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, Q4 2022
Institutional positions in Alector, Inc. as of Dec 31, 2022. 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
- 155
- −12 vs. Q3 2022
- Shares held
- 54.8M
- +267.1K (+0.5%) vs. Q3 2022
- Total value
- $506.0M
- −$10.0M (−1.9%) vs. Q3 2022
- New holders
- 17
- 55 more added
- Sold out
- 29
- 49 more reduced
1 institution that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2022
Shares, value and share of portfolio for each institution holding Alector, Inc.; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 7,368,620 | $68.0M | 0.00% | +1,365,044+22.7% | Added |
| Vanguard Group Inc | 6,364,611 | $58.7M | 0.00% | +611,417+10.6% | Added |
| FMR LLC | 4,711,940 | $43.5M | 0.00% | −12,244−0.3% | Reduced |
| Federated Hermes, Inc. | 4,571,660 | $42.2M | 0.12% | −1,084,941−19.2% | Reduced |
| EcoR1 Capital, LLC | 4,056,548 | $37.4M | 1.14% | 00.0% | Unchanged |
| State Street Corp | 3,229,517 | $29.8M | 0.00% | −64,080−1.9% | Reduced |
| JPMorgan Chase & Co | 2,420,294 | $22.3M | 0.00% | +36,203+1.5% | Added |
| Price T Rowe Associates Inc | 1,728,713 | $16.0M | 0.00% | −14,678−0.8% | Reduced |
| Franklin Resources Inc | 1,593,501 | $14.7M | 0.01% | −4,953−0.3% | Reduced |
| Geode Capital Management, LLC | 1,192,289 | $11.0M | 0.00% | +73,761+6.6% | Added |
| Deerfield Management Company, L.P. (Series C) | 1,055,192 | $9.74M | 0.20% | 00.0% | Unchanged |
| Euclidean Capital LLC | 980,894 | $9.05M | 8.47% | 00.0% | Unchanged |
| Braidwell LP | 725,024 | $6.69M | 0.22% | +725,024 | New |
| Baker Bros. Advisors LP | 681,991 | $6.29M | 0.04% | +442,763+185.1% | Added |
| Morgan Stanley | 594,960 | $5.49M | 0.00% | +23,277+4.1% | Added |
| Renaissance Technologies LLC | 591,812 | $5.46M | 0.01% | −128,771−17.9% | Reduced |
| Northern Trust Corp | 587,647 | $5.42M | 0.00% | −6,160−1.0% | Reduced |
| Norges Bank | 572,904 | $5.29M | 0.00% | −92,400−13.9% | Reduced |
| DAFNA Capital Management LLC | 532,438 | $4.91M | 1.38% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 515,584 | $4.76M | 0.00% | −51,708−9.1% | Reduced |
| Citadel Advisors LLC | 490,838 | $4.53M | 0.01% | +405,014+471.9% | Added |
| Charles Schwab Investment Management Inc | 455,449 | $4.20M | 0.00% | +10,178+2.3% | Added |
| Nuveen Asset Management, LLC | 450,675 | $4.16M | 0.00% | +114,826+34.2% | Added |
| Bank of America Corp | 424,320 | $3.92M | 0.00% | +55,980+15.2% | Added |
| Two Sigma Advisers, LP | 396,100 | $3.66M | 0.01% | +5,400+1.4% | Added |
| Baillie Gifford & Co | 385,957 | $3.56M | 0.00% | +14,120+3.8% | Added |
| Pier Capital, LLC | 371,349 | $3.43M | 0.56% | +1630.0% | Added |
| New Leaf Venture Partners, L.L.C. | 339,569 | $3.13M | 2.27% | 00.0% | Unchanged |
| American Century Companies Inc | 332,860 | $3.07M | 0.00% | +6,089+1.9% | Added |
| Two Sigma Investments, LP | 250,487 | $2.31M | 0.01% | −28,946−10.4% | Reduced |
| Los Angeles Capital Management LLC | 248,894 | $2.30M | 0.01% | −7,200−2.8% | Reduced |
| Jacobs Levy Equity Management, Inc | 214,601 | $1.98M | 0.01% | +9,131+4.4% | Added |
| Bank of New York Mellon Corp | 211,778 | $1.95M | 0.00% | −11,773−5.3% | Reduced |
| Schroder Investment Management Group | 210,665 | $1.94M | 0.00% | +8,042+4.0% | Added |
| Rafferty Asset Management, LLC | 207,897 | $1.92M | 0.02% | +20,790+11.1% | Added |
| Man Group plc | 195,245 | $1.80M | 0.01% | +123,617+172.6% | Added |
| Ameriprise Financial Inc | 188,605 | $1.74M | 0.00% | −1,730−0.9% | Reduced |
| Panagora Asset Management Inc | 186,011 | $1.72M | 0.01% | +10,023+5.7% | Added |
| Platinum Investment Management Ltd | 181,689 | $1.68M | 0.06% | +35,849+24.6% | Added |
| AQR Capital Management LLC | 179,668 | $1.66M | 0.00% | −476,360−72.6% | Reduced |
| Alphabet Inc. | 175,866 | $1.62M | 0.09% | 00.0% | Unchanged |
| Nordea Investment Management AB | 169,867 | $1.57M | 0.00% | −10,779−6.0% | Reduced |
| UBS Group AG | 168,096 | $1.55M | 0.00% | +132,388+370.8% | Added |
| Victory Capital Management Inc | 166,686 | $1.54M | 0.00% | +155,055+1,333.1% | Added |
| Dimensional Fund Advisors LP | 165,029 | $1.52M | 0.00% | +165,029 | New |
| Deutsche Bank AG | 150,063 | $1.39M | 0.00% | +112,214+296.5% | Added |
| Newtyn Management, LLC | 145,000 | $1.34M | 0.28% | +40,000+38.1% | Added |
| Barclays PLC | 138,741 | $1.28M | 0.00% | −17,867−11.4% | Reduced |
| State of Wisconsin Investment Board | 132,598 | $1.22M | 0.00% | +51,013+62.5% | Added |
| Swiss National Bank | 129,600 | $1.20M | 0.00% | +2,700+2.1% | Added |
| Cannell Peter B & Co Inc | 113,072 | $1.04M | 0.04% | −1,000−0.9% | Reduced |
| Russell Investments Group, Ltd. | 112,309 | $1.04M | 0.00% | +27,594+32.6% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 111,888 | $1.03M | 0.01% | −219,722−66.3% | Reduced |
| Walleye Capital LLC | 109,813 | $1.01M | 0.02% | +109,813 | New |
| BNP Paribas Arbitrage, SA | 109,268 | $1.01M | 0.00% | +32,121+41.6% | Added |
| Acadian Asset Management LLC | 102,613 | $943.0K | 0.00% | −79,618−43.7% | Reduced |
| Algert Global LLC | 101,419 | $936.1K | 0.05% | +73,880+268.3% | Added |
| Citigroup Inc | 100,176 | $924.6K | 0.00% | −79,260−44.2% | Reduced |
| Candriam Luxembourg S.C.A. | 97,938 | $903.9K | 0.01% | +5,825+6.3% | Added |
| Virginia Retirement Systems Et Al | 90,700 | $837.2K | 0.01% | −100−0.1% | Reduced |
| Rhumbline Advisers | 83,302 | $769.0K | 0.00% | +4,234+5.4% | Added |
| Invesco Ltd. | 82,174 | $758.5K | 0.00% | +51,156+164.9% | Added |
| Manufacturers Life Insurance Company, The | 76,942 | $723.1K | 0.00% | −69−0.1% | Reduced |
| Massachusetts Financial Services Co | 77,597 | $716.2K | 0.00% | −38,171−33.0% | Reduced |
| Swedbank AB | 75,900 | $700.6K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 71,630 | $661.1K | 0.00% | +1,038+1.5% | Added |
| Susquehanna Fundamental Investments, LLC | 71,534 | $660.3K | 0.01% | +71,534 | New |
| Capital Impact Advisors, LLC | 68,627 | $633.4K | 0.62% | −10,711−13.5% | Reduced |
| STRS Ohio | 67,500 | $623.0K | 0.00% | −5,400−7.4% | Reduced |
| Credit Suisse AG | 62,300 | $575.0K | 0.00% | +17,398+38.7% | Added |
| Susquehanna International Group, LLP | 60,370 | $557.2K | 0.00% | −134,676−69.0% | Reduced |
| Nomura Holdings Inc | 59,599 | $548.0K | 0.01% | +59,599 | New |
| Alliancebernstein L.P. | 57,700 | $532.6K | 0.00% | −100,000−63.4% | Reduced |
| Alps Advisors Inc | 56,059 | $517.4K | 0.00% | +11,004+24.4% | Added |
| PDT Partners, LLC | 55,659 | $513.7K | 0.08% | +37,947+214.2% | Added |
| Legal & General Group Plc | 53,302 | $492.0K | 0.00% | +1,554+3.0% | Added |
| Millennium Management LLC | 50,502 | $466.0K | 0.00% | −126,069−71.4% | Reduced |
| ExodusPoint Capital Management, LP | 49,420 | $456.0K | 0.01% | −136,395−73.4% | Reduced |
| Truist Financial Corp | 48,494 | $447.6K | 0.00% | −1,985−3.9% | Reduced |
| Advisor Group Holdings, Inc. | 44,132 | $408.0K | 0.00% | −173−0.4% | Reduced |
| SEI Investments Co | 41,711 | $385.0K | 0.00% | −7,068−14.5% | Reduced |
| New York State Common Retirement Fund | 41,558 | $383.6K | 0.00% | +160.0% | Added |
| Mirae Asset Global Investments Co., Ltd. | 38,703 | $357.2K | 0.00% | +32+0.1% | Added |
| Envestnet Asset Management Inc | 33,425 | $308.5K | 0.00% | +689+2.1% | Added |
| Jupiter Asset Management Ltd | 33,122 | $305.1K | 0.00% | 00.0% | Unchanged |
| TD Asset Management Inc | 32,969 | $304.3K | 0.00% | 00.0% | Unchanged |
| Principal Financial Group Inc | 32,313 | $298.2K | 0.00% | +13,773+74.3% | Added |
| MetLife Investment Management | 31,825 | $293.7K | 0.00% | 00.0% | Unchanged |
| Wellington Management Group LLP | 30,478 | $281.3K | 0.00% | −89−0.3% | Reduced |
| Tudor Investment Corp Et Al | 29,850 | $276.0K | 0.01% | −7,029−19.1% | Reduced |
| American International Group, Inc. | 29,417 | $271.5K | 0.00% | −107−0.4% | Reduced |
| DekaBank Deutsche Girozentrale | 25,100 | $235.0K | 0.00% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 25,390 | $234.3K | 0.00% | 00.0% | Unchanged |
| Stifel Financial Corp | 25,367 | $234.1K | 0.00% | +3,100+13.9% | Added |
| Voya Investment Management LLC | 24,437 | $225.6K | 0.00% | 00.0% | Unchanged |
| HSBC Holdings PLC | 24,369 | $220.1K | 0.00% | +10,432+74.9% | Added |
| Tejara Capital Ltd | 23,697 | $218.7K | 0.13% | +23,697 | New |
| Medici Capital LLC | 23,294 | $215.0K | 0.76% | +23,294 | New |
| Cornercap Investment Counsel Inc | 22,678 | $209.3K | 0.04% | +1,811+8.7% | Added |
| Prudential Financial Inc | 20,622 | $190.3K | 0.00% | +40+0.2% | Added |