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 |
|---|---|---|---|---|---|
| Avion Wealth | 336 | $0 | 0.00% | +336 | New |
| Truvestments Capital LLC | 2 | $6 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 20 | $59 | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 21 | $63 | 0.00% | 00.0% | Unchanged |
| GWM Advisors LLC | 32 | $95 | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 47 | $139 | 0.00% | +38+422.2% | Added |
| Allworth Financial LP | 84 | $249 | 0.00% | −116−58.0% | Reduced |
| National Bank of Canada | 200 | $592 | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 219 | $648 | 0.00% | −161−42.4% | Reduced |
| Hughes Financial Services, LLC | 553 | $724 | 0.00% | −376−40.5% | Reduced |
| Advisory Services Network, LLC | 271 | $803 | 0.00% | +271 | New |
| Mark Sheptoff Financial Planning, LLC | 300 | $888 | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 277 | $1.00K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 370 | $1.09K | 0.00% | 00.0% | Unchanged |
| Bryn Mawr Trust Co | 400 | $1.18K | 0.00% | 00.0% | Unchanged |
| Rialto Wealth Management, LLC | 403 | $1.19K | 0.00% | 00.0% | Unchanged |
| Rise Advisors, LLC | 407 | $1.21K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 415 | $1.23K | 0.00% | 00.0% | Unchanged |
| Fortitude Family Office, LLC | 439 | $1.30K | 0.00% | 00.0% | Unchanged |
| Clearstead Advisors, LLC | 453 | $1.34K | 0.00% | +130+40.2% | Added |
| Essential Partners LLC | 530 | $1.57K | 0.00% | +86+19.4% | Added |
| Point72 Asset Management, L.P. | 542 | $1.60K | 0.00% | +542 | New |
| UMA Financial Services, Inc. | 752 | $2.23K | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 799 | $2.37K | 0.00% | −131−14.1% | Reduced |
| Optiver Holding B.V. | 1,018 | $3.01K | 0.00% | +1,018 | New |
| Advisor Group Holdings, Inc. | 1,120 | $3.17K | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 1,188 | $3.52K | 0.00% | +939+377.1% | Added |
| Rockefeller Capital Management L.P. | 1,367 | $4.05K | 0.00% | +1,367 | New |
| GF Fund Management Co. Ltd. | 2,178 | $6.45K | 0.00% | −251−10.3% | Reduced |
| Tower Research Capital LLC (TRC) | 2,514 | $7.44K | 0.00% | −10,885−81.2% | Reduced |
| Amalgamated Bank | 2,540 | $8.00K | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 3,190 | $9.44K | 0.00% | +3,190 | New |
| Nisa Investment Advisors, LLC | 3,347 | $9.91K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 3,913 | $11.6K | 0.00% | +50+1.3% | Added |
| Sterling Capital Management LLC | 4,399 | $13.0K | 0.00% | +2,405+120.6% | Added |
| California State Teachers Retirement System | 4,963 | $14.7K | 0.00% | +4,963 | New |
| Legal & General Group Plc | 6,039 | $17.9K | 0.00% | −1,356−18.3% | Reduced |
| Point72 Asia (Singapore) Pte. Ltd. | 7,636 | $22.6K | 0.00% | +7,578+13,065.5% | Added |
| Ameritas Investment Partners, Inc. | 8,175 | $24.2K | 0.00% | 00.0% | Unchanged |
| Point72 (DIFC) Ltd | 9,807 | $29.0K | 0.00% | +9,807 | New |
| Texas Yale Capital Corp. | 10,000 | $29.6K | 0.00% | 00.0% | Unchanged |
| Lexington Partners L.P. | 10,108 | $29.9K | 0.01% | +10,108 | New |
| 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 |
| New York State Common Retirement Fund | 10,310 | $30.5K | 0.00% | 00.0% | Unchanged |
| Belvedere Trading LLC | 10,486 | $31.0K | 0.00% | +10,486 | New |
| Wealth Enhancement Advisory Services, LLC | 11,970 | $36.7K | 0.00% | +11,970 | New |
| Voya Investment Management LLC | 13,929 | $41.2K | 0.00% | −10,692−43.4% | Reduced |
| Diversified Trust Co | 14,102 | $41.7K | 0.00% | 00.0% | Unchanged |
| Hamilton Lane Advisors LLC | 14,402 | $42.6K | 0.02% | +14,402 | New |
| Engineers Gate Manager LP | 14,493 | $42.9K | 0.00% | +14,493 | New |
| FNY Investment Advisers, LLC | 15,000 | $44.0K | 0.01% | −5,000−25.0% | Reduced |
| ProShare Advisors LLC | 15,431 | $45.7K | 0.00% | −4,647−23.1% | Reduced |
| DLK Investment Management, LLC | 15,500 | $45.9K | 0.02% | 00.0% | Unchanged |
| Creative Planning | 15,721 | $46.5K | 0.00% | +15,721 | New |
| SEI Investments Co | 16,884 | $50.0K | 0.00% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 17,741 | $52.5K | 0.00% | −2,342−11.7% | Reduced |
| BNP Paribas Arbitrage, SA | 18,269 | $54.1K | 0.00% | +6,635+57.0% | Added |
| Erste Asset Management GmbH | 19,000 | $58.0K | 0.00% | 00.0% | Unchanged |
| American Century Companies Inc | 20,481 | $60.6K | 0.00% | +20,481 | New |
| Graham Capital Management, L.P. | 21,215 | $62.8K | 0.00% | −158−0.7% | Reduced |
| Group One Trading, L.P. | 22,321 | $66.1K | 0.00% | +22,321 | New |
| Police & Firemen's Retirement System of New Jersey | 23,426 | $69.3K | 0.00% | +6,422+37.8% | Added |
| Apollon Wealth Management, LLC | 25,000 | $74.0K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 25,169 | $75.0K | 0.00% | −728−2.8% | Reduced |
| Blackstone Group Inc. | 25,715 | $76.1K | 0.00% | 00.0% | Unchanged |
| Vontobel Holding Ltd. | 26,000 | $77.0K | 0.00% | −12,000−31.6% | Reduced |
| Cerity Partners LLC | 26,807 | $79.3K | 0.00% | +3,071+12.9% | Added |
| Prudential Financial Inc | 28,022 | $82.9K | 0.00% | +6,700+31.4% | Added |
| MetLife Investment Management | 28,820 | $85.3K | 0.00% | +28,820 | New |
| Persistent Asset Partners Ltd | 31,240 | $92.5K | 0.07% | −29,856−48.9% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 32,129 | $95.1K | 0.00% | −14,157−30.6% | Reduced |
| Intech Investment Management LLC | 33,428 | $98.9K | 0.00% | −6,487−16.3% | Reduced |
| Tudor Investment Corp Et Al | 41,282 | $122.2K | 0.00% | +487+1.2% | Added |
| HSBC Holdings PLC | 48,666 | $139.7K | 0.00% | −3,034−5.9% | Reduced |
| Bank of Montreal | 52,380 | $155.0K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 52,425 | $155.2K | 0.00% | +1,824+3.6% | Added |
| Ieq Capital, LLC | 53,050 | $157.0K | 0.00% | −5,948−10.1% | Reduced |
| Citigroup Inc | 53,938 | $159.7K | 0.00% | +4,477+9.1% | Added |
| Velan Capital Investment Management LP | 55,000 | $162.8K | 0.15% | 00.0% | Unchanged |
| JustInvest LLC | 58,320 | $172.6K | 0.00% | +6,225+11.9% | Added |
| Spears Abacus Advisors LLC | 59,223 | $175.3K | 0.00% | −2,290−3.7% | Reduced |
| HRT Financial LP | 60,164 | $178.0K | 0.00% | +60,164 | New |
| Public Employees Retirement System of Ohio | 68,200 | $201.9K | 0.00% | +60,300+763.3% | Added |
| Artia Global Partners LP | 71,029 | $210.2K | 0.04% | +71,029 | New |
| Jasper Ridge Partners, L.P. | 71,776 | $212.5K | 0.00% | +41,144+134.3% | Added |
| Utah Retirement Systems | 72,002 | $213.1K | 0.00% | +20,572+40.0% | Added |
| Los Angeles Capital Management LLC | 91,236 | $270.1K | 0.00% | −60,660−39.9% | Reduced |
| Alliancebernstein L.P. | 92,940 | $275.1K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 98,513 | $291.6K | 0.02% | +25,175+34.3% | Added |
| Cubist Systematic Strategies, LLC | 100,067 | $296.2K | 0.00% | +78,248+358.6% | Added |
| Simplex Trading, LLC | 100,944 | $298.0K | 0.01% | +100,944 | New |
| DekaBank Deutsche Girozentrale | 100,000 | $303.0K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 104,824 | $310.3K | 0.00% | +4,458+4.4% | Added |
| STRS Ohio | 110,400 | $326.8K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 114,270 | $338.2K | 0.00% | −12,298−9.7% | Reduced |
| Bridgeway Capital Management, LLC | 115,000 | $340.4K | 0.01% | 00.0% | Unchanged |
| Nuveen, LLC | 133,248 | $394.4K | 0.00% | −22,365−14.4% | Reduced |
| Diadema Partners LP | 136,023 | $402.6K | 0.28% | −130,000−48.9% | Reduced |
| JPMorgan Chase & Co | 136,385 | $403.7K | 0.00% | +90,894+199.8% | Added |