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 |
|---|---|---|---|---|---|
| Cornercap Investment Counsel Inc | 24,532 | $147.7K | 0.02% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 23,658 | $142.3K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 22,953 | $138.2K | 0.00% | +16,735+269.1% | Added |
| Principal Financial Group Inc | 22,512 | $135.5K | 0.00% | −26,243−53.8% | Reduced |
| Voya Investment Management LLC | 22,247 | $133.9K | 0.00% | −3,699−14.3% | Reduced |
| Vident Advisory, LLC | 22,011 | $132.5K | 0.00% | −1,179−5.1% | Reduced |
| Wells Fargo & Company | 21,879 | $131.7K | 0.00% | +5,186+31.1% | Added |
| ProShare Advisors LLC | 19,709 | $118.6K | 0.00% | +3,827+24.1% | Added |
| Erste Asset Management GmbH | 19,000 | $115.5K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 19,091 | $114.9K | 0.02% | −46,387−70.8% | Reduced |
| Qube Research & Technologies Ltd | 18,789 | $113.1K | 0.00% | +18,789 | New |
| China Universal Asset Management Co., Ltd. | 18,403 | $110.8K | 0.01% | +8,670+89.1% | Added |
| Arizona State Retirement System | 18,277 | $110.0K | 0.00% | +701+4.0% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 17,760 | $106.9K | 0.00% | +5,702+47.3% | Added |
| Shell Asset Management Co | 21,995 | $100.0K | 0.00% | −2,196−9.1% | Reduced |
| Jump Financial, LLC | 15,925 | $95.9K | 0.00% | +15,925 | New |
| Blackstone Group Inc. | 15,429 | $92.9K | 0.00% | 00.0% | Unchanged |
| Teacher Retirement System of Texas | 14,793 | $89.0K | 0.00% | +284+2.0% | Added |
| Jasper Ridge Partners, L.P. | 14,706 | $88.5K | 0.00% | 00.0% | Unchanged |
| Caxton Associates LP | 14,349 | $86.4K | 0.01% | 00.0% | Unchanged |
| NEOS Investment Management LLC | 14,344 | $86.4K | 0.01% | +14,344 | New |
| Diversified Trust Co | 14,102 | $84.9K | 0.00% | 00.0% | Unchanged |
| E Fund Management Co., Ltd. | 13,025 | $78.4K | 0.00% | +2,833+27.8% | Added |
| Vontobel Holding Ltd. | 13,000 | $78.3K | 0.00% | +2,000+18.2% | Added |
| Oxford Asset Management LLP | 12,002 | $72.3K | 0.08% | +12,002 | New |
| Virtus ETF Advisers LLC | 10,829 | $65.2K | 0.03% | −744−6.4% | Reduced |
| Mackenzie Financial Corp | 10,582 | $63.7K | 0.00% | +10,582 | New |
| Texas Yale Capital Corp. | 10,000 | $60.2K | 0.00% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 9,833 | $59.0K | 0.00% | +9,833 | New |
| Aquatic Capital Management LLC | 9,500 | $57.2K | 0.00% | +9,500 | New |
| Public Employees Retirement Association of Colorado | 7,914 | $48.0K | 0.00% | 00.0% | Unchanged |
| Great West Life Assurance Co | 7,785 | $47.0K | 0.00% | 00.0% | Unchanged |
| Allspring Global Investments Holdings, LLC | 6,674 | $40.2K | 0.00% | +6,674 | New |
| Ameritas Investment Partners, Inc. | 6,260 | $37.7K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 3,430 | $20.6K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 2,960 | $19.0K | 0.00% | −19,417−86.8% | Reduced |
| Amalgamated Bank | 2,179 | $13.0K | 0.00% | −6,846−75.9% | Reduced |
| Advisor Group Holdings, Inc. | 1,891 | $11.4K | 0.00% | +1,406+289.9% | Added |
| Carolinas Wealth Consulting LLC | 1,500 | $9.03K | 0.00% | +1,500 | New |
| Signaturefd, LLC | 1,471 | $8.86K | 0.00% | +200+15.7% | Added |
| Pacer Advisors, Inc. | 1,288 | $7.75K | 0.00% | +1,288 | New |
| Tower Research Capital LLC (TRC) | 878 | $5.29K | 0.00% | −14,401−94.3% | Reduced |
| CWM, LLC | 731 | $4.00K | 0.00% | +631+631.0% | Added |
| Federation des caisses Desjardins du Quebec | 455 | $2.74K | 0.00% | 00.0% | Unchanged |
| Lindbrook Capital, LLC | 445 | $2.68K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 277 | $2.00K | 0.00% | 00.0% | Unchanged |
| Mark Sheptoff Financial Planning, LLC | 300 | $1.81K | 0.00% | 00.0% | Unchanged |
| National Bank of Canada | 200 | $1.05K | 0.00% | 00.0% | Unchanged |
| Quadrant Capital Group LLC | 91 | $548 | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 74 | $445 | 0.00% | +26+54.2% | Added |
| Nisa Investment Advisors, LLC | 49 | $295 | 0.00% | +49 | New |
| GWM Advisors LLC | 32 | $193 | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 21 | $126 | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 15 | $90 | 0.00% | 00.0% | Unchanged |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 13 | $78 | 0.00% | +13 | New |
| Farther Finance Advisors, LLC | 2 | $12 | 0.00% | 00.0% | Unchanged |
| Covestor Ltd | 15 | $0 | 0.00% | +6+66.7% | Added |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −240,625−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −239,116−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −41,136−100.0% | Sold out |
| Healthcare of Ontario Pension Plan Trust Fund | 0 | $0 | 0.00% | −40,500−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −32,726−100.0% | Sold out |
| Cookson Peirce & Co Inc | 0 | $0 | 0.00% | −20,000−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −18,975−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −17,279−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −16,726−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −15,300−100.0% | Sold out |
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −7,191−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −3,000−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −683−100.0% | Sold out |
| Chesapeake Asset Management LLC | 0 | $0 | 0.00% | −150−100.0% | Sold out |
| RFP Financial Group LLC | 0 | $0 | 0.00% | −64−100.0% | Sold out |
| HighMark Wealth Management LLC | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| The PNC Financial Services Group, Inc. | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Cannell Peter B & Co Inc | – | – | – | – | Not filed |
| NinePointTwo Capital | – | – | – | – | Not filed |