908 DEVICES INC

Ticker: MASS CUSIP: 65443P102 Class: Common Stock

GSA CAPITAL PARTNERS LLP's Holding History (CIK: 0001362033)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 122,137 Value ($000) $1 Avg Close $6.99 Range $5.16 - $9.34

Q1 2025

Shares 51,838 Value ($000) $0 Avg Close $2.96 Range $1.92 - $4.80

Q4 2024

Shares 117,885 Value ($000) $0 Avg Close $2.86 Range $1.81 - $4.05

Q3 2023

Shares 16,801 Value ($000) $0 Avg Close $6.93 Range $5.84 - $8.54

Q1 2023

Shares 26,244 Value ($000) $0 Avg Close $8.92 Range $6.38 - $10.97

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	122,137	$1	$6.99	$5.16 - $9.34
Q1 2025	51,838	$0	$2.96	$1.92 - $4.80
Q4 2024	117,885	$0	$2.86	$1.81 - $4.05
Q3 2023	16,801	$0	$6.93	$5.84 - $8.54
Q1 2023	26,244	$0	$8.92	$6.38 - $10.97