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, Q2 2022
Institutional positions in Alector, Inc. as of Jun 30, 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
- 154
- −9 vs. Q1 2022
- Shares held
- 53.8M
- −1.57M (−2.8%) vs. Q1 2022
- Total value
- $546.8M
- −$242.6M (−30.7%) vs. Q1 2022
- New holders
- 12
- 57 more added
- Sold out
- 21
- 47 more reduced
3 institutions that held it in Q1 2022 haven't filed for Q2 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2022
Shares, value and share of portfolio for each institution holding Alector, Inc.; share changes are against Q1 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | 77,514 | $790.1K | 0.00% | +16,889+27.9% | Added |
| UBS Group AG | 82,208 | $835.0K | 0.00% | −139,580−62.9% | Reduced |
| Cubist Systematic Strategies, LLC | 89,445 | $909.0K | 0.01% | −32,305−26.5% | Reduced |
| Nantahala Capital Management, LLC | 92,176 | $937.0K | 0.08% | −2,603−2.7% | Reduced |
| Acadian Asset Management LLC | 96,977 | $985.0K | 0.01% | +63,322+188.2% | Added |
| Tang Capital Management LLC | 100,000 | $1.02M | 0.15% | 00.0% | Unchanged |
| Alkeon Capital Management LLC | 100,000 | $1.02M | 0.01% | +100,000 | New |
| Newtyn Management, LLC | 105,000 | $1.07M | 0.20% | +105,000 | New |
| Platinum Investment Management Ltd | 105,614 | $1.07M | 0.04% | 00.0% | Unchanged |
| Putnam Investments LLC | 108,923 | $1.11M | 0.00% | −1,338−1.2% | Reduced |
| Raymond James & Associates | 112,859 | $1.15M | 0.00% | +35,259+45.4% | Added |
| Citadel Advisors LLC | 121,877 | $1.24M | 0.00% | +16,934+16.1% | Added |
| Swiss National Bank | 124,900 | $1.27M | 0.00% | 00.0% | Unchanged |
| Cannell Peter B & Co Inc | 134,272 | $1.36M | 0.05% | 00.0% | Unchanged |
| Gilder Gagnon Howe & Co LLC | 139,393 | $1.42M | 0.03% | −44,879−24.4% | Reduced |
| American Century Companies Inc | 142,283 | $1.45M | 0.00% | +1,396+1.0% | Added |
| Rafferty Asset Management, LLC | 142,818 | $1.45M | 0.01% | −85,086−37.3% | Reduced |
| Citigroup Inc | 154,773 | $1.57M | 0.00% | +109,786+244.0% | Added |
| Alphabet Inc. | 175,866 | $1.79M | 0.10% | 00.0% | Unchanged |
| Nordea Investment Management AB | 182,892 | $1.81M | 0.00% | +5,399+3.0% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 182,686 | $1.86M | 0.01% | +86,076+89.1% | Added |
| Bank of New York Mellon Corp | 204,218 | $2.08M | 0.00% | −2,478−1.2% | Reduced |
| Bank of America Corp | 229,977 | $2.34M | 0.00% | −102,675−30.9% | Reduced |
| Baker Bros. Advisors LP | 239,228 | $2.43M | 0.01% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 261,226 | $2.65M | 0.01% | −19,589−7.0% | Reduced |
| Pier Capital, LLC | 275,629 | $2.80M | 0.48% | −2,989−1.1% | Reduced |
| Nuveen Asset Management, LLC | 277,141 | $2.82M | 0.00% | +7,643+2.8% | Added |
| Schroder Investment Management Group | 325,573 | $3.32M | 0.01% | −144,464−30.7% | Reduced |
| New Leaf Venture Partners, L.L.C. | 339,569 | $3.45M | 2.23% | 00.0% | Unchanged |
| AQR Capital Management LLC | 352,531 | $3.58M | 0.01% | +186,243+112.0% | Added |
| Baillie Gifford & Co | 354,492 | $3.60M | 0.00% | −37,859−9.6% | Reduced |
| Two Sigma Advisers, LP | 411,300 | $4.18M | 0.01% | +141,000+52.2% | Added |
| Goldman Sachs Group Inc | 419,517 | $4.26M | 0.00% | +178,374+74.0% | Added |
| Charles Schwab Investment Management Inc | 428,008 | $4.35M | 0.00% | +5,312+1.3% | Added |
| DAFNA Capital Management LLC | 552,438 | $5.61M | 1.53% | +259,691+88.7% | Added |
| Northern Trust Corp | 595,993 | $6.05M | 0.00% | +11,519+2.0% | Added |
| Millennium Management LLC | 614,744 | $6.25M | 0.01% | −525,345−46.1% | Reduced |
| Marshall Wace, LLP | 629,852 | $6.40M | 0.01% | +118,712+23.2% | Added |
| Norges Bank | 635,156 | $6.45M | 0.00% | +109,200+20.8% | Added |
| Morgan Stanley | 813,872 | $8.27M | 0.00% | +197,256+32.0% | Added |
| Rubric Capital Management LP | 900,000 | $9.14M | 0.48% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 966,583 | $9.82M | 0.01% | +260,803+37.0% | Added |
| Euclidean Capital LLC | 980,894 | $9.97M | 8.48% | 00.0% | Unchanged |
| Deerfield Management Company, L.P. (Series C) | 1,055,192 | $10.7M | 0.23% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 1,094,057 | $11.1M | 0.00% | +17,768+1.7% | Added |
| Price T Rowe Associates Inc | 1,848,125 | $18.8M | 0.00% | −42,783−2.3% | Reduced |
| Franklin Resources Inc | 1,887,790 | $19.2M | 0.01% | −336,235−15.1% | Reduced |
| JPMorgan Chase & Co | 2,474,889 | $25.1M | 0.00% | +19,322+0.8% | Added |
| State Street Corp | 3,914,336 | $39.8M | 0.00% | +78,243+2.0% | Added |
| EcoR1 Capital, LLC | 4,056,548 | $41.2M | 1.43% | −1,681,900−29.3% | Reduced |
| FMR LLC | 4,699,589 | $47.7M | 0.00% | +44,511+1.0% | Added |
| Vanguard Group Inc | 5,708,696 | $58.0M | 0.00% | +264,773+4.9% | Added |
| Federated Hermes, Inc. | 5,746,830 | $58.4M | 0.16% | −184,204−3.1% | Reduced |
| BlackRock Inc. | 5,824,659 | $59.2M | 0.00% | +454,674+8.5% | Added |
| First Trust Advisors LP | 0 | $0 | 0.00% | −117,381−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −48,673−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −37,831−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −35,336−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −31,931−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −18,507−100.0% | Sold out |
| Quantedge Capital Pte Ltd | 0 | $0 | 0.00% | −16,200−100.0% | Sold out |
| Corton Capital Inc. | 0 | $0 | 0.00% | −15,873−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −12,984−100.0% | Sold out |
| Delphia (USA) Inc. | 0 | $0 | 0.00% | −11,031−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −10,911−100.0% | Sold out |
| D.A. Davidson & Co. | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Point72 Hong Kong Ltd | 0 | $0 | 0.00% | −9,635−100.0% | Sold out |
| Exane Derivatives | 0 | $0 | 0.00% | −4,594−100.0% | Sold out |
| Amundi | 0 | $0 | 0.00% | −3,892−100.0% | Sold out |
| Annapolis Financial Services, LLC | 0 | $0 | 0.00% | −205−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −108−100.0% | Sold out |
| Prospera Financial Services Inc | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Fortitude Advisory Group L.L.C. | 0 | $0 | 0.00% | −76−100.0% | Sold out |
| Solstein Capital, LLC | 0 | $0 | 0.00% | −18−100.0% | Sold out |
| Parametric Portfolio Associates LLC | – | – | – | – | Not filed |
| Amalgamated Financial Corp. | – | – | – | – | Not filed |
| Nauset Wealth Management. LLC | – | – | – | – | Not filed |