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

Insider buying vs selling

Have Alector Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Sara KenkaremitraPresident and Head of RD2025-03-0329,073$1.47
$42.65kSell
Arnon RosenthalChief Executive Officer2025-03-0340,330$1.47
$59.16kSell
Marc GrassoChief Financial Officer2025-03-0318,091$1.47
$26.54kSell
Gary RomanoChief Medical Officer2025-03-0316,306$1.47
$23.92kSell
Arnon RosenthalChief Executive Officer2024-12-0252,172$2.52
$131.42kSell
Sara KenkaremitraPresident and Head of RD2024-12-0226,500$2.52
$66.75kSell
Marc GrassoChief Financial Officer2024-12-0216,489$2.52
$41.54kSell
Gary RomanoChief Medical Officer2024-12-0214,892$2.52
$37.51kSell
Arnon RosenthalChief Executive Officer2024-09-0326,499$4.88
$129.39kSell
Gary RomanoChief Medical Officer2024-09-038,478$4.88
$41.38kSell

1 of 2

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 LLC22.92%22,712,011$20.90MInsider
Fmr LLC14.83%14,689,865$13.51MInstitution
Terrance McGuire13.07%12,952,589$11.92MInsider
Ra Capital Management LP9.78%9,695,228$8.92MInstitution
Blackrock Inc9.22%9,136,747$8.41MInstitution
Vanguard Group Inc5.67%5,616,379$5.17MInstitution
Merck Co Inc3.58%3,545,719$3.26MInstitution
Arnon Rosenthal3.15%3,119,244$2.87MInsider
Tillman U. Gerngross2.67%2,644,319$2.43MInsider
Geode Capital Management LLC1.93%1,914,250$1.76MInstitution

1 of 3

ALEC vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALEC61.11%38.89%Net SellingNet Selling
GNLX14.08%6.43%Net Selling
EXOZ0.72%99.28%Net Buying
LXEO80.55%19.45%Net SellingNet Buying
ZNTL67.39%32.61%Net BuyingNet Buying

Alector Stock Ownership FAQ

Who owns Alector?

Alector (NASDAQ: ALEC) is owned by 74.02% institutional shareholders, 47.11% Alector insiders, and 0.00% retail investors. Polaris Venture Management Co VI LLC is the largest individual Alector shareholder, owning 22.71M shares representing 22.92% of the company. Polaris Venture Management Co VI LLC's Alector shares are currently valued at $20.90M.

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