InsiderTrades

Form 4 for ALEC Alector, Inc.

Accepted 2025-11-12 00:00:00 ET · period of report 2025-11-10 · accession 0002074667-25-000005 · 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
D 2025-11-12 2025-11-10 ALEC Wong-Sarad Grace Principal Accounting Off A - Grant $0.00 +32.3K 135.8K +31% $0
D 2025-11-12 2025-11-10 ALEC Wong-Sarad Grace Principal Accounting Off A - Grant $0.00 +48.5K 48.5K New $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-11-10 A A 32,343 $0.00 135,791 D — — (F1) The reported shares are represented by restricted stock units, or RSUs, which vest in 12 equal quarterly installments beginning on December 1, 2025.
2 Derivative Employee Stock Option (right to buy) 2025-11-10 A A 48,535 $0.00 48,535 D $1.31 · — to 2035-11-09 48,535 Common Stock (F2) Shares subject to the option vest in 48 equal monthly installments beginning on December 10, 2025.