Yu Hong [Rocket]

Date	Name	Symbol	Type	Security	Shares	Price	Value	Ownership	Reported
12/07/2022	Biostage, Inc.	BSTG	Exercise (in-the-money or at-the-money)	Warrants (right to buy)	300k	$2.00	$600k	The spouse of the reporting person	12/07/2022
12/07/2022	Biostage, Inc.	BSTG	Sale	Common Stock	83.7k	$7.17	$600k	The spouse of the reporting person	12/07/2022
05/18/2022	Biostage, Inc.	BSTG	Grant	Stock Option (right to buy)	22.1k	$4.71	$104k		05/18/2022
12/29/2021	Biostage, Inc.	BSTG	Grant	Stock Option (right to buy)	113.1k	$2.30	$260.2k		12/29/2021
06/15/2018	Biostage, Inc.	BSTG	Purchase	Common Stock	4.7k	$4.50	$21.2k		06/14/2018
06/14/2018	Biostage, Inc.	BSTG	Purchase	Common Stock	14.6k	$4.39	$64.3k		06/14/2018
06/13/2018	Biostage, Inc.	BSTG	Purchase	Common Stock	650	$3.75	$2.4k		06/12/2018
06/12/2018	Biostage, Inc.	BSTG	Purchase	Common Stock	22k	$3.82	$84k		06/12/2018
05/29/2018	Biostage, Inc.	BSTG	Grant	Stock Option (right to buy)	104.6k	$2.72	$284.6k		05/29/2018