InsiderTrades

Form 4 for ALEC Alector, Inc.

Accepted 2025-06-04 00:00:00 ET · period of report 2025-06-02 · accession 0001415889-25-015591 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
2025-06-04 2025-06-02 ALEC GRASSO MARC CFO S - Sale $1.34 -16.5K 296.1K -5% -$22.1K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-06-02 S D 16,488 $1.34 296,072 D — — (F2) The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $1.285 to $1.41. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff, the issuer, or any security holder of the issuer upon request.