Mark Spoto - 14 May 2025 Form 4 Insider Report for 908 Devices Inc. (MASS)

Role: Director
Signature: /s/ Michael S. Turner, as Attorney-in-Fact
Issuer symbol: MASS
Transactions as of: 14 May 2025
Net transactions value: +$42,850
Form type: 4
Filing time: 15 May 2025, 16:52:08 UTC
Previous filing: 14 Jun 2024
Next filing: 13 Jun 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Spoto Mark	Director	C/O 908 DEVICES INC., 645 SUMMER STREET, BOSTON	/s/ Michael S. Turner, as Attorney-in-Fact	15 May 2025	0001836585

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MASS	Common Stock	Purchase	$30,100	+7,000	+13%	$4.30	59,971	14 May 2025	Direct
transaction	MASS	Common Stock	Purchase	$12,750	+3,000	+5%	$4.25	62,971	14 May 2025	Direct
holding	MASS	Common Stock						3,599	14 May 2025	See Footnote	F1

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

Explanation of Responses:

Id	Content
F1	These securities are owned directly by Razor's Edge Ventures, LLC. The reporting person is a managing member of Razor's Edge Ventures, LLC and may be deemed to be the beneficial owner of the securities held by Razor's Edge Ventures, LLC. The reporting person disclaims beneficial ownership of the securities held by Razor's Edge Ventures, LLC except to the extent of his pecuniary interest therein.