Kevin J. Knopp - 01 Feb 2023 Form 4 Insider Report for 908 Devices Inc. (MASS)

Role: President and CEO, Director
Signature: /s/ Michael S. Turner, as Attorney-in-Fact
Issuer symbol: MASS
Transactions as of: 01 Feb 2023
Net transactions value: -$458,299
Form type: 4
Filing time: 03 Feb 2023, 16:16:49 UTC
Previous filing: 17 Nov 2022
Next filing: 17 Feb 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MASS	Common Stock	Options Exercise		+11,255	+2.3%		491,897	01 Feb 2023	Direct	F1
transaction	MASS	Common Stock	Sale	$37,899	-4,049	-0.82%	$9.36	487,848	01 Feb 2023	Direct	F2, F3
transaction	MASS	Common Stock	Sale	$420,400	-40,000	-8.2%	$10.51	447,848	02 Feb 2023	Direct	F4, F5
holding	MASS	Common Stock						541,223	01 Feb 2023	See Footnote	F6

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	Restricted Stock Unit	Options Exercise	$0	-11,255	-25%	$0.000000	33,764	01 Feb 2023	Common Stock	11,255		Direct	F1, F7

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

Explanation of Responses:

Id	Content
F1	Each Restricted Stock Unit ("RSU") represents a contingent right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of RSUs in shares of Common Stock on their scheduled vesting date.
F2	The sale reported on this Form 4 represents shares sold by the reporting person to cover tax withholding obligations in connection with the vesting and settlement of RSUs. The sale is mandated by the issuer's election to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the reporting person.
F3	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.98 to $9.63, 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.
F4	Represents sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.
F5	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.00 to $10.89, 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.
F6	The shares are owned directly by The Kevin J. Knopp Irrevocable Trust of 2018. The reporting person's brother-in-law is the trustee of The Kevin J. Knopp Irrevocable Trust of 2018 and has sole voting and dispositive control with respect to all securities held by such trust. The reporting person may be deemed to be the beneficial owner of the securities held by The Kevin J. Knopp Irrevocable Trust of 2018.
F7	The 11,255 RSUs vested on February 1, 2023, with the remaining 33,764 RSUs vesting in three substantially equal annual installments at the three anniversary dates following February 1, 2023, subject to the reporting person's continued service through the applicable vesting date. The RSUs have no expiration date.