Louis J. Lavigne Jr - Jun 14, 2023 Form 4 Insider Report for Alector, Inc. (ALEC)

Role: Director
Signature: /s/ Marc Grasso, by power of attorney
Stock symbol: ALEC
Transactions as of: Jun 14, 2023
Transactions value $: $0
Form type: 4
Date filed: 6/15/2023, 04:02 PM
Previous filing: Jun 21, 2022
Next filing: Jun 12, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ALEC	Common Stock	Award	$0	+26.3K	+277.51%	$0.00	35.7K	Jun 14, 2023	Direct	F1
holding	ALEC	Common Stock						10.6K	Jun 14, 2023	See footnote	F2

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	Stock Option (right to buy)	Award	$0	+12.4K		$0.00	12.4K	Jun 14, 2023	Common Stock	12.4K	$7.71	Direct	F3

* 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 on the earlier of (i) June 14, 2024 or (ii) the date of the Issuer's next annual meeting of stockholders.
F2	The shares held of record by Lavrite, LLC, for which the reporting person serves as managing director.
F3	The shares subject to the option vest in 12 equal monthly installments beginning on July 14, 2023, provided that the shares subject to the option will vest in full on the earlier of the one-year anniversary of the date of grant or the date of the Issuer's next annual meeting of stockholders.