CUSIP 014442107
ALECTOR INC
179 institutions · $147.3M total · 89,237,761 shares · ALEC
| # | Manager | Shares | Value | % of Total | Period |
|---|---|---|---|---|---|
| 1 | RTW INVESTMENTS, LP | 6,990,806 | $20.7M | 7.83% | 2025-09-30 |
| 2 | TCG Crossover Management, LLC | 10,000,000 | $15.6M | 11.20% | 2025-12-31 |
| 3 | VANGUARD GROUP INC | 6,302,652 | $9.8M | 7.06% | 2025-12-31 |
| 4 | Foresite Capital Management IV, LLC | 3,887,200 | $6.1M | 4.35% | 2025-12-31 |
| 5 | Merck & Co., Inc. | 3,545,719 | $5.5M | 3.97% | 2025-12-31 |
| 6 | 683 Capital Management, LLC | 3,350,000 | $5.2M | 3.75% | 2025-12-31 |
| 7 | Balyasny Asset Management L.P. | 3,265,575 | $5.1M | 3.65% | 2025-12-31 |
| 8 | BlackRock, Inc. | 2,947,940 | $4.6M | 3.30% | 2025-12-31 |
| 9 | FMR LLC | 2,231,075 | $3.5M | 2.50% | 2025-12-31 |
| 10 | JACOBS LEVY EQUITY MANAGEMENT, INC | 2,173,202 | $3.4M | 2.43% | 2025-12-31 |
| 11 | Ikarian Capital, LLC | 2,082,606 | $3.2M | 2.33% | 2025-12-31 |
| 12 | Kynam Capital Management, LP | 2,000,000 | $3.1M | 2.24% | 2025-12-31 |
| 13 | 5AM Venture Management, LLC | 995,841 | $2.9M | 1.11% | 2025-09-30 |
| 14 | D. E. Shaw & Co., Inc. | 1,874,019 | $2.9M | 2.10% | 2025-12-31 |
| 15 | STATE STREET CORP | 1,814,298 | $2.8M | 2.03% | 2025-12-31 |
| 16 | GEODE CAPITAL MANAGEMENT, LLC | 1,802,764 | $2.8M | 2.02% | 2025-12-31 |
| 17 | RENAISSANCE TECHNOLOGIES LLC | 1,543,650 | $2.4M | 1.72% | 2025-12-31 |
| 18 | MEDICI CAPITAL LLC | 1,500,520 | $2.3M | 1.68% | 2025-12-31 |
| 19 | MILLENNIUM MANAGEMENT LLC | 1,332,914 | $2.1M | 1.49% | 2025-12-31 |
| 20 | Euclidean Capital LLC | 1,307,858 | $2.0M | 1.46% | 2025-12-31 |
| 21 | Spruce Street Capital LP | 1,117,986 | $1.7M | 1.25% | 2025-12-31 |
| 22 | ADAR1 Capital Management, LLC | 1,108,000 | $1.7M | 1.24% | 2025-12-31 |
| 23 | DEERFIELD MANAGEMENT COMPANY, L.P. | 1,055,192 | $1.6M | 1.18% | 2025-12-31 |
| 24 | TWO SIGMA INVESTMENTS, LP | 1,039,656 | $1.6M | 1.16% | 2025-12-31 |
| 25 | DEUTSCHE BANK AG\ | 1,035,147 | $1.6M | 1.15% | 2025-12-31 |
| 26 | MARSHALL WACE, LLP | 1,024,971 | $1.6M | 1.14% | 2025-12-31 |
| 27 | Eversept Partners, LP | 1,006,163 | $1.6M | 1.12% | 2025-12-31 |
| 28 | Logos Global Management LP | 500,000 | $1.5M | 0.56% | 2025-09-30 |
| 29 | DAFNA Capital Management LLC | 908,351 | $1.4M | 1.01% | 2025-12-31 |
| 30 | Elmind Capital, LP | 900,000 | $1.4M | 1.00% | 2025-12-31 |
| 31 | JANE STREET GROUP, LLC | 865,773 | $1.4M | 0.97% | 2025-12-31 |
| 32 | PANAGORA ASSET MANAGEMENT INC | 850,298 | $1.3M | 0.95% | 2025-12-31 |
| 33 | Sio Capital Management, LLC | 845,531 | $1.2M | 0.94% | 2025-06-30 |
| 34 | Vestal Point Capital, LP | 755,000 | $1.2M | 0.84% | 2025-12-31 |
| 35 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 665,491 | $1.0M | 0.74% | 2025-12-31 |
| 36 | TWO SIGMA ADVISERS, LP | 651,800 | $1.0M | 0.73% | 2025-12-31 |
| 37 | New Leaf Venture Partners, L.L.C. | 339,569 | $1.0M | 0.38% | 2025-09-30 |
| 38 | MACKENZIE FINANCIAL CORP | 660,168 | $1.0M | 0.73% | 2025-12-31 |
| 39 | XTX Topco Ltd | 592,839 | $924.8K | 0.66% | 2025-12-31 |
| 40 | AQR CAPITAL MANAGEMENT LLC | 591,618 | $922.9K | 0.66% | 2025-12-31 |
| 41 | NORTHERN TRUST CORP | 574,540 | $896.3K | 0.64% | 2025-12-31 |
| 42 | BOOTHBAY FUND MANAGEMENT, LLC | 559,726 | $873.2K | 0.62% | 2025-12-31 |
| 43 | TD Asset Management Inc | 273,738 | $810.3K | 0.30% | 2025-09-30 |
| 44 | AMERIPRISE FINANCIAL INC | 354,299 | $552.7K | 0.39% | 2025-12-31 |
| 45 | Alphabet Inc. | 175,866 | $520.6K | 0.19% | 2025-09-30 |
| 46 | BANK OF AMERICA CORP /DE/ | 162,464 | $480.9K | 0.18% | 2025-12-31 |
| 47 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 291,180 | $454.2K | 0.32% | 2025-12-31 |
| 48 | DIADEMA PARTNERS LP | 136,023 | $402.6K | 0.15% | 2025-09-30 |
| 49 | BARCLAYS PLC | 244,835 | $381.9K | 0.27% | 2025-12-31 |
| 50 | MORGAN STANLEY | 243,554 | $379.9K | 0.27% | 2025-12-31 |
| 51 | Walleye Capital LLC | 266,204 | $372.7K | 0.29% | 2025-06-30 |
| 52 | GOLDMAN SACHS GROUP INC | 234,567 | $365.9K | 0.26% | 2025-12-31 |
| 53 | State of Wyoming | 223,092 | $312.3K | 0.24% | 2025-06-30 |
| 54 | NANO CAP NEW MILLENNIUM GROWTH FUND L P | 200,000 | $312.0K | 0.22% | 2025-12-31 |
| 55 | Invesco Ltd. | 192,445 | $300.2K | 0.21% | 2025-12-31 |
| 56 | Cubist Systematic Strategies, LLC | 100,067 | $296.2K | 0.11% | 2025-09-30 |
| 57 | CANADA PENSION PLAN INVESTMENT BOARD | 172,300 | $268.8K | 0.19% | 2025-12-31 |
| 58 | DIMENSIONAL FUND ADVISORS LP | 162,518 | $253.5K | 0.18% | 2025-12-31 |
| 59 | PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | 136,000 | $212.2K | 0.15% | 2025-12-31 |
| 60 | Artia Global Partners LP | 71,029 | $210.2K | 0.07% | 2025-09-30 |
| 61 | Utah Retirement Systems | 133,718 | $208.6K | 0.14% | 2025-12-31 |
| 62 | Nuveen, LLC | 131,823 | $205.6K | 0.14% | 2025-12-31 |
| 63 | Bank of New York Mellon Corp | 130,742 | $204.0K | 0.14% | 2025-12-31 |
| 64 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 115,000 | $179.4K | 0.12% | 2025-12-31 |
| 65 | STRS OHIO | 110,400 | $172.2K | 0.12% | 2025-12-31 |
| 66 | Graham Capital Management, L.P. | 104,851 | $163.6K | 0.11% | 2025-12-31 |
| 67 | Velan Capital Investment Management LP | 55,000 | $162.8K | 0.06% | 2025-09-30 |
| 68 | RHUMBLINE ADVISERS | 101,926 | $159.0K | 0.11% | 2025-12-31 |
| 69 | IEQ CAPITAL, LLC | 53,050 | $157.0K | 0.05% | 2025-09-30 |
| 70 | BANK OF MONTREAL /CAN/ | 52,380 | $155.0K | 0.05% | 2025-09-30 |
| 71 | Jasper Ridge Partners, L.P. | 95,068 | $148.3K | 0.10% | 2025-12-31 |
| 72 | ALLIANCEBERNSTEIN L.P. | 92,940 | $145.0K | 0.10% | 2025-12-31 |
| 73 | UBS Group AG | 91,497 | $142.7K | 0.10% | 2025-12-31 |
| 74 | LOS ANGELES CAPITAL MANAGEMENT LLC | 93,052 | $141.4K | 0.10% | 2025-12-31 |
| 75 | WELLS FARGO & COMPANY/MN | 89,851 | $140.2K | 0.10% | 2025-12-31 |
| 76 | HSBC HOLDINGS PLC | 48,666 | $139.7K | 0.05% | 2025-09-30 |
| 77 | Man Group plc | 86,162 | $134.4K | 0.09% | 2025-12-31 |
| 78 | SIMPLEX TRADING, LLC | 82,017 | $127.9K | 0.09% | 2025-12-31 |
| 79 | TUDOR INVESTMENT CORP ET AL | 41,282 | $122.2K | 0.04% | 2025-12-31 |
| 80 | Squarepoint Ops LLC | 77,618 | $121.1K | 0.08% | 2025-12-31 |
| 81 | Blackstone Inc. | 66,859 | $104.3K | 0.07% | 2025-12-31 |
| 82 | Quadrature Capital Ltd | 62,273 | $97.1K | 0.06% | 2025-12-31 |
| 83 | Persistent Asset Partners Ltd | 31,240 | $92.5K | 0.03% | 2025-12-31 |
| 84 | CITADEL ADVISORS LLC | 55,792 | $87.0K | 0.06% | 2025-12-31 |
| 85 | MetLife Investment Management, LLC | 28,820 | $85.3K | 0.03% | 2025-09-30 |
| 86 | Cannell & Spears LLC | 54,642 | $85.2K | 0.06% | 2025-12-31 |
| 87 | Lexington Partners L.P. | 53,488 | $83.4K | 0.05% | 2025-12-31 |
| 88 | Vanguard Personalized Indexing Management, LLC | 53,056 | $82.8K | 0.05% | 2025-12-31 |
| 89 | Apollon Wealth Management, LLC | 25,000 | $74.0K | 0.02% | 2025-09-30 |
| 90 | OXFORD ASSET MANAGEMENT LLP | 42,905 | $66.9K | 0.04% | 2025-12-31 |
| 91 | GROUP ONE TRADING LLC | 22,321 | $66.1K | 0.02% | 2025-09-30 |
| 92 | Tower Research Capital LLC (TRC) | 39,520 | $61.7K | 0.04% | 2025-12-31 |
| 93 | AMERICAN CENTURY COMPANIES INC | 20,481 | $60.6K | 0.02% | 2025-09-30 |
| 94 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 37,271 | $58.1K | 0.04% | 2025-12-31 |
| 95 | Erste Asset Management GmbH | 19,000 | $58.0K | 0.02% | 2025-09-30 |
| 96 | INTECH INVESTMENT MANAGEMENT LLC | 34,510 | $53.8K | 0.03% | 2025-12-31 |
| 97 | China Universal Asset Management Co., Ltd. | 17,741 | $52.5K | 0.01% | 2025-09-30 |
| 98 | PRUDENTIAL FINANCIAL INC | 32,225 | $50.3K | 0.03% | 2025-12-31 |
| 99 | JPMORGAN CHASE & CO | 32,070 | $50.0K | 0.03% | 2025-12-31 |
| 100 | Vontobel Holding Ltd. | 30,000 | $46.8K | 0.03% | 2025-12-31 |
| 101 | Creative Planning | 15,634 | $46.3K | 0.01% | 2025-09-30 |
| 102 | DLK Investment Management, LLC | 15,500 | $45.9K | 0.01% | 2025-09-30 |
| 103 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | 28,829 | $45.0K | 0.03% | 2025-12-31 |
| 104 | Russell Investments Group, Ltd. | 27,846 | $43.4K | 0.03% | 2025-12-31 |
| 105 | Engineers Gate Manager LP | 14,493 | $42.9K | 0.01% | 2025-09-30 |
| 106 | HAMILTON LANE ADVISORS LLC | 14,402 | $42.6K | 0.01% | 2025-09-30 |
| 107 | Dynamic Technology Lab Private Ltd | 25,881 | $40.0K | 0.02% | 2025-12-31 |
| 108 | WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | 11,970 | $36.7K | 0.01% | 2025-09-30 |
| 109 | Police & Firemen's Retirement System of New Jersey | 23,426 | $36.5K | 0.02% | 2025-12-31 |
| 110 | Point72 Asset Management, L.P. | 23,102 | $36.0K | 0.02% | 2025-12-31 |
| 111 | BNP PARIBAS FINANCIAL MARKETS | 22,385 | $34.9K | 0.02% | 2025-12-31 |
| 112 | Savant Capital, LLC | 11,698 | $34.6K | 0.01% | 2025-09-30 |
| 113 | HBK Sorce Advisory LLC | 11,171 | $34.4K | 0.01% | 2025-09-30 |
| 114 | HERSHEY TRUST CO | 20,572 | $32.1K | 0.02% | 2025-12-31 |
| 115 | Belvedere Trading LLC | 10,486 | $31.0K | 0.01% | 2025-09-30 |
| 116 | Pinegrove Venture Partners, LLC | 10,286 | $30.4K | 0.01% | 2025-09-30 |
| 117 | Bronte Capital Management Pty Ltd. | 19,282 | $30.1K | 0.02% | 2025-12-31 |
| 118 | Point72 (DIFC) Ltd | 9,807 | $29.0K | 0.01% | 2025-09-30 |
| 119 | SEI INVESTMENTS CO | 16,884 | $26.3K | 0.01% | 2025-12-31 |
| 120 | ProShare Advisors LLC | 14,672 | $22.9K | 0.01% | 2025-12-31 |
| 121 | Point72 Asia (Singapore) Pte. Ltd. | 7,636 | $22.6K | 0.00% | 2025-09-30 |
| 122 | NEUBERGER BERMAN GROUP LLC | 14,173 | $22.1K | 0.01% | 2025-12-31 |
| 123 | Diversified Trust Co | 14,102 | $22.0K | 0.01% | 2025-12-31 |
| 124 | Voya Investment Management LLC | 13,929 | $21.7K | 0.01% | 2025-12-31 |
| 125 | Cerity Partners LLC | 12,765 | $19.9K | 0.01% | 2025-12-31 |
| 126 | R Squared Ltd | 12,474 | $19.5K | 0.01% | 2025-12-31 |
| 127 | NEW YORK STATE COMMON RETIREMENT FUND | 10,310 | $16.1K | 0.01% | 2025-12-31 |
| 128 | Corient Private Wealth LLC | 10,288 | $16.0K | 0.01% | 2025-12-31 |
| 129 | HighTower Advisors, LLC | 10,011 | $15.6K | 0.01% | 2025-12-31 |
| 130 | Texas Yale Capital Corp. | 10,000 | $15.6K | 0.01% | 2025-12-31 |
| 131 | Ameritas Investment Partners, Inc. | 8,175 | $12.8K | 0.00% | 2025-12-31 |
| 132 | Mirae Asset Global Investments Co., Ltd. | 3,913 | $11.6K | 0.00% | 2025-09-30 |
| 133 | Arax Advisory Partners | 3,190 | $9.4K | 0.00% | 2025-09-30 |
| 134 | Legal & General Group Plc | 6,039 | $9.4K | 0.00% | 2025-12-31 |
| 135 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 4,940 | $7.7K | 0.00% | 2025-12-31 |
| 136 | Sterling Capital Management LLC | 4,421 | $6.9K | 0.00% | 2025-12-31 |
| 137 | GF FUND MANAGEMENT CO. LTD. | 2,178 | $6.4K | 0.00% | 2025-09-30 |
| 138 | CITIGROUP INC | 3,967 | $6.2K | 0.00% | 2025-12-31 |
| 139 | ACADIAN ASSET MANAGEMENT LLC | 3,442,449 | $5.4K | 3.85% | 2025-12-31 |
| 140 | Royal Bank of Canada | 2,361 | $4.0K | 0.00% | 2025-12-31 |
| 141 | Optiver Holding B.V. | 1,018 | $3.0K | 0.00% | 2025-09-30 |
| 142 | GAMMA Investing LLC | 1,075 | $1.7K | 0.00% | 2025-12-31 |
| 143 | NISA INVESTMENT ADVISORS, LLC | 1,016 | $1.6K | 0.00% | 2025-12-31 |
| 144 | Clearstead Advisors, LLC | 453 | $1.3K | 0.00% | 2025-09-30 |
| 145 | Fortitude Family Office, LLC | 439 | $1.3K | 0.00% | 2025-09-30 |
| 146 | Rise Advisors, LLC | 407 | $1.2K | 0.00% | 2025-09-30 |
| 147 | CHESAPEAKE ASSET MANAGEMENT LLC | 150 | $1.2K | 0.00% | 2025-12-31 |
| 148 | Rialto Wealth Management, LLC | 403 | $1.2K | 0.00% | 2025-09-30 |
| 149 | Physician Wealth Advisors, Inc. | 752 | $1.2K | 0.00% | 2025-12-31 |
| 150 | PNC Financial Services Group, Inc. | 370 | $1.1K | 0.00% | 2025-09-30 |
| 151 | OSAIC HOLDINGS, INC. | 620 | $967 | 0.00% | 2025-12-31 |
| 152 | True Wealth Design, LLC | 563 | $879 | 0.00% | 2025-12-31 |
| 153 | Hughes Financial Services, LLC | 553 | $863 | 0.00% | 2025-12-31 |
| 154 | DekaBank Deutsche Girozentrale | 100,000 | $661 | 0.11% | 2025-12-31 |
| 155 | Federation des caisses Desjardins du Quebec | 415 | $647 | 0.00% | 2025-12-31 |
| 156 | Wilmington Savings Fund Society, FSB | 400 | $624 | 0.00% | 2025-12-31 |
| 157 | Rockefeller Capital Management L.P. | 367 | $573 | 0.00% | 2025-12-31 |
| 158 | Advisory Services Network, LLC | 187 | $554 | 0.00% | 2025-09-30 |
| 159 | EverSource Wealth Advisors, LLC | 339 | $529 | 0.00% | 2025-12-31 |
| 160 | MARK SHEPTOFF FINANCIAL PLANNING, LLC | 300 | $468 | 0.00% | 2025-12-31 |
| 161 | GSA CAPITAL PARTNERS LLP | 225,566 | $352 | 0.25% | 2025-12-31 |
| 162 | ROTHSCHILD INVESTMENT LLC | 209 | $326 | 0.00% | 2025-12-31 |
| 163 | NATIONAL BANK OF CANADA /FI/ | 200 | $312 | 0.00% | 2025-12-31 |
| 164 | Allworth Financial LP | 84 | $249 | 0.00% | 2025-12-31 |
| 165 | IFP Advisors, Inc | 33 | $181 | 0.00% | 2025-12-31 |
| 166 | NewEdge Advisors, LLC | 32 | $95 | 0.00% | 2025-09-30 |
| 167 | HRT FINANCIAL LP | 57,341 | $89 | 0.06% | 2025-12-31 |
| 168 | Kingdom Financial Group LLC. | 48 | $75 | 0.00% | 2025-12-31 |
| 169 | PRICE T ROWE ASSOCIATES INC /MD/ | 36,659 | $58 | 0.04% | 2025-12-31 |
| 170 | FNY Investment Advisers, LLC | 15,000 | $44 | 0.01% | 2025-12-31 |
| 171 | SG Americas Securities, LLC | 27,002 | $42 | 0.03% | 2025-12-31 |
| 172 | Virtu Financial LLC | 21,886 | $34 | 0.02% | 2025-12-31 |
| 173 | SBI Securities Co., Ltd. | 20 | $31 | 0.00% | 2025-12-31 |
| 174 | CWM, LLC | 12,164 | $19 | 0.01% | 2025-12-31 |
| 175 | COMERICA BANK | 9 | $14 | 0.00% | 2025-12-31 |
| 176 | Truvestments Capital LLC | 2 | $6 | 0.00% | 2025-09-30 |
| 177 | AMALGAMATED BANK | 2,523 | $4 | 0.00% | 2025-12-31 |
| 178 | Daiwa Securities Group Inc. | 277 | $1 | 0.00% | 2025-09-30 |
| 179 | Avion Wealth | 336 | $0 | 0.00% | 2025-09-30 |