Geoffrey Mackay - 23 Dec 2022 Form 4 Insider Report for AVROBIO, Inc. (TECX)

Role: President & CEO, Director
Signature: /s/ Steven Avruch, Attorney-in-Fact for Geoffrey MacKay
Issuer symbol: TECX
Transactions as of: 23 Dec 2022
Net transactions value: +$58,680
Form type: 4
Filing time: 28 Dec 2022, 18:18:56 UTC
Previous filing: 09 Dec 2022
Next filing: 26 Jan 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AVRO	Common Stock	Options Exercise	$58,680	+142,013	+58%	$0.4132	387,136	23 Dec 2022	Direct
holding	AVRO	Common Stock						72,604	23 Dec 2022	By daughter of reporting person
holding	AVRO	Common Stock						72,604	23 Dec 2022	By son of reporting person
holding	AVRO	Common Stock						200,000	23 Dec 2022	By The Geoff R. MacKay Irrevocable Trust

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	AVRO	Stock Option (Right to Buy)	Options Exercise	$0	-142,013	-100%	$0.000000^*	0	23 Dec 2022	Common Stock	142,013	$0.4132	Direct	F1

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

Explanation of Responses:

Id	Content
F1	25% of the shares vested on July 1, 2017, and the remaining 75% vested in equal quarterly installments thereafter over a three-year period.