First Light Asset Management, LLC

Holdings History for 908 Devices Inc. - Common Stock, $0.001 par value (MASS)

Symbol: MASS on Nasdaq
Investment type: Equity / Common Stock, $0.001 par value
Latest Disclosed Shares Owned: 6,184,739 shares
Security Ownership %: 17%

Shares, Excluding Options vs Price

Value, Excluding Options

Mathew P. Arens ownership in 908 Devices Inc. Common Stock, $0.001 par value (MASS)

17 Feb 2026 - Mathew P. Arens has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 6,184,739 shares of 908 Devices Inc. Common Stock, $0.001 par value (MASS). This represents 17% ownership of the company. In their previous filing dated 05 Dec 2025, First Light Asset Management, LLC had reported owning 4,680,859 shares, indicating an increase of +32%. .

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
Mathew P. Arens	17%	+32%	$33,397,591	6,184,739	+1,503,880	+32%	$5.40	13G/A	31 Dec 2025	17 Feb 2026, 16:35
First Light Asset Management, LLC	13%	+31%	$27,617,068	4,680,859	+1,118,602	+31%	$5.90	13G/A	30 Nov 2025	05 Dec 2025, 16:32
First Light Asset Management, LLC	9.8%		$31,205,371	3,562,257			$8.76	13G	30 Sep 2025	14 Nov 2025, 16:37

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
31 Dec 2025	1.9%	+0.93%	$25,389,977	4,836,186	+2,325,690	+93%	$5.25	Q4 2025
30 Sep 2025	2.1%	+1.2%	$21,991,945	2,510,496	+1,442,883	+135%	$8.76	Q3 2025
30 Jun 2025	0.99%	-0.59%	$7,612,081	1,067,613	-633,482	-37%	$7.13	Q2 2025
31 Mar 2025	0.87%	+0.87%	$7,620,906	1,701,095	+1,701,095	NEW	$4.48	Q1 2025
30 Jun 2021		-0.07%	$0	0	-20,700	-100%	$6.41	Q2 2021
31 Mar 2021	0.07%	-0.19%	$1,004,000	20,700	-59,300	-74%	$48.50	Q1 2021
31 Dec 2020	0.34%	+0.34%	$4,556,000	80,000	+80,000	NEW	$56.95	Q4 2020

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.