Alector, Inc.
ALEC- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001653087
In the last 90 days, Alector, Inc. insiders filed 0 open-market purchases and 3 sales; 140 institutions reported holding it in 13F filings for Q2 2026, worth $183.4M in total; no superinvestor holds it.
13F holders, Q3 2024
Institutional positions in Alector, Inc. as of Sep 30, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 159
- +1 vs. Q2 2024
- Shares held
- 72.5M
- +8.99M (+14.1%) vs. Q2 2024
- Total value
- $338.4M
- +$49.9M (+17.3%) vs. Q2 2024
- New holders
- 20
- 48 more added
- Sold out
- 19
- 50 more reduced
2 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ALEC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 140 | $183.4M |
| Q1 2026 | 138 | $190.0M |
| Q4 2025 | 131 | $131.5M |
| Q3 2025 | 149 | $221.2M |
| Q2 2025 | 136 | $98.7M |
| Q1 2025 | 141 | $89.1M |
| Q4 2024 | 150 | $138.8M |
| Q3 2024 | 159 | $338.4M |
| Q2 2024 | 160 | $330.4M |
| Q1 2024 | 157 | $446.6M |
| Q4 2023 | 148 | $510.1M |
| Q3 2023 | 149 | $402.6M |
| Q2 2023 | 145 | $354.5M |
| Q1 2023 | 149 | $360.9M |
| Q4 2022 | 155 | $506.0M |
| Q3 2022 | 168 | $516.1M |
| Q2 2022 | 154 | $546.8M |
| Q1 2022 | 166 | $789.8M |
| Q4 2021 | 167 | $1.13B |
| Q3 2021 | 145 | $1.19B |
| Q2 2021 | 138 | $1.02B |
| Q1 2021 | 127 | $931.7M |
Institutions, Q3 2024
Shares, value and share of portfolio for each institution holding Alector, Inc.; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 14,595,014 | $68.0M | 0.00% | +137,794+1.0% | Added |
| BlackRock, Inc. | 9,352,044 | $43.6M | 0.00% | +9,352,044 | New |
| Vanguard Group Inc | 5,455,727 | $25.4M | 0.00% | +134,757+2.5% | Added |
| Deep Track Capital, LP | 4,631,998 | $21.6M | 0.69% | 00.0% | Unchanged |
| Morgan Stanley | 4,355,770 | $20.3M | 0.00% | +1,350,697+44.9% | Added |
| JPMorgan Chase & Co | 2,728,823 | $12.7M | 0.00% | +1,072,298+64.7% | Added |
| State Street Corp | 2,616,809 | $12.2M | 0.00% | −173,068−6.2% | Reduced |
| Braidwell LP | 2,158,245 | $10.1M | 0.29% | −222,459−9.3% | Reduced |
| Geode Capital Management, LLC | 1,903,942 | $8.87M | 0.00% | +148,357+8.5% | Added |
| Euclidean Capital LLC | 1,307,858 | $6.09M | 0.67% | 00.0% | Unchanged |
| Soleus Capital Management, L.P. | 1,207,371 | $5.63M | 0.47% | −1,031,635−46.1% | Reduced |
| Deutsche Bank AG | 1,154,337 | $5.38M | 0.00% | −1,073,944−48.2% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 1,055,192 | $4.92M | 0.07% | −93,134−8.1% | Reduced |
| Jacobs Levy Equity Management, Inc | 1,017,687 | $4.74M | 0.02% | +159,111+18.5% | Added |
| Franklin Resources Inc | 963,484 | $4.72M | 0.00% | +1150.0% | Added |
| Baker Bros. Advisors LP | 927,264 | $4.32M | 0.04% | 00.0% | Unchanged |
| DAFNA Capital Management LLC | 912,928 | $4.25M | 1.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 816,458 | $3.81M | 0.00% | −53,120−6.1% | Reduced |
| Charles Schwab Investment Management Inc | 760,606 | $3.54M | 0.00% | +94,145+14.1% | Added |
| Acadian Asset Management LLC | 740,235 | $3.45M | 0.01% | +149,573+25.3% | Added |
| Dimensional Fund Advisors LP | 724,889 | $3.38M | 0.00% | +48,813+7.2% | Added |
| Northern Trust Corp | 719,583 | $3.35M | 0.00% | +70,855+10.9% | Added |
| Alliancebernstein L.P. | 711,545 | $3.32M | 0.00% | −55,428−7.2% | Reduced |
| Alyeska Investment Group, L.P. | 656,182 | $3.06M | 0.02% | +400,000+156.1% | Added |
| Sphera Funds Management Ltd. | 620,000 | $2.89M | 0.47% | +10,000+1.6% | Added |
| Renaissance Technologies LLC | 561,750 | $2.62M | 0.00% | −93,300−14.2% | Reduced |
| Goldman Sachs Group Inc | 511,293 | $2.38M | 0.00% | +122,898+31.6% | Added |
| ADAR1 Capital Management, LLC | 428,802 | $2.00M | 0.33% | +233,491+119.5% | Added |
| Two Sigma Advisers, LP | 394,900 | $1.84M | 0.00% | −84,800−17.7% | Reduced |
| Panagora Asset Management Inc | 382,409 | $1.78M | 0.01% | +27,091+7.6% | Added |
| Bank of America Corp | 362,900 | $1.69M | 0.00% | +3,515+1.0% | Added |
| New Leaf Venture Partners, L.L.C. | 339,569 | $1.58M | 1.63% | 00.0% | Unchanged |
| Eversept Partners, LP | 332,756 | $1.55M | 0.12% | −208,983−38.6% | Reduced |
| Two Sigma Investments, LP | 262,522 | $1.22M | 0.00% | −39,616−13.1% | Reduced |
| Nuveen Asset Management, LLC | 260,106 | $1.21M | 0.00% | −8,994−3.3% | Reduced |
| Jupiter Asset Management Ltd | 232,219 | $1.08M | 0.01% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 226,109 | $1.05M | 0.00% | −53,829−19.2% | Reduced |
| AQR Capital Management LLC | 208,001 | $969.3K | 0.00% | +23,490+12.7% | Added |
| Walleye Capital LLC | 204,067 | $951.0K | 0.01% | −74,205−26.7% | Reduced |
| Citadel Advisors LLC | 195,784 | $912.4K | 0.00% | +195,784 | New |
| Artia Global Partners LP | 193,317 | $900.9K | 0.25% | +193,317 | New |
| D. E. Shaw & Co., Inc. | 190,992 | $890.0K | 0.00% | −161,251−45.8% | Reduced |
| Victory Capital Management Inc | 186,747 | $870.2K | 0.00% | +30,513+19.5% | Added |
| Stifel Financial Corp | 179,296 | $835.5K | 0.00% | −34,715−16.2% | Reduced |
| Barclays PLC | 176,800 | $823.9K | 0.00% | +100,731+132.4% | Added |
| Ameriprise Financial Inc | 176,209 | $821.1K | 0.00% | +73,103+70.9% | Added |
| Alphabet Inc. | 175,866 | $819.5K | 0.04% | 00.0% | Unchanged |
| Massachusetts Financial Services Co | 174,718 | $814.2K | 0.00% | +61,798+54.7% | Added |
| Medici Capital LLC | 167,191 | $779.1K | 1.52% | 00.0% | Unchanged |
| Nordea Investment Management AB | 157,742 | $761.9K | 0.00% | −2,257−1.4% | Reduced |
| Jane Street Group, LLC | 154,942 | $722.0K | 0.00% | +30,180+24.2% | Added |
| UBS Asset Management Americas Inc | 143,061 | $666.7K | 0.00% | −10,920−7.1% | Reduced |
| Wellington Management Group LLP | 137,152 | $639.1K | 0.00% | +137,152 | New |
| Swiss National Bank | 131,900 | $614.7K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 123,716 | $576.5K | 0.00% | −1,103−0.9% | Reduced |
| TD Asset Management Inc | 111,738 | $549.8K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 116,952 | $545.0K | 0.00% | +11,267+10.7% | Added |
| Rhumbline Advisers | 114,004 | $531.2K | 0.00% | +4,080+3.7% | Added |
| DekaBank Deutsche Girozentrale | 100,000 | $491.0K | 0.00% | 00.0% | Unchanged |
| STRS Ohio | 102,600 | $478.1K | 0.00% | 00.0% | Unchanged |
| Trexquant Investment LP | 102,463 | $477.5K | 0.01% | −44,096−30.1% | Reduced |
| Cercano Management LLC | 93,633 | $436.3K | 0.01% | +93,633 | New |
| Point72 Asset Management, L.P. | 84,538 | $393.9K | 0.00% | −529,847−86.2% | Reduced |
| Baillie Gifford & Co | 78,835 | $367.4K | 0.00% | −181,607−69.7% | Reduced |
| Alps Advisors Inc | 77,232 | $359.9K | 0.00% | +2,055+2.7% | Added |
| Susquehanna International Group, LLP | 76,540 | $356.7K | 0.00% | +55,848+269.9% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 74,887 | $349.7K | 0.00% | +6,721+9.9% | Added |
| Rafferty Asset Management, LLC | 72,750 | $339.0K | 0.00% | −27,882−27.7% | Reduced |
| Russell Investments Group, Ltd. | 72,625 | $338.4K | 0.00% | −11,188−13.3% | Reduced |
| Spears Abacus Advisors LLC | 65,663 | $306.0K | 0.01% | 00.0% | Unchanged |
| California State Teachers Retirement System | 64,740 | $301.7K | 0.00% | −1,954−2.9% | Reduced |
| Verition Fund Management LLC | 64,369 | $300.0K | 0.00% | −473,794−88.0% | Reduced |
| American Century Companies Inc | 63,838 | $297.5K | 0.00% | +13,755+27.5% | Added |
| Algert Global LLC | 61,912 | $288.5K | 0.01% | +18,400+42.3% | Added |
| Legal & General Group Plc | 60,853 | $284.0K | 0.00% | −169−0.3% | Reduced |
| Citigroup Inc | 60,075 | $279.9K | 0.00% | +27,548+84.7% | Added |
| Los Angeles Capital Management LLC | 56,286 | $262.3K | 0.00% | −6,900−10.9% | Reduced |
| Marshall Wace, LLP | 54,000 | $251.6K | 0.00% | +1,391+2.6% | Added |
| Utah Retirement Systems | 51,430 | $239.7K | 0.00% | 00.0% | Unchanged |
| Millennium Management LLC | 51,218 | $238.7K | 0.00% | −105,562−67.3% | Reduced |
| MetLife Investment Management | 50,369 | $234.7K | 0.00% | 00.0% | Unchanged |
| HRT Financial LP | 49,363 | $230.0K | 0.00% | +49,363 | New |
| Simplex Trading, LLC | 46,344 | $215.0K | 0.01% | +22,913+97.8% | Added |
| HSBC Holdings PLC | 45,979 | $213.8K | 0.00% | −1,120−2.4% | Reduced |
| Man Group plc | 44,649 | $208.1K | 0.00% | −22,888−33.9% | Reduced |
| EntryPoint Capital, LLC | 43,751 | $203.9K | 0.12% | −56,698−56.4% | Reduced |
| Corebridge Financial, Inc. | 43,151 | $201.1K | 0.00% | −266−0.6% | Reduced |
| Engineers Gate Manager LP | 40,207 | $187.4K | 0.00% | +13,627+51.3% | Added |
| Invesco Ltd. | 37,580 | $175.1K | 0.00% | +1,092+3.0% | Added |
| Federated Hermes, Inc. | 33,436 | $155.8K | 0.00% | −35,102−51.2% | Reduced |
| Amundi | 31,790 | $147.2K | 0.00% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 30,753 | $143.0K | 0.00% | −33,430−52.1% | Reduced |
| Jasper Ridge Partners, L.P. | 30,632 | $142.7K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 28,590 | $133.2K | 0.01% | −2,479−8.0% | Reduced |
| Voya Investment Management LLC | 27,541 | $128.3K | 0.00% | −292−1.0% | Reduced |
| Blackstone Group Inc. | 25,715 | $119.8K | 0.00% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 25,570 | $119.2K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 25,313 | $118.0K | 0.00% | −781−3.0% | Reduced |
| Janus Henderson Group PLC | 23,340 | $109.0K | 0.00% | 00.0% | Unchanged |
| Corton Capital Inc. | 23,237 | $108.3K | 0.05% | −56,641−70.9% | Reduced |