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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 WongsaradPAO2026-09-043,625$2.51
$9.10kSell
Arnon RosenthalCEO2026-09-0372,606$2.67
$193.49kSell
Neil Lindsay BerkleyCFO;CXO2026-09-0329,251$2.67
$77.95kSell
Grace WongsaradPAO2026-09-035,165$2.67
$13.77kSell
Grace WongsaradPAO2026-09-02656$2.75
$1.80kSell
Grace WongsaradPrincipal Accounting Officer2026-06-033,475$1.88
$6.54kSell
Grace WongsaradPrincipal Accounting Officer2026-06-025,709$1.97
$11.27kSell
Neil Lindsay BerkleyCFO Chief Business Officer2026-06-0219,360$1.97
$38.22kSell
Arnon RosenthalChief Executive Officer2026-06-0287,216$1.97
$172.16kSell
Grace WongsaradPrincipal Accounting Officer2026-04-161,820$2.65
$4.82kSell

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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 LLC20.34%22,712,011$42.02MInsider
Terrance McGuire11.60%12,952,589$23.96MInsider
Arnon Rosenthal3.54%3,949,600$7.31MInsider
Tillman U. Gerngross2.37%2,644,319$4.89MInsider
Orbimed Advisors LLC1.71%1,906,718$3.53MInsider
Sabah Oney0.51%573,918$1.06MInsider
Robert King0.49%550,871$1.02MInsider
Sara Kenkaremitra0.45%501,652$928.06kInsider
Neil Lindsay Berkley0.31%350,649$648.70kInsider
Gary Romano0.30%332,977$616.01kInsider

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ALEC vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALEC0.08%43.37%Net SellingNet Selling
ELDN0.06%37.81%Net SellingNet Selling
PLX0.01%99.99%Net Buying
TARA0.08%53.58%Net SellingNet Buying
CHRS0.05%14.00%Net Selling
View Top Biotech Stocks

Alector Stock Ownership FAQ

Who owns Alector?

Alector (NASDAQ: ALEC) is owned by 0.08% institutional shareholders, 43.37% Alector insiders, and 56.55% retail investors. Polaris Venture Management Co VI LLC is the largest individual Alector shareholder, owning 22.71M shares representing 20.34% of the company. Polaris Venture Management Co VI LLC's Alector shares are currently valued at $43.38M.

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