Funds holding Arrowhead Pharmaceuticals Inc
416 funds declare a position · 94 ETFs and 322 other funds · 3.3B $· 120.1M SEK· 949.6K € · US04280A1007
Each line carries its report date.
| Rank | Fund | Shares | Value | Weight | |
|---|---|---|---|---|---|
| 1 | iShares Core S&P Mid-Cap ETF iShares Trust | 4,636,339 | 290.7M $ | 0.27 % | as of Mar 31, 2026 · Original filing |
| 2 | VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 4,226,608 | 265M $ | 0.01 % | as of Mar 31, 2026 · Original filing |
| 3 | iShares Russell 2000 ETF iShares Trust | 3,304,840 | 207.2M $ | 0.29 % | as of Mar 31, 2026 · Original filing |
| 4 | VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS | 3,067,312 | 192.3M $ | 0.12 % | as of Mar 31, 2026 · Original filing |
| 5 | Fidelity Growth Company Fund Fidelity Mt. Vernon Street Trust | 2,010,471 | 127.2M $ | 0.15 % | as of Feb 28, 2026 · Original filing |
| 6 | VANGUARD SMALL-CAP GROWTH INDEX FUND VANGUARD INDEX FUNDS | 1,714,987 | 107.5M $ | 0.28 % | as of Mar 31, 2026 · Original filing |
| 7 | VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 1,562,971 | 98M $ | 0.12 % | as of Mar 31, 2026 · Original filing |
| 8 | Invesco S&P MidCap Momentum ETF Invesco Exchange-Traded Fund Trust | 1,522,173 | 111.8M $ | 1.64 % | as of Apr 30, 2026 · Original filing |
| 9 | State Street(R) SPDR(R) S&P(R) Biotech ETF SPDR SERIES TRUST | 1,458,207 | 91.4M $ | 1.23 % | as of Mar 31, 2026 · Original filing |
| 10 | Fidelity Small Cap Index Fund Fidelity Salem Street Trust | 1,337,855 | 98.3M $ | 0.30 % | as of Apr 30, 2026 · Original filing |
| 11 | iShares Russell 2000 Growth ETF iShares Trust | 1,103,260 | 69.2M $ | 0.57 % | as of Mar 31, 2026 · Original filing |
| 12 | iShares Biotechnology ETF iShares Trust | 975,175 | 61.1M $ | 0.75 % | as of Mar 31, 2026 · Original filing |
| 13 | iShares S&P Mid-Cap 400 Growth ETF iShares Trust | 852,139 | 53.4M $ | 0.54 % | as of Mar 31, 2026 · Original filing |
| 14 | ALGER FOCUS EQUITY FUND ALGER INSTITUTIONAL FUNDS | 829,155 | 60.9M $ | 1.00 % | as of Apr 30, 2026 · Original filing |
| 15 | Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 723,650 | 45.8M $ | 0.11 % | as of Feb 28, 2026 · Original filing |
| 16 | State Street(R) SPDR(R) Portfolio S&P 400(TM) Mid Cap ETF SPDR SERIES TRUST | 683,966 | 42.9M $ | 0.27 % | as of Mar 31, 2026 · Original filing |
| 17 | Schwab U.S. Small-Cap ETF SCHWAB STRATEGIC TRUST | 671,073 | 42.5M $ | 0.20 % | as of Feb 28, 2026 · Original filing |
| 18 | VANGUARD RUSSELL 2000 INDEX FUND VANGUARD SCOTTSDALE FUNDS | 657,446 | 41.6M $ | 0.27 % | as of Feb 28, 2026 · Original filing |
| 19 | Fidelity Growth Company K6 Fund Fidelity Mt. Vernon Street Trust | 586,513 | 37.1M $ | 0.16 % | as of Feb 28, 2026 · Original filing |
| 20 | Hood River Small-Cap Growth Fund Manager Directed Portfolios | 578,500 | 36.3M $ | 0.70 % | as of Mar 31, 2026 · Original filing |
| 21 | Fidelity Series Growth Company Fund Fidelity Mt. Vernon Street Trust | 542,918 | 34.4M $ | 0.16 % | as of Feb 28, 2026 · Original filing |
| 22 | ALGER SPECTRA FUND ALGER FUNDS II | 484,475 | 35.6M $ | 0.83 % | as of Apr 30, 2026 · Original filing |
| 23 | Small Cap Growth Fund American Century Mutual Funds, Inc. | 465,340 | 34.2M $ | 0.68 % | as of Apr 30, 2026 · Original filing |
| 24 | Select Biotechnology Portfolio Fidelity Select Portfolios | 409,378 | 25.9M $ | 0.48 % | as of Feb 28, 2026 · Original filing |
| 25 | T. Rowe Price Integrated U.S. Small-Cap Growth Equity Fund T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC. | 396,461 | 24.9M $ | 0.30 % | as of Mar 31, 2026 · Original filing |
| 26 | ALGER SMALL CAP FOCUS FUND ALGER FUNDS | 374,741 | 27.5M $ | 3.49 % | as of Apr 30, 2026 · Original filing |
| 27 | VANGUARD HEALTH CARE INDEX FUND VANGUARD WORLD FUND | 373,558 | 23.6M $ | 0.12 % | as of Feb 28, 2026 · Original filing |
| 28 | Eventide Healthcare & Life Sciences Fund MUTUAL FUND SERIES TRUST | 370,000 | 23.2M $ | 1.46 % | as of Mar 31, 2026 · Original filing |
| 29 | ALGER CAPITAL APPRECIATION INSTITUTIONAL FUND ALGER INSTITUTIONAL FUNDS | 324,490 | 23.8M $ | 0.72 % | as of Apr 30, 2026 · Original filing |
| 30 | T. Rowe Price Health Sciences Fund, Inc. T. ROWE PRICE HEALTH SCIENCES FUND, INC. | 301,270 | 18.9M $ | 0.17 % | as of Mar 31, 2026 · Original filing |
| 31 | Schwab Small-Cap Index Fund SCHWAB CAPITAL TRUST | 296,689 | 21.8M $ | 0.30 % | as of Apr 30, 2026 · Original filing |
| 32 | VANGUARD EXPLORER FUND VANGUARD EXPLORER FUND | 280,858 | 20.6M $ | 0.09 % | as of Apr 30, 2026 · Original filing |
| 33 | Bridge Builder Small/Mid Cap Growth Fund Bridge Builder Trust | 272,509 | 17.1M $ | 0.19 % | as of Mar 31, 2026 · Original filing |
| 34 | ALGER CAPITAL APPRECIATION FUND ALGER FUNDS | 267,529 | 19.7M $ | 0.74 % | as of Apr 30, 2026 · Original filing |
| 35 | Voya Small Cap Growth Fund Voya Equity Trust | 267,315 | 16.9M $ | 0.91 % | as of Feb 28, 2026 · Original filing |
| 36 | Invesco Main Street Small Cap Fund AIM Growth Series (Invesco Growth Series) | 266,911 | 16.7M $ | 0.76 % | as of Mar 31, 2026 · Original filing |
| 37 | Fidelity Total Market Index Fund Fidelity Concord Street Trust | 257,673 | 16.3M $ | 0.01 % | as of Feb 28, 2026 · Original filing |
| 38 | VANGUARD STRATEGIC EQUITY FUND VANGUARD HORIZON FUNDS | 228,463 | 14.3M $ | 0.14 % | as of Mar 31, 2026 · Original filing |
| 39 | Fidelity SAI Small-Mid Cap Momentum Index Fund Fidelity Salem Street Trust | 225,620 | 16.6M $ | 0.39 % | as of Apr 30, 2026 · Original filing |
| 40 | LORD ABBETT DEVELOPING GROWTH FUND INC LORD ABBETT DEVELOPING GROWTH FUND, INC. | 223,850 | 16.4M $ | 0.74 % | as of Apr 30, 2026 · Original filing |
| 41 | Master Small Cap Index Series Quantitative Master Series LLC | 218,819 | 13.7M $ | 0.28 % | as of Mar 31, 2026 · Original filing |
| 42 | State Street(R) SPDR(R) S & P 400(TM) Mid Cap Growth ETF SPDR SERIES TRUST | 213,178 | 13.4M $ | 0.54 % | as of Mar 31, 2026 · Original filing |
| 43 | VANGUARD S&P MID-CAP 400 INDEX FUND VANGUARD ADMIRAL FUNDS | 210,444 | 13.3M $ | 0.25 % | as of Feb 28, 2026 · Original filing |
| 44 | Fidelity Series Total Market Index Fund Fidelity Concord Street Trust | 204,623 | 12.9M $ | 0.01 % | as of Feb 28, 2026 · Original filing |
| 45 | U.S. SMALL CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 197,652 | 14.5M $ | 0.08 % | as of Apr 30, 2026 · Original filing |
| 46 | Putnam Small Cap Growth Fund Putnam Funds Trust | 197,019 | 12.4M $ | 0.46 % | as of Mar 31, 2026 · Original filing |
| 47 | ClearBridge Small Cap Fund Legg Mason Global Asset Management Trust | 192,210 | 14.1M $ | 1.93 % | as of Apr 30, 2026 · Original filing |
| 48 | BlackRock Advantage Small Cap Core Fund BlackRock Funds | 185,115 | 11.7M $ | 0.26 % | as of Feb 27, 2026 · Original filing |
| 49 | iShares Core S&P Total U.S. Stock Market ETF iShares Trust | 175,812 | 11M $ | 0.01 % | as of Mar 31, 2026 · Original filing |
| 50 | Driehaus Small Cap Growth Fund Driehaus Mutual Funds | 162,189 | 10.2M $ | 0.89 % | as of Mar 31, 2026 · Original filing |
| 51 | Nuveen Small Cap Blend Index Fund TIAA-CREF Funds | 161,722 | 11.9M $ | 0.30 % | as of Apr 30, 2026 · Original filing |
| 52 | SEB Läkemedelsfond SEB Funds AB | 158,205 | 94.5M SEK | 0.58 % | as of Mar 31, 2026 · Original filing |
| 53 | Dimensional U.S. Core Equity 2 ETF Dimensional ETF Trust | 153,772 | 11.3M $ | 0.03 % | as of Apr 30, 2026 · Original filing |
| 54 | Fidelity Enhanced Small Cap ETF Fidelity Covington Trust | 153,358 | 9.6M $ | 0.23 % | as of Mar 31, 2026 · Original filing |
| 55 | VANGUARD STRATEGIC SMALL-CAP EQUITY FUND VANGUARD HORIZON FUNDS | 148,719 | 9.3M $ | 0.38 % | as of Mar 31, 2026 · Original filing |
| 56 | EQ/2000 Managed Volatility Portfolio EQ Advisors Trust | 141,394 | 8.9M $ | 0.26 % | as of Mar 31, 2026 · Original filing |
| 57 | JNL Mid Cap Index Fund JNL Series Trust | 141,296 | 8.9M $ | 0.27 % | as of Mar 31, 2026 · Original filing |
| 58 | Invesco V.I. Main Street Small Cap Fund AIM Variable Insurance Funds (Invesco Variable Insurance Funds) | 139,540 | 8.7M $ | 0.75 % | as of Mar 31, 2026 · Original filing |
| 59 | Fidelity Small Cap Growth Fund Fidelity Securities Fund | 132,570 | 9.7M $ | 0.12 % | as of Apr 30, 2026 · Original filing |
| 60 | JNL/Invesco Small Cap Growth Fund JNL Series Trust | 132,281 | 8.3M $ | 0.53 % | as of Mar 31, 2026 · Original filing |
| 61 | Invesco Small Cap Growth Fund AIM Growth Series (Invesco Growth Series) | 127,383 | 8M $ | 0.52 % | as of Mar 31, 2026 · Original filing |
| 62 | VANGUARD S&P MID-CAP 400 GROWTH INDEX FUND VANGUARD ADMIRAL FUNDS | 126,116 | 8M $ | 0.49 % | as of Feb 28, 2026 · Original filing |
| 63 | VANGUARD RUSSELL 2000 GROWTH INDEX FUND VANGUARD SCOTTSDALE FUNDS | 121,565 | 7.7M $ | 0.53 % | as of Feb 28, 2026 · Original filing |
| 64 | iShares Core S&P U.S. Growth ETF iShares Trust | 117,820 | 7.4M $ | 0.03 % | as of Mar 31, 2026 · Original filing |
| 65 | Principal U.S. Small-Cap ETF Principal Exchange-Traded Funds | 117,301 | 7.4M $ | 0.42 % | as of Mar 31, 2026 · Original filing |
| 66 | JNL Multi-Manager Small Cap Growth Fund JNL Series Trust | 115,369 | 7.2M $ | 0.36 % | as of Mar 31, 2026 · Original filing |
| 67 | EQ/Mid Cap Index Portfolio EQ Advisors Trust | 114,782 | 7.2M $ | 0.27 % | as of Mar 31, 2026 · Original filing |
| 68 | Invesco Biotechnology & Genome ETF Invesco Exchange-Traded Fund Trust | 110,374 | 8.1M $ | 3.28 % | as of Apr 30, 2026 · Original filing |
| 69 | Nuveen Equity Index Fund TIAA-CREF Funds | 110,339 | 8.1M $ | 0.01 % | as of Apr 30, 2026 · Original filing |
| 70 | Mid Cap Index Fund VALIC Co I | 106,625 | 6.7M $ | 0.26 % | as of Feb 28, 2026 · Original filing |
| 71 | Invesco S&P Midcap 400 Pure Growth ETF Invesco Exchange-Traded Fund Trust | 105,823 | 7.8M $ | 2.32 % | as of Apr 30, 2026 · Original filing |
| 72 | VANGUARD TOTAL WORLD STOCK INDEX FUND VANGUARD INTERNATIONAL EQUITY INDEX FUNDS | 105,055 | 7.7M $ | 0.01 % | as of Apr 30, 2026 · Original filing |
| 73 | Fidelity Small Cap Growth Index Fund Fidelity Salem Street Trust | 102,856 | 6.4M $ | 0.57 % | as of Mar 31, 2026 · Original filing |
| 74 | Columbia Mid Cap Index Fund COLUMBIA FUNDS SERIES TRUST | 101,950 | 6.5M $ | 0.25 % | as of Feb 28, 2026 · Original filing |
| 75 | Invesco RAFI US 1500 Small-Mid ETF Invesco Exchange-Traded Fund Trust | 101,861 | 7.5M $ | 0.26 % | as of Apr 30, 2026 · Original filing |
| 76 | U.S. Small Cap Growth Portfolio DFA INVESTMENT DIMENSIONS GROUP INC | 98,294 | 7.2M $ | 0.38 % | as of Apr 30, 2026 · Original filing |
| 77 | Janus Henderson Small/Mid Cap Growth Alpha ETF Janus Detroit Street Trust | 95,209 | 7M $ | 0.71 % | as of Apr 30, 2026 · Original filing |
| 78 | College Retirement Equities Fund - Total Global Stock Account College Retirement Equities Fund | 92,934 | 5.8M $ | 0.00 % | as of Mar 31, 2026 · Original filing |
| 79 | Dimensional U.S. Small Cap ETF Dimensional ETF Trust | 91,508 | 6.7M $ | 0.05 % | as of Apr 30, 2026 · Original filing |
| 80 | JPMorgan Small & Mid Cap Enhanced Equity ETF J.P. Morgan Exchange-Traded Fund Trust | 89,393 | 5.6M $ | 0.24 % | as of Mar 31, 2026 · Original filing |
| 81 | Neuberger Small Cap Growth Fund NEUBERGER BERMAN EQUITY FUNDS | 89,310 | 5.7M $ | 1.16 % | as of Feb 28, 2026 · Original filing |
| 82 | LVIP SSGA Small-Cap Index Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 89,232 | 5.6M $ | 0.29 % | as of Mar 31, 2026 · Original filing |
| 83 | MOA SMALL CAP GROWTH FUND MoA Funds Corp | 88,773 | 5.6M $ | 1.34 % | as of Mar 31, 2026 · Original filing |
| 84 | Mid Cap Index Fund Northern Funds | 88,005 | 5.5M $ | 0.27 % | as of Mar 31, 2026 · Original filing |
| 85 | Fidelity SAI U.S. Momentum Index Fund Fidelity Salem Street Trust | 87,942 | 6.5M $ | 0.08 % | as of Apr 30, 2026 · Original filing |
| 86 | Direxion Daily S&P Biotech Bull 3X Shares Direxion Shares ETF Trust | 83,558 | 6.1M $ | 1.18 % | as of Apr 30, 2026 · Original filing |
| 87 | Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust | 82,824 | 5.2M $ | 0.02 % | as of Feb 28, 2026 · Original filing |
| 88 | Schwab Total Stock Market Index Fund SCHWAB CAPITAL TRUST | 82,774 | 6.1M $ | 0.01 % | as of Apr 30, 2026 · Original filing |
| 89 | Schwab U.S. Broad Market ETF SCHWAB STRATEGIC TRUST | 80,745 | 5.1M $ | 0.01 % | as of Feb 28, 2026 · Original filing |
| 90 | ALGER MID CAP FOCUS FUND ALGER FUNDS | 78,761 | 5.8M $ | 1.82 % | as of Apr 30, 2026 · Original filing |
| 91 | Old Westbury Small & Mid Cap Strategies Fund Old Westbury Funds Inc | 77,679 | 5.7M $ | 0.06 % | as of Apr 30, 2026 · Original filing |
| 92 | Fidelity Momentum Factor ETF Fidelity Covington Trust | 76,377 | 5.6M $ | 0.67 % | as of Apr 30, 2026 · Original filing |
| 93 | VANGUARD BALANCED INDEX FUND VANGUARD VALLEY FORGE FUNDS | 74,886 | 4.7M $ | 0.01 % | as of Mar 31, 2026 · Original filing |
| 94 | EQ/Small Company Index Portfolio EQ Advisors Trust | 73,090 | 4.6M $ | 0.29 % | as of Mar 31, 2026 · Original filing |
| 95 | Fidelity ZERO Total Market Index Fund Fidelity Concord Street Trust | 72,760 | 5.3M $ | 0.01 % | as of Apr 30, 2026 · Original filing |
| 96 | SMALL COMPANY GROWTH PORTFOLIO VANGUARD VARIABLE INSURANCE FUNDS | 72,030 | 4.5M $ | 0.33 % | as of Mar 31, 2026 · Original filing |
| 97 | Alger Capital Appreciation Portfolio ALGER PORTFOLIOS | 71,809 | 4.5M $ | 0.68 % | as of Mar 31, 2026 · Original filing |
| 98 | Fidelity Small-Mid Multifactor ETF Fidelity Covington Trust | 70,532 | 5.2M $ | 0.22 % | as of Apr 30, 2026 · Original filing |
| 99 | Fidelity Small Cap Growth K6 Fund Fidelity Securities Fund | 66,000 | 4.8M $ | 0.11 % | as of Apr 30, 2026 · Original filing |
| 100 | LVIP Franklin Templeton Multi-Factor SMID Cap Equity Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 65,515 | 4.1M $ | 0.45 % | as of Mar 31, 2026 · Original filing |
Institutional managers
423 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. | 18,161,519 | 1.1B $ | as of Mar 31, 2026 |
| Avoro Capital Advisors LLC | 10,699,999 | 670.9M $ | as of Mar 31, 2026 |
| FMR LLC | 7,266,652 | 455.6M $ | as of Mar 31, 2026 |
| STATE STREET CORP | 6,496,130 | 407.3M $ | as of Mar 31, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | 4,278,828 | 274.5M $ | as of Mar 31, 2026 |
| FRED ALGER MANAGEMENT, LLC | 3,342,493 | 209.6M $ | as of Mar 31, 2026 |
| Invesco Ltd. | 3,280,647 | 205.7M $ | as of Mar 31, 2026 |
| Vestal Point Capital, LP | 2,275,000 | 142.6M $ | as of Mar 31, 2026 |
| BAKER BROS. ADVISORS LP | 1,992,783 | 124.9M $ | as of Mar 31, 2026 |
| GOLDMAN SACHS GROUP INC | 1,739,923 | 109.1M $ | as of Mar 31, 2026 |
| NORTHERN TRUST CORP | 1,655,837 | 103.8M $ | as of Mar 31, 2026 |
| Siren, L.L.C. | 1,615,476 | 101.3M $ | as of Mar 31, 2026 |
| DEERFIELD MANAGEMENT COMPANY, L.P. | 1,573,297 | 98.6M $ | as of Mar 31, 2026 |
| JANUS HENDERSON GROUP PLC | 1,436,990 | 90.1M $ | as of Mar 31, 2026 |
| UBS Group AG | 1,336,271 | 83.8M $ | as of Mar 31, 2026 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 1,330,996 | 83.5M $ | as of Mar 31, 2026 |
| Pictet Asset Management Holding SA | 1,273,266 | 79.6M $ | as of Mar 31, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1,192,085 | 74.7M $ | as of Mar 31, 2026 |
| Driehaus Capital Management LLC | 1,190,335 | 74.6M $ | as of Mar 31, 2026 |
| D. E. Shaw & Co., Inc. | 1,183,838 | 74.2M $ | as of Mar 31, 2026 |
| Fisher Asset Management, LLC | 1,113,568 | 69.8M $ | as of Mar 31, 2026 |
| BANK OF AMERICA CORP /DE/ | 1,064,455 | 66.7M $ | as of Mar 31, 2026 |
| Hood River Capital Management LLC | 1,056,534 | 66.2M $ | as of Mar 31, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | 1,036,495 | 65M $ | as of Mar 31, 2026 |
| MORGAN STANLEY | 960,507 | 60.2M $ | as of Mar 31, 2026 |