Kersten Dirk [Rocket]

Date	Name	Type	Security	Shares	Price	Value	Ownership	Reported
05/24/2023	Dyne Therapeutics, Inc.	Grant	Stock Option (right to buy)	24.9k	$13.49	$335.9k		05/24/2023
06/03/2022	Dyne Therapeutics, Inc.	Grant	Stock Option (right to buy)	19.6k	$4.58	$89.7k		06/03/2022
05/26/2021	Dyne Therapeutics, Inc.	Grant	Stock Option (right to buy)	19.6k	$19.56	$383.3k		05/26/2021
09/21/2020	Dyne Therapeutics, Inc.	Conversion	Series A Preferred Stock	15M	$0.00	$0	See footnote	07/31/2020
09/21/2020	Dyne Therapeutics, Inc.	Conversion	Series B Preferred Stock	5.3M	$0.00	$0	See footnote	07/31/2020
09/21/2020	Dyne Therapeutics, Inc.	Conversion	Common Stock	6.1M	$0.00	$0	See footnote	07/31/2020
08/07/2020	Dyne Therapeutics, Inc.	Purchase	Series B Preferred Stock	5.3M	$2.81	$15M	See footnote	07/31/2020
07/31/2020	Dyne Therapeutics, Inc.	Purchase	Series A Preferred Stock	5.2M	$1.00	$5.2M	See footnote	07/31/2020