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, Q4 2024
Institutional positions in Alector, Inc. as of Dec 31, 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
- 150
- −8 vs. Q3 2024
- Shares held
- 73.4M
- +913.9K (+1.3%) vs. Q3 2024
- Total value
- $138.8M
- −$199.5M (−59.0%) vs. Q3 2024
- New holders
- 31
- 46 more added
- Sold out
- 39
- 38 more reduced
1 institution that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2024
Shares, value and share of portfolio for each institution holding Alector, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Nordea Investment Management AB | 165,713 | $295.0K | 0.00% | +7,971+5.1% | Added |
| UBS Asset Management Americas Inc | 160,570 | $303.5K | 0.00% | +17,509+12.2% | Added |
| BNP Paribas Arbitrage, SA | 165,589 | $313.0K | 0.00% | +145,469+723.0% | Added |
| Medici Capital LLC | 167,191 | $316.0K | 0.41% | 00.0% | Unchanged |
| Alphabet Inc. | 175,866 | $332.4K | 0.02% | 00.0% | Unchanged |
| Barclays PLC | 176,569 | $333.7K | 0.00% | −231−0.1% | Reduced |
| Nuveen Asset Management, LLC | 187,042 | $353.5K | 0.00% | −73,064−28.1% | Reduced |
| Susquehanna International Group, LLP | 199,762 | $377.6K | 0.00% | +123,222+161.0% | Added |
| Eversept Partners, LP | 200,095 | $378.2K | 0.04% | −132,661−39.9% | Reduced |
| Bank of New York Mellon Corp | 230,729 | $436.1K | 0.00% | +4,620+2.0% | Added |
| Diadema Partners LP | 239,019 | $451.7K | 0.51% | +239,019 | New |
| Jane Street Group, LLC | 244,933 | $462.9K | 0.00% | +89,991+58.1% | Added |
| Almitas Capital LLC | 284,845 | $538.4K | 0.12% | +284,845 | New |
| Boothbay Fund Management, LLC | 294,156 | $556.0K | 0.02% | +294,156 | New |
| Bank of America Corp | 318,648 | $602.2K | 0.00% | −44,252−12.2% | Reduced |
| Sphera Funds Management Ltd. | 324,639 | $613.6K | 0.11% | −295,361−47.6% | Reduced |
| New Leaf Venture Partners, L.L.C. | 339,569 | $641.8K | 0.86% | 00.0% | Unchanged |
| ADAR1 Capital Management, LLC | 368,330 | $696.1K | 0.14% | −60,472−14.1% | Reduced |
| D. E. Shaw & Co., Inc. | 368,977 | $697.4K | 0.00% | +177,985+93.2% | Added |
| Panagora Asset Management Inc | 369,079 | $697.6K | 0.00% | −13,330−3.5% | Reduced |
| Two Sigma Investments, LP | 407,989 | $771.1K | 0.00% | +145,467+55.4% | Added |
| Goldman Sachs Group Inc | 409,076 | $773.2K | 0.00% | −102,217−20.0% | Reduced |
| Citadel Advisors LLC | 424,971 | $803.2K | 0.00% | +229,187+117.1% | Added |
| Two Sigma Advisers, LP | 429,900 | $812.5K | 0.00% | +35,000+8.9% | Added |
| AQR Capital Management LLC | 562,936 | $1.06M | 0.00% | +354,935+170.6% | Added |
| Sio Capital Management, LLC | 615,628 | $1.16M | 0.33% | +615,628 | New |
| Charles Schwab Investment Management Inc | 643,456 | $1.22M | 0.00% | −117,150−15.4% | Reduced |
| Morgan Stanley | 650,541 | $1.23M | 0.00% | −3,705,229−85.1% | Reduced |
| Price T Rowe Associates Inc | 746,088 | $1.41M | 0.00% | −70,370−8.6% | Reduced |
| Northern Trust Corp | 759,874 | $1.44M | 0.00% | +40,291+5.6% | Added |
| Dimensional Fund Advisors LP | 882,120 | $1.67M | 0.00% | +157,231+21.7% | Added |
| DAFNA Capital Management LLC | 912,928 | $1.73M | 0.44% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 915,738 | $1.73M | 0.00% | +353,988+63.0% | Added |
| Franklin Resources Inc | 930,534 | $1.76M | 0.00% | −32,950−3.4% | Reduced |
| Ikarian Capital, LLC | 950,000 | $1.80M | 0.51% | +950,000 | New |
| 5AM Venture Management, LLC | 995,841 | $1.88M | 0.45% | +995,841 | New |
| Acadian Asset Management LLC | 1,030,456 | $1.94M | 0.01% | +290,221+39.2% | Added |
| Jacobs Levy Equity Management, Inc | 1,059,691 | $2.00M | 0.01% | +42,004+4.1% | Added |
| Deerfield Management Company, L.P. (Series C) | 1,066,962 | $2.02M | 0.04% | +11,770+1.1% | Added |
| Deutsche Bank AG | 1,106,287 | $2.09M | 0.00% | −48,050−4.2% | Reduced |
| Euclidean Capital LLC | 1,307,858 | $2.47M | 0.34% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 1,642,570 | $3.10M | 0.00% | −1,086,253−39.8% | Reduced |
| State Street Corp | 1,849,295 | $3.50M | 0.00% | −767,514−29.3% | Reduced |
| Geode Capital Management, LLC | 1,914,250 | $3.62M | 0.00% | +10,308+0.5% | Added |
| Merck & Co., Inc. | 3,545,719 | $6.70M | 2.60% | +3,545,719 | New |
| Vanguard Group Inc | 5,616,379 | $10.6M | 0.00% | +160,652+2.9% | Added |
| BlackRock, Inc. | 9,136,747 | $17.3M | 0.00% | −215,297−2.3% | Reduced |
| Ra Capital Management, L.P. | 9,695,228 | $18.3M | 0.24% | +9,695,228 | New |
| FMR LLC | 14,689,865 | $27.8M | 0.00% | +94,851+0.6% | Added |
| IFP Advisors, Inc | 4 | – | – | +4 | New |
| Deep Track Capital, LP | 0 | $0 | 0.00% | −4,631,998−100.0% | Sold out |
| Braidwell LP | 0 | $0 | 0.00% | −2,158,245−100.0% | Sold out |
| Soleus Capital Management, L.P. | 0 | $0 | 0.00% | −1,207,371−100.0% | Sold out |
| Baker Bros. Advisors LP | 0 | $0 | 0.00% | −927,264−100.0% | Sold out |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −656,182−100.0% | Sold out |
| Artia Global Partners LP | 0 | $0 | 0.00% | −193,317−100.0% | Sold out |
| Victory Capital Management Inc | 0 | $0 | 0.00% | −186,747−100.0% | Sold out |
| Stifel Financial Corp | 0 | $0 | 0.00% | −179,296−100.0% | Sold out |
| Massachusetts Financial Services Co | 0 | $0 | 0.00% | −174,718−100.0% | Sold out |
| Wellington Management Group LLP | 0 | $0 | 0.00% | −137,152−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −102,463−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −84,538−100.0% | Sold out |
| Baillie Gifford & Co | 0 | $0 | 0.00% | −78,835−100.0% | Sold out |
| Rafferty Asset Management, LLC | 0 | $0 | 0.00% | −72,750−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −46,344−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | −44,649−100.0% | Sold out |
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −43,751−100.0% | Sold out |
| Amundi | 0 | $0 | 0.00% | −31,790−100.0% | Sold out |
| Corton Capital Inc. | 0 | $0 | 0.00% | −23,237−100.0% | Sold out |
| Creative Planning | 0 | $0 | 0.00% | −19,117−100.0% | Sold out |
| Virtus ETF Advisers LLC | 0 | $0 | 0.00% | −18,697−100.0% | Sold out |
| Profund Advisors LLC | 0 | $0 | 0.00% | −15,450−100.0% | Sold out |
| Valence8 US LP | 0 | $0 | 0.00% | −14,708−100.0% | Sold out |
| Truist Financial Corp | 0 | $0 | 0.00% | −14,425−100.0% | Sold out |
| Cornercap Investment Counsel Inc | 0 | $0 | 0.00% | −11,767−100.0% | Sold out |
| nVerses Capital, LLC | 0 | $0 | 0.00% | −11,000−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −10,852−100.0% | Sold out |
| Point72 Asia (Singapore) Pte. Ltd. | 0 | $0 | 0.00% | −8,676−100.0% | Sold out |
| Point72 (DIFC) Ltd | 0 | $0 | 0.00% | −6,148−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −2,000−100.0% | Sold out |
| GAMMA Investing LLC | 0 | $0 | 0.00% | −438−100.0% | Sold out |
| Capital Performance Advisors LLP | 0 | $0 | 0.00% | −243−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −233−100.0% | Sold out |
| Lindbrook Capital, LLC | 0 | $0 | 0.00% | −217−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −140−100.0% | Sold out |
| Motco | 0 | $0 | 0.00% | −125−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −84−100.0% | Sold out |
| Northwestern Mutual Wealth Management Co | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Parallel Advisors, LLC | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| AJOVista, LLC | – | – | – | – | Not filed |