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 |
|---|---|---|---|---|---|
| Rhumbline Advisers | 61,472 | $876.0K | 0.00% | +1,753+2.9% | Added |
| Deutsche Bank AG | 61,547 | $877.0K | 0.00% | −3,773−5.8% | Reduced |
| Group One Trading, L.P. | 61,998 | $883.0K | 0.02% | +61,800+31,212.1% | Added |
| Allspring Global Investments Holdings, LLC | 62,948 | $897.0K | 0.00% | −233,940−78.8% | Reduced |
| Ameriprise Financial Inc | 65,880 | $939.0K | 0.00% | −15,928−19.5% | Reduced |
| Wells Fargo & Company | 67,036 | $955.0K | 0.00% | −17,794−21.0% | Reduced |
| Susquehanna International Group, LLP | 67,618 | $964.0K | 0.00% | −112,864−62.5% | Reduced |
| UBS Asset Management Americas Inc | 69,376 | $988.6K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 69,944 | $997.0K | 0.00% | −6,463−8.5% | Reduced |
| State of Wisconsin Investment Board | 75,100 | $1.07M | 0.00% | −16,000−17.6% | Reduced |
| Qube Research & Technologies Ltd | 75,236 | $1.07M | 0.01% | +46,975+166.2% | Added |
| Swedbank AB | 75,900 | $1.08M | 0.00% | +75,900 | New |
| Raymond James & Associates | 77,600 | $1.11M | 0.00% | +77,600 | New |
| Alps Advisors Inc | 84,265 | $1.20M | 0.01% | −9,791−10.4% | Reduced |
| Nantahala Capital Management, LLC | 94,779 | $1.35M | 0.09% | +94,779 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 96,610 | $1.38M | 0.01% | +13,480+16.2% | Added |
| Tang Capital Management LLC | 100,000 | $1.43M | 0.29% | +100,000 | New |
| Citadel Advisors LLC | 104,943 | $1.50M | 0.00% | +74,002+239.2% | Added |
| Platinum Investment Management Ltd | 105,614 | $1.50M | 0.05% | +40,234+61.5% | Added |
| Putnam Investments LLC | 110,261 | $1.57M | 0.00% | +47,287+75.1% | Added |
| First Trust Advisors LP | 117,381 | $1.67M | 0.00% | −25,836−18.0% | Reduced |
| Cubist Systematic Strategies, LLC | 121,750 | $1.74M | 0.01% | +34,309+39.2% | Added |
| Swiss National Bank | 124,900 | $1.78M | 0.00% | +9,200+8.0% | Added |
| Cannell Peter B & Co Inc | 134,272 | $1.91M | 0.06% | −325−0.2% | Reduced |
| Alliancebernstein L.P. | 137,700 | $1.96M | 0.00% | −23,517−14.6% | Reduced |
| American Century Companies Inc | 140,887 | $2.01M | 0.00% | +64,589+84.7% | Added |
| Massachusetts Financial Services Co | 156,262 | $2.23M | 0.00% | +123,489+376.8% | Added |
| AQR Capital Management LLC | 166,288 | $2.37M | 0.00% | +75,712+83.6% | Added |
| Alphabet Inc. | 175,866 | $2.51M | 0.08% | 00.0% | Unchanged |
| Nordea Investment Management AB | 177,493 | $2.61M | 0.00% | +158,066+813.6% | Added |
| Gilder Gagnon Howe & Co LLC | 184,272 | $2.63M | 0.02% | −462,691−71.5% | Reduced |
| Bank of New York Mellon Corp | 206,696 | $2.94M | 0.00% | +1,983+1.0% | Added |
| UBS Group AG | 221,788 | $3.16M | 0.00% | +54,438+32.5% | Added |
| Rafferty Asset Management, LLC | 227,904 | $3.25M | 0.02% | +48,317+26.9% | Added |
| Baker Bros. Advisors LP | 239,228 | $3.41M | 0.02% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 241,143 | $3.44M | 0.00% | −162,179−40.2% | Reduced |
| Two Sigma Advisers, LP | 270,300 | $3.85M | 0.01% | −13,100−4.6% | Reduced |
| Nuveen Asset Management, LLC | 269,498 | $3.95M | 0.00% | −117,093−30.3% | Reduced |
| Pier Capital, LLC | 278,618 | $3.97M | 0.51% | −27,303−8.9% | Reduced |
| Two Sigma Investments, LP | 280,815 | $4.00M | 0.01% | −67,072−19.3% | Reduced |
| DAFNA Capital Management LLC | 292,747 | $4.17M | 1.09% | +137,500+88.6% | Added |
| Bank of America Corp | 332,652 | $4.74M | 0.00% | −78,356−19.1% | Reduced |
| New Leaf Venture Partners, L.L.C. | 339,569 | $4.84M | 2.38% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 386,087 | $5.50M | 0.00% | +226,182+141.4% | Added |
| Baillie Gifford & Co | 392,351 | $5.59M | 0.00% | +32,627+9.1% | Added |
| Charles Schwab Investment Management Inc | 422,696 | $6.02M | 0.00% | +9,928+2.4% | Added |
| Schroder Investment Management Group | 470,037 | $6.82M | 0.01% | +218,041+86.5% | Added |
| Marshall Wace, LLP | 511,140 | $7.28M | 0.02% | −569,714−52.7% | Reduced |
| Norges Bank | 525,956 | $7.49M | 0.00% | +351,919+202.2% | Added |
| Northern Trust Corp | 584,474 | $8.33M | 0.00% | −17,512−2.9% | Reduced |
| Morgan Stanley | 616,616 | $8.79M | 0.00% | −1,321,644−68.2% | Reduced |
| Renaissance Technologies LLC | 705,780 | $10.1M | 0.01% | +432,300+158.1% | Added |
| Rubric Capital Management LP | 900,000 | $12.8M | 0.60% | +900,000 | New |
| Euclidean Capital LLC | 980,894 | $14.0M | 8.12% | 00.0% | Unchanged |
| Deerfield Management Company, L.P. (Series C) | 1,055,192 | $15.0M | 0.34% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 1,076,289 | $15.3M | 0.00% | +14,528+1.4% | Added |
| Millennium Management LLC | 1,140,089 | $16.2M | 0.02% | +748,883+191.4% | Added |
| Price T Rowe Associates Inc | 1,890,908 | $26.9M | 0.00% | +14,060+0.7% | Added |
| Franklin Resources Inc | 2,224,025 | $31.7M | 0.01% | −37,778−1.7% | Reduced |
| JPMorgan Chase & Co | 2,455,567 | $35.0M | 0.00% | −71,068−2.8% | Reduced |
| State Street Corp | 3,836,093 | $54.7M | 0.00% | +772,398+25.2% | Added |
| FMR LLC | 4,655,078 | $66.3M | 0.01% | +40,350+0.9% | Added |
| BlackRock Inc. | 5,369,985 | $76.5M | 0.00% | −10,424−0.2% | Reduced |
| Vanguard Group Inc | 5,443,923 | $77.6M | 0.00% | −96,317−1.7% | Reduced |
| EcoR1 Capital, LLC | 5,738,448 | $81.8M | 2.56% | +743,478+14.9% | Added |
| Federated Hermes, Inc. | 5,931,034 | $84.5M | 0.19% | +650,187+12.3% | Added |
| Casdin Capital, LLC | 0 | $0 | 0.00% | −1,650,000−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −230,867−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −81,600−100.0% | Sold out |
| Alpha DNA Investment Management LLC | 0 | $0 | 0.00% | −66,852−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −57,748−100.0% | Sold out |
| Jackson Creek Investment Advisors LLC | 0 | $0 | 0.00% | −45,024−100.0% | Sold out |
| Kiwi Wealth Investments Limited Partnership | 0 | $0 | 0.00% | −32,471−100.0% | Sold out |
| AE Wealth Management LLC | 0 | $0 | 0.00% | −31,303−100.0% | Sold out |
| IndexIQ Advisors LLC | 0 | $0 | 0.00% | −20,969−100.0% | Sold out |
| Handelsbanken Fonder AB | 0 | $0 | 0.00% | −15,700−100.0% | Sold out |
| British Columbia Investment Management Corp | 0 | $0 | 0.00% | −15,429−100.0% | Sold out |
| Gotham Asset Management, LLC | 0 | $0 | 0.00% | −13,978−100.0% | Sold out |
| SEI Investments Co | 0 | $0 | 0.00% | −13,815−100.0% | Sold out |
| Transcend Wealth Collective, LLC | 0 | $0 | 0.00% | −10,400−100.0% | Sold out |
| Eaton Vance Management | 0 | $0 | 0.00% | −1,286−100.0% | Sold out |
| Macroview Investment Management LLC | 0 | $0 | 0.00% | −803−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −310−100.0% | Sold out |
| HM Payson & Co | 0 | $0 | 0.00% | −184−100.0% | Sold out |
| The PNC Financial Services Group, Inc. | 0 | $0 | 0.00% | −98−100.0% | Sold out |
| Bellevue Asset Management, LLC | 0 | $0 | 0.00% | −73−100.0% | Sold out |
| Bivin & Associates, Inc. | 0 | $0 | 0.00% | −30−100.0% | Sold out |