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 |
|---|---|---|---|---|---|
| State of Wyoming | 21 | $0 | 0.00% | −163−88.6% | Reduced |
| Parallel Advisors, LLC | 10 | $0 | 0.00% | 00.0% | Unchanged |
| Solstein Capital, LLC | 18 | $0 | 0.00% | +18 | New |
| Dark Forest Capital Management LP | 7 | $0 | 0.00% | +7 | New |
| Investors Research Corp | 40 | $1.00K | 0.00% | 00.0% | Unchanged |
| HighMark Wealth Management LLC | 50 | $1.00K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 56 | $1.00K | 0.00% | +56 | New |
| Salem Investment Counselors Inc | 50 | $1.00K | 0.00% | +50 | New |
| Brewin Dolphin Ltd | 91 | $1.90K | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 108 | $2.00K | 0.00% | 00.0% | Unchanged |
| Bellevue Asset Management, LLC | 78 | $2.00K | 0.00% | −10−11.4% | Reduced |
| Daiwa Securities Group Inc. | 149 | $3.00K | 0.00% | 00.0% | Unchanged |
| TCI Wealth Advisors, Inc. | 142 | $3.00K | 0.00% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 124 | $3.00K | 0.00% | +124 | New |
| Harbour Investments, Inc. | 205 | $4.00K | 0.00% | 00.0% | Unchanged |
| Aspire Private Capital, LLC | 200 | $4.00K | 0.00% | +200 | New |
| Exane Derivatives | 117 | $4.37K | 0.00% | +117 | New |
| Captrust Financial Advisors | 265 | $6.00K | 0.00% | +165+165.0% | Added |
| Federation des caisses Desjardins du Quebec | 415 | $8.64K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 500 | $10.0K | 0.00% | 00.0% | Unchanged |
| Bamco Inc | 700 | $15.0K | 0.00% | −23,102−97.1% | Reduced |
| Mark Sheptoff Financial Planning, LLC | 900 | $19.0K | 0.01% | 00.0% | Unchanged |
| Point72 Hong Kong Ltd | 1,253 | $26.0K | 0.00% | +1,253 | New |
| Macquarie Group Ltd | 1,405 | $29.0K | 0.00% | 00.0% | Unchanged |
| FourThought Financial, LLC | 1,521 | $31.0K | 0.00% | −10−0.7% | Reduced |
| Cutler Group LP | 1,700 | $35.0K | 0.00% | 00.0% | Unchanged |
| Penserra Capital Management LLC | 1,815 | $37.0K | 0.00% | +15+0.8% | Added |
| US Bancorp | 1,968 | $41.0K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 2,000 | $41.0K | 0.00% | +700+53.8% | Added |
| Nisa Investment Advisors, LLC | 2,450 | $51.0K | 0.00% | +2,450 | New |
| Great West Life Assurance Co | 2,855 | $59.0K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 2,917 | $60.0K | 0.00% | −2,842−49.3% | Reduced |
| Advisor Group Holdings, Inc. | 2,970 | $62.0K | 0.00% | −8,535−74.2% | Reduced |
| Meeder Asset Management Inc | 3,854 | $80.0K | 0.00% | +3,854 | New |
| Ameritas Investment Partners, Inc. | 4,559 | $95.0K | 0.00% | +470+11.5% | Added |
| Royal Bank of Canada | 5,266 | $110.0K | 0.00% | +1,860+54.6% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 5,374 | $112.0K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 6,851 | $143.0K | 0.00% | +4,197+158.1% | Added |
| Public Employees Retirement Association of Colorado | 7,914 | $165.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 8,398 | $175.0K | 0.00% | +6,259+292.6% | Added |
| Mirae Asset Global Investments Co., Ltd. | 9,638 | $201.0K | 0.00% | +9,638 | New |
| Trexquant Investment LP | 9,901 | $206.0K | 0.02% | +9,901 | New |
| Vident Investment Advisory, LLC | 10,124 | $211.0K | 0.01% | +10,124 | New |
| Virtus ETF Advisers LLC | 10,556 | $220.0K | 0.09% | −9,361−47.0% | Reduced |
| EPIQ Capital Group, LLC | 10,687 | $223.0K | 0.02% | 00.0% | Unchanged |
| Amalgamated Bank | 10,879 | $227.0K | 0.00% | +10,879 | New |
| Tudor Investment Corp Et Al | 11,445 | $238.0K | 0.00% | +11,445 | New |
| Simplex Trading, LLC | 13,821 | $287.0K | 0.01% | +10,197+281.4% | Added |
| Arizona State Retirement System | 14,062 | $293.0K | 0.00% | +1,375+10.8% | 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 |
| Metropolitan Life Insurance Co | 15,133 | $315.2K | 0.00% | +2,088+16.0% | Added |
| UBS Group AG | 15,233 | $318.0K | 0.00% | −47,130−75.6% | Reduced |
| Handelsbanken Fonder AB | 16,800 | $350.0K | 0.00% | +16,800 | New |
| Principal Financial Group Inc | 18,373 | $383.0K | 0.00% | +762+4.3% | Added |
| Thrivent Financial for Lutherans | 18,587 | $387.0K | 0.00% | +18,587 | New |
| Blueshift Asset Management, LLC | 18,675 | $389.0K | 0.02% | +18,675 | New |
| MetLife Investment Management | 18,717 | $389.9K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 19,787 | $412.2K | 0.00% | −3,465−14.9% | Reduced |
| IndexIQ Advisors LLC | 20,088 | $418.0K | 0.01% | −2,821−12.3% | Reduced |
| Stifel Financial Corp | 21,680 | $451.0K | 0.00% | +3,540+19.5% | Added |
| DekaBank Deutsche Girozentrale | 22,200 | $453.0K | 0.00% | 00.0% | Unchanged |
| First Manhattan Co | 22,610 | $470.0K | 0.00% | +22,610 | New |
| Voya Investment Management LLC | 22,788 | $475.0K | 0.00% | +2,260+11.0% | Added |
| Truist Financial Corp | 23,306 | $485.0K | 0.00% | +9,750+71.9% | Added |
| Schonfeld Strategic Advisors LLC | 23,900 | $497.0K | 0.01% | +23,900 | New |
| Oppenheimer & Co Inc | 24,100 | $502.0K | 0.01% | −31,610−56.7% | Reduced |
| Invesco Ltd. | 24,224 | $504.0K | 0.00% | +12,157+100.7% | Added |
| State Board of Administration of Florida Retirement System | 26,256 | $547.0K | 0.00% | +6,615+33.7% | Added |
| Gsa Capital Partners LLP | 27,027 | $563.0K | 0.06% | +27,027 | New |
| ProShare Advisors LLC | 29,277 | $610.0K | 0.00% | +5,896+25.2% | Added |
| Vontobel Holding Ltd. | 30,000 | $625.0K | 0.01% | 00.0% | Unchanged |
| American International Group, Inc. | 32,280 | $672.0K | 0.00% | +5,301+19.6% | Added |
| Manufacturers Life Insurance Company, The | 33,604 | $700.0K | 0.00% | +5,980+21.6% | Added |
| Credit Suisse AG | 34,250 | $713.0K | 0.00% | +6,244+22.3% | Added |
| Integral Health Asset Management, LLC | 35,000 | $729.0K | 0.20% | −20,000−36.4% | Reduced |
| D. E. Shaw & Co., Inc. | 38,077 | $793.0K | 0.00% | +38,077 | New |
| Belvedere Trading LLC | 24,711 | $804.0K | 0.34% | +24,711 | New |
| Parametric Portfolio Associates LLC | 39,034 | $813.0K | 0.00% | +6,351+19.4% | Added |
| Legal & General Group Plc | 45,422 | $947.0K | 0.00% | +16,916+59.3% | Added |
| New York State Common Retirement Fund | 49,793 | $1.04M | 0.00% | +7,393+17.4% | Added |
| Jane Street Group, LLC | 53,789 | $1.12M | 0.00% | +20,192+60.1% | Added |
| Ameriprise Financial Inc | 56,158 | $1.17M | 0.00% | +5,306+10.4% | Added |
| Alliancebernstein L.P. | 56,800 | $1.18M | 0.00% | +6,800+13.6% | Added |
| Barclays PLC | 57,213 | $1.19M | 0.00% | −42,907−42.9% | Reduced |
| Rhumbline Advisers | 58,077 | $1.21M | 0.00% | +2,246+4.0% | Added |
| First Trust Advisors LP | 58,304 | $1.21M | 0.00% | +58,304 | New |
| Millennium Management LLC | 59,138 | $1.23M | 0.00% | +38,185+182.2% | Added |
| Alkeon Capital Management LLC | 60,000 | $1.25M | 0.00% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 61,039 | $1.27M | 0.00% | +10,692+21.2% | Added |
| State of Wisconsin Investment Board | 62,300 | $1.30M | 0.00% | 00.0% | Unchanged |
| TD Asset Management Inc | 59,857 | $1.44M | 0.00% | −4,400−6.8% | Reduced |
| Dimensional Fund Advisors LP | 76,070 | $1.58M | 0.00% | −197,015−72.1% | Reduced |
| Boothbay Fund Management, LLC | 77,811 | $1.62M | 0.07% | +46,791+150.8% | Added |
| California State Teachers Retirement System | 79,421 | $1.65M | 0.00% | +9,620+13.8% | Added |
| Platinum Investment Management Ltd | 79,884 | $1.66M | 0.04% | +23,644+42.0% | Added |
| PDT Partners, LLC | 92,500 | $1.93M | 0.13% | −569−0.6% | Reduced |
| Rafferty Asset Management, LLC | 95,054 | $1.98M | 0.01% | −29,741−23.8% | Reduced |
| Alps Advisors Inc | 104,259 | $2.17M | 0.02% | −39,110−27.3% | Reduced |
| Voloridge Investment Management, LLC | 107,297 | $2.23M | 0.02% | +107,297 | New |