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

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Alector Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Grace WongsaradPrincipal Accounting Officer2026-06-033,475$1.88
$6.54kSell
Arnon RosenthalChief Executive Officer2026-06-0287,216$1.97
$172.16kSell
Grace WongsaradPrincipal Accounting Officer2026-06-025,709$1.97
$11.27kSell
Neil Lindsay BerkleyCFO Chief Business Officer2026-06-0219,360$1.97
$38.22kSell
Grace WongsaradPrincipal Accounting Officer2026-04-161,820$2.65
$4.82kSell
Grace WongsaradPrincipal Accounting Officer2026-03-101,000$2.65
$2.65kSell
Grace WongsaradPrincipal Accounting Officer2026-03-033,367$2.08
$7.01kSell
Grace WongsaradPrincipal Accounting Officer2026-03-028,071$2.12
$17.13kSell
Neil Lindsay BerkleyCFO Chief Business Officer2026-03-0229,649$2.12
$62.94kSell
Arnon RosenthalChief Executive Officer2026-03-0281,864$2.12
$173.80kSell

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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 LLC20.46%22,712,011$35.43MInsider
Terrance McGuire11.67%12,952,589$20.21MInsider
Tcg Crossover Management LLC9.01%10,000,000$15.60MInstitution
Blackrock Inc6.97%7,741,245$12.08MInstitution
Acadian Asset Management LLC3.64%4,038,785$6.30MInstitution
Foresite Capital Management IV LLC3.50%3,887,200$6.06MInstitution
Vanguard Capital Management LLC3.31%3,678,722$5.74MInstitution
Merck Co Inc3.19%3,545,719$5.53MInstitution
D E Shaw Co Inc3.00%3,332,835$5.20MInstitution
683 Capital Management LLC2.88%3,200,000$4.99MInstitution

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ALEC vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALEC65.04%34.96%Net SellingNet Selling
IMUX80.09%19.91%
EQ64.05%22.25%Net SellingNet Selling
LENZ52.97%47.03%Net SellingNet Buying
TNXP24.04%75.96%Net BuyingNet Buying
View Top Biotech Stocks

Alector Stock Ownership FAQ

Who owns Alector?

Alector (NASDAQ: ALEC) is owned by 79.62% institutional shareholders, 42.80% Alector insiders, and 0.00% retail investors. Polaris Venture Management Co VI LLC is the largest individual Alector shareholder, owning 22.71M shares representing 20.46% of the company. Polaris Venture Management Co VI LLC's Alector shares are currently valued at $39.75M.

If you're new to stock investing, here's how to buy Alector stock.
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