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 2023
Institutional positions in Alector, Inc. as of Mar 31, 2023. 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
- 149
- −6 vs. Q4 2022
- Shares held
- 58.0M
- +3.17M (+5.8%) vs. Q4 2022
- Total value
- $360.9M
- −$145.1M (−28.7%) vs. Q4 2022
- New holders
- 13
- 52 more added
- Sold out
- 19
- 39 more reduced
Compare with Q4 2022: 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, Q1 2023
Shares, value and share of portfolio for each institution holding Alector, Inc.; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Russell Investments Group, Ltd. | 151,262 | $936.3K | 0.00% | +38,953+34.7% | Added |
| Susquehanna International Group, LLP | 153,016 | $947.2K | 0.00% | +92,646+153.5% | Added |
| Newtyn Management, LLC | 155,000 | $959.5K | 0.19% | +10,000+6.9% | Added |
| Deutsche Bank AG | 156,831 | $970.8K | 0.00% | +6,768+4.5% | Added |
| Alphabet Inc. | 175,866 | $1.09M | 0.06% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 179,783 | $1.11M | 0.00% | +122,083+211.6% | Added |
| Platinum Investment Management Ltd | 181,689 | $1.12M | 0.04% | 00.0% | Unchanged |
| Victory Capital Management Inc | 186,663 | $1.16M | 0.00% | +19,977+12.0% | Added |
| Jupiter Asset Management Ltd | 199,547 | $1.23M | 0.02% | +166,425+502.5% | Added |
| American Century Companies Inc | 203,342 | $1.24M | 0.00% | −129,518−38.9% | Reduced |
| Los Angeles Capital Management LLC | 202,110 | $1.25M | 0.01% | −46,784−18.8% | Reduced |
| Citigroup Inc | 208,176 | $1.29M | 0.00% | +108,000+107.8% | Added |
| Bank of New York Mellon Corp | 209,087 | $1.29M | 0.00% | −2,691−1.3% | Reduced |
| Schroder Investment Management Group | 210,665 | $1.30M | 0.00% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 221,516 | $1.37M | 0.00% | +32,911+17.4% | Added |
| Rafferty Asset Management, LLC | 248,145 | $1.54M | 0.01% | +40,248+19.4% | Added |
| Panagora Asset Management Inc | 298,218 | $1.85M | 0.01% | +112,207+60.3% | Added |
| Man Group plc | – | $1.87M | 0.01% | – | – |
| New Leaf Venture Partners, L.L.C. | 339,569 | $2.10M | 1.74% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 341,636 | $2.11M | 0.00% | −173,948−33.7% | Reduced |
| Pier Capital, LLC | 363,608 | $2.25M | 0.34% | −7,741−2.1% | Reduced |
| Two Sigma Investments, LP | 366,305 | $2.27M | 0.01% | +115,818+46.2% | Added |
| Baillie Gifford & Co | 390,113 | $2.41M | 0.00% | +4,156+1.1% | Added |
| Nuveen Asset Management, LLC | 427,971 | $2.65M | 0.00% | −22,704−5.0% | Reduced |
| Jacobs Levy Equity Management, Inc | 428,696 | $2.65M | 0.02% | +214,095+99.8% | Added |
| Dimensional Fund Advisors LP | 439,542 | $2.72M | 0.00% | +274,513+166.3% | Added |
| Morgan Stanley | 448,962 | $2.78M | 0.00% | −145,998−24.5% | Reduced |
| Charles Schwab Investment Management Inc | 458,947 | $2.84M | 0.00% | +3,498+0.8% | Added |
| Bank of America Corp | 471,853 | $2.92M | 0.00% | +47,533+11.2% | Added |
| Two Sigma Advisers, LP | 472,800 | $2.93M | 0.01% | +76,700+19.4% | Added |
| Norges Bank | 572,904 | $3.55M | 0.00% | 00.0% | Unchanged |
| DAFNA Capital Management LLC | 592,438 | $3.67M | 1.10% | +60,000+11.3% | Added |
| Northern Trust Corp | 597,341 | $3.70M | 0.00% | +9,694+1.6% | Added |
| Renaissance Technologies LLC | 649,961 | $4.02M | 0.01% | +58,149+9.8% | Added |
| Price T Rowe Associates Inc | 675,363 | $4.18M | 0.00% | −1,053,350−60.9% | Reduced |
| Baker Bros. Advisors LP | 964,851 | $5.97M | 0.03% | +282,860+41.5% | Added |
| Euclidean Capital LLC | 980,894 | $6.07M | 5.33% | 00.0% | Unchanged |
| Deerfield Management Company, L.P. (Series C) | 1,055,192 | $6.53M | 0.15% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 1,218,724 | $7.54M | 0.00% | +26,435+2.2% | Added |
| Point72 Asset Management, L.P. | 1,333,342 | $8.25M | 0.03% | +1,333,342 | New |
| Franklin Resources Inc | 1,594,310 | $9.87M | 0.00% | +809+0.1% | Added |
| JPMorgan Chase & Co | 2,381,982 | $14.7M | 0.00% | −38,312−1.6% | Reduced |
| Federated Hermes, Inc. | 2,748,153 | $17.0M | 0.04% | −1,823,507−39.9% | Reduced |
| Braidwell LP | 3,206,315 | $19.8M | 0.65% | +2,481,291+342.2% | Added |
| State Street Corp | 3,565,331 | $22.1M | 0.00% | +335,814+10.4% | Added |
| EcoR1 Capital, LLC | 4,056,548 | $25.1M | 0.81% | 00.0% | Unchanged |
| FMR LLC | 6,387,376 | $39.5M | 0.00% | +1,675,436+35.6% | Added |
| Vanguard Group Inc | 6,404,163 | $39.6M | 0.00% | +39,552+0.6% | Added |
| BlackRock Inc. | 7,583,916 | $46.9M | 0.00% | +215,296+2.9% | Added |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −490,838−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −111,888−100.0% | Sold out |
| Swedbank AB | 0 | $0 | 0.00% | −75,900−100.0% | Sold out |
| Nomura Holdings Inc | 0 | $0 | 0.00% | −59,599−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −49,420−100.0% | Sold out |
| SEI Investments Co | 0 | $0 | 0.00% | −41,711−100.0% | Sold out |
| Envestnet Asset Management Inc | 0 | $0 | 0.00% | −33,425−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −29,850−100.0% | Sold out |
| Prudential Financial Inc | 0 | $0 | 0.00% | −20,622−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −17,100−100.0% | Sold out |
| Mercer Global Advisors Inc | 0 | $0 | 0.00% | −13,716−100.0% | Sold out |
| Alpine Global Management, LLC | 0 | $0 | 0.00% | −10,095−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −7,104−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −5,726−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −3,218−100.0% | Sold out |
| Rockefeller Capital Management L.P. | 0 | $0 | 0.00% | −1,020−100.0% | Sold out |
| TCI Wealth Advisors, Inc. | 0 | $0 | 0.00% | −369−100.0% | Sold out |
| Lindbrook Capital, LLC | 0 | $0 | 0.00% | −271−100.0% | Sold out |
| Allworth Financial LP | 0 | $0 | 0.00% | −25−100.0% | Sold out |