Funds holding MBX Biosciences Inc
166 funds declare a position · 37 ETFs and 129 other funds · 313.3M $ · US55287L1017
Each line carries its report date.
| Rank | Fund | Shares | Value | Weight | |
|---|---|---|---|---|---|
| 1 | VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 1,158,775 | 34.6M $ | 0.00 % | as of Mar 31, 2026 · Original filing |
| 2 | Eventide Healthcare & Life Sciences Fund MUTUAL FUND SERIES TRUST | 890,000 | 26.6M $ | 1.67 % | as of Mar 31, 2026 · Original filing |
| 3 | T. Rowe Price Health Sciences Fund, Inc. T. ROWE PRICE HEALTH SCIENCES FUND, INC. | 721,309 | 21.5M $ | 0.20 % | as of Mar 31, 2026 · Original filing |
| 4 | iShares Russell 2000 ETF iShares Trust | 697,653 | 20.8M $ | 0.03 % | as of Mar 31, 2026 · Original filing |
| 5 | Fidelity Stock Selector Small Cap Fund Fidelity Capital Trust | 419,900 | 12.7M $ | 0.18 % | as of Apr 30, 2026 · Original filing |
| 6 | BlackRock Health Sciences Opportunities Portfolio BlackRock Funds | 333,350 | 10.9M $ | 0.17 % | as of Feb 27, 2026 · Original filing |
| 7 | Fidelity Fund Fidelity Hastings Street Trust | 321,100 | 9.6M $ | 0.11 % | as of Mar 31, 2026 · Original filing |
| 8 | Fidelity Advisor Biotechnology Fund Fidelity Advisor Series VII | 304,600 | 9.2M $ | 0.48 % | as of Apr 30, 2026 · Original filing |
| 9 | Fidelity Small Cap Growth Fund Fidelity Securities Fund | 301,640 | 9.1M $ | 0.11 % | as of Apr 30, 2026 · Original filing |
| 10 | Fidelity Advisor Health Care Fund Fidelity Advisor Series VII | 300,000 | 9.1M $ | 0.31 % | as of Apr 30, 2026 · Original filing |
| 11 | Fidelity Series Small Cap Opportunities Fund Fidelity Securities Fund | 294,900 | 8.9M $ | 0.18 % | as of Apr 30, 2026 · Original filing |
| 12 | VIP Contrafund Portfolio Variable Insurance Products Fund II | 286,900 | 8.6M $ | 0.03 % | as of Mar 31, 2026 · Original filing |
| 13 | VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 282,920 | 8.4M $ | 0.01 % | as of Mar 31, 2026 · Original filing |
| 14 | Fidelity Small Cap Index Fund Fidelity Salem Street Trust | 281,973 | 8.5M $ | 0.03 % | as of Apr 30, 2026 · Original filing |
| 15 | Select Health Care Portfolio Fidelity Select Portfolios | 280,000 | 9.1M $ | 0.15 % | as of Feb 28, 2026 · Original filing |
| 16 | iShares Russell 2000 Value ETF iShares Trust | 243,159 | 7.3M $ | 0.06 % | as of Mar 31, 2026 · Original filing |
| 17 | State Street(R) SPDR(R) S&P(R) Pharmaceuticals ETF SPDR SERIES TRUST | 200,744 | 6M $ | 1.95 % | as of Mar 31, 2026 · Original filing |
| 18 | iShares Biotechnology ETF iShares Trust | 199,599 | 6M $ | 0.07 % | as of Mar 31, 2026 · Original filing |
| 19 | Fidelity Small Cap Growth K6 Fund Fidelity Securities Fund | 152,210 | 4.6M $ | 0.11 % | as of Apr 30, 2026 · Original filing |
| 20 | VANGUARD RUSSELL 2000 INDEX FUND VANGUARD SCOTTSDALE FUNDS | 141,110 | 4.6M $ | 0.03 % | as of Feb 28, 2026 · Original filing |
| 21 | Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 131,136 | 4.3M $ | 0.01 % | as of Feb 28, 2026 · Original filing |
| 22 | Schwab U.S. Small-Cap ETF SCHWAB STRATEGIC TRUST | 121,577 | 4M $ | 0.02 % | as of Feb 28, 2026 · Original filing |
| 23 | Driehaus Micro Cap Growth Fund Driehaus Mutual Funds | 114,123 | 3.4M $ | 0.74 % | as of Mar 31, 2026 · Original filing |
| 24 | THE HARTFORD SMALL COMPANY FUND HARTFORD MUTUAL FUNDS, INC | 103,777 | 3.1M $ | 0.47 % | as of Apr 30, 2026 · Original filing |
| 25 | iShares Micro-Cap ETF iShares Trust | 71,759 | 2.1M $ | 0.18 % | as of Mar 31, 2026 · Original filing |
| 26 | iShares U.S. Pharmaceuticals ETF iShares Trust | 70,280 | 2.1M $ | 0.21 % | as of Mar 31, 2026 · Original filing |
| 27 | VictoryShares US Small Mid Cap Value Momentum ETF Victory Portfolios II | 67,965 | 2M $ | 0.14 % | as of Mar 31, 2026 · Original filing |
| 28 | VANGUARD HEALTH CARE INDEX FUND VANGUARD WORLD FUND | 67,179 | 2.2M $ | 0.01 % | as of Feb 28, 2026 · Original filing |
| 29 | Adara Smaller Companies Fund RBB Fund, Inc. | 67,071 | 2.2M $ | 0.29 % | as of Feb 28, 2026 · Original filing |
| 30 | Fidelity Advisor New Insights Fund Fidelity Contrafund | 63,900 | 1.9M $ | 0.01 % | as of Mar 31, 2026 · Original filing |
| 31 | Schwab Small-Cap Index Fund SCHWAB CAPITAL TRUST | 62,087 | 1.9M $ | 0.03 % | as of Apr 30, 2026 · Original filing |
| 32 | Fidelity Small Cap Discovery Fund Fidelity Concord Street Trust | 54,300 | 1.6M $ | 0.07 % | as of Apr 30, 2026 · Original filing |
| 33 | VANGUARD U.S. MOMENTUM FACTOR ETF VANGUARD WELLINGTON FUND | 51,855 | 1.7M $ | 0.12 % | as of Feb 28, 2026 · Original filing |
| 34 | VIP Health Care Portfolio Variable Insurance Products Fund IV | 50,000 | 1.5M $ | 0.15 % | as of Mar 31, 2026 · Original filing |
| 35 | Fidelity Series Small Cap Discovery Fund Fidelity Concord Street Trust | 47,700 | 1.4M $ | 0.07 % | as of Apr 30, 2026 · Original filing |
| 36 | Fidelity Total Market Index Fund Fidelity Concord Street Trust | 46,624 | 1.5M $ | 0.00 % | as of Feb 28, 2026 · Original filing |
| 37 | Master Small Cap Index Series Quantitative Master Series LLC | 44,972 | 1.3M $ | 0.03 % | as of Mar 31, 2026 · Original filing |
| 38 | T. Rowe Price Health Sciences Portfolio T. ROWE PRICE EQUITY SERIES, INC. | 44,028 | 1.3M $ | 0.20 % | as of Mar 31, 2026 · Original filing |
| 39 | JPMorgan Small Cap Value Fund JPMorgan Trust II | 43,250 | 1.3M $ | 0.11 % | as of Mar 31, 2026 · Original filing |
| 40 | Dimensional U.S. Small Cap ETF Dimensional ETF Trust | 40,965 | 1.2M $ | 0.01 % | as of Apr 30, 2026 · Original filing |
| 41 | ALPS Medical Breakthroughs ETF ALPS ETF TRUST | 40,022 | 1.3M $ | 0.94 % | as of Feb 28, 2026 · Original filing |
| 42 | iShares Core S&P Total U.S. Stock Market ETF iShares Trust | 39,697 | 1.2M $ | 0.00 % | as of Mar 31, 2026 · Original filing |
| 43 | Fidelity Enhanced Small Cap ETF Fidelity Covington Trust | 38,070 | 1.1M $ | 0.03 % | as of Mar 31, 2026 · Original filing |
| 44 | Fidelity Series Total Market Index Fund Fidelity Concord Street Trust | 36,673 | 1.2M $ | 0.00 % | as of Feb 28, 2026 · Original filing |
| 45 | Fidelity Fundamental Small-Mid Cap ETF Fidelity Covington Trust | 36,306 | 1.1M $ | 0.08 % | as of Apr 30, 2026 · Original filing |
| 46 | Fidelity Small Cap Value Index Fund Fidelity Salem Street Trust | 35,327 | 1.1M $ | 0.06 % | as of Mar 31, 2026 · Original filing |
| 47 | Fidelity Series Opportunistic Insights Fund Fidelity Contrafund | 34,700 | 1M $ | 0.01 % | as of Mar 31, 2026 · Original filing |
| 48 | Nuveen Small Cap Blend Index Fund TIAA-CREF Funds | 34,600 | 1M $ | 0.03 % | as of Apr 30, 2026 · Original filing |
| 49 | Roundhill GLP-1 & Weight Loss ETF Roundhill ETF Trust | 34,264 | 1M $ | 1.99 % | as of Mar 31, 2026 · Original filing |
| 50 | Nuveen Equity Index Fund TIAA-CREF Funds | 32,920 | 994.8K $ | 0.00 % | as of Apr 30, 2026 · Original filing |
| 51 | HARTFORD SMALL COMPANY HLS FUND HARTFORD SERIES FUND INC | 31,399 | 937.3K $ | 0.24 % | as of Mar 31, 2026 · Original filing |
| 52 | EQ/2000 Managed Volatility Portfolio EQ Advisors Trust | 30,573 | 912.6K $ | 0.03 % | as of Mar 31, 2026 · Original filing |
| 53 | Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust | 25,970 | 845.3K $ | 0.00 % | as of Feb 28, 2026 · Original filing |
| 54 | Destinations Small-Mid Cap Equity Fund Brinker Capital Destinations Trust | 25,346 | 825K $ | 0.11 % | as of Feb 28, 2026 · Original filing |
| 55 | JPMorgan U.S. Small Company Fund JPMorgan Trust I | 25,136 | 750.3K $ | 0.08 % | as of Mar 31, 2026 · Original filing |
| 56 | VANGUARD RUSSELL 2000 VALUE INDEX FUND VANGUARD SCOTTSDALE FUNDS | 21,033 | 684.6K $ | 0.06 % | as of Feb 28, 2026 · Original filing |
| 57 | Avantis U.S. Small Cap Equity ETF American Century ETF Trust | 20,222 | 658.2K $ | 0.03 % | as of Feb 28, 2026 · Original filing |
| 58 | Small Cap Stock Trust John Hancock Variable Insurance Trust | 19,872 | 593.2K $ | 0.24 % | as of Mar 31, 2026 · Original filing |
| 59 | Health Sciences Portfolio PACIFIC SELECT FUND | 19,741 | 589.3K $ | 0.17 % | as of Mar 31, 2026 · Original filing |
| 60 | VANGUARD BALANCED INDEX FUND VANGUARD VALLEY FORGE FUNDS | 19,276 | 575.4K $ | 0.00 % | as of Mar 31, 2026 · Original filing |
| 61 | LVIP SSGA Small-Cap Index Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 19,200 | 573.1K $ | 0.03 % | as of Mar 31, 2026 · Original filing |
| 62 | Health Sciences Trust John Hancock Variable Insurance Trust | 17,761 | 530.2K $ | 0.23 % | as of Mar 31, 2026 · Original filing |
| 63 | U.S. SMALL CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 16,901 | 510.7K $ | 0.00 % | as of Apr 30, 2026 · Original filing |
| 64 | U.S. MICRO CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 16,825 | 508.5K $ | 0.01 % | as of Apr 30, 2026 · Original filing |
| 65 | VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND VANGUARD INSTITUTIONAL INDEX FUNDS | 16,469 | 491.6K $ | 0.00 % | as of Mar 31, 2026 · Original filing |
| 66 | Schwab Total Stock Market Index Fund SCHWAB CAPITAL TRUST | 15,891 | 480.2K $ | 0.00 % | as of Apr 30, 2026 · Original filing |
| 67 | EQ/Small Company Index Portfolio EQ Advisors Trust | 15,500 | 462.7K $ | 0.03 % | as of Mar 31, 2026 · Original filing |
| 68 | Schwab U.S. Broad Market ETF SCHWAB STRATEGIC TRUST | 15,071 | 490.6K $ | 0.00 % | as of Feb 28, 2026 · Original filing |
| 69 | Optimize Strategy Index ETF Advisor Managed Portfolios | 14,508 | 433.1K $ | 0.21 % | as of Mar 31, 2026 · Original filing |
| 70 | Fidelity Nasdaq Composite Index ETF Fidelity Commonwealth Trust | 13,840 | 450.5K $ | 0.01 % | as of Feb 28, 2026 · Original filing |
| 71 | Small Cap Index Fund Northern Funds | 13,300 | 397K $ | 0.03 % | as of Mar 31, 2026 · Original filing |
| 72 | Fidelity ZERO Total Market Index Fund Fidelity Concord Street Trust | 12,974 | 392.1K $ | 0.00 % | as of Apr 30, 2026 · Original filing |
| 73 | MassMutual Small Cap Growth Equity Fund MASSMUTUAL SELECT FUNDS | 12,832 | 383K $ | 0.07 % | as of Mar 31, 2026 · Original filing |
| 74 | Bridge Builder Small/Mid Cap Value Fund Bridge Builder Trust | 12,689 | 378.8K $ | 0.00 % | as of Mar 31, 2026 · Original filing |
| 75 | EQ/T.Rowe Price Health Sciences Portfolio EQ Advisors Trust | 12,465 | 372.1K $ | 0.23 % | as of Mar 31, 2026 · Original filing |
| 76 | Global X Russell 2000 ETF GLOBAL X FUNDS | 12,353 | 373.3K $ | 0.03 % | as of Apr 30, 2026 · Original filing |
| 77 | JPMorgan Small Cap Value Portfolio Brighthouse Funds Trust I | 11,619 | 346.8K $ | 0.11 % | as of Mar 31, 2026 · Original filing |
| 78 | Small Cap Index Fund VALIC Co I | 11,217 | 365.1K $ | 0.03 % | as of Feb 28, 2026 · Original filing |
| 79 | Fidelity MSCI Health Care Index ETF FIDELITY COVINGTON TRUST | 10,305 | 311.4K $ | 0.01 % | as of Apr 30, 2026 · Original filing |
| 80 | EQ/AB Small Cap Growth Portfolio EQ Advisors Trust | 9,900 | 295.5K $ | 0.02 % | as of Mar 31, 2026 · Original filing |
| 81 | STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO STATE STREET INSTITUTIONAL INVESTMENT TRUST | 9,900 | 295.5K $ | 0.01 % | as of Mar 31, 2026 · Original filing |
| 82 | MetLife Russell 2000 Index Portfolio Brighthouse Funds Trust II | 9,444 | 281.9K $ | 0.03 % | as of Mar 31, 2026 · Original filing |
| 83 | Virtus Biotech Clinical Trials Etf ETFis Series Trust I | 9,242 | 279.3K $ | 0.75 % | as of Apr 30, 2026 · Original filing |
| 84 | Fidelity ZERO Extended Market Index Fund Fidelity Concord Street Trust | 8,908 | 269.2K $ | 0.01 % | as of Apr 30, 2026 · Original filing |
| 85 | Dimensional U.S. Core Equity 2 ETF Dimensional ETF Trust | 8,774 | 265.2K $ | 0.00 % | as of Apr 30, 2026 · Original filing |
| 86 | ATM Small Cap Managed Volatility Portfolio EQ Advisors Trust | 8,564 | 255.6K $ | 0.03 % | as of Mar 31, 2026 · Original filing |
| 87 | NYLIM VP Wellington Small Cap Portfolio NEW YORK LIFE INVESTMENTS VP FUNDS TRUST | 8,077 | 241.1K $ | 0.07 % | as of Mar 31, 2026 · Original filing |
| 88 | Goldman Sachs Small Cap Value Insights Fund Goldman Sachs Trust | 7,977 | 241.1K $ | 0.02 % | as of Apr 30, 2026 · Original filing |
| 89 | iShares Russell 3000 ETF iShares Trust | 7,646 | 228.2K $ | 0.00 % | as of Mar 31, 2026 · Original filing |
| 90 | Ultra-Small Company Market Fund Bridgeway Funds, Inc. | 7,500 | 223.9K $ | 0.18 % | as of Mar 31, 2026 · Original filing |
| 91 | Small-Cap Index Portfolio PACIFIC SELECT FUND | 7,349 | 219.4K $ | 0.03 % | as of Mar 31, 2026 · Original filing |
| 92 | T. Rowe Price Extended Equity Market Index Fund T. ROWE PRICE INDEX TRUST, INC. | 7,119 | 212.5K $ | 0.02 % | as of Mar 31, 2026 · Original filing |
| 93 | PROFUND VP PHARMACEUTICALS ProFunds | 6,369 | 190.1K $ | 1.87 % | as of Mar 31, 2026 · Original filing |
| 94 | Direxion Daily Pharmaceutical & Medical Bull 3X Shares Direxion Shares ETF Trust | 5,866 | 177.3K $ | 1.37 % | as of Apr 30, 2026 · Original filing |
| 95 | Multi-Manager U.S. Small Cap Equity Fund Goldman Sachs Trust II | 5,828 | 176.1K $ | 0.05 % | as of Apr 30, 2026 · Original filing |
| 96 | Invesco Russell 2000 Dynamic Multifactor ETF Invesco Exchange-Traded Self-Indexed Fund Trust | 5,730 | 186.5K $ | 0.07 % | as of Feb 28, 2026 · Original filing |
| 97 | College Retirement Equities Fund - Total Global Stock Account College Retirement Equities Fund | 5,670 | 169.2K $ | 0.00 % | as of Mar 31, 2026 · Original filing |
| 98 | NVIT Small Cap Index Fund Nationwide Variable Insurance Trust | 5,647 | 168.6K $ | 0.03 % | as of Mar 31, 2026 · Original filing |
| 99 | Dimensional U.S. Equity Market ETF Dimensional ETF Trust | 5,577 | 168.5K $ | 0.00 % | as of Apr 30, 2026 · Original filing |
| 100 | LVIP JPMorgan Small Cap Core Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 5,527 | 165K $ | 0.08 % | as of Mar 31, 2026 · Original filing |
Institutional managers
149 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 | |
|---|---|---|---|
| Frazier Life Sciences Management, L.P. | 6,652,013 | 198.6M $ | as of Mar 31, 2026 |
| ORBIMED ADVISORS LLC | 3,637,887 | 108.6M $ | as of Mar 31, 2026 |
| NEA Management Company, LLC | 3,614,486 | 107.9M $ | as of Mar 31, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | 3,191,824 | 95.3M $ | as of Mar 31, 2026 |
| BlackRock, Inc. | 2,941,406 | 87.8M $ | as of Mar 31, 2026 |
| FMR LLC | 2,936,684 | 87.7M $ | as of Mar 31, 2026 |
| Deep Track Capital, LP | 2,757,569 | 82.3M $ | as of Mar 31, 2026 |
| NVP ASSOCIATES, LLC | 2,136,335 | 63.8M $ | as of Mar 31, 2026 |
| Polar Capital Holdings Plc | 1,622,186 | 48.4M $ | as of Mar 31, 2026 |
| BRAIDWELL LP | 1,492,467 | 44.6M $ | as of Mar 31, 2026 |
| Aaron Wealth Advisors LLC | 1,168,176 | 34.9M $ | as of Mar 31, 2026 |
| Cormorant Asset Management, LP | 1,120,000 | 33.4M $ | as of Mar 31, 2026 |
| Driehaus Capital Management LLC | 1,018,212 | 30.4M $ | as of Mar 31, 2026 |
| Kynam Capital Management, LP | 934,799 | 27.9M $ | as of Mar 31, 2026 |
| CITADEL ADVISORS LLC | 932,833 | 27.8M $ | as of Mar 31, 2026 |
| Woodline Partners LP | 900,063 | 26.9M $ | as of Mar 31, 2026 |
| EVENTIDE ASSET MANAGEMENT, LLC | 890,000 | 26.6M $ | as of Mar 31, 2026 |
| Caligan Partners LP | 848,590 | 25.3M $ | as of Mar 31, 2026 |
| Parkman Healthcare Partners LLC | 800,037 | 23.9M $ | as of Mar 31, 2026 |
| STATE STREET CORP | 787,208 | 23.5M $ | as of Mar 31, 2026 |
| EcoR1 Capital, LLC | 777,000 | 23.2M $ | as of Mar 31, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | 670,385 | 20M $ | as of Mar 31, 2026 |
| TCG Crossover Management, LLC | 650,000 | 19.4M $ | as of Mar 31, 2026 |
| MILLENNIUM MANAGEMENT LLC | 564,415 | 16.8M $ | as of Mar 31, 2026 |
| STEMPOINT CAPITAL LP | 499,469 | 14.9M $ | as of Mar 31, 2026 |