Ownership

Calvin Yu

Insider Reports History

Entity: Individual
Location: C/O Alector, Inc., 151 Oyster Point Blvd., #300, South San Francisco, CA
Signature: /s/ David Oh, by power of attorney
All insider transactions: Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by Calvin Yu:

Stock	Role	Class	Num Shares	Value	Price $	Report Date	Ownership
Alector, Inc.	Vice President, Finance	Common Stock	76.7K	$426K	$5.56	Jul 6, 2021	Direct
Alector, Inc.	Vice President, Finance	Employee Stock Option (right to buy)	47.2K			Jul 6, 2021	Direct

Showing 1 to 2 of 2 entries

Insider Reports Filed by Calvin Yu

Symbol	Company	Period	Transactions	Value $	Form Type	Date Filed	Role
ALEC	Alector, Inc.	Jul 2, 2021	15	-$2.9M	4	Jul 7, 2021	Vice President, Finance
ALEC	Alector, Inc.	Jun 2, 2021	1	-$32.8K	4	Jun 3, 2021	Vice President, Finance
ALEC	Alector, Inc.	May 7, 2021	1	$0	4	May 11, 2021	Vice President, Finance