Alfred P. Spada - Feb 23, 2023 Form 4 Insider Report for Histogen Inc. (HSTO)

Role: Executive Vice President and Chief Scientific Officer
Signature: /s/ Susan A. Knudson as attorney-in-fact for Alfred P. Spada, Ph.D.
Stock symbol: HSTO
Transactions as of: Feb 23, 2023
Transactions value $: $0
Form type: 4
Date filed: 2/27/2023, 03:18 PM
Previous filing: Feb 3, 2023

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	HSTO	Stock Option (right to buy)	Award	$0	+107K		$0.00	107K	Feb 23, 2023	Common Stock	107K	$1.04	Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	This option was issued to the Reporting Person as an inducement to employment with the Issuer. It is intended to be an inducement grant in accordance with Rule 5635(c)(4) of the Nasdaq Listing Rules.
F2	1/4 of the shares subject to the option vest one year after the date of grant, on 2/1/2024, and the remaining 1/36 of the shares vest on a monthly basis thereafter.

Remarks:

Executive Vice President and Chief Scientific Officer