Erik Ostrowski - 01 Feb 2024 Form 4 Insider Report for AVROBIO, Inc. (TECX)

Role: Interim CEO, President and CFO
Signature: /s/ Steven Avruch, Attorney-in-Fact for Erik Ostrowski
Issuer symbol: TECX
Transactions as of: 01 Feb 2024
Net transactions value: -$15,745
Form type: 4
Filing time: 05 Feb 2024, 19:57:30 UTC
Previous filing: 03 Jul 2023
Next filing: 26 Jun 2024
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	$0	+40,084	+1743%	$0.000000	42,384	01 Feb 2024	Direct
transaction	AVRO	Common Stock	Tax liability	$15,745	-13,099	-31%	$1.20	29,285	05 Feb 2024	Direct

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	Restricted Stock Unit	Options Exercise	$0	-40,084	-25%	$0.000000	120,249	01 Feb 2024	Common Stock	40,084	$0.000000	Direct	F1

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

Explanation of Responses:

Id	Content
F1	The shares subject to the RSU shall vest over 4 years, with 25% vesting annually on each anniversary of the Vesting Commencement Date of February 1, 2023.