Robert King - Oct 1, 2021 Form 4/A - Amendment Insider Report for Alector, Inc. (ALEC)

Role: Chief Development Officer
Signature: /s/ David Oh, by power of attorney
Stock symbol: ALEC
Transactions as of: Oct 1, 2021
Transactions value $: $0
Form type: 4/A - Amendment
Date filed: 10/8/2021, 04:06 PM
Date Of Original Report: Oct 4, 2021
Previous filing: Jul 7, 2021
Next filing: Dec 3, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ALEC	Common Stock	Award	$0	+5.94K	+1.14%	$0.00	528K	Oct 1, 2021	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

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

Remarks:

This amendment on Form 4 is filed to adjust an overstatement of 2,028 shares of Common Stock in Columns 4 and 5 of Table I in a Form 4 filed on October 4, 2021.