Alector, Inc. — Director's Dealing 2025

Dec 8, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alector, Inc. (ALEC)
CIK: 0001653087
Period of Report: 2025-12-05

Reporting Person: Wong-Sarad Grace (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-12-05	Common Stock	S	4753	$1.21	Disposed	122982	Direct

Footnotes

F1: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 5, 2025.