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 2024
Institutional positions in Alector, Inc. as of Jun 30, 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
- 160
- +5 vs. Q1 2024
- Shares held
- 72.8M
- −1.30M (−1.8%) vs. Q1 2024
- Total value
- $330.4M
- −$115.6M (−25.9%) vs. Q1 2024
- New holders
- 24
- 58 more added
- Sold out
- 19
- 50 more reduced
2 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2024: 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 2024
Shares, value and share of portfolio for each institution holding Alector, Inc.; share changes are against Q1 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| UBS Group AG | 105,685 | $479.8K | 0.00% | −123,801−53.9% | Reduced |
| Rhumbline Advisers | 109,924 | $499.0K | 0.00% | +18,398+20.1% | Added |
| TD Asset Management Inc | 111,738 | $507.3K | 0.00% | 00.0% | Unchanged |
| Massachusetts Financial Services Co | 112,920 | $512.7K | 0.00% | +3,790+3.5% | Added |
| Jane Street Group, LLC | 124,762 | $566.4K | 0.00% | +88,286+242.0% | Added |
| Manufacturers Life Insurance Company, The | 124,819 | $566.7K | 0.00% | +6,825+5.8% | Added |
| Susquehanna Fundamental Investments, LLC | 129,664 | $588.7K | 0.01% | +3,500+2.8% | Added |
| ExodusPoint Capital Management, LP | 130,058 | $590.0K | 0.01% | +130,058 | New |
| Swiss National Bank | 131,900 | $598.8K | 0.00% | 00.0% | Unchanged |
| Trexquant Investment LP | 146,559 | $665.4K | 0.01% | +104,115+245.3% | Added |
| UBS Asset Management Americas Inc | 153,981 | $699.1K | 0.00% | +79,926+107.9% | Added |
| Nordea Investment Management AB | 159,999 | $707.2K | 0.00% | −28,768−15.2% | Reduced |
| Victory Capital Management Inc | 156,234 | $709.3K | 0.00% | +27,094+21.0% | Added |
| Millennium Management LLC | 156,780 | $711.8K | 0.00% | +54,578+53.4% | Added |
| Medici Capital LLC | 167,191 | $759.0K | 1.67% | −18,738−10.1% | Reduced |
| Alphabet Inc. | 175,866 | $798.4K | 0.04% | 00.0% | Unchanged |
| AQR Capital Management LLC | 184,511 | $837.7K | 0.00% | −5,699−3.0% | Reduced |
| ADAR1 Capital Management, LLC | 195,311 | $886.7K | 0.18% | +142,811+272.0% | Added |
| Stifel Financial Corp | 214,011 | $971.6K | 0.00% | +67,323+45.9% | Added |
| Jupiter Asset Management Ltd | 232,219 | $1.05M | 0.01% | 00.0% | Unchanged |
| Alyeska Investment Group, L.P. | 256,182 | $1.16M | 0.01% | 00.0% | Unchanged |
| Baillie Gifford & Co | 260,442 | $1.18M | 0.00% | −62,387−19.3% | Reduced |
| Nuveen Asset Management, LLC | 269,100 | $1.22M | 0.00% | −70,784−20.8% | Reduced |
| Walleye Capital LLC | 278,272 | $1.26M | 0.01% | +25,464+10.1% | Added |
| Bank of New York Mellon Corp | 279,938 | $1.27M | 0.00% | +49,625+21.5% | Added |
| Two Sigma Investments, LP | 302,138 | $1.37M | 0.00% | −62,491−17.1% | Reduced |
| New Leaf Venture Partners, L.L.C. | 339,569 | $1.54M | 1.87% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 352,243 | $1.60M | 0.00% | +22,618+6.9% | Added |
| Panagora Asset Management Inc | 355,318 | $1.61M | 0.01% | +135,614+61.7% | Added |
| Bank of America Corp | 359,385 | $1.63M | 0.00% | +5,734+1.6% | Added |
| Goldman Sachs Group Inc | 388,395 | $1.76M | 0.00% | +69,130+21.7% | Added |
| Two Sigma Advisers, LP | 479,700 | $2.18M | 0.00% | −59,800−11.1% | Reduced |
| Verition Fund Management LLC | 538,163 | $2.44M | 0.02% | −714,866−57.1% | Reduced |
| Eversept Partners, LP | 541,739 | $2.46M | 0.19% | +5,568+1.0% | Added |
| Acadian Asset Management LLC | 590,662 | $2.68M | 0.01% | +146,015+32.8% | Added |
| Sphera Funds Management Ltd. | 610,000 | $2.77M | 0.45% | +50,000+8.9% | Added |
| Point72 Asset Management, L.P. | 614,385 | $2.79M | 0.01% | −80,915−11.6% | Reduced |
| Northern Trust Corp | 648,728 | $2.95M | 0.00% | −21,495−3.2% | Reduced |
| Renaissance Technologies LLC | 655,050 | $2.97M | 0.01% | −20,433−3.0% | Reduced |
| Charles Schwab Investment Management Inc | 666,461 | $3.03M | 0.00% | −8,329−1.2% | Reduced |
| Dimensional Fund Advisors LP | 676,076 | $3.07M | 0.00% | −169,888−20.1% | Reduced |
| Alliancebernstein L.P. | 766,973 | $3.48M | 0.00% | +41,287+5.7% | Added |
| Jacobs Levy Equity Management, Inc | 858,576 | $3.90M | 0.02% | −64,223−7.0% | Reduced |
| Price T Rowe Associates Inc | 869,578 | $3.95M | 0.00% | −20,916−2.3% | Reduced |
| DAFNA Capital Management LLC | 912,928 | $4.14M | 0.99% | 00.0% | Unchanged |
| Baker Bros. Advisors LP | 927,264 | $4.21M | 0.05% | +927,264 | New |
| Franklin Resources Inc | 963,369 | $4.37M | 0.00% | +3,845+0.4% | Added |
| Deerfield Management Company, L.P. (Series C) | 1,148,326 | $5.21M | 0.09% | +75,481+7.0% | Added |
| Euclidean Capital LLC | 1,307,858 | $5.94M | 0.75% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 1,656,525 | $7.52M | 0.00% | −59,239−3.5% | Reduced |
| Geode Capital Management, LLC | 1,755,585 | $7.97M | 0.00% | +179,815+11.4% | Added |
| Deutsche Bank AG | 2,228,281 | $10.1M | 0.00% | −414,586−15.7% | Reduced |
| Soleus Capital Management, L.P. | 2,239,006 | $10.2M | 0.90% | +2,239,006 | New |
| Braidwell LP | 2,380,704 | $10.8M | 0.34% | 00.0% | Unchanged |
| State Street Corp | 2,789,877 | $12.7M | 0.00% | −1,125,292−28.7% | Reduced |
| Morgan Stanley | 3,005,073 | $13.6M | 0.00% | −299,903−9.1% | Reduced |
| Deep Track Capital, LP | 4,631,998 | $21.0M | 0.63% | +862,612+22.9% | Added |
| Vanguard Group Inc | 5,320,970 | $24.2M | 0.00% | +408,392+8.3% | Added |
| BlackRock Inc. | 9,101,437 | $41.3M | 0.00% | +617,872+7.3% | Added |
| FMR LLC | 14,457,220 | $65.6M | 0.00% | +94,832+0.7% | Added |
| EcoR1 Capital, LLC | 0 | $0 | 0.00% | −4,056,548−100.0% | Sold out |
| Woodline Partners LP | 0 | $0 | 0.00% | −190,000−100.0% | Sold out |
| BIT Capital GmbH | 0 | $0 | 0.00% | −141,372−100.0% | Sold out |
| New York Life Investment Management LLC | 0 | $0 | 0.00% | −59,829−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −39,284−100.0% | Sold out |
| American International Group, Inc. | 0 | $0 | 0.00% | −35,655−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −31,169−100.0% | Sold out |
| Capital Impact Advisors, LLC | 0 | $0 | 0.00% | −24,562−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −18,789−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −15,925−100.0% | Sold out |
| E Fund Management Co., Ltd. | 0 | $0 | 0.00% | −13,025−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −12,002−100.0% | Sold out |
| Mackenzie Financial Corp | 0 | $0 | 0.00% | −10,582−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −9,833−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −9,500−100.0% | Sold out |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −6,674−100.0% | Sold out |
| Metropolitan Life Insurance Co | 0 | $0 | 0.00% | −3,430−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −91−100.0% | Sold out |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| Credit Suisse AG | – | – | – | – | Not filed |
| Shell Asset Management Co | – | – | – | – | Not filed |