AlectorALEC
13F holders, Q4 2024 (December 31)150holders −9
22new positions
38sold out
6famous investors
$1.89avg. 13F price*
At the end of Q4 2024, 150 institutions reported holding Alector Inc. (ALEC) in their 13F filings, down 9 from Q3 2024. 22 opened new positions and 38 sold out. The largest holders were FMR LLC ($27.8M), Ra Capital Management, L.P. ($18.3M) and BlackRock, Inc. ($17.3M). 6 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Cliff Asness (0.0% of AQR Capital Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Alector Inc.
- CUSIP
- 014442107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 22 | $25.0M |
| Exits | 38 | $51.7M |
All 13F filers, Q3 2024 → Q4 2024: 15,929,762 shares bought and 19,015,363 shares sold, net −3,085,601 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 150 holders
| FMR LLC | 0.00% | Add +0.7% | 14,689,865 | $27.8M |
| Ra Capital Management, L.P. | 0.24% | New | 9,695,228 | $18.3M |
| BlackRock, Inc. | 0.00% | Reduce -2.3% | 9,136,747 | $17.3M |
| Vanguard Group Inc. | 0.00% | Add +2.9% | 5,616,379 | $10.6M |
| Merck & Co., Inc. | 2.60% | — | 3,545,719 | $6.7M |
| Geode Capital Management, LLC | 0.00% | Add +0.5% | 1,914,250 | $3.6M |
| State Street Corp. | 0.00% | Reduce -29.3% | 1,849,295 | $3.5M |
| JPMorgan Chase & Co. | 0.00% | Reduce -39.8% | 1,642,570 | $3.1M |
| Euclidean Capital LLC | 0.34% | No change | 1,307,858 | $2.5M |
| Deutsche Bank AG | 0.00% | Reduce -4.2% | 1,106,287 | $2.1M |
| Deerfield Management Company, L.P. | 0.04% | Add +1.1% | 1,066,962 | $2.0M |
| Jacobs Levy Equity Management, Inc. | 0.01% | Add +4.1% | 1,059,691 | $2.0M |
| Acadian Asset Management LLC | 0.01% | Add +39.2% | 1,030,456 | $1.9M |
| 5AM Venture Management, LLC | 0.45% | New | 995,841 | $1.9M |
| Ikarian Capital, LLC | 0.51% | New | 950,000 | $1.8M |
| Franklin Resources Inc. | 0.00% | Reduce -3.4% | 930,534 | $1.8M |
| Renaissance Technologies | 0.00% | Add +63.0% | 915,738 | $1.7M |
| DAFNA Capital Management LLC | 0.44% | No change | 912,928 | $1.7M |
| Dimensional Fund Advisors LP | 0.00% | Add +21.7% | 882,120 | $1.7M |
| Northern Trust Corp. | 0.00% | Add +5.6% | 759,874 | $1.4M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -8.6% | 746,088 | $1.4M |
| Morgan Stanley | 0.00% | Reduce -85.1% | 650,541 | $1.2M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -15.4% | 643,456 | $1.2M |
| Sio Capital Management, LLC | 0.33% | New | 615,628 | $1.2M |
| AQR Capital Management | 0.00% | Add +170.6% | 562,936 | $1.1M |
| Two Sigma Advisers, LP | 0.00% | Add +8.9% | 429,900 | $813K |
| Citadel Advisors | 0.00% | Add +117.1% | 424,971 | $803K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -20.0% | 409,076 | $773K |
| Two Sigma Investments, LP | 0.00% | Add +55.4% | 407,989 | $771K |
| Panagora Asset Management Inc. | 0.00% | Reduce -3.5% | 369,079 | $698K |
| D. E. Shaw & Co. | 0.00% | Add +93.2% | 368,977 | $697K |
| ADAR1 Capital Management, LLC | 0.15% | Reduce -14.1% | 368,330 | $696K |
| New Leaf Venture Partners, L.L.C. | 0.86% | No change | 339,569 | $642K |
| Sphera Funds Management LTD. | 0.11% | Reduce -47.6% | 324,639 | $614K |
| Bank of America Corp. | 0.00% | Reduce -12.2% | 318,648 | $602K |
| Boothbay Fund Management, LLC | 0.02% | New | 294,156 | $556K |
| Almitas Capital LLC | 0.12% | New | 284,845 | $538K |
| Jane Street Group, LLC | 0.00% | Add +58.1% | 244,933 | $463K |
| Diadema Partners LP | 0.51% | — | 239,019 | $452K |
| Bank of New York Mellon Corp | 0.00% | Add +2.0% | 230,729 | $436K |
| Eversept Partners, LP | 0.04% | Reduce -39.9% | 200,095 | $378K |
| Susquehanna International Group, LLP | 0.00% | Add +161.0% | 199,762 | $378K |
| Nuveen Asset Management, LLC | 0.00% | Reduce -28.1% | 187,042 | $354K |
| Barclays PLC | 0.00% | Reduce -0.1% | 176,569 | $334K |
| Alphabet Inc. | 0.02% | No change | 175,866 | $332K |
| Medici Capital LLC | 0.41% | No change | 167,191 | $316K |
| BNP Paribas Financial Markets | 0.00% | Add +723.0% | 165,589 | $313K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +12.2% | 160,570 | $303K |
| Nordea Investment Management AB | 0.00% | Add +5.0% | 165,713 | $295K |
| Walleye Capital LLC | 0.00% | Reduce -28.1% | 146,679 | $277K |
| Susquehanna Fundamental Investments, LLC | 0.00% | — | 145,037 | $274K |
| Jupiter Asset Management Ltd. | 0.00% | Reduce -42.0% | 134,789 | $255K |
| Swiss National Bank | 0.00% | No change | 131,900 | $249K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -0.6% | 122,976 | $232K |
| UBS Group AG | 0.00% | Add +1.0% | 118,110 | $223K |
| Rhumbline Advisers | 0.00% | Add +1.7% | 115,895 | $219K |
| TD Asset Management Inc | 0.00% | No change | 111,738 | $211K |
| Aristides Capital LLC | 0.06% | New | 106,600 | $201K |
| STRS Ohio | 0.00% | No change | 102,600 | $194K |
| Cercano Management LLC | 0.00% | No change | 93,633 | $177K |
| DekaBank Deutsche Girozentrale | 0.00% | No change | 100,000 | $176K |
| Los Angeles Capital Management LLC | 0.00% | Add +61.2% | 90,736 | $171K |
| Verition Fund Management LLC | 0.00% | Add +28.2% | 82,499 | $156K |
| Alliancebernstein L.P. | 0.00% | Reduce -88.5% | 82,100 | $155K |
| Alps Advisors Inc. | 0.00% | Add +2.4% | 79,115 | $150K |
| Millennium Management | 0.00% | Add +45.8% | 74,685 | $141K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -2.3% | 73,153 | $138K |
| Citigroup Inc. | 0.00% | Add +16.1% | 69,773 | $132K |
| Legal & General Group Plc | 0.00% | Add +8.7% | 66,172 | $125K |
| California State Teachers Retirement System | 0.00% | No change | 64,740 | $122K |
| Cannell & Spears LLC | 0.00% | Reduce -6.2% | 61,613 | $116K |
| HSBC Holdings PLC | 0.00% | Add +26.1% | 57,983 | $109K |
| American Century Companies Inc. | 0.00% | Reduce -11.1% | 56,735 | $107K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -22.6% | 56,239 | $106K |
| Velan Capital Investment Management LP | 0.09% | New | 55,000 | $104K |
| Utah Retirement Systems | 0.00% | No change | 51,430 | $97K |
| XTX Topco Ltd | 0.01% | Add +78.3% | 50,971 | $96K |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | 0.00% | New | 50,000 | $95K |
| Marshall Wace, LLP | 0.00% | Reduce -10.3% | 48,448 | $92K |
| Invesco Ltd. | 0.00% | Add +27.7% | 47,985 | $91K |
| Algert Global LLC | 0.00% | Reduce -28.2% | 44,460 | $84K |
| Tudor Investment Corporation | 0.00% | New | 40,796 | $77K |
| Corebridge Financial, Inc. | 0.00% | Reduce -7.0% | 40,123 | $76K |
| SG Americas Securities, LLC | 0.00% | Add +27.9% | 39,334 | $74K |
| Wells Fargo & Company | 0.00% | Add +50.0% | 37,966 | $72K |
| Jain Global LLC | 0.00% | — | 36,775 | $70K |
| Intech Investment Management LLC | 0.00% | Add +83.5% | 35,382 | $67K |
| Jasper Ridge Partners, L.P. | 0.00% | No change | 30,632 | $58K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +58.4% | 28,084 | $53K |
| ProShare Advisors LLC | 0.00% | Add +30.3% | 27,367 | $52K |
| Rpo LLC | 0.07% | New | 26,395 | $50K |
| Voya Investment Management LLC | 0.00% | Reduce -6.4% | 25,766 | $49K |
| Blackstone Inc. | 0.00% | No change | 25,715 | $49K |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 25,570 | $48K |
| Apollon Wealth Management, LLC | 0.00% | New | 25,000 | $47K |
| Vontobel Holding Ltd. | 0.00% | Add +127.3% | 25,000 | $47K |
| Janus Henderson Group PLC | 0.00% | No change | 23,340 | $44K |
| Shell Asset Management Co. | 0.00% | No change | 21,493 | $41K |
| China Universal Asset Management Co., Ltd. | 0.00% | Add +10.9% | 20,765 | $39K |
| Teacher Retirement System of Texas | 0.00% | Add +21.5% | 20,554 | $39K |
"% of holder's portfolio" is ALEC's weight in each manager's 13F, not the share of Alector Inc. the manager owns.