Sara Kenkare-Mitra - Jul 1, 2025 Form 4 Insider Report for Alector, Inc. (ALEC)

Signature
/s/ Grace Wong-Sarad, by power of attorney
Stock symbol
ALEC
Transactions as of
Jul 1, 2025
Transactions value $
$0
Form type
4
Date filed
7/1/2025, 05:00 PM
Previous filing
Jun 4, 2025
Next filing
Jul 30, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Kenkare-Mitra Sara President and Head of R&D C/O ALECTOR, INC., 131 OYSTER POINT BLVD., SUITE 600, SOUTH SAN FRANCISCO /s/ Grace Wong-Sarad, by power of attorney 2025-07-01 0001895592

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ALEC Common Stock Award $0 +54.7K +10.68% $0.00 567K Jul 1, 2025 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction ALEC Employee Stock Option (right to buy) Award $0 +18.3K $0.00 18.3K Jul 1, 2025 Common Stock 18.3K $1.42 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The reported shares are represented by restricted stock units, or RSUs, one half (1/2) of the total shares shall vest on December 1, 2025 and one fourth (1/4th) of the total shares shall vest quarterly thereafter.
F2 One third (1/3rd) of the total shares subject to the option shall vest on November 1, 2025, and one twelfth (1/12th) of the total shares subject to the option shall vest in equal monthly installments thereafter, provided that the shares subject to the option will vest in full on July 1, 2026.