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 |
|---|---|---|---|---|---|
| BNP Paribas Arbitrage, SA | 109,268 | $1.01M | 0.00% | +32,121+41.6% | Added |
| Walleye Capital LLC | 109,813 | $1.01M | 0.02% | +109,813 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 111,888 | $1.03M | 0.01% | −219,722−66.3% | Reduced |
| Russell Investments Group, Ltd. | 112,309 | $1.04M | 0.00% | +27,594+32.6% | Added |
| Cannell Peter B & Co Inc | 113,072 | $1.04M | 0.04% | −1,000−0.9% | Reduced |
| Swiss National Bank | 129,600 | $1.20M | 0.00% | +2,700+2.1% | Added |
| State of Wisconsin Investment Board | 132,598 | $1.22M | 0.00% | +51,013+62.5% | Added |
| Barclays PLC | 138,741 | $1.28M | 0.00% | −17,867−11.4% | Reduced |
| Newtyn Management, LLC | 145,000 | $1.34M | 0.28% | +40,000+38.1% | Added |
| Deutsche Bank AG | 150,063 | $1.39M | 0.00% | +112,214+296.5% | Added |
| Dimensional Fund Advisors LP | 165,029 | $1.52M | 0.00% | +165,029 | New |
| Victory Capital Management Inc | 166,686 | $1.54M | 0.00% | +155,055+1,333.1% | Added |
| UBS Group AG | 168,096 | $1.55M | 0.00% | +132,388+370.8% | Added |
| Nordea Investment Management AB | 169,867 | $1.57M | 0.00% | −10,779−6.0% | Reduced |
| Alphabet Inc. | 175,866 | $1.62M | 0.09% | 00.0% | Unchanged |
| AQR Capital Management LLC | 179,668 | $1.66M | 0.00% | −476,360−72.6% | Reduced |
| Platinum Investment Management Ltd | 181,689 | $1.68M | 0.06% | +35,849+24.6% | Added |
| Panagora Asset Management Inc | 186,011 | $1.72M | 0.01% | +10,023+5.7% | Added |
| Ameriprise Financial Inc | 188,605 | $1.74M | 0.00% | −1,730−0.9% | Reduced |
| Man Group plc | 195,245 | $1.80M | 0.01% | +123,617+172.6% | Added |
| Rafferty Asset Management, LLC | 207,897 | $1.92M | 0.02% | +20,790+11.1% | Added |
| Schroder Investment Management Group | 210,665 | $1.94M | 0.00% | +8,042+4.0% | Added |
| Bank of New York Mellon Corp | 211,778 | $1.95M | 0.00% | −11,773−5.3% | Reduced |
| Jacobs Levy Equity Management, Inc | 214,601 | $1.98M | 0.01% | +9,131+4.4% | Added |
| Los Angeles Capital Management LLC | 248,894 | $2.30M | 0.01% | −7,200−2.8% | Reduced |
| Two Sigma Investments, LP | 250,487 | $2.31M | 0.01% | −28,946−10.4% | Reduced |
| American Century Companies Inc | 332,860 | $3.07M | 0.00% | +6,089+1.9% | Added |
| New Leaf Venture Partners, L.L.C. | 339,569 | $3.13M | 2.27% | 00.0% | Unchanged |
| Pier Capital, LLC | 371,349 | $3.43M | 0.56% | +1630.0% | Added |
| Baillie Gifford & Co | 385,957 | $3.56M | 0.00% | +14,120+3.8% | Added |
| Two Sigma Advisers, LP | 396,100 | $3.66M | 0.01% | +5,400+1.4% | Added |
| Bank of America Corp | 424,320 | $3.92M | 0.00% | +55,980+15.2% | Added |
| Nuveen Asset Management, LLC | 450,675 | $4.16M | 0.00% | +114,826+34.2% | Added |
| Charles Schwab Investment Management Inc | 455,449 | $4.20M | 0.00% | +10,178+2.3% | Added |
| Citadel Advisors LLC | 490,838 | $4.53M | 0.01% | +405,014+471.9% | Added |
| Goldman Sachs Group Inc | 515,584 | $4.76M | 0.00% | −51,708−9.1% | Reduced |
| DAFNA Capital Management LLC | 532,438 | $4.91M | 1.38% | 00.0% | Unchanged |
| Norges Bank | 572,904 | $5.29M | 0.00% | −92,400−13.9% | Reduced |
| Northern Trust Corp | 587,647 | $5.42M | 0.00% | −6,160−1.0% | Reduced |
| Renaissance Technologies LLC | 591,812 | $5.46M | 0.01% | −128,771−17.9% | Reduced |
| Morgan Stanley | 594,960 | $5.49M | 0.00% | +23,277+4.1% | Added |
| Baker Bros. Advisors LP | 681,991 | $6.29M | 0.04% | +442,763+185.1% | Added |
| Braidwell LP | 725,024 | $6.69M | 0.22% | +725,024 | New |
| Euclidean Capital LLC | 980,894 | $9.05M | 8.47% | 00.0% | Unchanged |
| Deerfield Management Company, L.P. (Series C) | 1,055,192 | $9.74M | 0.20% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 1,192,289 | $11.0M | 0.00% | +73,761+6.6% | Added |
| Franklin Resources Inc | 1,593,501 | $14.7M | 0.01% | −4,953−0.3% | Reduced |
| Price T Rowe Associates Inc | 1,728,713 | $16.0M | 0.00% | −14,678−0.8% | Reduced |
| JPMorgan Chase & Co | 2,420,294 | $22.3M | 0.00% | +36,203+1.5% | Added |
| State Street Corp | 3,229,517 | $29.8M | 0.00% | −64,080−1.9% | Reduced |
| EcoR1 Capital, LLC | 4,056,548 | $37.4M | 1.14% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 4,571,660 | $42.2M | 0.12% | −1,084,941−19.2% | Reduced |
| FMR LLC | 4,711,940 | $43.5M | 0.00% | −12,244−0.3% | Reduced |
| Vanguard Group Inc | 6,364,611 | $58.7M | 0.00% | +611,417+10.6% | Added |
| BlackRock Inc. | 7,368,620 | $68.0M | 0.00% | +1,365,044+22.7% | Added |
| Rubric Capital Management LP | 0 | $0 | 0.00% | −900,000−100.0% | Sold out |
| AlphaCrest Capital Management LLC | 0 | $0 | 0.00% | −154,590−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −109,200−100.0% | Sold out |
| Putnam Investments LLC | 0 | $0 | 0.00% | −106,986−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −105,590−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −103,693−100.0% | Sold out |
| Tang Capital Management LLC | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| Nantahala Capital Management, LLC | 0 | $0 | 0.00% | −85,514−100.0% | Sold out |
| UBS Asset Management Americas Inc | 0 | $0 | 0.00% | −69,376−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −62,368−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −45,580−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −40,404−100.0% | Sold out |
| TrimTabs Asset Management, LLC | 0 | $0 | 0.00% | −38,308−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −35,311−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −34,223−100.0% | Sold out |
| Gilder Gagnon Howe & Co LLC | 0 | $0 | 0.00% | −24,703−100.0% | Sold out |
| Robeco Institutional Asset Management B.V. | 0 | $0 | 0.00% | −22,341−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −18,162−100.0% | Sold out |
| Diversified Trust Co | 0 | $0 | 0.00% | −16,818−100.0% | Sold out |
| Ensign Peak Advisors, Inc | 0 | $0 | 0.00% | −15,190−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −14,351−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −13,995−100.0% | Sold out |
| Point72 Hong Kong Ltd | 0 | $0 | 0.00% | −6,847−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −4,781−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −2,600−100.0% | Sold out |
| Macquarie Group Ltd | 0 | $0 | 0.00% | −457−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −1,298−100.0% | Sold out |
| Cutler Group LP | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Nisa Investment Advisors, LLC | 0 | $0 | 0.00% | −63−100.0% | Sold out |
| FourThought Financial, LLC | – | – | – | – | Not filed |