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 2023
Institutional positions in Alector, Inc. as of Dec 31, 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
- 148
- 0 vs. Q3 2023
- Shares held
- 63.9M
- +1.94M (+3.1%) vs. Q3 2023
- Total value
- $510.1M
- +$108.0M (+26.9%) vs. Q3 2023
- New holders
- 15
- 48 more added
- Sold out
- 15
- 49 more reduced
1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2023
Shares, value and share of portfolio for each institution holding Alector, Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Covestor Ltd | 9 | $0 | 0.00% | −1−10.0% | Reduced |
| Farther Finance Advisors, LLC | 2 | $16 | 0.00% | +2 | New |
| The PNC Financial Services Group, Inc. | 6 | $48 | 0.00% | −146−96.1% | Reduced |
| Parallel Advisors, LLC | 15 | $120 | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 21 | $168 | 0.00% | 00.0% | Unchanged |
| GWM Advisors LLC | 32 | $255 | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 48 | $286 | 0.00% | +48 | New |
| HighMark Wealth Management LLC | 50 | $399 | 0.00% | 00.0% | Unchanged |
| RFP Financial Group LLC | 64 | $511 | 0.00% | 00.0% | Unchanged |
| Quadrant Capital Group LLC | 91 | $727 | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 100 | $1.00K | 0.00% | −163−62.0% | Reduced |
| Chesapeake Asset Management LLC | 150 | $1.20K | 0.00% | 00.0% | Unchanged |
| National Bank of Canada | 200 | $1.59K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 277 | $2.00K | 0.00% | 00.0% | Unchanged |
| Mark Sheptoff Financial Planning, LLC | 300 | $2.39K | 0.00% | 00.0% | Unchanged |
| Lindbrook Capital, LLC | 445 | $3.55K | 0.00% | +332+293.8% | Added |
| Federation des caisses Desjardins du Quebec | 455 | $3.63K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 485 | $3.87K | 0.00% | +83+20.6% | Added |
| Advisory Services Network, LLC | 683 | $5.45K | 0.00% | +683 | New |
| Signaturefd, LLC | 1,271 | $10.1K | 0.00% | −575−31.1% | Reduced |
| Quantbot Technologies LP | 3,000 | $23.9K | 0.00% | +3,000 | New |
| Metropolitan Life Insurance Co | 3,430 | $27.4K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 6,218 | $49.6K | 0.00% | +4,231+212.9% | Added |
| Ameritas Investment Partners, Inc. | 6,260 | $50.0K | 0.00% | 00.0% | Unchanged |
| EntryPoint Capital, LLC | 7,191 | $57.4K | 0.06% | +7,191 | New |
| Great West Life Assurance Co | 7,785 | $62.0K | 0.00% | +4,930+172.7% | Added |
| Public Employees Retirement Association of Colorado | 7,914 | $63.0K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 9,025 | $72.0K | 0.00% | −648−6.7% | Reduced |
| China Universal Asset Management Co., Ltd. | 9,733 | $77.7K | 0.02% | +7,584+352.9% | Added |
| Texas Yale Capital Corp. | 10,000 | $79.8K | 0.00% | 00.0% | Unchanged |
| E Fund Management Co., Ltd. | 10,192 | $81.3K | 0.01% | +10,192 | New |
| Vontobel Holding Ltd. | 11,000 | $87.8K | 0.00% | 00.0% | Unchanged |
| PDT Partners, LLC | 11,157 | $89.0K | 0.01% | −20,600−64.9% | Reduced |
| Man Group plc | 11,164 | $89.1K | 0.00% | – | – |
| Virtus ETF Advisers LLC | 11,573 | $92.4K | 0.06% | −1,258−9.8% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 12,058 | $96.2K | 0.00% | 00.0% | Unchanged |
| Diversified Trust Co | 14,102 | $112.5K | 0.00% | +1,541+12.3% | Added |
| Caxton Associates LP | 14,349 | $114.5K | 0.01% | +14,349 | New |
| Teacher Retirement System of Texas | 14,509 | $116.0K | 0.00% | −3,209−18.1% | Reduced |
| Jasper Ridge Partners, L.P. | 14,706 | $117.4K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 15,279 | $121.9K | 0.00% | +14,148+1,250.9% | Added |
| Axq Capital, LP | 15,300 | $122.1K | 0.03% | −3,788−19.8% | Reduced |
| Blackstone Group Inc. | 15,429 | $123.1K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 15,882 | $126.7K | 0.00% | +2,158+15.7% | Added |
| SG Americas Securities, LLC | 16,726 | $133.0K | 0.00% | +16,726 | New |
| Wells Fargo & Company | 16,693 | $133.2K | 0.00% | −30,183−64.4% | Reduced |
| Walleye Trading LLC | 17,279 | $137.9K | 0.00% | +17,279 | New |
| Arizona State Retirement System | 17,576 | $140.3K | 0.00% | −223−1.3% | Reduced |
| NinePointTwo Capital | 18,542 | $147.0K | 0.06% | 00.0% | Unchanged |
| Amundi | 18,638 | $150.6K | 0.00% | −24,085−56.4% | Reduced |
| Brevan Howard Capital Management LP | 18,975 | $151.4K | 0.02% | +18,975 | New |
| Erste Asset Management GmbH | 19,000 | $152.0K | 0.00% | 00.0% | Unchanged |
| Cookson Peirce & Co Inc | 20,000 | $160.0K | 0.01% | +20,000 | New |
| Massachusetts Financial Services Co | 21,280 | $169.8K | 0.00% | −671−3.1% | Reduced |
| Royal Bank of Canada | 22,377 | $179.0K | 0.00% | +13,391+149.0% | Added |
| Vident Advisory, LLC | 23,190 | $185.1K | 0.00% | −3,612−13.5% | Reduced |
| Janus Henderson Group PLC | 23,658 | $188.9K | 0.00% | −48−0.2% | Reduced |
| Shell Asset Management Co | 24,191 | $193.0K | 0.01% | −7,312−23.2% | Reduced |
| Cornercap Investment Counsel Inc | 24,532 | $195.8K | 0.03% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 25,570 | $204.0K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 25,758 | $205.5K | 0.00% | +13,189+104.9% | Added |
| Voya Investment Management LLC | 25,946 | $207.0K | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 30,130 | $240.4K | 0.00% | −4,443−12.9% | Reduced |
| Utah Retirement Systems | 30,858 | $246.2K | 0.00% | 00.0% | Unchanged |
| American International Group, Inc. | 31,550 | $251.8K | 0.00% | −127−0.4% | Reduced |
| Profund Advisors LLC | 31,667 | $252.7K | 0.01% | −323−1.0% | Reduced |
| MetLife Investment Management | 31,825 | $254.0K | 0.00% | 00.0% | Unchanged |
| Point72 Middle East FZE | 32,726 | $261.2K | 0.02% | +32,726 | New |
| HSBC Holdings PLC | 34,145 | $269.3K | 0.00% | −2,662−7.2% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 40,500 | $323.2K | 0.00% | 00.0% | Unchanged |
| Balyasny Asset Management LLC | 41,136 | $328.3K | 0.00% | +41,136 | New |
| Trexquant Investment LP | 44,571 | $355.7K | 0.01% | −4,201−8.6% | Reduced |
| Truist Financial Corp | 45,638 | $364.2K | 0.00% | −4,050−8.2% | Reduced |
| Principal Financial Group Inc | 48,755 | $389.1K | 0.00% | +7,262+17.5% | Added |
| Alps Advisors Inc | 56,790 | $453.2K | 0.00% | −5,042−8.2% | Reduced |
| Los Angeles Capital Management LLC | 58,756 | $468.9K | 0.00% | −111,442−65.5% | Reduced |
| Legal & General Group Plc | 59,642 | $475.9K | 0.00% | −169−0.3% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 61,239 | $488.7K | 0.00% | +2,120+3.6% | Added |
| Federated Hermes, Inc. | 64,523 | $514.9K | 0.00% | −91,133−58.5% | Reduced |
| UBS Asset Management Americas Inc | 64,720 | $516.5K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 65,478 | $522.5K | 0.11% | +28,312+76.2% | Added |
| AQR Capital Management LLC | 65,667 | $524.0K | 0.00% | +1,870+2.9% | Added |
| Cannell Peter B & Co Inc | 66,177 | $528.1K | 0.02% | −22,075−25.0% | Reduced |
| California State Teachers Retirement System | 66,424 | $530.1K | 0.00% | −2,833−4.1% | Reduced |
| Russell Investments Group, Ltd. | 71,282 | $568.8K | 0.00% | −48,838−40.7% | Reduced |
| American Century Companies Inc | 72,583 | $579.2K | 0.00% | −3,086−4.1% | Reduced |
| STRS Ohio | 73,200 | $584.0K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 79,205 | $632.1K | 0.00% | −3,965−4.8% | Reduced |
| Citigroup Inc | 82,544 | $658.7K | 0.00% | +3,021+3.8% | Added |
| Credit Suisse AG | 85,298 | $680.7K | 0.00% | +1,617+1.9% | Added |
| Rhumbline Advisers | 87,598 | $699.0K | 0.00% | −83−0.1% | Reduced |
| BNP Paribas Arbitrage, SA | 94,955 | $757.7K | 0.00% | +14,287+17.7% | Added |
| DekaBank Deutsche Girozentrale | 100,000 | $784.0K | 0.00% | 00.0% | Unchanged |
| Capital Impact Advisors, LLC | 102,381 | $817.0K | 1.07% | +50,916+98.9% | Added |
| Jane Street Group, LLC | 105,425 | $841.3K | 0.00% | +43,362+69.9% | Added |
| Ameriprise Financial Inc | 107,431 | $857.3K | 0.00% | +27,357+34.2% | Added |
| TD Asset Management Inc | 111,738 | $891.7K | 0.00% | −7,400−6.2% | Reduced |
| Manufacturers Life Insurance Company, The | 117,994 | $941.6K | 0.00% | +39,783+50.9% | Added |
| Swiss National Bank | 123,900 | $988.7K | 0.00% | −11,700−8.6% | Reduced |
| Victory Capital Management Inc | 125,392 | $1.00M | 0.00% | −9,326−6.9% | Reduced |