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, Q1 2021
Institutional positions in Alector, Inc. as of Mar 31, 2021. 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
- 127
- No complete 13F data for Q4 2020
- Shares held
- 46.3M
- No complete 13F data for Q4 2020
- Total value
- $931.7M
- No complete 13F data for Q4 2020
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, Q1 2021
Shares, value and share of portfolio for each institution holding Alector, Inc..
Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Nuveen Asset Management, LLC | 208,660 | $4.20M | 0.00% | – | – |
| Baker Bros. Advisors LP | 239,228 | $4.82M | 0.02% | – | – |
| Ikarian Capital, LLC | 257,500 | $5.18M | 0.77% | – | – |
| Baillie Gifford & Co | 262,213 | $5.28M | 0.00% | – | – |
| Dimensional Fund Advisors LP | 273,085 | $5.49M | 0.00% | – | – |
| Two Sigma Advisers, LP | 320,800 | $6.46M | 0.02% | – | – |
| New Leaf Venture Partners, L.L.C. | 339,569 | $6.84M | 1.59% | – | – |
| Charles Schwab Investment Management Inc | 345,636 | $6.96M | 0.00% | – | – |
| Pier Capital, LLC | 505,403 | $10.2M | 0.97% | – | – |
| Northern Trust Corp | 549,444 | $11.1M | 0.00% | – | – |
| EcoR1 Capital, LLC | 602,600 | $12.1M | 0.54% | – | – |
| OrbiMed Advisors LLC | 611,478 | $12.3M | 0.12% | – | – |
| Goldman Sachs Group Inc | 708,881 | $14.3M | 0.00% | – | – |
| Geode Capital Management, LLC | 848,995 | $17.1M | 0.00% | – | – |
| Morgan Stanley | 948,464 | $19.1M | 0.00% | – | – |
| Euclidean Capital LLC | 980,894 | $19.8M | 6.61% | – | – |
| Deerfield Management Company, L.P. (Series C) | 1,055,192 | $21.3M | 0.45% | – | – |
| Casdin Capital, LLC | 1,650,000 | $33.2M | 0.99% | – | – |
| Gilder Gagnon Howe & Co LLC | 1,832,690 | $36.9M | 0.20% | – | – |
| JPMorgan Chase & Co | 2,617,398 | $52.7M | 0.01% | – | – |
| Price T Rowe Associates Inc | 2,693,574 | $54.2M | 0.01% | – | – |
| State Street Corp | 2,713,096 | $54.6M | 0.00% | – | – |
| Franklin Resources Inc | 3,258,108 | $65.6M | 0.03% | – | – |
| FMR LLC | 3,757,792 | $75.7M | 0.01% | – | – |
| Federated Hermes, Inc. | 4,641,799 | $93.5M | 0.18% | – | – |
| Vanguard Group Inc | 5,169,539 | $104.1M | 0.00% | – | – |
| BlackRock Inc. | 5,283,509 | $106.4M | 0.00% | – | – |