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, Q2 2026
Institutional positions in Alector, Inc. as of Jun 30, 2026. 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
- 140
- +4 vs. Q1 2026
- Shares held
- 91.2M
- +2.87M (+3.2%) vs. Q1 2026
- Total value
- $183.4M
- −$6.54M (−3.4%) vs. Q1 2026
- New holders
- 13
- 59 more added
- Sold out
- 9
- 35 more reduced
2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Alector, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Fifth Third Bancorp | 6 | $12 | 0.00% | 00.0% | Unchanged |
| JPL Wealth Management, LLC | 18 | $37 | 0.00% | +18 | New |
| SBI Securities Co., Ltd. | 20 | $40 | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 42 | $84 | 0.00% | +40+2,000.0% | Added |
| SJS Investment Consulting Inc. | 43 | $87 | 0.00% | +43 | New |
| Kingdom Financial Group LLC. | 48 | $96 | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 94 | $189 | 0.00% | +88+1,466.7% | Added |
| Wealth Enhancement Trust Services, Inc. | 105 | $211 | 0.00% | +105 | New |
| Clearstead Advisors, LLC | 125 | $252 | 0.00% | +125 | New |
| Fortitude Family Office, LLC | 134 | $269 | 0.00% | −121−47.5% | Reduced |
| National Bank of Canada | 200 | $400 | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 253 | $509 | 0.00% | +97+62.2% | Added |
| Mark Sheptoff Financial Planning, LLC | 300 | $603 | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 300 | $603 | 0.00% | +300 | New |
| Rockefeller Capital Management L.P. | 367 | $738 | 0.00% | 00.0% | Unchanged |
| Hughes Financial Services, LLC | 388 | $780 | 0.00% | −24−5.8% | Reduced |
| Bryn Mawr Trust Co | 400 | $804 | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 415 | $834 | 0.00% | 00.0% | Unchanged |
| Basecamp Wealth Advisors LLC | 446 | $896 | 0.00% | +117+35.6% | Added |
| Sterling Capital Management LLC | 523 | $1.05K | 0.00% | −2,283−81.4% | Reduced |
| Rothschild Investment LLC | 680 | $1.37K | 0.00% | +440+183.3% | Added |
| UMA Financial Services, Inc. | 752 | $1.51K | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 867 | $1.74K | 0.00% | +274+46.2% | Added |
| Optiver Holding B.V. | 925 | $1.86K | 0.00% | −776−45.6% | Reduced |
| Essential Partners LLC | 1,237 | $2.49K | 0.00% | −2,620−67.9% | Reduced |
| California State Teachers Retirement System | 1,274 | $2.56K | 0.00% | −3,620−74.0% | Reduced |
| EverSource Wealth Advisors, LLC | 1,309 | $2.63K | 0.00% | +422+47.6% | Added |
| Nisa Investment Advisors, LLC | 1,416 | $2.85K | 0.00% | +400+39.4% | Added |
| GAMMA Investing LLC | 1,523 | $3.06K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 2,479 | $4.98K | 0.00% | +1,852+295.4% | Added |
| China Universal Asset Management Co., Ltd. | 3,600 | $7.24K | 0.00% | +3,600 | New |
| SRS Capital Advisors, Inc. | 5,433 | $10.9K | 0.00% | +5,254+2,935.2% | Added |
| Ameritas Investment Partners, Inc. | 8,175 | $16.4K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 8,346 | $16.8K | 0.00% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 10,227 | $20.6K | 0.00% | −533−5.0% | Reduced |
| New York State Common Retirement Fund | 10,310 | $20.7K | 0.00% | 00.0% | Unchanged |
| Merit Financial Group, LLC | 11,243 | $22.6K | 0.00% | +315+2.9% | Added |
| Bronte Capital Management Pty Ltd. | 11,758 | $23.6K | 0.00% | −7,524−39.0% | Reduced |
| ProShare Advisors LLC | 12,848 | $25.8K | 0.00% | −340−2.6% | Reduced |
| Neuberger Berman Group LLC | 13,521 | $27.2K | 0.00% | −1,007−6.9% | Reduced |
| Quadrature Capital Ltd | 14,169 | $28.5K | 0.00% | −5,317−27.3% | Reduced |
| Hamilton Lane Advisors LLC | 14,400 | $28.9K | 0.02% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 14,450 | $29.0K | 0.00% | +8,507+143.1% | Added |
| Creative Planning | 15,015 | $30.2K | 0.00% | +15,015 | New |
| Prudential Financial Inc | 16,015 | $32.2K | 0.00% | −7,780−32.7% | Reduced |
| Captrust Financial Advisors | 16,037 | $32.2K | 0.00% | +5,389+50.6% | Added |
| Qube Research & Technologies Ltd | 16,569 | $33.3K | 0.00% | +16,569 | New |
| Manufacturers Life Insurance Company, The | 19,397 | $39.0K | 0.00% | −6,751−25.8% | Reduced |
| BNP Paribas Arbitrage, SA | 21,200 | $42.6K | 0.00% | +1,173+5.9% | Added |
| Voya Investment Management LLC | 21,898 | $44.0K | 0.00% | +6,420+41.5% | Added |
| Police & Firemen's Retirement System of New Jersey | 23,426 | $47.1K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 24,123 | $48.5K | 0.00% | −83,474−77.6% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 30,251 | $48.7K | 0.00% | +12,054+66.2% | Added |
| Intech Investment Management LLC | 24,530 | $49.3K | 0.00% | +576+2.4% | Added |
| Group One Trading, L.P. | 25,208 | $50.7K | 0.00% | +25,208 | New |
| Mercer Global Advisors Inc | 25,504 | $51.3K | 0.00% | +25,504 | New |
| Royal Bank of Canada | 26,122 | $53.0K | 0.00% | +19,075+270.7% | Added |
| Point72 Asset Management, L.P. | 26,699 | $53.7K | 0.00% | −53,392−66.7% | Reduced |
| Vontobel Holding Ltd. | 30,000 | $60.3K | 0.00% | 00.0% | Unchanged |
| Spears Abacus Advisors LLC | 30,342 | $61.0K | 0.00% | −24,300−44.5% | Reduced |
| Vanguard Global Advisers, LLC | 31,302 | $62.9K | 0.00% | 00.0% | Unchanged |
| Cerity Partners LLC | 32,521 | $65.4K | 0.00% | +5,545+20.6% | Added |
| Dimensional Fund Advisors LP | 33,728 | $68.0K | 0.00% | −250,089−88.1% | Reduced |
| Diversified Trust Co | 42,351 | $85.1K | 0.00% | +16,456+63.5% | Added |
| JPMorgan Chase & Co | 42,998 | $89.4K | 0.00% | +5,619+15.0% | Added |
| Barclays PLC | 44,957 | $90.4K | 0.00% | +2,366+5.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 45,190 | $90.8K | 0.00% | +2,529+5.9% | Added |
| Citigroup Inc | 46,275 | $93.0K | 0.00% | +41,636+897.5% | Added |
| Graham Capital Management, L.P. | 46,496 | $93.5K | 0.00% | +46,496 | New |
| HSBC Holdings PLC | 48,523 | $98.0K | 0.00% | 00.0% | Unchanged |
| JustInvest LLC | 49,445 | $99.4K | 0.00% | −1,184−2.3% | Reduced |
| Mariner, LLC | 52,709 | $106.0K | 0.00% | +33,910+180.4% | Added |
| MetLife Investment Management | 58,696 | $118.0K | 0.00% | +22,488+62.1% | Added |
| Verdad Advisers, LP | 60,509 | $121.6K | 0.12% | +36,955+156.9% | Added |
| Ieq Capital, LLC | 60,570 | $121.7K | 0.00% | +13,490+28.7% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 69,666 | $140.0K | 0.00% | 00.0% | Unchanged |
| SEI Investments Co | 71,151 | $143.0K | 0.00% | +17,305+32.1% | Added |
| Jasper Ridge Partners, L.P. | 73,531 | $147.8K | 0.00% | 00.0% | Unchanged |
| Blackstone Group Inc. | 77,145 | $155.1K | 0.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 81,655 | $165.0K | 0.00% | +25,555+45.6% | Added |
| Simplex Trading, LLC | 85,488 | $171.8K | 0.00% | +17,011+24.8% | Added |
| Wells Fargo & Company | 89,172 | $179.2K | 0.00% | +54,646+158.3% | Added |
| Russell Investments Group, Ltd. | 98,496 | $198.0K | 0.00% | +32,365+48.9% | Added |
| STRS Ohio | 101,600 | $204.2K | 0.00% | +15,100+17.5% | Added |
| Rhumbline Advisers | 109,532 | $220.1K | 0.00% | +8,205+8.1% | Added |
| Alliancebernstein L.P. | 108,940 | $234.2K | 0.00% | +16,000+17.2% | Added |
| Public Employees Retirement System of Ohio | 119,769 | $240.7K | 0.00% | −16,231−11.9% | Reduced |
| Morgan Stanley | 120,480 | $242.2K | 0.00% | −244,087−67.0% | Reduced |
| Canada Pension Plan Investment Board | 131,300 | $263.9K | 0.00% | −51,900−28.3% | Reduced |
| Bridgeway Capital Management, LLC | 142,500 | $286.4K | 0.01% | 00.0% | Unchanged |
| Bank of America Corp | 142,678 | $286.8K | 0.00% | −238,230−62.5% | Reduced |
| Utah Retirement Systems | 154,290 | $310.1K | 0.00% | 00.0% | Unchanged |
| Nuveen, LLC | 176,234 | $354.2K | 0.00% | +21,304+13.8% | Added |
| Nano Cap New Millennium Growth Fund L P | 200,000 | $402.0K | 0.31% | 00.0% | Unchanged |
| LMR Partners LLP | 200,000 | $402.0K | 0.00% | +200,000 | New |
| Ameriprise Financial Inc | 224,530 | $451.3K | 0.00% | −46,742−17.2% | Reduced |
| Bank of New York Mellon Corp | 250,093 | $502.7K | 0.00% | −2,204−0.9% | Reduced |
| Invesco Ltd. | 257,139 | $516.8K | 0.00% | −7,928−3.0% | Reduced |
| UBS Group AG | 273,780 | $550.3K | 0.00% | +128,436+88.4% | Added |
| Cantor Fitzgerald, L. P. | 295,492 | $593.9K | 0.01% | +295,492 | New |