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 |
|---|---|---|---|---|---|
| ProShare Advisors LLC | 19,448 | $277.0K | 0.00% | −4,759−19.7% | Reduced |
| Erste Asset Management GmbH | 19,000 | $275.5K | 0.01% | +19,000 | New |
| Barclays PLC | 18,563 | $265.0K | 0.00% | −91,358−83.1% | Reduced |
| Tudor Investment Corp Et Al | 18,507 | $264.0K | 0.01% | +18,507 | New |
| Parametric Portfolio Associates LLC | 18,383 | $262.0K | 0.00% | −65,503−78.1% | Reduced |
| Tower Research Capital LLC (TRC) | 16,847 | $240.0K | 0.00% | +8,922+112.6% | Added |
| Quantedge Capital Pte Ltd | 16,200 | $231.0K | 0.07% | +4,700+40.9% | Added |
| Corton Capital Inc. | 15,873 | $226.0K | 0.10% | −23,461−59.6% | Reduced |
| Ensign Peak Advisors, Inc | 15,190 | $216.0K | 0.00% | 00.0% | Unchanged |
| Walleye Capital LLC | 15,000 | $214.0K | 0.01% | −10,072−40.2% | Reduced |
| Arizona State Retirement System | 14,281 | $204.0K | 0.00% | +132+0.9% | Added |
| Gsa Capital Partners LLP | 12,984 | $185.0K | 0.02% | +12,984 | New |
| Simplex Trading, LLC | 12,128 | $172.0K | 0.01% | +4,185+52.7% | Added |
| E Fund Management Co., Ltd. | 11,434 | $163.0K | 0.01% | +11,434 | New |
| Delphia (USA) Inc. | 11,031 | $157.0K | 0.12% | −4,292−28.0% | Reduced |
| Teacher Retirement System of Texas | 10,911 | $155.0K | 0.00% | +766+7.6% | Added |
| Mirae Asset Global Investments Co., Ltd. | 10,771 | $153.0K | 0.00% | −1,088−9.2% | Reduced |
| Principal Financial Group Inc | 10,694 | $152.0K | 0.00% | −8,920−45.5% | Reduced |
| Janus Henderson Group PLC | 10,533 | $150.0K | 0.00% | +9+0.1% | Added |
| Utah Retirement Systems | 10,286 | $147.0K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 10,160 | $147.0K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 10,228 | $145.7K | 0.00% | −1,929−15.9% | Reduced |
| D.A. Davidson & Co. | 10,000 | $143.0K | 0.00% | 00.0% | Unchanged |
| BKD Wealth Advisors, LLC | 10,000 | $143.0K | 0.01% | +10,000 | New |
| Point72 Hong Kong Ltd | 9,635 | $137.0K | 0.01% | +6,414+199.1% | Added |
| Amalgamated Bank | 9,510 | $136.0K | 0.00% | −769−7.5% | Reduced |
| Amalgamated Financial Corp. | 9,510 | $136.0K | 0.00% | +9,510 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 8,124 | $116.0K | 0.00% | +2,750+51.2% | Added |
| Public Employees Retirement Association of Colorado | 7,914 | $113.0K | 0.00% | 00.0% | Unchanged |
| Virtus ETF Advisers LLC | 7,356 | $105.0K | 0.05% | −443−5.7% | Reduced |
| State of Wyoming | 5,586 | $79.0K | 0.04% | +4,011+254.7% | Added |
| Hershey Trust Co | 5,143 | $73.0K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 4,730 | $68.0K | 0.00% | −9,182−66.0% | Reduced |
| Exane Derivatives | 4,594 | $65.5K | 0.02% | −389−7.8% | Reduced |
| Ameritas Investment Partners, Inc. | 4,559 | $65.0K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 3,857 | $55.0K | 0.00% | −11,276−74.5% | Reduced |
| Amundi | 3,892 | $52.0K | 0.00% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 3,128 | $44.0K | 0.00% | 00.0% | Unchanged |
| Great West Life Assurance Co | 2,855 | $43.0K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 2,719 | $38.0K | 0.00% | −300−9.9% | Reduced |
| Nauset Wealth Management. LLC | 2,500 | $36.0K | 0.03% | +2,500 | New |
| Cutler Group LP | 2,111 | $30.0K | 0.00% | −2,100−49.9% | Reduced |
| FourThought Financial, LLC | 1,962 | $28.0K | 0.00% | +349+21.6% | Added |
| Quantbot Technologies LP | 1,800 | $25.0K | 0.00% | +1,800 | New |
| Macquarie Group Ltd | 1,405 | $20.0K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 1,221 | $18.0K | 0.00% | +203+19.9% | Added |
| Captrust Financial Advisors | 1,265 | $18.0K | 0.00% | +854+207.8% | Added |
| Mark Sheptoff Financial Planning, LLC | 900 | $13.0K | 0.01% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 649 | $9.00K | 0.00% | −447−40.8% | Reduced |
| CWM, LLC | 500 | $7.00K | 0.00% | 00.0% | Unchanged |
| Beaird Harris Wealth Management, LLC | 473 | $7.00K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 415 | $5.91K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 277 | $4.00K | 0.00% | 00.0% | Unchanged |
| TCI Wealth Advisors, Inc. | 264 | $4.00K | 0.00% | +75+39.7% | Added |
| National Bank of Canada | 200 | $3.00K | 0.00% | 00.0% | Unchanged |
| Annapolis Financial Services, LLC | 205 | $3.00K | 0.00% | +205 | New |
| Washington Trust Advisors, Inc. | 156 | $2.00K | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 108 | $2.00K | 0.00% | −9−7.7% | Reduced |
| Fortitude Advisory Group L.L.C. | 76 | $1.00K | 0.00% | 00.0% | Unchanged |
| Salem Investment Counselors Inc | 50 | $1.00K | 0.00% | 00.0% | Unchanged |
| Investors Research Corp | 40 | $1.00K | 0.00% | 00.0% | Unchanged |
| HighMark Wealth Management LLC | 50 | $1.00K | 0.00% | 00.0% | Unchanged |
| Prospera Financial Services Inc | 50 | $1.00K | 0.00% | +50 | New |
| Parallel Advisors, LLC | 15 | $0 | 0.00% | 00.0% | Unchanged |
| Solstein Capital, LLC | 18 | $0 | 0.00% | 00.0% | Unchanged |
| Covestor Ltd | 19 | $0 | 0.00% | +2+11.8% | 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 |