InsiderTrades

Form 4 for ALEC Alector, Inc.

Accepted 2026-03-13 00:00:00 ET · period of report 2026-03-13 · accession 0001193125-26-106250 · 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
2026-03-13 2026-03-13 ALEC Rosenthal Arnon CEO, Dir A - Grant $0.00 +116.2K 2.45M +5% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-03-13 A A 116,246 $0.00 2,454,422 D — — (F1) The reported shares are represented by restricted stock units, or RSUs, one half (1/2) of the total shares shall vest on September 1, 2026 and one half (1/2th) of the total shares shall vest on March 1, 2027.