Alector, Inc. — Director's Dealing 2024

Mar 21, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alector, Inc. (ALEC)
CIK: 0001653087
Period of Report: 2024-03-19

Reporting Person: Altmeyer Mark (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-03-19	Common Stock	A	41250	$0.00	Acquired	41250	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2024-03-19	Stock Option (right to buy)	$6.20	A	19420	Acquired	2034-03-19	Common Stock (19420)	Direct

Footnotes

F1: The reported shares are represented by restricted stock units, or RSUs, which vest in 12 equal quarterly installments beginning on September 1, 2024.

F2: Shares subject to the option vest in 48 equal monthly installments beginning on April 19, 2024.