NASDAQ: ALEC
Alector Inc Stock Ownership - Who owns Alector?

Insider buying vs selling

Have Alector Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Neil Lindsay BerkleyPrincipal Financial Officer2025-09-0215,842$2.50
$39.56kSell
Sara KenkaremitraPresident and Head of RD2025-09-0223,638$2.50
$59.02kSell
Arnon RosenthalChief Executive Officer2025-09-0251,562$2.50
$128.75kSell
Grace WongsaradPrincipal Accounting Officer2025-09-025,910$2.50
$14.76kSell
Paula HammondDirector2025-08-2614,000$2.36
$33.00kSell
Kristine YaffeDirector2025-06-201,000$1.44
$1.44kSell
Marc GrassoChief Financial Officer2025-06-0216,488$1.34
$22.06kSell
Sara KenkaremitraPresident and Head of RD2025-06-0223,890$1.34
$31.96kSell
Arnon RosenthalChief Executive Officer2025-06-0252,087$1.34
$69.69kSell
Gary RomanoChief Medical Officer2025-03-0316,306$1.47
$23.92kSell

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Net Insider Buy/Sell (L12M) Ownership

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ALEC Shareholders

What type of owners hold Alector Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Polaris Venture Management Co VI LLC22.44%22,712,011$62.46MInsider
Fmr LLC14.82%14,998,889$41.25MInstitution
Terrance McGuire12.80%12,952,589$35.62MInsider
Blackrock Inc7.88%7,973,580$21.93MInstitution
Vanguard Group Inc5.92%5,987,704$16.47MInstitution
Price T Rowe Associates Inc4.82%4,875,264$13.41MInstitution
Merck Co Inc3.50%3,545,719$9.75MInstitution
Arnon Rosenthal2.97%3,002,720$8.26MInsider
Tillman U. Gerngross2.61%2,644,319$7.27MInsider
Acadian Asset Management LLC2.14%2,170,388$5.97MInstitution

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ALEC vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALEC59.85%40.15%Net SellingNet Selling
LXEO78.28%13.27%Net BuyingNet Selling
OMER42.72%5.74%
NGNE46.34%53.66%Net Buying
DBVT5.28%26.94%Net SellingNet Selling

Alector Stock Ownership FAQ

Who owns Alector?

Alector (NASDAQ: ALEC) is owned by 69.66% institutional shareholders, 46.74% Alector insiders, and 0.00% retail investors. Polaris Venture Management Co VI LLC is the largest individual Alector shareholder, owning 22.71M shares representing 22.44% of the company. Polaris Venture Management Co VI LLC's Alector shares are currently valued at $62.46M.

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