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 |
|---|---|---|---|---|---|
| DekaBank Deutsche Girozentrale | 100,000 | $491.0K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 114,004 | $531.2K | 0.00% | +4,080+3.7% | Added |
| UBS Group AG | 116,952 | $545.0K | 0.00% | +11,267+10.7% | Added |
| TD Asset Management Inc | 111,738 | $549.8K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 123,716 | $576.5K | 0.00% | −1,103−0.9% | Reduced |
| Swiss National Bank | 131,900 | $614.7K | 0.00% | 00.0% | Unchanged |
| Wellington Management Group LLP | 137,152 | $639.1K | 0.00% | +137,152 | New |
| UBS Asset Management Americas Inc | 143,061 | $666.7K | 0.00% | −10,920−7.1% | Reduced |
| Jane Street Group, LLC | 154,942 | $722.0K | 0.00% | +30,180+24.2% | Added |
| Nordea Investment Management AB | 157,742 | $761.9K | 0.00% | −2,257−1.4% | Reduced |
| Medici Capital LLC | 167,191 | $779.1K | 1.52% | 00.0% | Unchanged |
| Massachusetts Financial Services Co | 174,718 | $814.2K | 0.00% | +61,798+54.7% | Added |
| Alphabet Inc. | 175,866 | $819.5K | 0.04% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 176,209 | $821.1K | 0.00% | +73,103+70.9% | Added |
| Barclays PLC | 176,800 | $823.9K | 0.00% | +100,731+132.4% | Added |
| Stifel Financial Corp | 179,296 | $835.5K | 0.00% | −34,715−16.2% | Reduced |
| Victory Capital Management Inc | 186,747 | $870.2K | 0.00% | +30,513+19.5% | Added |
| D. E. Shaw & Co., Inc. | 190,992 | $890.0K | 0.00% | −161,251−45.8% | Reduced |
| Artia Global Partners LP | 193,317 | $900.9K | 0.25% | +193,317 | New |
| Citadel Advisors LLC | 195,784 | $912.4K | 0.00% | +195,784 | New |
| Walleye Capital LLC | 204,067 | $951.0K | 0.01% | −74,205−26.7% | Reduced |
| AQR Capital Management LLC | 208,001 | $969.3K | 0.00% | +23,490+12.7% | Added |
| Bank of New York Mellon Corp | 226,109 | $1.05M | 0.00% | −53,829−19.2% | Reduced |
| Jupiter Asset Management Ltd | 232,219 | $1.08M | 0.01% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 260,106 | $1.21M | 0.00% | −8,994−3.3% | Reduced |
| Two Sigma Investments, LP | 262,522 | $1.22M | 0.00% | −39,616−13.1% | Reduced |
| Eversept Partners, LP | 332,756 | $1.55M | 0.12% | −208,983−38.6% | Reduced |
| New Leaf Venture Partners, L.L.C. | 339,569 | $1.58M | 1.63% | 00.0% | Unchanged |
| Bank of America Corp | 362,900 | $1.69M | 0.00% | +3,515+1.0% | Added |
| Panagora Asset Management Inc | 382,409 | $1.78M | 0.01% | +27,091+7.6% | Added |
| Two Sigma Advisers, LP | 394,900 | $1.84M | 0.00% | −84,800−17.7% | Reduced |
| ADAR1 Capital Management, LLC | 428,802 | $2.00M | 0.33% | +233,491+119.5% | Added |
| Goldman Sachs Group Inc | 511,293 | $2.38M | 0.00% | +122,898+31.6% | Added |
| Renaissance Technologies LLC | 561,750 | $2.62M | 0.00% | −93,300−14.2% | Reduced |
| Sphera Funds Management Ltd. | 620,000 | $2.89M | 0.47% | +10,000+1.6% | Added |
| Alyeska Investment Group, L.P. | 656,182 | $3.06M | 0.02% | +400,000+156.1% | Added |
| Alliancebernstein L.P. | 711,545 | $3.32M | 0.00% | −55,428−7.2% | Reduced |
| Northern Trust Corp | 719,583 | $3.35M | 0.00% | +70,855+10.9% | Added |
| Dimensional Fund Advisors LP | 724,889 | $3.38M | 0.00% | +48,813+7.2% | Added |
| Acadian Asset Management LLC | 740,235 | $3.45M | 0.01% | +149,573+25.3% | Added |
| Charles Schwab Investment Management Inc | 760,606 | $3.54M | 0.00% | +94,145+14.1% | Added |
| Price T Rowe Associates Inc | 816,458 | $3.81M | 0.00% | −53,120−6.1% | Reduced |
| DAFNA Capital Management LLC | 912,928 | $4.25M | 1.00% | 00.0% | Unchanged |
| Baker Bros. Advisors LP | 927,264 | $4.32M | 0.04% | 00.0% | Unchanged |
| Franklin Resources Inc | 963,484 | $4.72M | 0.00% | +1150.0% | Added |
| Jacobs Levy Equity Management, Inc | 1,017,687 | $4.74M | 0.02% | +159,111+18.5% | Added |
| Deerfield Management Company, L.P. (Series C) | 1,055,192 | $4.92M | 0.07% | −93,134−8.1% | Reduced |
| Deutsche Bank AG | 1,154,337 | $5.38M | 0.00% | −1,073,944−48.2% | Reduced |
| Soleus Capital Management, L.P. | 1,207,371 | $5.63M | 0.47% | −1,031,635−46.1% | Reduced |
| Euclidean Capital LLC | 1,307,858 | $6.09M | 0.67% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 1,903,942 | $8.87M | 0.00% | +148,357+8.5% | Added |
| Braidwell LP | 2,158,245 | $10.1M | 0.29% | −222,459−9.3% | Reduced |
| State Street Corp | 2,616,809 | $12.2M | 0.00% | −173,068−6.2% | Reduced |
| JPMorgan Chase & Co | 2,728,823 | $12.7M | 0.00% | +1,072,298+64.7% | Added |
| Morgan Stanley | 4,355,770 | $20.3M | 0.00% | +1,350,697+44.9% | Added |
| Deep Track Capital, LP | 4,631,998 | $21.6M | 0.69% | 00.0% | Unchanged |
| Vanguard Group Inc | 5,455,727 | $25.4M | 0.00% | +134,757+2.5% | Added |
| BlackRock, Inc. | 9,352,044 | $43.6M | 0.00% | +9,352,044 | New |
| FMR LLC | 14,595,014 | $68.0M | 0.00% | +137,794+1.0% | Added |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −130,058−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −92,218−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −89,892−100.0% | Sold out |
| PDT Partners, LLC | 0 | $0 | 0.00% | −42,444−100.0% | Sold out |
| State of Wisconsin Investment Board | 0 | $0 | 0.00% | −39,498−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −39,070−100.0% | Sold out |
| Vident Advisory, LLC | 0 | $0 | 0.00% | −33,978−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −33,461−100.0% | Sold out |
| Sherbrooke Park Advisers LLC | 0 | $0 | 0.00% | −25,156−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −20,337−100.0% | Sold out |
| Caxton Associates LP | 0 | $0 | 0.00% | −20,282−100.0% | Sold out |
| Principal Financial Group Inc | 0 | $0 | 0.00% | −14,773−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −13,718−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −13,639−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −10,084−100.0% | Sold out |
| Texas Yale Capital Corp. | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Gladius Capital Management LP | 0 | $0 | 0.00% | −6,402−100.0% | Sold out |
| Picton Mahoney Asset Management | 0 | $0 | 0.00% | −673−100.0% | Sold out |
| Pacer Advisors, Inc. | 0 | $0 | 0.00% | −572−100.0% | Sold out |
| BlackRock Inc. | – | – | – | – | Not filed |
| Susquehanna Fundamental Investments, LLC | – | – | – | – | Not filed |