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, Q3 2023
Institutional positions in Alector, Inc. as of Sep 30, 2023. 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
- 149
- +4 vs. Q2 2023
- Shares held
- 62.1M
- +3.07M (+5.2%) vs. Q2 2023
- Total value
- $402.6M
- +$48.1M (+13.6%) vs. Q2 2023
- New holders
- 20
- 59 more added
- Sold out
- 16
- 40 more reduced
Compare with Q2 2023: 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, Q3 2023
Shares, value and share of portfolio for each institution holding Alector, Inc.; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 12,172,045 | $78.9M | 0.01% | +4,481,420+58.3% | Added |
| BlackRock Inc. | 7,730,978 | $50.1M | 0.00% | −94,575−1.2% | Reduced |
| Vanguard Group Inc | 5,520,908 | $35.8M | 0.00% | −1,107,318−16.7% | Reduced |
| Braidwell LP | 4,074,120 | $26.4M | 0.83% | −57,195−1.4% | Reduced |
| EcoR1 Capital, LLC | 4,056,548 | $26.3M | 0.90% | 00.0% | Unchanged |
| Morgan Stanley | 3,337,386 | $21.6M | 0.00% | +1,605,293+92.7% | Added |
| State Street Corp | 2,836,707 | $18.4M | 0.00% | +117,560+4.3% | Added |
| JPMorgan Chase & Co | 2,288,369 | $14.8M | 0.00% | −105,695−4.4% | Reduced |
| Euclidean Capital LLC | 1,307,858 | $8.47M | 1.85% | +326,964+33.3% | Added |
| Geode Capital Management, LLC | 1,303,077 | $8.44M | 0.00% | +13,355+1.0% | Added |
| Price T Rowe Associates Inc | 1,146,967 | $7.43M | 0.00% | +482,077+72.5% | Added |
| Deerfield Management Company, L.P. (Series C) | 1,055,192 | $6.84M | 0.15% | 00.0% | Unchanged |
| Baker Bros. Advisors LP | 964,851 | $6.25M | 0.04% | 00.0% | Unchanged |
| Franklin Resources Inc | 959,162 | $6.22M | 0.00% | −652,262−40.5% | Reduced |
| Jacobs Levy Equity Management, Inc | 778,077 | $5.04M | 0.03% | +195,411+33.5% | Added |
| Point72 Asset Management, L.P. | 738,782 | $4.79M | 0.02% | −992,366−57.3% | Reduced |
| Dimensional Fund Advisors LP | 681,225 | $4.42M | 0.00% | +128,401+23.2% | Added |
| Northern Trust Corp | 636,065 | $4.12M | 0.00% | +20,198+3.3% | Added |
| DAFNA Capital Management LLC | 628,938 | $4.08M | 1.27% | −10,000−1.6% | Reduced |
| Renaissance Technologies LLC | 502,203 | $3.25M | 0.01% | −184,880−26.9% | Reduced |
| Charles Schwab Investment Management Inc | 482,222 | $3.12M | 0.00% | +12,569+2.7% | Added |
| Nuveen Asset Management, LLC | 431,546 | $2.80M | 0.00% | +1,507+0.4% | Added |
| Bank of America Corp | 424,613 | $2.75M | 0.00% | +69,448+19.6% | Added |
| Two Sigma Advisers, LP | 389,000 | $2.52M | 0.01% | −55,900−12.6% | Reduced |
| Baillie Gifford & Co | 367,972 | $2.38M | 0.00% | −17,092−4.4% | Reduced |
| Millennium Management LLC | 356,765 | $2.31M | 0.00% | +296,300+490.0% | Added |
| New Leaf Venture Partners, L.L.C. | 339,569 | $2.20M | 2.83% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 329,621 | $2.14M | 0.00% | +134,931+69.3% | Added |
| Panagora Asset Management Inc | 293,534 | $1.90M | 0.01% | +51,440+21.2% | Added |
| Goldman Sachs Group Inc | 248,219 | $1.61M | 0.00% | −58,271−19.0% | Reduced |
| Jupiter Asset Management Ltd | 232,219 | $1.50M | 0.02% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 231,995 | $1.50M | 0.00% | −2,776−1.2% | Reduced |
| Nordea Investment Management AB | 202,707 | $1.34M | 0.00% | +690.0% | Added |
| HRT Financial LP | 193,294 | $1.25M | 0.01% | +193,294 | New |
| Rafferty Asset Management, LLC | 186,624 | $1.21M | 0.01% | +20,328+12.2% | Added |
| Alphabet Inc. | 175,866 | $1.14M | 0.07% | 00.0% | Unchanged |
| Los Angeles Capital Management LLC | 170,198 | $1.10M | 0.00% | +170,198 | New |
| Verition Fund Management LLC | 167,004 | $1.08M | 0.01% | +167,004 | New |
| Federated Hermes, Inc. | 155,656 | $1.01M | 0.00% | −332,078−68.1% | Reduced |
| Acadian Asset Management LLC | 153,266 | $993.0K | 0.00% | +62,155+68.2% | Added |
| State of Wisconsin Investment Board | 147,744 | $957.4K | 0.00% | +3,611+2.5% | Added |
| Barclays PLC | 138,826 | $899.6K | 0.00% | +26,856+24.0% | Added |
| Swiss National Bank | 135,600 | $878.7K | 0.00% | 00.0% | Unchanged |
| Victory Capital Management Inc | 134,718 | $873.0K | 0.00% | −14,765−9.9% | Reduced |
| Russell Investments Group, Ltd. | 120,120 | $778.4K | 0.00% | +20,105+20.1% | Added |
| TD Asset Management Inc | 119,138 | $772.0K | 0.00% | +107,869+957.2% | Added |
| D. E. Shaw & Co., Inc. | 119,018 | $771.2K | 0.00% | +100,823+554.1% | Added |
| Two Sigma Investments, LP | 102,431 | $663.8K | 0.00% | −185,285−64.4% | Reduced |
| DekaBank Deutsche Girozentrale | 100,000 | $662.0K | 0.00% | 00.0% | Unchanged |
| Cannell Peter B & Co Inc | 88,252 | $571.9K | 0.02% | −22,025−20.0% | Reduced |
| Rhumbline Advisers | 87,681 | $568.2K | 0.00% | −2,932−3.2% | Reduced |
| Credit Suisse AG | 83,681 | $542.3K | 0.00% | +5,574+7.1% | Added |
| Susquehanna International Group, LLP | 83,170 | $538.9K | 0.00% | +33,886+68.8% | Added |
| BNP Paribas Arbitrage, SA | 80,668 | $522.7K | 0.00% | +28,769+55.4% | Added |
| Ameriprise Financial Inc | 80,074 | $518.9K | 0.00% | −91,052−53.2% | Reduced |
| UBS Group AG | 79,682 | $516.3K | 0.00% | −11,359−12.5% | Reduced |
| Citigroup Inc | 79,523 | $515.3K | 0.00% | −388−0.5% | Reduced |
| Manufacturers Life Insurance Company, The | 78,211 | $506.8K | 0.00% | +82+0.1% | Added |
| American Century Companies Inc | 75,669 | $490.3K | 0.00% | −28,554−27.4% | Reduced |
| STRS Ohio | 73,200 | $474.0K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 69,257 | $448.8K | 0.00% | −6,632−8.7% | Reduced |
| Virginia Retirement Systems Et Al | 67,800 | $439.3K | 0.00% | −4,000−5.6% | Reduced |
| Man Group plc | – | $428.3K | 0.00% | – | – |
| UBS Asset Management Americas Inc | 64,720 | $419.4K | 0.00% | −11,712−15.3% | Reduced |
| AQR Capital Management LLC | 63,797 | $413.4K | 0.00% | +39,596+163.6% | Added |
| Jane Street Group, LLC | 62,063 | $402.2K | 0.00% | −16,967−21.5% | Reduced |
| Alps Advisors Inc | 61,832 | $400.7K | 0.00% | +562+0.9% | Added |
| Legal & General Group Plc | 59,811 | $387.6K | 0.00% | +5,509+10.1% | Added |
| Medici Capital LLC | 59,654 | $386.6K | 0.87% | +36,360+156.1% | Added |
| Susquehanna Fundamental Investments, LLC | 59,563 | $386.0K | 0.03% | −11,971−16.7% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 59,119 | $383.1K | 0.00% | +4,114+7.5% | Added |
| Capital Impact Advisors, LLC | 51,465 | $333.5K | 0.56% | 00.0% | Unchanged |
| Truist Financial Corp | 49,688 | $322.0K | 0.00% | −11,705−19.1% | Reduced |
| Trexquant Investment LP | 48,772 | $316.0K | 0.01% | +48,772 | New |
| Wells Fargo & Company | 46,876 | $303.8K | 0.00% | −8,303−15.0% | Reduced |
| Principal Financial Group Inc | 41,493 | $268.9K | 0.00% | +6,973+20.2% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 40,500 | $262.4K | 0.00% | −33,500−45.3% | Reduced |
| Amundi | 42,723 | $256.3K | 0.00% | +15,839+58.9% | Added |
| XTX Topco Ltd | 37,166 | $240.8K | 0.04% | +25,439+216.9% | Added |
| HSBC Holdings PLC | 36,807 | $240.6K | 0.00% | +14,472+64.8% | Added |
| Invesco Ltd. | 34,573 | $224.0K | 0.00% | +1,954+6.0% | Added |
| Deutsche Bank AG | 33,237 | $215.4K | 0.00% | −247,993−88.2% | Reduced |
| Profund Advisors LLC | 31,990 | $207.3K | 0.01% | +1,206+3.9% | Added |
| MetLife Investment Management | 31,825 | $206.2K | 0.00% | 00.0% | Unchanged |
| PDT Partners, LLC | 31,757 | $205.8K | 0.03% | −15,062−32.2% | Reduced |
| American International Group, Inc. | 31,677 | $205.3K | 0.00% | +1,126+3.7% | Added |
| Shell Asset Management Co | 31,503 | $204.0K | 0.01% | +31,503 | New |
| Utah Retirement Systems | 30,858 | $200.0K | 0.00% | +10,286+50.0% | Added |
| Vident Advisory, LLC | 26,802 | $173.7K | 0.01% | +26,802 | New |
| Stifel Financial Corp | 26,150 | $169.5K | 0.00% | +200+0.8% | Added |
| Voya Investment Management LLC | 25,946 | $168.1K | 0.00% | +638+2.5% | Added |
| State Board of Administration of Florida Retirement System | 25,570 | $165.7K | 0.00% | +180+0.7% | Added |
| Cornercap Investment Counsel Inc | 24,532 | $159.0K | 0.03% | +322+1.3% | Added |
| Janus Henderson Group PLC | 23,706 | $153.5K | 0.00% | +40.0% | Added |
| Massachusetts Financial Services Co | 21,951 | $142.2K | 0.00% | −841−3.7% | Reduced |
| Squarepoint Ops LLC | 21,783 | $141.2K | 0.00% | +8,711+66.6% | Added |
| Erste Asset Management GmbH | 19,000 | $127.1K | 0.00% | 00.0% | Unchanged |
| Axq Capital, LP | 19,088 | $123.7K | 0.04% | +19,088 | New |
| NinePointTwo Capital | 18,542 | $120.0K | 0.05% | 00.0% | Unchanged |
| Bailard, Inc. | 18,300 | $118.6K | 0.00% | +18,300 | New |