Funds holding Repligen Corp
532 funds declare a position · 104 ETFs and 428 other funds · 3.6B $· 80.3M SEK· 22.5M € · US7599161095
Each line carries its report date.
| Rank | Fund | Shares | Value | Weight | |
|---|---|---|---|---|---|
| 1 | iShares Core S&P Mid-Cap ETF iShares Trust | 1,751,952 | 206.4M $ | 0.19 % | as of Mar 31, 2026 · Original filing |
| 2 | VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 1,707,493 | 201.2M $ | 0.01 % | as of Mar 31, 2026 · Original filing |
| 3 | VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS | 1,233,903 | 145.4M $ | 0.09 % | as of Mar 31, 2026 · Original filing |
| 4 | T. Rowe Price New Horizons Fund, Inc. T. ROWE PRICE NEW HORIZONS FUND, INC. | 1,202,491 | 141.7M $ | 1.11 % | as of Mar 31, 2026 · Original filing |
| 5 | MFS Mid Cap Growth Fund MFS Series Trust IV | 866,360 | 111.5M $ | 0.81 % | as of Feb 28, 2026 · Original filing |
| 6 | T. Rowe Price All-Cap Opportunities Fund T. Rowe Price All-Cap Opportunities Fund, Inc. | 748,455 | 88.2M $ | 0.61 % | as of Mar 31, 2026 · Original filing |
| 7 | BlackRock Mid-Cap Growth Equity Portfolio BlackRock Funds | 710,699 | 91.5M $ | 1.55 % | as of Feb 27, 2026 · Original filing |
| 8 | VANGUARD SMALL-CAP GROWTH INDEX FUND VANGUARD INDEX FUNDS | 689,691 | 81.3M $ | 0.21 % | as of Mar 31, 2026 · Original filing |
| 9 | VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 589,907 | 69.5M $ | 0.09 % | as of Mar 31, 2026 · Original filing |
| 10 | Select Medical Technology and Devices Portfolio Fidelity Select Portfolios | 540,000 | 69.5M $ | 1.90 % | as of Feb 28, 2026 · Original filing |
| 11 | T. Rowe Price Small-Cap Stock Fund, Inc. T. ROWE PRICE SMALL-CAP STOCK FUND, INC. | 526,112 | 62M $ | 0.77 % | as of Mar 31, 2026 · Original filing |
| 12 | Wasatch Core Growth Fund WASATCH FUNDS TRUST | 498,538 | 58.7M $ | 1.97 % | as of Mar 31, 2026 · Original filing |
| 13 | CONESTOGA SMALL CAP FUND Conestoga Funds | 489,135 | 57.6M $ | 2.56 % | as of Mar 31, 2026 · Original filing |
| 14 | First Trust NYSE Arca Biotechnology Index Fund First Trust Exchange-Traded Fund | 483,433 | 57M $ | 2.51 % | as of Mar 31, 2026 · Original filing |
| 15 | Select Health Care Portfolio Fidelity Select Portfolios | 428,000 | 55.1M $ | 0.89 % | as of Feb 28, 2026 · Original filing |
| 16 | iShares Biotechnology ETF iShares Trust | 396,896 | 46.8M $ | 0.58 % | as of Mar 31, 2026 · Original filing |
| 17 | Congress Small Cap Growth Fund Professionally Managed Portfolios | 395,000 | 46.7M $ | 2.42 % | as of Apr 30, 2026 · Original filing |
| 18 | Columbia Small Cap Growth Fund COLUMBIA FUNDS SERIES TRUST I | 389,223 | 50.1M $ | 1.57 % | as of Feb 28, 2026 · Original filing |
| 19 | Invesco Discovery Fund AIM Counselor Series Trust (Invesco Counselor Series Trust) | 371,656 | 47.8M $ | 0.72 % | as of Feb 28, 2026 · Original filing |
| 20 | Strategic Advisers Fidelity U.S. Total Stock Fund Fidelity Rutland Square Trust II | 347,900 | 44.8M $ | 0.02 % | as of Feb 28, 2026 · Original filing |
| 21 | VANGUARD EXPLORER FUND VANGUARD EXPLORER FUND | 338,189 | 40M $ | 0.18 % | as of Apr 30, 2026 · Original filing |
| 22 | Bridge Builder Small/Mid Cap Growth Fund Bridge Builder Trust | 328,468 | 38.7M $ | 0.42 % | as of Mar 31, 2026 · Original filing |
| 23 | Franklin Small-Mid Cap Growth Fund Franklin Strategic Series | 296,425 | 35.1M $ | 0.99 % | as of Apr 30, 2026 · Original filing |
| 24 | Fidelity Mid-Cap Stock Fund Fidelity Concord Street Trust | 292,602 | 34.6M $ | 0.40 % | as of Apr 30, 2026 · Original filing |
| 25 | T. Rowe Price Institutional Small-Cap Stock Fund T. Rowe Price Equity Funds, Inc. | 284,502 | 33.5M $ | 0.77 % | as of Mar 31, 2026 · Original filing |
| 26 | Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 283,832 | 36.5M $ | 0.09 % | as of Feb 28, 2026 · Original filing |
| 27 | BARON DISCOVERY FUND BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND) | 273,653 | 32.2M $ | 1.97 % | as of Mar 31, 2026 · Original filing |
| 28 | T. Rowe Price Global Stock Fund T. ROWE PRICE INTERNATIONAL FUNDS, INC. | 271,559 | 32.1M $ | 0.39 % | as of Apr 30, 2026 · Original filing |
| 29 | State Street(R) SPDR(R) Portfolio S&P 400(TM) Mid Cap ETF SPDR SERIES TRUST | 258,741 | 30.5M $ | 0.20 % | as of Mar 31, 2026 · Original filing |
| 30 | Franklin Small Cap Growth Fund Franklin Strategic Series | 234,118 | 27.7M $ | 1.13 % | as of Apr 30, 2026 · Original filing |
| 31 | THRIVENT SMALL CAP STOCK FUND Thrivent Mutual Funds | 225,113 | 26.6M $ | 0.91 % | as of Apr 30, 2026 · Original filing |
| 32 | U.S. SMALL CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 218,749 | 25.9M $ | 0.14 % | as of Apr 30, 2026 · Original filing |
| 33 | Fidelity Advisor Health Care Fund Fidelity Advisor Series VII | 215,000 | 25.4M $ | 0.88 % | as of Apr 30, 2026 · Original filing |
| 34 | BNY Mellon Small/Mid Cap Growth Fund BNY Mellon Investment Funds I | 212,427 | 25M $ | 3.28 % | as of Mar 31, 2026 · Original filing |
| 35 | ALGER SMALL CAP FOCUS FUND ALGER FUNDS | 212,354 | 25.1M $ | 3.18 % | as of Apr 30, 2026 · Original filing |
| 36 | iShares Russell Mid-Cap ETF iShares Trust | 202,620 | 23.9M $ | 0.05 % | as of Mar 31, 2026 · Original filing |
| 37 | AB Small Cap Growth Portfolio AB CAP FUND, INC. | 197,937 | 23.4M $ | 0.80 % | as of Apr 30, 2026 · Original filing |
| 38 | Fidelity Mid Cap Index Fund Fidelity Salem Street Trust | 195,124 | 23.1M $ | 0.05 % | as of Apr 30, 2026 · Original filing |
| 39 | Champlain MidCap Fund ADVISORS' INNER CIRCLE FUND II | 191,000 | 22.5M $ | 1.06 % | as of Mar 31, 2026 · Original filing |
| 40 | VIP Mid Cap Portfolio Variable Insurance Products Fund III | 188,800 | 22.2M $ | 0.28 % | as of Mar 31, 2026 · Original filing |
| 41 | AB DISCOVERY GROWTH FUND, INC. AB DISCOVERY GROWTH FUND, INC. | 179,983 | 21.3M $ | 0.79 % | as of Apr 30, 2026 · Original filing |
| 42 | iShares S&P Mid-Cap 400 Growth ETF iShares Trust | 176,729 | 20.8M $ | 0.21 % | as of Mar 31, 2026 · Original filing |
| 43 | Voya Small Cap Growth Fund Voya Equity Trust | 174,999 | 22.5M $ | 1.22 % | as of Feb 28, 2026 · Original filing |
| 44 | VANGUARD CAPITAL OPPORTUNITY FUND VANGUARD HORIZON FUNDS | 170,378 | 20.1M $ | 0.08 % | as of Mar 31, 2026 · Original filing |
| 45 | VANGUARD HEALTH CARE INDEX FUND VANGUARD WORLD FUND | 160,466 | 20.7M $ | 0.10 % | as of Feb 28, 2026 · Original filing |
| 46 | Dimensional U.S. Small Cap ETF Dimensional ETF Trust | 160,116 | 18.9M $ | 0.13 % | as of Apr 30, 2026 · Original filing |
| 47 | Columbia Acorn Fund COLUMBIA ACORN TRUST | 159,623 | 18.8M $ | 0.84 % | as of Mar 31, 2026 · Original filing |
| 48 | Nationwide Geneva Small Cap Growth Fund Nationwide Mutual Funds | 154,634 | 18.3M $ | 1.66 % | as of Apr 30, 2026 · Original filing |
| 49 | Invesco Main Street Small Cap Fund AIM Growth Series (Invesco Growth Series) | 145,022 | 17.1M $ | 0.77 % | as of Mar 31, 2026 · Original filing |
| 50 | BARON ASSET FUND BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND) | 144,000 | 17M $ | 0.51 % | as of Mar 31, 2026 · Original filing |
| 51 | Schwab U.S. Mid-Cap ETF SCHWAB STRATEGIC TRUST | 143,093 | 18.4M $ | 0.14 % | as of Feb 28, 2026 · Original filing |
| 52 | Invesco Main Street Mid Cap Fund AIM Growth Series (Invesco Growth Series) | 142,081 | 16.7M $ | 0.71 % | as of Mar 31, 2026 · Original filing |
| 53 | BlackRock Health Sciences Opportunities Portfolio BlackRock Funds | 136,584 | 17.6M $ | 0.27 % | as of Feb 27, 2026 · Original filing |
| 54 | Fidelity U.S. Equity Central Fund Fidelity Central Investment Portfolios LLC | 135,000 | 15.9M $ | 0.08 % | as of Mar 31, 2026 · Original filing |
| 55 | PGIM Jennison Mid-Cap Growth Fund Prudential Jennison Mid-Cap Growth Fund, Inc. | 133,079 | 17.1M $ | 0.92 % | as of Feb 27, 2026 · Original filing |
| 56 | MFS Core Equity Fund MFS SERIES TRUST I | 121,697 | 15.7M $ | 0.25 % | as of Feb 28, 2026 · Original filing |
| 57 | Brown Capital Management Small Company Fund Brown Capital Management Mutual Funds | 121,282 | 14.3M $ | 4.44 % | as of Mar 31, 2026 · Original filing |
| 58 | iShares S&P Mid-Cap 400 Value ETF iShares Trust | 120,927 | 14.2M $ | 0.18 % | as of Mar 31, 2026 · Original filing |
| 59 | CONESTOGA SMID CAP FUND Conestoga Funds | 115,820 | 13.6M $ | 2.74 % | as of Mar 31, 2026 · Original filing |
| 60 | T. Rowe Price Integrated U.S. Small-Cap Growth Equity Fund T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC. | 114,688 | 13.5M $ | 0.16 % | as of Mar 31, 2026 · Original filing |
| 61 | Baird Mid Cap Growth Fund Baird Funds Inc | 109,300 | 12.9M $ | 1.77 % | as of Mar 31, 2026 · Original filing |
| 62 | T. Rowe Price Health Sciences Fund, Inc. T. ROWE PRICE HEALTH SCIENCES FUND, INC. | 108,730 | 12.8M $ | 0.12 % | as of Mar 31, 2026 · Original filing |
| 63 | iShares Russell 1000 Value ETF iShares Trust | 105,073 | 12.4M $ | 0.02 % | as of Mar 31, 2026 · Original filing |
| 64 | Wasatch Small Cap Growth Fund WASATCH FUNDS TRUST | 103,630 | 12.2M $ | 1.01 % | as of Mar 31, 2026 · Original filing |
| 65 | Schwab U.S. Large-Cap Growth ETF SCHWAB STRATEGIC TRUST | 100,774 | 13M $ | 0.03 % | as of Feb 28, 2026 · Original filing |
| 66 | Fidelity Balanced Fund Fidelity Puritan Trust | 99,487 | 12.8M $ | 0.02 % | as of Feb 28, 2026 · Original filing |
| 67 | Fidelity Total Market Index Fund Fidelity Concord Street Trust | 99,238 | 12.8M $ | 0.01 % | as of Feb 28, 2026 · Original filing |
| 68 | Fidelity Advisor Stock Selector Mid Cap Fund Fidelity Advisor Series I | 96,000 | 12.4M $ | 0.53 % | as of Feb 28, 2026 · Original filing |
| 69 | Franklin Growth Opportunities Fund Franklin Strategic Series | 88,804 | 10.5M $ | 0.23 % | as of Apr 30, 2026 · Original filing |
| 70 | Dimensional U.S. Core Equity 2 ETF Dimensional ETF Trust | 87,679 | 10.4M $ | 0.02 % | as of Apr 30, 2026 · Original filing |
| 71 | Victory Pioneer Select Mid Cap Growth Fund Victory Portfolios IV | 84,759 | 10.9M $ | 0.65 % | as of Feb 28, 2026 · Original filing |
| 72 | Champlain Small Company Fund ADVISORS' INNER CIRCLE FUND II | 84,000 | 9.9M $ | 0.96 % | as of Mar 31, 2026 · Original filing |
| 73 | Lord Abbett Value Opportunities Fund LORD ABBETT SECURITIES TRUST | 80,601 | 9.5M $ | 0.84 % | as of Apr 30, 2026 · Original filing |
| 74 | VANGUARD S&P MID-CAP 400 INDEX FUND VANGUARD ADMIRAL FUNDS | 80,558 | 10.4M $ | 0.20 % | as of Feb 28, 2026 · Original filing |
| 75 | T. Rowe Price Small-Cap Value Fund, Inc. T. ROWE PRICE SMALL-CAP VALUE FUND, INC. | 78,636 | 9.3M $ | 0.10 % | as of Mar 31, 2026 · Original filing |
| 76 | Fidelity Series Total Market Index Fund Fidelity Concord Street Trust | 78,223 | 10.1M $ | 0.01 % | as of Feb 28, 2026 · Original filing |
| 77 | VIP Health Care Portfolio Variable Insurance Products Fund IV | 78,000 | 9.2M $ | 0.91 % | as of Mar 31, 2026 · Original filing |
| 78 | AMG TimesSquare Mid Cap Growth Fund AMG Funds | 77,830 | 9.2M $ | 0.61 % | as of Mar 31, 2026 · Original filing |
| 79 | State Street U.S. Core Equity Fund STATE STREET INSTITUTIONAL INVESTMENT TRUST | 77,821 | 9.2M $ | 0.24 % | as of Mar 31, 2026 · Original filing |
| 80 | Invesco V.I. Main Street Small Cap Fund AIM Variable Insurance Funds (Invesco Variable Insurance Funds) | 74,008 | 8.7M $ | 0.75 % | as of Mar 31, 2026 · Original filing |
| 81 | THRIVENT SMALL CAP STOCK PORTFOLIO Thrivent Series Fund, Inc. | 73,511 | 8.7M $ | 0.98 % | as of Mar 31, 2026 · Original filing |
| 82 | ALGER MID CAP FOCUS FUND ALGER FUNDS | 72,429 | 8.6M $ | 2.70 % | as of Apr 30, 2026 · Original filing |
| 83 | Invesco Small Cap Equity Fund AIM Funds Group (Invesco Funds Group) | 72,182 | 8.5M $ | 0.84 % | as of Mar 31, 2026 · Original filing |
| 84 | EQ/MFS Mid Cap Focused Growth Portfolio EQ Advisors Trust | 72,040 | 8.5M $ | 1.74 % | as of Mar 31, 2026 · Original filing |
| 85 | Goldman Sachs Small/Mid Cap Growth Fund Goldman Sachs Trust | 71,329 | 9.2M $ | 0.75 % | as of Feb 28, 2026 · Original filing |
| 86 | Voya Global Insights Portfolio Voya Partners Inc | 70,841 | 8.3M $ | 0.97 % | as of Mar 31, 2026 · Original filing |
| 87 | EQ/AB Small Cap Growth Portfolio EQ Advisors Trust | 70,270 | 8.3M $ | 0.44 % | as of Mar 31, 2026 · Original filing |
| 88 | Allspring SMID Cap Growth Fund ALLSPRING FUNDS TRUST | 70,208 | 8.3M $ | 1.02 % | as of Mar 31, 2026 · Original filing |
| 89 | Congress SMid Growth ETF Professionally Managed Portfolios | 69,834 | 8.3M $ | 1.91 % | as of Apr 30, 2026 · Original filing |
| 90 | iShares Russell Mid-Cap Value ETF iShares Trust | 67,077 | 7.9M $ | 0.06 % | as of Mar 31, 2026 · Original filing |
| 91 | iShares Core S&P Total U.S. Stock Market ETF iShares Trust | 66,395 | 7.8M $ | 0.01 % | as of Mar 31, 2026 · Original filing |
| 92 | Fidelity Advisor Small Cap Fund Fidelity Advisor Series I | 65,700 | 8.5M $ | 0.38 % | as of Feb 28, 2026 · Original filing |
| 93 | Osterweis Opportunity Fund Professionally Managed Portfolios | 64,760 | 7.6M $ | 2.66 % | as of Mar 31, 2026 · Original filing |
| 94 | BNY Mellon Research Growth Fund, Inc. BNY MELLON RESEARCH GROWTH FUND, INC. | 64,633 | 8.3M $ | 0.52 % | as of Feb 28, 2026 · Original filing |
| 95 | ALGER CAPITAL APPRECIATION INSTITUTIONAL FUND ALGER INSTITUTIONAL FUNDS | 60,628 | 7.2M $ | 0.22 % | as of Apr 30, 2026 · Original filing |
| 96 | Artisan Small Cap Fund Artisan Partners Funds Inc. | 60,546 | 7.1M $ | 0.80 % | as of Mar 31, 2026 · Original filing |
| 97 | U.S. CORE EQUITY 2 PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 58,117 | 6.9M $ | 0.02 % | as of Apr 30, 2026 · Original filing |
| 98 | American Beacon Stephens Mid-Cap Growth Fund AMERICAN BEACON FUNDS | 57,663 | 6.8M $ | 1.13 % | as of Mar 31, 2026 · Original filing |
| 99 | AST Small-Cap Equity Portfolio Advanced Series Trust | 57,593 | 6.8M $ | 0.36 % | as of Mar 31, 2026 · Original filing |
| 100 | JNL Multi-Manager Small Cap Growth Fund JNL Series Trust | 56,630 | 6.7M $ | 0.33 % | as of Mar 31, 2026 · Original filing |
Institutional managers
431 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 | |
|---|---|---|---|
| BlackRock, Inc. | 5,993,054 | 706.1M $ | as of Mar 31, 2026 |
| FMR LLC | 2,886,786 | 340.1M $ | as of Mar 31, 2026 |
| UNITED CAPITAL FINANCIAL ADVISORS, LLC | 2,773,980 | 326.8M $ | as of Mar 31, 2026 |
| STATE STREET CORP | 1,777,285 | 209.4M $ | as of Mar 31, 2026 |
| Bank of New York Mellon Corp | 1,531,402 | 180.4M $ | as of Mar 31, 2026 |
| MAVERICK CAPITAL LTD | 1,518,805 | 178.9M $ | as of Mar 31, 2026 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1,397,515 | 164.7M $ | as of Mar 31, 2026 |
| Invesco Ltd. | 1,278,255 | 150.6M $ | as of Mar 31, 2026 |
| WASATCH ADVISORS LP | 1,243,531 | 146.5M $ | as of Mar 31, 2026 |
| RTW INVESTMENTS, LP | 1,206,000 | 142.1M $ | as of Mar 31, 2026 |
| FRANKLIN RESOURCES INC | 1,193,139 | 140.6M $ | as of Mar 31, 2026 |
| ALLIANCEBERNSTEIN L.P. | 831,792 | 136.3M $ | as of Mar 31, 2026 |
| CITADEL ADVISORS LLC | 1,099,181 | 129.5M $ | as of Mar 31, 2026 |
| Conestoga Capital Advisors, LLC | 1,097,783 | 129.3M $ | as of Mar 31, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | 1,064,457 | 125.4M $ | as of Mar 31, 2026 |
| AMERIPRISE FINANCIAL INC | 925,214 | 109M $ | as of Mar 31, 2026 |
| Vestal Point Capital, LP | 925,000 | 109M $ | as of Mar 31, 2026 |
| DIMENSIONAL FUND ADVISORS LP | 854,741 | 100.7M $ | as of Mar 31, 2026 |
| CONGRESS ASSET MANAGEMENT CO | 797,867 | 94M $ | as of Mar 31, 2026 |
| Stephens Investment Management Group LLC | 755,571 | 89M $ | as of Mar 31, 2026 |
| Holocene Advisors, LP | 708,889 | 83.5M $ | as of Mar 31, 2026 |
| Champlain Investment Partners, LLC | 693,855 | 81.7M $ | as of Mar 31, 2026 |
| GENEVA CAPITAL MANAGEMENT LLC | 693,738 | 81.7M $ | as of Mar 31, 2026 |
| MORGAN STANLEY | 683,789 | 80.6M $ | as of Mar 31, 2026 |
| UBS Group AG | 670,329 | 79M $ | as of Mar 31, 2026 |