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, Q1 2024
Institutional positions in Alector, Inc. as of Mar 31, 2024. 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
- 157
- +11 vs. Q4 2023
- Shares held
- 74.2M
- +10.4M (+16.2%) vs. Q4 2023
- Total value
- $446.6M
- −$62.8M (−12.3%) vs. Q4 2023
- New holders
- 28
- 60 more added
- Sold out
- 17
- 36 more reduced
2 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2024
Shares, value and share of portfolio for each institution holding Alector, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Covestor Ltd | 15 | $0 | 0.00% | +6+66.7% | Added |
| Farther Finance Advisors, LLC | 2 | $12 | 0.00% | 00.0% | Unchanged |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 13 | $78 | 0.00% | +13 | New |
| Parallel Advisors, LLC | 15 | $90 | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 21 | $126 | 0.00% | 00.0% | Unchanged |
| GWM Advisors LLC | 32 | $193 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 49 | $295 | 0.00% | +49 | New |
| GAMMA Investing LLC | 74 | $445 | 0.00% | +26+54.2% | Added |
| Quadrant Capital Group LLC | 91 | $548 | 0.00% | 00.0% | Unchanged |
| National Bank of Canada | 200 | $1.05K | 0.00% | 00.0% | Unchanged |
| Mark Sheptoff Financial Planning, LLC | 300 | $1.81K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 277 | $2.00K | 0.00% | 00.0% | Unchanged |
| Lindbrook Capital, LLC | 445 | $2.68K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 455 | $2.74K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 731 | $4.00K | 0.00% | +631+631.0% | Added |
| Tower Research Capital LLC (TRC) | 878 | $5.29K | 0.00% | −14,401−94.3% | Reduced |
| Pacer Advisors, Inc. | 1,288 | $7.75K | 0.00% | +1,288 | New |
| Signaturefd, LLC | 1,471 | $8.86K | 0.00% | +200+15.7% | Added |
| Carolinas Wealth Consulting LLC | 1,500 | $9.03K | 0.00% | +1,500 | New |
| Advisor Group Holdings, Inc. | 1,891 | $11.4K | 0.00% | +1,406+289.9% | Added |
| Amalgamated Bank | 2,179 | $13.0K | 0.00% | −6,846−75.9% | Reduced |
| Royal Bank of Canada | 2,960 | $19.0K | 0.00% | −19,417−86.8% | Reduced |
| Metropolitan Life Insurance Co | 3,430 | $20.6K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 6,260 | $37.7K | 0.00% | 00.0% | Unchanged |
| Allspring Global Investments Holdings, LLC | 6,674 | $40.2K | 0.00% | +6,674 | New |
| Great West Life Assurance Co | 7,785 | $47.0K | 0.00% | 00.0% | Unchanged |
| Public Employees Retirement Association of Colorado | 7,914 | $48.0K | 0.00% | 00.0% | Unchanged |
| Aquatic Capital Management LLC | 9,500 | $57.2K | 0.00% | +9,500 | New |
| Lazard Asset Management LLC | 9,833 | $59.0K | 0.00% | +9,833 | New |
| Texas Yale Capital Corp. | 10,000 | $60.2K | 0.00% | 00.0% | Unchanged |
| Mackenzie Financial Corp | 10,582 | $63.7K | 0.00% | +10,582 | New |
| Virtus ETF Advisers LLC | 10,829 | $65.2K | 0.03% | −744−6.4% | Reduced |
| Oxford Asset Management LLP | 12,002 | $72.3K | 0.08% | +12,002 | New |
| Vontobel Holding Ltd. | 13,000 | $78.3K | 0.00% | +2,000+18.2% | Added |
| E Fund Management Co., Ltd. | 13,025 | $78.4K | 0.00% | +2,833+27.8% | Added |
| Diversified Trust Co | 14,102 | $84.9K | 0.00% | 00.0% | Unchanged |
| NEOS Investment Management LLC | 14,344 | $86.4K | 0.01% | +14,344 | New |
| Caxton Associates LP | 14,349 | $86.4K | 0.01% | 00.0% | Unchanged |
| Jasper Ridge Partners, L.P. | 14,706 | $88.5K | 0.00% | 00.0% | Unchanged |
| Teacher Retirement System of Texas | 14,793 | $89.0K | 0.00% | +284+2.0% | Added |
| Blackstone Group Inc. | 15,429 | $92.9K | 0.00% | 00.0% | Unchanged |
| Jump Financial, LLC | 15,925 | $95.9K | 0.00% | +15,925 | New |
| Shell Asset Management Co | 21,995 | $100.0K | 0.00% | −2,196−9.1% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 17,760 | $106.9K | 0.00% | +5,702+47.3% | Added |
| Arizona State Retirement System | 18,277 | $110.0K | 0.00% | +701+4.0% | Added |
| China Universal Asset Management Co., Ltd. | 18,403 | $110.8K | 0.01% | +8,670+89.1% | Added |
| Qube Research & Technologies Ltd | 18,789 | $113.1K | 0.00% | +18,789 | New |
| XTX Topco Ltd | 19,091 | $114.9K | 0.02% | −46,387−70.8% | Reduced |
| Erste Asset Management GmbH | 19,000 | $115.5K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 19,709 | $118.6K | 0.00% | +3,827+24.1% | Added |
| Wells Fargo & Company | 21,879 | $131.7K | 0.00% | +5,186+31.1% | Added |
| Vident Advisory, LLC | 22,011 | $132.5K | 0.00% | −1,179−5.1% | Reduced |
| Voya Investment Management LLC | 22,247 | $133.9K | 0.00% | −3,699−14.3% | Reduced |
| Principal Financial Group Inc | 22,512 | $135.5K | 0.00% | −26,243−53.8% | Reduced |
| US Bancorp | 22,953 | $138.2K | 0.00% | +16,735+269.1% | Added |
| Janus Henderson Group PLC | 23,658 | $142.3K | 0.00% | 00.0% | Unchanged |
| Cornercap Investment Counsel Inc | 24,532 | $147.7K | 0.02% | 00.0% | Unchanged |
| Capital Impact Advisors, LLC | 24,562 | $147.9K | 0.19% | −77,819−76.0% | Reduced |
| Engineers Gate Manager LP | 24,660 | $148.5K | 0.00% | +24,660 | New |
| New York State Common Retirement Fund | 25,438 | $153.1K | 0.00% | −320−1.2% | Reduced |
| HSBC Holdings PLC | 25,528 | $153.7K | 0.00% | −8,617−25.2% | Reduced |
| State Board of Administration of Florida Retirement System | 25,390 | $157.2K | 0.00% | −180−0.7% | Reduced |
| Simplex Trading, LLC | 29,132 | $175.0K | 0.01% | +29,132 | New |
| Utah Retirement Systems | 30,858 | $185.8K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 31,169 | $187.6K | 0.00% | +31,169 | New |
| Invesco Ltd. | 31,627 | $190.4K | 0.00% | +1,497+5.0% | Added |
| MetLife Investment Management | 34,413 | $207.2K | 0.00% | +2,588+8.1% | Added |
| American International Group, Inc. | 35,655 | $214.6K | 0.00% | +4,105+13.0% | Added |
| Jane Street Group, LLC | 36,476 | $219.6K | 0.00% | −68,949−65.4% | Reduced |
| Squarepoint Ops LLC | 39,284 | $236.5K | 0.00% | +39,284 | New |
| Truist Financial Corp | 39,845 | $239.9K | 0.00% | −5,793−12.7% | Reduced |
| Amundi | 48,918 | $249.0K | 0.00% | +30,280+162.5% | Added |
| Trexquant Investment LP | 42,444 | $255.5K | 0.01% | −2,127−4.8% | Reduced |
| Profund Advisors LLC | 43,322 | $260.8K | 0.01% | +11,655+36.8% | Added |
| BNP Paribas Arbitrage, SA | 43,926 | $264.4K | 0.00% | −51,029−53.7% | Reduced |
| Susquehanna International Group, LLP | 48,826 | $293.9K | 0.00% | −30,379−38.4% | Reduced |
| ADAR1 Capital Management, LLC | 52,500 | $316.1K | 0.09% | +52,500 | New |
| Cubist Systematic Strategies, LLC | 53,271 | $320.7K | 0.00% | −109,558−67.3% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 52,643 | $325.6K | 0.00% | −8,596−14.0% | Reduced |
| State of Wisconsin Investment Board | 55,015 | $331.2K | 0.00% | −74,018−57.4% | Reduced |
| PDT Partners, LLC | 57,530 | $346.3K | 0.03% | +46,373+415.6% | Added |
| Los Angeles Capital Management LLC | 58,756 | $353.7K | 0.00% | 00.0% | Unchanged |
| New York Life Investment Management LLC | 59,829 | $360.2K | 0.00% | +59,829 | New |
| Legal & General Group Plc | 60,354 | $363.3K | 0.00% | +712+1.2% | Added |
| Gsa Capital Partners LLP | 63,583 | $383.0K | 0.03% | +63,583 | New |
| Man Group plc | 65,298 | $393.1K | 0.00% | +54,134+484.9% | Added |
| Federated Hermes, Inc. | 65,829 | $396.3K | 0.00% | +1,306+2.0% | Added |
| Spears Abacus Advisors LLC | 66,177 | $398.4K | 0.01% | +66,177 | New |
| California State Teachers Retirement System | 67,058 | $403.7K | 0.00% | +634+1.0% | Added |
| Alps Advisors Inc | 67,531 | $406.5K | 0.00% | +10,741+18.9% | Added |
| American Century Companies Inc | 71,429 | $430.0K | 0.00% | −1,154−1.6% | Reduced |
| UBS Asset Management Americas Inc | 74,055 | $445.8K | 0.00% | +9,335+14.4% | Added |
| Russell Investments Group, Ltd. | 78,348 | $471.7K | 0.00% | +7,066+9.9% | Added |
| Credit Suisse AG | 90,715 | $546.1K | 0.00% | +5,417+6.4% | Added |
| STRS Ohio | 91,200 | $549.0K | 0.00% | +18,000+24.6% | Added |
| Rhumbline Advisers | 91,526 | $551.0K | 0.00% | +3,928+4.5% | Added |
| DekaBank Deutsche Girozentrale | 100,000 | $605.0K | 0.00% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 102,077 | $614.5K | 0.00% | −5,354−5.0% | Reduced |
| Millennium Management LLC | 102,202 | $615.3K | 0.00% | −133,433−56.6% | Reduced |
| Barclays PLC | 102,225 | $615.4K | 0.00% | −91,003−47.1% | Reduced |