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 2025
Institutional positions in Alector, Inc. as of Sep 30, 2025. 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
- +13 vs. Q2 2025
- Shares held
- 74.7M
- +4.24M (+6.0%) vs. Q2 2025
- Total value
- $221.2M
- +$122.5M (+124.1%) vs. Q2 2025
- New holders
- 25
- 46 more added
- Sold out
- 12
- 40 more reduced
Compare with Q2 2025: 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 2025
Shares, value and share of portfolio for each institution holding Alector, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Diversified Trust Co | 14,102 | $41.7K | 0.00% | 00.0% | Unchanged |
| Voya Investment Management LLC | 13,929 | $41.2K | 0.00% | −10,692−43.4% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 11,970 | $36.7K | 0.00% | +11,970 | New |
| Belvedere Trading LLC | 10,486 | $31.0K | 0.00% | +10,486 | New |
| New York State Common Retirement Fund | 10,310 | $30.5K | 0.00% | 00.0% | Unchanged |
| Hershey Trust Co | 10,286 | $30.4K | 0.00% | +10,286 | New |
| SVB Capital Management, LLC | 10,286 | $30.4K | 0.10% | +10,286 | New |
| Lexington Partners L.P. | 10,108 | $29.9K | 0.01% | +10,108 | New |
| Texas Yale Capital Corp. | 10,000 | $29.6K | 0.00% | 00.0% | Unchanged |
| Point72 (DIFC) Ltd | 9,807 | $29.0K | 0.00% | +9,807 | New |
| Ameritas Investment Partners, Inc. | 8,175 | $24.2K | 0.00% | 00.0% | Unchanged |
| Point72 Asia (Singapore) Pte. Ltd. | 7,636 | $22.6K | 0.00% | +7,578+13,065.5% | Added |
| Legal & General Group Plc | 6,039 | $17.9K | 0.00% | −1,356−18.3% | Reduced |
| California State Teachers Retirement System | 4,963 | $14.7K | 0.00% | +4,963 | New |
| Sterling Capital Management LLC | 4,399 | $13.0K | 0.00% | +2,405+120.6% | Added |
| Mirae Asset Global Investments Co., Ltd. | 3,913 | $11.6K | 0.00% | +50+1.3% | Added |
| Nisa Investment Advisors, LLC | 3,347 | $9.91K | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 3,190 | $9.44K | 0.00% | +3,190 | New |
| Amalgamated Bank | 2,540 | $8.00K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 2,514 | $7.44K | 0.00% | −10,885−81.2% | Reduced |
| GF Fund Management Co. Ltd. | 2,178 | $6.45K | 0.00% | −251−10.3% | Reduced |
| Rockefeller Capital Management L.P. | 1,367 | $4.05K | 0.00% | +1,367 | New |
| EverSource Wealth Advisors, LLC | 1,188 | $3.52K | 0.00% | +939+377.1% | Added |
| Advisor Group Holdings, Inc. | 1,120 | $3.17K | 0.00% | 00.0% | Unchanged |
| Optiver Holding B.V. | 1,018 | $3.01K | 0.00% | +1,018 | New |
| True Wealth Design, LLC | 799 | $2.37K | 0.00% | −131−14.1% | Reduced |
| UMA Financial Services, Inc. | 752 | $2.23K | 0.00% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 542 | $1.60K | 0.00% | +542 | New |
| Essential Partners LLC | 530 | $1.57K | 0.00% | +86+19.4% | Added |
| Clearstead Advisors, LLC | 453 | $1.34K | 0.00% | +130+40.2% | Added |
| Fortitude Family Office, LLC | 439 | $1.30K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 415 | $1.23K | 0.00% | 00.0% | Unchanged |
| Rise Advisors, LLC | 407 | $1.21K | 0.00% | 00.0% | Unchanged |
| Rialto Wealth Management, LLC | 403 | $1.19K | 0.00% | 00.0% | Unchanged |
| Bryn Mawr Trust Co | 400 | $1.18K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 370 | $1.09K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 277 | $1.00K | 0.00% | 00.0% | Unchanged |
| Mark Sheptoff Financial Planning, LLC | 300 | $888 | 0.00% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 271 | $803 | 0.00% | +271 | New |
| Hughes Financial Services, LLC | 553 | $724 | 0.00% | −376−40.5% | Reduced |
| Rothschild Investment LLC | 219 | $648 | 0.00% | −161−42.4% | Reduced |
| National Bank of Canada | 200 | $592 | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 84 | $249 | 0.00% | −116−58.0% | Reduced |
| IFP Advisors, Inc | 47 | $139 | 0.00% | +38+422.2% | Added |
| GWM Advisors LLC | 32 | $95 | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 21 | $63 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 20 | $59 | 0.00% | 00.0% | Unchanged |
| Truvestments Capital LLC | 2 | $6 | 0.00% | 00.0% | Unchanged |
| Avion Wealth | 336 | $0 | 0.00% | +336 | New |
| ADAR1 Capital Management, LLC | 0 | $0 | 0.00% | −1,723,526−100.0% | Sold out |
| Sio Capital Management, LLC | 0 | $0 | 0.00% | −845,531−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −266,204−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −223,092−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −150,669−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −70,778−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −44,460−100.0% | Sold out |
| State Board of Administration of Florida Retirement System | 0 | $0 | 0.00% | −25,570−100.0% | Sold out |
| Shell Asset Management Co | 0 | $0 | 0.00% | −13,887−100.0% | Sold out |
| US Bancorp | 0 | $0 | 0.00% | −12,427−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −1,479−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −601−100.0% | Sold out |