Michael S. Turner - 23 Jun 2022 Form 4 Insider Report for 908 Devices Inc. (MASS)

Role: VP, General Counsel
Signature: /s/ Michael S. Turner
Issuer symbol: MASS
Transactions as of: 23 Jun 2022
Net transactions value: -$99,900
Form type: 4
Filing time: 27 Jun 2022, 17:00:05 UTC
Previous filing: 03 Mar 2022
Next filing: 01 Jul 2022
SEC: View on sec.gov

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	$79,100	+10,000	+200%	$7.91	15,000	23 Jun 2022	Direct
transaction	MASS	Common Stock, par value $0.001	Sale	$179,000	-10,000	-67%	$17.90	5,000	23 Jun 2022	Direct	F1

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	-10,000	-9.9%	$0.000000	91,069	23 Jun 2022	Common Stock, par value $0.001	101,069	$7.91	Direct	F2

* 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 shares underlying the option become vested and exercisable in substantially equal monthly installments over the 48 months following November 2, 2020, subject to the reporting person's continued service through the applicable vesting date.