio EQ Advisors Trust | 96,380 | 338.3K $ | 0.02 % | as of Mar 31, 2026 · Original filing |
| 70 | BlackRock Advantage Small Cap Growth Fund BlackRock Funds | 95,894 | 336.6K $ | 0.05 % | as of Mar 31, 2026 · Original filing |
| 71 | Schwab Total Stock Market Index Fund SCHWAB CAPITAL TRUST | 95,218 | 392.8K $ | 0.00 % | as of Apr 30, 2026 · Original filing |
| 72 | U.S. CORE EQUITY 2 PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 88,288 | 364.2K $ | 0.00 % | as of Apr 30, 2026 · Original filing |
| 73 | SIMT Small Cap Growth Fund SEI INSTITUTIONAL MANAGED TRUST | 86,563 | 303.8K $ | 0.11 % | as of Mar 31, 2026 · Original filing |
| 74 | Schwab U.S. Broad Market ETF SCHWAB STRATEGIC TRUST | 85,432 | 292.2K $ | 0.00 % | as of Feb 28, 2026 · Original filing |
| 75 | WisdomTree U.S. SmallCap Fund WisdomTree Trust | 84,314 | 295.9K $ | 0.05 % | as of Mar 31, 2026 · Original filing |
| 76 | VANGUARD BALANCED INDEX FUND VANGUARD VALLEY FORGE FUNDS | 77,833 | 273.2K $ | 0.00 % | as of Mar 31, 2026 · Original filing |
| 77 | Virtus Biotech Clinical Trials Etf ETFis Series Trust I | 77,097 | 318K $ | 0.85 % | as of Apr 30, 2026 · Original filing |
| 78 | Acquirers Small and Micro Deep Value ETF ETF Series Solutions | 76,554 | 261.8K $ | 0.98 % | as of Feb 28, 2026 · Original filing |
| 79 | Fidelity ZERO Total Market Index Fund Fidelity Concord Street Trust | 75,257 | 310.4K $ | 0.00 % | as of Apr 30, 2026 · Original filing |
| 80 | Putnam Dynamic Asset Allocation Balanced Fund Putnam Asset Allocation Funds | 72,370 | 254K $ | 0.01 % | as of Mar 31, 2026 · Original filing |
| 81 | BIOTECHNOLOGY ULTRASECTOR PROFUND ProFunds | 72,159 | 297.7K $ | 0.16 % | as of Apr 30, 2026 · Original filing |
| 82 | VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND VANGUARD INSTITUTIONAL INDEX FUNDS | 71,834 | 252.1K $ | 0.00 % | as of Mar 31, 2026 · Original filing |
| 83 | Franklin U.S. Small Cap Equity Fund Legg Mason Global Asset Management Trust | 71,170 | 249.8K $ | 0.21 % | as of Mar 31, 2026 · Original filing |
| 84 | Clearwater Select Equity Fund Clearwater Investment Trust | 70,763 | 248.4K $ | 0.06 % | as of Mar 31, 2026 · Original filing |
| 85 | Small Cap Index Fund Northern Funds | 70,326 | 246.8K $ | 0.02 % | as of Mar 31, 2026 · Original filing |
| 86 | Global X Russell 2000 ETF GLOBAL X FUNDS | 69,316 | 285.9K $ | 0.02 % | as of Apr 30, 2026 · Original filing |
| 87 | Small Cap Index Fund VALIC Co I | 67,249 | 230K $ | 0.02 % | as of Feb 28, 2026 · Original filing |
| 88 | FULLERTHALER BEHAVIORAL MICRO-CAP EQUITY FUND Capitol Series Trust | 66,100 | 232K $ | 1.05 % | as of Mar 31, 2026 · Original filing |
| 89 | NVIT Multi-Manager Small Company Fund Nationwide Variable Insurance Trust | 65,247 | 229K $ | 0.06 % | as of Mar 31, 2026 · Original filing |
| 90 | NVIT Small Cap Value Fund Nationwide Variable Insurance Trust | 61,732 | 216.7K $ | 0.11 % | as of Mar 31, 2026 · Original filing |
| 91 | LVIP Franklin Templeton Multi-Factor SMID Cap Equity Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 61,664 | 216.4K $ | 0.02 % | as of Mar 31, 2026 · Original filing |
| 92 | Virtus Small-Cap Fund Virtus Investment Trust | 58,000 | 203.6K $ | 0.19 % | as of Mar 31, 2026 · Original filing |
| 93 | STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO STATE STREET INSTITUTIONAL INVESTMENT TRUST | 54,778 | 192.3K $ | 0.01 % | as of Mar 31, 2026 · Original filing |
| 94 | Allspring Disciplined Small Cap Fund ALLSPRING FUNDS TRUST | 50,972 | 178.9K $ | 0.13 % | as of Mar 31, 2026 · Original filing |
| 95 | Fidelity ZERO Extended Market Index Fund Fidelity Concord Street Trust | 50,348 | 207.7K $ | 0.01 % | as of Apr 30, 2026 · Original filing |
| 96 | ATM Small Cap Managed Volatility Portfolio EQ Advisors Trust | 47,946 | 168.3K $ | 0.02 % | as of Mar 31, 2026 · Original filing |
| 97 | JPMorgan Diversified Return U.S. Small Cap Equity ETF J.P. Morgan Exchange-Traded Fund Trust | 43,650 | 180.1K $ | 0.03 % | as of Apr 30, 2026 · Original filing |
| 98 | EQ/AB Small Cap Growth Portfolio EQ Advisors Trust | 43,550 | 152.9K $ | 0.01 % | as of Mar 31, 2026 · Original filing |
| 99 | Small-Cap Index Portfolio PACIFIC SELECT FUND | 43,149 | 151.5K $ | 0.02 % | as of Mar 31, 2026 · Original filing |
| 100 | iShares Russell 3000 ETF iShares Trust | 40,807 | 143.2K $ | 0.00 % | as of Mar 31, 2026 · Original filing |
Institutional managers
219 managers declare this company to the SEC (Form 13F). These positions are not counted in the totals above: a manager and its own funds file separately.
| 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 |
| 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 |
| FMR LLC | 790,386 | 2.8M $ | as of Mar 31, 2026 |