WallStreetZenWallStreetZen

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

1 of 3

ALEC insiders have sold more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when ALEC insiders and whales buy or sell their stock.

ALEC Shareholders

What type of owners hold Alector Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Polaris Venture Management Co VI LLC20.34%22,712,011$48.83MInsider
Terrance McGuire11.60%12,952,589$27.85MInsider
Arnon Rosenthal3.73%4,167,100$8.96MInsider
Tillman U. Gerngross2.37%2,644,319$5.69MInsider
Orbimed Advisors LLC1.71%1,906,718$4.10MInsider
Sabah Oney0.51%573,918$1.23MInsider
Robert King0.49%550,871$1.18MInsider
Sara Kenkaremitra0.45%501,652$1.08MInsider
Neil Lindsay Berkley0.35%395,216$849.71kInsider
Gary Romano0.30%332,977$715.90kInsider

1 of 3

ALEC vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALEC0.08%43.66%Net SellingNet Selling
FATE0.06%57.34%Net BuyingNet Selling
GLSI0.01%89.01%Net Buying
CABA0.09%2.57%Net Buying
ABEO0.07%74.99%Net SellingNet Selling
View Top Biotech Stocks

Alector Stock Ownership FAQ

Who owns Alector?

Alector (NASDAQ: ALEC) is owned by 0.08% institutional shareholders, 43.66% Alector insiders, and 56.26% 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 $48.83M.

If you're new to stock investing, here's how to buy Alector stock.
©2026 WallStreetZen
Company
AboutNewsBlogStock Investing FAQPlansPrivacy PolicyTerms of ServiceCancellation & RefundsPerformanceHelp GuidesContactTwitterYouTubeNewsletter
Stock Tools
Top Performing AnalystsStock ScreenerStock ForecastTrending StocksStrong Buy StocksHighest Earnings StocksBest Dividend Paying StocksStatisticsStock Market SectorsStock Market IndustriesHow to Buy Stocks Online
Stock Ideas
Buy The DipBiggest Stock Gainers TodayBiggest Stock Losers Today52 Week High Stocks52 Week Low StocksMost Active Stocks TodayMost Undervalued StocksBest Penny Stocks to Buy NowBest Stocks Under $5Best Stocks Under $10
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.