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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 2025

Institutional positions in Alector, Inc. as of Jun 30, 2025. 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
136
−5 vs. Q1 2025
Shares held
70.5M
−2.11M (−2.9%) vs. Q1 2025
Total value
$98.7M
+$9.57M (+10.7%) vs. Q1 2025
New holders
17
47 more added
Sold out
22
37 more reduced

Compare with Q1 2025: 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.

Institutional holdersQ2 2025: 136 institutions
Q1 2021: 127 institutionsQ2 2021: 138 institutionsQ3 2021: 145 institutionsQ4 2021: 167 institutionsQ1 2022: 166 institutionsQ2 2022: 154 institutionsQ3 2022: 168 institutionsQ4 2022: 155 institutionsQ1 2023: 149 institutionsQ2 2023: 145 institutionsQ3 2023: 149 institutionsQ4 2023: 148 institutionsQ1 2024: 157 institutionsQ2 2024: 160 institutionsQ3 2024: 159 institutionsQ4 2024: 150 institutionsQ1 2025: 141 institutionsQ2 2025: 136 institutionsQ3 2025: 149 institutionsQ4 2025: 131 institutionsQ1 2026: 138 institutionsQ2 2026: 140 institutions
Value heldQ2 2025: $98.7M
Q1 2021: $931.7MQ2 2021: $1.02BQ3 2021: $1.19BQ4 2021: $1.13BQ1 2022: $789.8MQ2 2022: $546.8MQ3 2022: $516.1MQ4 2022: $506.0MQ1 2023: $360.9MQ2 2023: $354.5MQ3 2023: $402.6MQ4 2023: $510.1MQ1 2024: $446.6MQ2 2024: $330.4MQ3 2024: $338.4MQ4 2024: $138.8MQ1 2025: $89.1MQ2 2025: $98.7MQ3 2025: $221.2MQ4 2025: $131.5MQ1 2026: $190.0MQ2 2026: $183.4M
Institutions holding ALEC and their total value by quarter
QuarterHoldersValue
Q2 2026140$183.4M
Q1 2026138$190.0M
Q4 2025131$131.5M
Q3 2025149$221.2M
Q2 2025136$98.7M
Q1 2025141$89.1M
Q4 2024150$138.8M
Q3 2024159$338.4M
Q2 2024160$330.4M
Q1 2024157$446.6M
Q4 2023148$510.1M
Q3 2023149$402.6M
Q2 2023145$354.5M
Q1 2023149$360.9M
Q4 2022155$506.0M
Q3 2022168$516.1M
Q2 2022154$546.8M
Q1 2022166$789.8M
Q4 2021167$1.13B
Q3 2021145$1.19B
Q2 2021138$1.02B
Q1 2021127$931.7M

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Alector, Inc.; share changes are against Q1 2025.

Institutions holding ALEC in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
New York State Common Retirement Fund10,310$14.4K0.00%00.0%Unchanged
Texas Yale Capital Corp.10,000$14.0K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.8,175$11.4K0.00%00.0%Unchanged
Public Employees Retirement System of Ohio7,900$11.1K0.00%+7,900New
Legal & General Group Plc7,395$10.3K0.00%−1,661−18.3%Reduced
Mirae Asset Global Investments Co., Ltd.3,863$5.41K0.00%+547+16.5%Added
Nisa Investment Advisors, LLC3,347$4.69K0.00%−4,303−56.2%Reduced
Amalgamated Bank2,540$4.00K0.00%00.0%Unchanged
GF Fund Management Co. Ltd.2,429$3.40K0.00%00.0%Unchanged
Sterling Capital Management LLC1,994$2.79K0.00%+1,911+2,302.4%Added
Raymond James Financial Inc1,479$2.07K0.00%+1,479New
Advisor Group Holdings, Inc.1,120$1.57K0.00%+280+33.3%Added
Hughes Financial Services, LLC929$1.33K0.00%+929New
True Wealth Design, LLC930$1.30K0.00%+378+68.5%Added
UMA Financial Services, Inc.752$1.05K0.00%+11+1.5%Added
Skopos Labs, Inc.601$8420.00%+601New
Essential Partners LLC444$6220.00%+444New
Fortitude Family Office, LLC439$6150.00%+439New
Federation des caisses Desjardins du Quebec415$5810.00%00.0%Unchanged
Rise Advisors, LLC407$5700.00%+407New
Rialto Wealth Management, LLC403$5650.00%−298−42.5%Reduced
Bryn Mawr Trust Co400$5600.00%00.0%Unchanged
Rothschild Investment LLC380$5320.00%+330+660.0%Added
The PNC Financial Services Group, Inc.370$5180.00%00.0%Unchanged
Clearstead Advisors, LLC323$4530.00%+323New
Mark Sheptoff Financial Planning, LLC300$4200.00%00.0%Unchanged
EverSource Wealth Advisors, LLC249$3490.00%−705−73.9%Reduced
Allworth Financial LP200$2800.00%+200New
National Bank of Canada200$2780.00%00.0%Unchanged
Point72 Asia (Singapore) Pte. Ltd.58$820.00%−11,987−99.5%Reduced
GWM Advisors LLC32$450.00%00.0%Unchanged
Comerica Bank21$300.00%00.0%Unchanged
SBI Securities Co., Ltd.20$280.00%00.0%Unchanged
IFP Advisors, Inc9$130.00%+9New
Truvestments Capital LLC2$30.00%+2New
Daiwa Securities Group Inc.277$00.00%00.0%Unchanged
Ra Capital Management, L.P.0$00.00%−9,695,228−100.0%Sold out
Franklin Resources Inc0$00.00%−834,270−100.0%Sold out
Almitas Capital LLC0$00.00%−321,568−100.0%Sold out
Sphera Funds Management Ltd.0$00.00%−109,208−100.0%Sold out
Cercano Management LLC0$00.00%−93,633−100.0%Sold out
Alps Advisors Inc0$00.00%−74,933−100.0%Sold out
SG Americas Securities, LLC0$00.00%−60,248−100.0%Sold out
Squarepoint Ops LLC0$00.00%−59,214−100.0%Sold out
Marshall Wace, LLP0$00.00%−59,099−100.0%Sold out
Corebridge Financial, Inc.0$00.00%−40,171−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−19,539−100.0%Sold out
CIBC World Markets Corp0$00.00%−18,195−100.0%Sold out
Wealth Enhancement Advisory Services, LLC0$00.00%−13,678−100.0%Sold out
Quadrature Capital Ltd0$00.00%−12,949−100.0%Sold out
Pallas Capital Advisors LLC0$00.00%−12,111−100.0%Sold out
California State Teachers Retirement System0$00.00%−5,848−100.0%Sold out
Caitong International Asset Management Co., Ltd0$00.00%−4,030−100.0%Sold out
Lazard Asset Management LLC0$00.00%−1,752−100.0%Sold out
Carolinas Wealth Consulting LLC0$00.00%−1,500−100.0%Sold out
Coldstream Capital Management Inc0$00.00%−586−100.0%Sold out
Farther Finance Advisors, LLC0$00.00%−40−100.0%Sold out
Covestor Ltd0$00.00%−48−100.0%Sold out