InsiderTrades

Form 4 for ALEC Alector, Inc.

Accepted 2026-06-17 16:05:20 ET · period of report 2026-06-17 · accession 0001193125-26-274131 · 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 2026-06-17 16:05 2026-06-17 ALEC Hammond Paula Dir A - Grant $0.00 +28.7K 103.6K +38% $0
D 2026-06-17 16:05 2026-06-17 ALEC Hammond Paula Dir A - Grant $0.00 +9,450 9,450 New $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-06-17 A A 28,700 $0.00 103,609 D — — (F1) The reported shares are represented by restricted stock units, or RSUs, which vest on the earlier of (i) June 17, 2027 or (ii) the date of the Issuer's next annual meeting of stockholders.
2 Derivative Stock Option (right to buy) 2026-06-17 A A 9,450 $0.00 9,450 D $0.00 · — to 2036-06-16 9,450 Common Stock (F2) The shares subject to the option vest in 12 equal monthly installments beginning on July 17, 2026, provided that the shares subject to the option will vest in full on the earlier of the one-year anniversary of the date of grant or the date of the Issuer's next annual meeting of stockholders.