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 2021
Institutional positions in Alector, Inc. as of Jun 30, 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
- 138
- +11 vs. Q1 2021
- Shares held
- 49.2M
- +2.86M (+6.2%) vs. Q1 2021
- Total value
- $1.02B
- +$92.9M (+10.0%) vs. Q1 2021
- New holders
- 28
- 49 more added
- Sold out
- 17
- 31 more reduced
Compare with Q1 2021: 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 2021
Shares, value and share of portfolio for each institution holding Alector, Inc.; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 5,185,764 | $108.0M | 0.00% | −97,745−1.9% | Reduced |
| Vanguard Group Inc | 4,931,320 | $102.7M | 0.00% | −238,219−4.6% | Reduced |
| Federated Hermes, Inc. | 4,541,799 | $94.6M | 0.18% | −100,000−2.2% | Reduced |
| EcoR1 Capital, LLC | 4,242,634 | $88.4M | 3.32% | +3,640,034+604.1% | Added |
| FMR LLC | 4,092,092 | $85.2M | 0.01% | +334,300+8.9% | Added |
| Franklin Resources Inc | 3,323,265 | $69.2M | 0.03% | +65,157+2.0% | Added |
| State Street Corp | 2,741,330 | $57.1M | 0.00% | +28,234+1.0% | Added |
| JPMorgan Chase & Co | 2,645,842 | $55.1M | 0.01% | +28,444+1.1% | Added |
| Price T Rowe Associates Inc | 2,621,813 | $54.6M | 0.01% | −71,761−2.7% | Reduced |
| Casdin Capital, LLC | 1,650,000 | $34.4M | 0.87% | 00.0% | Unchanged |
| Deerfield Management Company, L.P. (Series C) | 1,055,192 | $22.0M | 0.39% | 00.0% | Unchanged |
| Euclidean Capital LLC | 980,894 | $20.4M | 6.63% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 980,607 | $20.4M | 0.00% | +131,612+15.5% | Added |
| Gilder Gagnon Howe & Co LLC | 871,959 | $18.2M | 0.09% | −960,731−52.4% | Reduced |
| Ikarian Capital, LLC | 674,723 | $14.1M | 2.51% | +417,223+162.0% | Added |
| Northern Trust Corp | 616,848 | $12.8M | 0.00% | +67,404+12.3% | Added |
| OrbiMed Advisors LLC | 611,478 | $12.7M | 0.13% | 00.0% | Unchanged |
| Morgan Stanley | 603,561 | $12.6M | 0.00% | −344,903−36.4% | Reduced |
| Goldman Sachs Group Inc | 526,369 | $11.0M | 0.00% | −182,512−25.7% | Reduced |
| Charles Schwab Investment Management Inc | 374,193 | $7.79M | 0.00% | +28,557+8.3% | Added |
| New Leaf Venture Partners, L.L.C. | 339,569 | $7.07M | 2.32% | 00.0% | Unchanged |
| Pier Capital, LLC | 336,914 | $7.02M | 0.70% | −168,489−33.3% | Reduced |
| Baillie Gifford & Co | 300,828 | $6.27M | 0.00% | +38,615+14.7% | Added |
| Citadel Advisors LLC | 294,897 | $6.14M | 0.01% | +253,608+614.2% | Added |
| Baker Bros. Advisors LP | 239,228 | $4.98M | 0.02% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 232,240 | $4.84M | 0.00% | +23,580+11.3% | Added |
| Norges Bank | 224,973 | $4.69M | 0.00% | +16,979+8.2% | Added |
| Bridger Management, LLC | 203,900 | $4.25M | 0.40% | +203,900 | New |
| Alphabet Inc. | 175,866 | $3.66M | 0.07% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 168,346 | $3.51M | 0.00% | −13,965−7.7% | Reduced |
| Citigroup Inc | 151,244 | $3.15M | 0.00% | −5,397−3.4% | Reduced |
| Schroder Investment Management Group | 148,711 | $3.10M | 0.00% | +148,711 | New |
| Cannell Peter B & Co Inc | 144,122 | $3.00M | 0.09% | −200−0.1% | Reduced |
| Bank of America Corp | 127,775 | $2.66M | 0.00% | +2,518+2.0% | Added |
| Deutsche Bank AG | 122,037 | $2.54M | 0.00% | +72,788+147.8% | Added |
| Swiss National Bank | 114,000 | $2.38M | 0.00% | +14,400+14.5% | Added |
| Two Sigma Advisers, LP | 113,500 | $2.36M | 0.01% | −207,300−64.6% | Reduced |
| Susquehanna International Group, LLP | 112,916 | $2.35M | 0.00% | +33,002+41.3% | Added |
| Voloridge Investment Management, LLC | 107,297 | $2.23M | 0.02% | +107,297 | New |
| Alps Advisors Inc | 104,259 | $2.17M | 0.02% | −39,110−27.3% | Reduced |
| Rafferty Asset Management, LLC | 95,054 | $1.98M | 0.01% | −29,741−23.8% | Reduced |
| PDT Partners, LLC | 92,500 | $1.93M | 0.13% | −569−0.6% | Reduced |
| Platinum Investment Management Ltd | 79,884 | $1.66M | 0.04% | +23,644+42.0% | Added |
| California State Teachers Retirement System | 79,421 | $1.65M | 0.00% | +9,620+13.8% | Added |
| Boothbay Fund Management, LLC | 77,811 | $1.62M | 0.07% | +46,791+150.8% | Added |
| Dimensional Fund Advisors LP | 76,070 | $1.58M | 0.00% | −197,015−72.1% | Reduced |
| TD Asset Management Inc | 59,857 | $1.44M | 0.00% | −4,400−6.8% | Reduced |
| State of Wisconsin Investment Board | 62,300 | $1.30M | 0.00% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 61,039 | $1.27M | 0.00% | +10,692+21.2% | Added |
| Alkeon Capital Management LLC | 60,000 | $1.25M | 0.00% | 00.0% | Unchanged |
| Millennium Management LLC | 59,138 | $1.23M | 0.00% | +38,185+182.2% | Added |
| First Trust Advisors LP | 58,304 | $1.21M | 0.00% | +58,304 | New |
| Rhumbline Advisers | 58,077 | $1.21M | 0.00% | +2,246+4.0% | Added |
| Barclays PLC | 57,213 | $1.19M | 0.00% | −42,907−42.9% | Reduced |
| Alliancebernstein L.P. | 56,800 | $1.18M | 0.00% | +6,800+13.6% | Added |
| Ameriprise Financial Inc | 56,158 | $1.17M | 0.00% | +5,306+10.4% | Added |
| Jane Street Group, LLC | 53,789 | $1.12M | 0.00% | +20,192+60.1% | Added |
| New York State Common Retirement Fund | 49,793 | $1.04M | 0.00% | +7,393+17.4% | Added |
| Legal & General Group Plc | 45,422 | $947.0K | 0.00% | +16,916+59.3% | Added |
| Parametric Portfolio Associates LLC | 39,034 | $813.0K | 0.00% | +6,351+19.4% | Added |
| Belvedere Trading LLC | 24,711 | $804.0K | 0.34% | +24,711 | New |
| D. E. Shaw & Co., Inc. | 38,077 | $793.0K | 0.00% | +38,077 | New |
| Integral Health Asset Management, LLC | 35,000 | $729.0K | 0.20% | −20,000−36.4% | Reduced |
| Credit Suisse AG | 34,250 | $713.0K | 0.00% | +6,244+22.3% | Added |
| Manufacturers Life Insurance Company, The | 33,604 | $700.0K | 0.00% | +5,980+21.6% | Added |
| American International Group, Inc. | 32,280 | $672.0K | 0.00% | +5,301+19.6% | Added |
| Vontobel Holding Ltd. | 30,000 | $625.0K | 0.01% | 00.0% | Unchanged |
| ProShare Advisors LLC | 29,277 | $610.0K | 0.00% | +5,896+25.2% | Added |
| Gsa Capital Partners LLP | 27,027 | $563.0K | 0.06% | +27,027 | New |
| State Board of Administration of Florida Retirement System | 26,256 | $547.0K | 0.00% | +6,615+33.7% | Added |
| Invesco Ltd. | 24,224 | $504.0K | 0.00% | +12,157+100.7% | Added |
| Oppenheimer & Co Inc | 24,100 | $502.0K | 0.01% | −31,610−56.7% | Reduced |
| Schonfeld Strategic Advisors LLC | 23,900 | $497.0K | 0.01% | +23,900 | New |
| Truist Financial Corp | 23,306 | $485.0K | 0.00% | +9,750+71.9% | Added |
| Voya Investment Management LLC | 22,788 | $475.0K | 0.00% | +2,260+11.0% | Added |
| First Manhattan Co | 22,610 | $470.0K | 0.00% | +22,610 | New |
| DekaBank Deutsche Girozentrale | 22,200 | $453.0K | 0.00% | 00.0% | Unchanged |
| Stifel Financial Corp | 21,680 | $451.0K | 0.00% | +3,540+19.5% | Added |
| IndexIQ Advisors LLC | 20,088 | $418.0K | 0.01% | −2,821−12.3% | Reduced |
| BNP Paribas Arbitrage, SA | 19,787 | $412.2K | 0.00% | −3,465−14.9% | Reduced |
| MetLife Investment Management | 18,717 | $389.9K | 0.00% | 00.0% | Unchanged |
| Blueshift Asset Management, LLC | 18,675 | $389.0K | 0.02% | +18,675 | New |
| Thrivent Financial for Lutherans | 18,587 | $387.0K | 0.00% | +18,587 | New |
| Principal Financial Group Inc | 18,373 | $383.0K | 0.00% | +762+4.3% | Added |
| Handelsbanken Fonder AB | 16,800 | $350.0K | 0.00% | +16,800 | New |
| UBS Group AG | 15,233 | $318.0K | 0.00% | −47,130−75.6% | Reduced |
| Metropolitan Life Insurance Co | 15,133 | $315.2K | 0.00% | +2,088+16.0% | Added |
| Verition Fund Management LLC | 14,923 | $311.0K | 0.00% | −37,835−71.7% | Reduced |
| Cubist Systematic Strategies, LLC | 14,954 | $311.0K | 0.00% | +14,954 | New |
| Arizona State Retirement System | 14,062 | $293.0K | 0.00% | +1,375+10.8% | Added |
| Simplex Trading, LLC | 13,821 | $287.0K | 0.01% | +10,197+281.4% | Added |
| Tudor Investment Corp Et Al | 11,445 | $238.0K | 0.00% | +11,445 | New |
| Amalgamated Bank | 10,879 | $227.0K | 0.00% | +10,879 | New |
| EPIQ Capital Group, LLC | 10,687 | $223.0K | 0.02% | 00.0% | Unchanged |
| Virtus ETF Advisers LLC | 10,556 | $220.0K | 0.09% | −9,361−47.0% | Reduced |
| Vident Investment Advisory, LLC | 10,124 | $211.0K | 0.01% | +10,124 | New |
| Trexquant Investment LP | 9,901 | $206.0K | 0.02% | +9,901 | New |
| Mirae Asset Global Investments Co., Ltd. | 9,638 | $201.0K | 0.00% | +9,638 | New |
| Tower Research Capital LLC (TRC) | 8,398 | $175.0K | 0.00% | +6,259+292.6% | Added |
| Public Employees Retirement Association of Colorado | 7,914 | $165.0K | 0.00% | 00.0% | Unchanged |