Alector, Inc. — Director's Dealing 2021

Oct 4, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alector, Inc. (ALEC)
CIK: 0001653087
Period of Report: 2021-10-01

Reporting Person: King Robert (Chief Development Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-10-01	Common Stock	A	7967	$0.00	Acquired	530284	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-10-01	Employee Stock Option (right to buy)	$23.70	A	35635	Acquired	2031-10-01	Common Stock (35635)	Direct

Footnotes

F1: The shares are represented by restricted stock units which vest in 12 equal quarterly installments beginning on December 1, 2021.

F2: The shares subject to the option vest in 48 equal monthly installments beginning on November 1, 2021.