Spoto Mark [Rocket]

Date	Name	Symbol	Type	Security	Shares	Price	Value	Ownership	Reported
06/15/2023	908 Devices Inc.	MASS	Grant	Restricted Stock Units	7.8k	$0.00	$0		06/14/2023
06/15/2023	908 Devices Inc.	MASS	Grant	Stock Option (option to buy)	12.1k	$8.68	$104.8k		06/14/2023
06/14/2023	908 Devices Inc.	MASS	Exercise	Restricted Stock Units	4.8k	$0.00	$0		06/14/2023
11/22/2022	908 Devices Inc.	MASS	Purchase	Common Stock, par value $0.001	2.6k	$9.65	$24.9k		11/22/2022
06/16/2022	908 Devices Inc.	MASS	Grant	Restricted Stock Unit	4.8k	$0.00	$0		06/15/2022
06/16/2022	908 Devices Inc.	MASS	Grant	Stock Option (option to buy)	8k	$14.15	$112.8k		06/15/2022
06/15/2022	908 Devices Inc.	MASS	Exercise	Restricted Stock Unit	1.4k	$0.00	$0		06/15/2022
06/17/2021	908 Devices Inc.	MASS	Grant	Stock Option (option to buy)	2.5k	$41.70	$102.4k		06/17/2021
06/17/2021	908 Devices Inc.	MASS	Grant	Restricted Stock Unit	1.4k	$0.00	$0		06/17/2021
12/22/2020	908 Devices Inc.	MASS	Purchase	Common Stock, par value $0.001	1000	$20.00	$20k		12/22/2020
12/22/2020	908 Devices Inc.	MASS	Conversion	Common Stock, par value $0.001	1.4M	$0.00	$0	See Footnote	12/22/2020
12/22/2020	908 Devices Inc.	MASS	Conversion	Common Stock, par value $0.001	338.9k	$0.00	$0	See Footnote	12/22/2020
12/22/2020	908 Devices Inc.	MASS	Conversion	Common Stock, par value $0.001	168.7k	$0.00	$0	See Footnote	12/22/2020
12/22/2020	908 Devices Inc.	MASS	Conversion	Series A Preferred Stock	1.1M	$0.00	$0	See Footnote	12/22/2020
12/22/2020	908 Devices Inc.	MASS	Conversion	Series B Preferred Stock	360.6k	$0.00	$0	See Footnote	12/22/2020
12/22/2020	908 Devices Inc.	MASS	Conversion	Series C Preferred Stock	246.2k	$0.00	$0	See Footnote	12/22/2020
12/22/2020	908 Devices Inc.	MASS	Conversion	Series D Preferred Stock	92.7k	$0.00	$0	See Footnote	12/22/2020
12/22/2020	908 Devices Inc.	MASS	Conversion	Series D Preferred Stock	109.1k	$0.00	$0	See Footnote	12/22/2020
12/22/2020	908 Devices Inc.	MASS	Conversion	Series E Preferred Stock	59.6k	$0.00	$0	See Footnote	12/22/2020
12/17/2020	908 Devices Inc.	MASS	Grant	Stock Option (option to buy)	14.4k	$20.00	$288.2k		12/17/2020