Spada Alfred P. [Rocket]

Date	Name	Symbol	Type	Security	Shares	Price	Value	Reported
02/23/2023	Histogen Inc.	CNAT	Grant	Stock Option (right to buy)	106.8k	$1.04	$111.2k	02/23/2023
05/22/2020	Histogen Inc.	CNAT	Exercise	Restricted Stock Units	31.3k	$0.00	$0	05/22/2020
05/22/2020	Histogen Inc.	CNAT	Payment of Exercise	Common Stock	13k	$0.56	$7.3k	05/22/2020
02/27/2018	Histogen Inc.	CNAT	Exercise	Stock Option (Right to Buy)	12.1k	$1.24	$15k	02/27/2018
02/04/2018	Histogen Inc.	CNAT	Grant	Stock Option (Right to Buy)	70k	$5.17	$361.9k	02/04/2018
01/26/2017	Histogen Inc.	CNAT	Grant	Stock Option (Right to Buy)	100.6k	$4.21	$423.6k	01/26/2017