Alector, Inc. — Director's Dealing 2019

Nov 8, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alector, Inc. (ALEC)
CIK: 0001653087
Period of Report: 2019-11-06

Reporting Person: Rosenthal Arnon (Director, Chief Executive Officer)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2019-11-06	Stock Option (right to buy)	$17.15	A	520000	Acquired	2029-11-05	Common Stock (520000)	Direct

Footnotes

F1: One forty-eighth (1/48th) of the shares subject to the option shall vest on the one month anniversary of November 6, 2019 (the "Vesting Commencement Date"), and one forty-eighth (1/48th) of the shares shall vest each month thereafter on the same day of the month as the Vesting Commencement Date (and if there is no corresponding day, on the last day of the month), subject to the Reporting Person continuing to have a Service Relationship (as defined in the Issuer's 2019 Equity Incentive Plan) with the Issuer through each such date.