John Kenneweg - Apr 12, 2022 Form 4 Insider Report for 908 Devices Inc. (MASS)

Role: Vice President, Government
Signature: /s/ Michael S. Turner, as attorney-in-fact
Stock symbol: MASS
Transactions as of: Apr 12, 2022
Transactions value $: -$194,834
Form type: 4
Date filed: 4/14/2022, 04:20 PM
Previous filing: Mar 21, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MASS	Common Stock, par value $0.001	Options Exercise	$3.46K	+9.88K		$0.35^*	9.88K	Apr 12, 2022	Direct
transaction	MASS	Common Stock, par value $0.001	Sale	-$198K	-9.88K	-100%	$20.07	0	Apr 12, 2022	Direct	F1, F2

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	MASS	Stock Option (option to buy)	Options Exercise	$0	-9.88K	-15.67%	$0.00	53.2K	Apr 12, 2022	Common Stock, par value $0.001	63K	$0.35	Direct	F3

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

Explanation of Responses:

Id	Content
F1	Represents sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.
F2	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.00 to $20.20, inclusive. The reporting person undertakes to provide to 908 Devices Inc., any security holder of 908 Devices Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.
F3	The shares underlying the option are fully vested and immediately exercisable.