Sara Kenkare-Mitra - Oct 1, 2023 Form 4 Insider Report for Alector, Inc. (ALEC)

Role: President and Head of R&D
Signature: /s/ Marc Grasso, by power of attorney
Stock symbol: ALEC
Transactions as of: Oct 1, 2023
Transactions value $: $0
Form type: 4
Date filed: 10/3/2023, 06:10 PM
Previous filing: Sep 7, 2023
Next filing: Dec 6, 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ALEC	Common Stock	Award	$0	+164K	+91.94%	$0.00	342K	Oct 1, 2023	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	+54.5K		$0.00	54.5K	Oct 1, 2023	Common Stock	54.5K	$6.48	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, which vest in 12 equal quarterly installments beginning on December 1, 2023.
F2	Shares subject to the option vest in 48 equal monthly installments beginning on November 1, 2023.