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 |
|---|---|---|---|---|---|
| Neuberger Berman Group LLC | 13,521 | $27.2K | 0.00% | −1,007−6.9% | Reduced |
| ProShare Advisors LLC | 12,848 | $25.8K | 0.00% | −340−2.6% | Reduced |
| Bronte Capital Management Pty Ltd. | 11,758 | $23.6K | 0.00% | −7,524−39.0% | Reduced |
| Merit Financial Group, LLC | 11,243 | $22.6K | 0.00% | +315+2.9% | Added |
| New York State Common Retirement Fund | 10,310 | $20.7K | 0.00% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 10,227 | $20.6K | 0.00% | −533−5.0% | Reduced |
| Legal & General Group Plc | 8,346 | $16.8K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 8,175 | $16.4K | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 5,433 | $10.9K | 0.00% | +5,254+2,935.2% | Added |
| China Universal Asset Management Co., Ltd. | 3,600 | $7.24K | 0.00% | +3,600 | New |
| Allworth Financial LP | 2,479 | $4.98K | 0.00% | +1,852+295.4% | Added |
| GAMMA Investing LLC | 1,523 | $3.06K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 1,416 | $2.85K | 0.00% | +400+39.4% | Added |
| EverSource Wealth Advisors, LLC | 1,309 | $2.63K | 0.00% | +422+47.6% | Added |
| California State Teachers Retirement System | 1,274 | $2.56K | 0.00% | −3,620−74.0% | Reduced |
| Essential Partners LLC | 1,237 | $2.49K | 0.00% | −2,620−67.9% | Reduced |
| Optiver Holding B.V. | 925 | $1.86K | 0.00% | −776−45.6% | Reduced |
| True Wealth Design, LLC | 867 | $1.74K | 0.00% | +274+46.2% | Added |
| UMA Financial Services, Inc. | 752 | $1.51K | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 680 | $1.37K | 0.00% | +440+183.3% | Added |
| Sterling Capital Management LLC | 523 | $1.05K | 0.00% | −2,283−81.4% | Reduced |
| Basecamp Wealth Advisors LLC | 446 | $896 | 0.00% | +117+35.6% | Added |
| Federation des caisses Desjardins du Quebec | 415 | $834 | 0.00% | 00.0% | Unchanged |
| Bryn Mawr Trust Co | 400 | $804 | 0.00% | 00.0% | Unchanged |
| Hughes Financial Services, LLC | 388 | $780 | 0.00% | −24−5.8% | Reduced |
| Rockefeller Capital Management L.P. | 367 | $738 | 0.00% | 00.0% | Unchanged |
| Mark Sheptoff Financial Planning, LLC | 300 | $603 | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 300 | $603 | 0.00% | +300 | New |
| Farther Finance Advisors, LLC | 253 | $509 | 0.00% | +97+62.2% | Added |
| National Bank of Canada | 200 | $400 | 0.00% | 00.0% | Unchanged |
| Fortitude Family Office, LLC | 134 | $269 | 0.00% | −121−47.5% | Reduced |
| Clearstead Advisors, LLC | 125 | $252 | 0.00% | +125 | New |
| Wealth Enhancement Trust Services, Inc. | 105 | $211 | 0.00% | +105 | New |
| IFP Advisors, Inc | 94 | $189 | 0.00% | +88+1,466.7% | Added |
| Kingdom Financial Group LLC. | 48 | $96 | 0.00% | 00.0% | Unchanged |
| SJS Investment Consulting Inc. | 43 | $87 | 0.00% | +43 | New |
| Caitong International Asset Management Co., Ltd | 42 | $84 | 0.00% | +40+2,000.0% | Added |
| SBI Securities Co., Ltd. | 20 | $40 | 0.00% | 00.0% | Unchanged |
| JPL Wealth Management, LLC | 18 | $37 | 0.00% | +18 | New |
| Fifth Third Bancorp | 6 | $12 | 0.00% | 00.0% | Unchanged |
| Foresite Capital Management IV, LLC | 0 | $0 | 0.00% | −3,887,200−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −399,464−100.0% | Sold out |
| Odyssean, LLC | 0 | $0 | 0.00% | −89,783−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −78,207−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −1,645−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −305−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −271−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −67−100.0% | Sold out |
| Lloyd Advisory Services, LLC. | 0 | $0 | 0.00% | −48−100.0% | Sold out |
| CWM, LLC | – | – | – | – | Not filed |
| Sunbelt Securities, Inc. | – | – | – | – | Not filed |