Errol Desouza Insider Trades & Stock Holdings

Alector, Inc. · Latest filing Jun 17, 2026

Errol Desouza at Alector, Inc. has 1 Form 4 trade on file since Jun 17, 2026. Latest filing: acquired 9.45K shares of $ALEC on Jun 17, 2026.

Trades on file

1

Open-market bought

$0

Open-market sold

$0

Net open-market

$0

Latest filing

Jun 17, 2026

All insider trades by Errol Desouza

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Jun 17, 2026	$ALEC	Buy (Grant or award)	9.45K	$0	—								—

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks Errol Desouza traded

• $ALEC

Frequently asked questions

What was Errol Desouza's latest insider trade?

acquired 9.45K shares of $ALEC on Jun 17, 2026.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.