InsiderTrades

Form 4 for ALEC Alector, Inc.

Accepted 2026-09-04 17:45:05 ET · period of report 2026-09-03 · accession 0001193125-26-383856 · 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
2026-09-04 17:45 2026-09-03 ALEC Berkley Neil Lindsay CFO, Chief Business Off S - Sale $2.66 -29.3K 350.6K -8% -$77.9K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-09-03 S D 29,251 $2.66 350,649 D — — (F1) The reported shares were sold to satisfy the reporting person's tax obligations in connection with the vesting of restricted stock units, or RSUs. (F2) The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2.49 to $2.75. 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.