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, Q1 2022
Institutional positions in Alector, Inc. as of Mar 31, 2022. 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
- 166
- −1 vs. Q4 2021
- Shares held
- 55.4M
- +671.5K (+1.2%) vs. Q4 2021
- Total value
- $789.8M
- −$340.4M (−30.1%) vs. Q4 2021
- New holders
- 20
- 59 more added
- Sold out
- 21
- 52 more reduced
Compare with Q4 2021: 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, Q1 2022
Shares, value and share of portfolio for each institution holding Alector, Inc.; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Federated Hermes, Inc. | 5,931,034 | $84.5M | 0.19% | +650,187+12.3% | Added |
| EcoR1 Capital, LLC | 5,738,448 | $81.8M | 2.56% | +743,478+14.9% | Added |
| Vanguard Group Inc | 5,443,923 | $77.6M | 0.00% | −96,317−1.7% | Reduced |
| BlackRock Inc. | 5,369,985 | $76.5M | 0.00% | −10,424−0.2% | Reduced |
| FMR LLC | 4,655,078 | $66.3M | 0.01% | +40,350+0.9% | Added |
| State Street Corp | 3,836,093 | $54.7M | 0.00% | +772,398+25.2% | Added |
| JPMorgan Chase & Co | 2,455,567 | $35.0M | 0.00% | −71,068−2.8% | Reduced |
| Franklin Resources Inc | 2,224,025 | $31.7M | 0.01% | −37,778−1.7% | Reduced |
| Price T Rowe Associates Inc | 1,890,908 | $26.9M | 0.00% | +14,060+0.7% | Added |
| Millennium Management LLC | 1,140,089 | $16.2M | 0.02% | +748,883+191.4% | Added |
| Geode Capital Management, LLC | 1,076,289 | $15.3M | 0.00% | +14,528+1.4% | Added |
| Deerfield Management Company, L.P. (Series C) | 1,055,192 | $15.0M | 0.34% | 00.0% | Unchanged |
| Euclidean Capital LLC | 980,894 | $14.0M | 8.12% | 00.0% | Unchanged |
| Rubric Capital Management LP | 900,000 | $12.8M | 0.60% | +900,000 | New |
| Renaissance Technologies LLC | 705,780 | $10.1M | 0.01% | +432,300+158.1% | Added |
| Morgan Stanley | 616,616 | $8.79M | 0.00% | −1,321,644−68.2% | Reduced |
| Northern Trust Corp | 584,474 | $8.33M | 0.00% | −17,512−2.9% | Reduced |
| Norges Bank | 525,956 | $7.49M | 0.00% | +351,919+202.2% | Added |
| Marshall Wace, LLP | 511,140 | $7.28M | 0.02% | −569,714−52.7% | Reduced |
| Schroder Investment Management Group | 470,037 | $6.82M | 0.01% | +218,041+86.5% | Added |
| Charles Schwab Investment Management Inc | 422,696 | $6.02M | 0.00% | +9,928+2.4% | Added |
| Baillie Gifford & Co | 392,351 | $5.59M | 0.00% | +32,627+9.1% | Added |
| Dimensional Fund Advisors LP | 386,087 | $5.50M | 0.00% | +226,182+141.4% | Added |
| New Leaf Venture Partners, L.L.C. | 339,569 | $4.84M | 2.38% | 00.0% | Unchanged |
| Bank of America Corp | 332,652 | $4.74M | 0.00% | −78,356−19.1% | Reduced |
| DAFNA Capital Management LLC | 292,747 | $4.17M | 1.09% | +137,500+88.6% | Added |
| Two Sigma Investments, LP | 280,815 | $4.00M | 0.01% | −67,072−19.3% | Reduced |
| Pier Capital, LLC | 278,618 | $3.97M | 0.51% | −27,303−8.9% | Reduced |
| Nuveen Asset Management, LLC | 269,498 | $3.95M | 0.00% | −117,093−30.3% | Reduced |
| Two Sigma Advisers, LP | 270,300 | $3.85M | 0.01% | −13,100−4.6% | Reduced |
| Goldman Sachs Group Inc | 241,143 | $3.44M | 0.00% | −162,179−40.2% | Reduced |
| Baker Bros. Advisors LP | 239,228 | $3.41M | 0.02% | 00.0% | Unchanged |
| Rafferty Asset Management, LLC | 227,904 | $3.25M | 0.02% | +48,317+26.9% | Added |
| UBS Group AG | 221,788 | $3.16M | 0.00% | +54,438+32.5% | Added |
| Bank of New York Mellon Corp | 206,696 | $2.94M | 0.00% | +1,983+1.0% | Added |
| Gilder Gagnon Howe & Co LLC | 184,272 | $2.63M | 0.02% | −462,691−71.5% | Reduced |
| Nordea Investment Management AB | 177,493 | $2.61M | 0.00% | +158,066+813.6% | Added |
| Alphabet Inc. | 175,866 | $2.51M | 0.08% | 00.0% | Unchanged |
| AQR Capital Management LLC | 166,288 | $2.37M | 0.00% | +75,712+83.6% | Added |
| Massachusetts Financial Services Co | 156,262 | $2.23M | 0.00% | +123,489+376.8% | Added |
| American Century Companies Inc | 140,887 | $2.01M | 0.00% | +64,589+84.7% | Added |
| Alliancebernstein L.P. | 137,700 | $1.96M | 0.00% | −23,517−14.6% | Reduced |
| Cannell Peter B & Co Inc | 134,272 | $1.91M | 0.06% | −325−0.2% | Reduced |
| Swiss National Bank | 124,900 | $1.78M | 0.00% | +9,200+8.0% | Added |
| Cubist Systematic Strategies, LLC | 121,750 | $1.74M | 0.01% | +34,309+39.2% | Added |
| First Trust Advisors LP | 117,381 | $1.67M | 0.00% | −25,836−18.0% | Reduced |
| Putnam Investments LLC | 110,261 | $1.57M | 0.00% | +47,287+75.1% | Added |
| Platinum Investment Management Ltd | 105,614 | $1.50M | 0.05% | +40,234+61.5% | Added |
| Citadel Advisors LLC | 104,943 | $1.50M | 0.00% | +74,002+239.2% | Added |
| Tang Capital Management LLC | 100,000 | $1.43M | 0.29% | +100,000 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 96,610 | $1.38M | 0.01% | +13,480+16.2% | Added |
| Nantahala Capital Management, LLC | 94,779 | $1.35M | 0.09% | +94,779 | New |
| Alps Advisors Inc | 84,265 | $1.20M | 0.01% | −9,791−10.4% | Reduced |
| Raymond James & Associates | 77,600 | $1.11M | 0.00% | +77,600 | New |
| Swedbank AB | 75,900 | $1.08M | 0.00% | +75,900 | New |
| Qube Research & Technologies Ltd | 75,236 | $1.07M | 0.01% | +46,975+166.2% | Added |
| State of Wisconsin Investment Board | 75,100 | $1.07M | 0.00% | −16,000−17.6% | Reduced |
| California State Teachers Retirement System | 69,944 | $997.0K | 0.00% | −6,463−8.5% | Reduced |
| UBS Asset Management Americas Inc | 69,376 | $988.6K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 67,618 | $964.0K | 0.00% | −112,864−62.5% | Reduced |
| Wells Fargo & Company | 67,036 | $955.0K | 0.00% | −17,794−21.0% | Reduced |
| Ameriprise Financial Inc | 65,880 | $939.0K | 0.00% | −15,928−19.5% | Reduced |
| Allspring Global Investments Holdings, LLC | 62,948 | $897.0K | 0.00% | −233,940−78.8% | Reduced |
| Group One Trading, L.P. | 61,998 | $883.0K | 0.02% | +61,800+31,212.1% | Added |
| Deutsche Bank AG | 61,547 | $877.0K | 0.00% | −3,773−5.8% | Reduced |
| Rhumbline Advisers | 61,472 | $876.0K | 0.00% | +1,753+2.9% | Added |
| Manufacturers Life Insurance Company, The | 60,625 | $872.9K | 0.00% | +30,358+100.3% | Added |
| STRS Ohio | 61,200 | $872.0K | 0.00% | +18,900+44.7% | Added |
| TD Asset Management Inc | 59,857 | $853.0K | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 50,877 | $726.0K | 0.00% | +23,934+88.8% | Added |
| Legal & General Group Plc | 50,245 | $716.0K | 0.00% | +494+1.0% | Added |
| Capital Impact Advisors, LLC | 49,158 | $701.0K | 0.51% | +21,239+76.1% | Added |
| HRT Financial LP | 48,673 | $693.0K | 0.00% | +22,054+82.9% | Added |
| Citigroup Inc | 44,987 | $641.0K | 0.00% | −113,232−71.6% | Reduced |
| SG Americas Securities, LLC | 42,811 | $610.0K | 0.01% | −10,632−19.9% | Reduced |
| New York State Common Retirement Fund | 41,505 | $591.0K | 0.00% | +24+0.1% | Added |
| Credit Suisse AG | 41,180 | $587.0K | 0.00% | +2,931+7.7% | Added |
| ExodusPoint Capital Management, LP | 38,267 | $545.0K | 0.01% | −7,675−16.7% | Reduced |
| Truist Financial Corp | 37,995 | $541.0K | 0.00% | +3,469+10.0% | Added |
| Trexquant Investment LP | 37,831 | $539.0K | 0.03% | +19,833+110.2% | Added |
| Engineers Gate Manager LP | 35,336 | $504.0K | 0.02% | +35,336 | New |
| Acadian Asset Management LLC | 33,655 | $478.0K | 0.00% | −7,292−17.8% | Reduced |
| Algert Global LLC | 32,452 | $462.0K | 0.03% | +32,452 | New |
| Dynamic Technology Lab Private Ltd | 31,931 | $455.0K | 0.05% | −7,055−18.1% | Reduced |
| MetLife Investment Management | 31,825 | $453.5K | 0.00% | +11,276+54.9% | Added |
| Wellington Management Group LLP | 31,544 | $450.0K | 0.00% | +708+2.3% | Added |
| Los Angeles Capital Management LLC | 29,424 | $419.0K | 0.00% | +29,424 | New |
| Panagora Asset Management Inc | 29,286 | $417.0K | 0.00% | +14,599+99.4% | Added |
| American International Group, Inc. | 29,000 | $413.0K | 0.00% | −2,041−6.6% | Reduced |
| AlphaCrest Capital Management LLC | 28,362 | $404.0K | 0.02% | +28,362 | New |
| PDT Partners, LLC | 27,696 | $395.0K | 0.03% | −28,696−50.9% | Reduced |
| Jane Street Group, LLC | 26,133 | $372.0K | 0.00% | −6,610−20.2% | Reduced |
| DekaBank Deutsche Girozentrale | 25,100 | $364.0K | 0.00% | +2,300+10.1% | Added |
| State Board of Administration of Florida Retirement System | 25,380 | $362.0K | 0.00% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 25,231 | $360.0K | 0.00% | −40,098−61.4% | Reduced |
| NinePointTwo Capital | 24,656 | $351.0K | 0.09% | +24,656 | New |
| Oppenheimer & Co Inc | 24,100 | $344.0K | 0.01% | 00.0% | Unchanged |
| Voya Investment Management LLC | 22,866 | $326.0K | 0.00% | 00.0% | Unchanged |
| First Manhattan Co | 22,610 | $322.0K | 0.00% | 00.0% | Unchanged |
| Stifel Financial Corp | 21,175 | $302.0K | 0.00% | +500+2.4% | Added |