Alector, Inc. — Director's Dealing 2019

Feb 6, 2019

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: Alector, Inc. (ALEC)
CIK: 0001653087
Period of Report: 2019-02-06

Reporting Person: LAVIGNE LOUIS J JR (Director)

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Series E Preferred Stock	$		Common Stock (10552)		Indirect
Stock Option (right to buy)	$10.14	2028-11-05	Common Stock (70000)		Direct

Footnotes

F1: The Series E Preferred Stock shall automatically convert into shares of Common Stock on a one to one basis immediately prior to the completion of the Issuer's initial public offering of Common Stock and has no expiration date.

F2: The shares are held of record by Lavrite, LLC, for which the Reporting Person serves as a managing director.

F3: One fourth (1/4th) of the shares subject to the option shall vest on October 25, 2019, and one forty-eighth (1/48th) of the shares subject to the option shall vest each month thereafter.