908 DEVICES INC

Ticker: MASS CUSIP: 65443P102 Class: Common Stock

Russell Investments Group, Ltd.'s Holding History (CIK: 0001692234)

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

Q4 2025

Shares 2,268 Value ($000) $12 Avg Close $6.99 Range $5.16 - $9.34

Q3 2025

Shares 10,640 Value ($000) $93 Avg Close $6.64 Range $5.32 - $8.79

Q2 2024

Shares 987 Value ($000) $5 Avg Close $6.04 Range $4.94 - $7.56

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,268	$12	$6.99	$5.16 - $9.34
Q3 2025	10,640	$93	$6.64	$5.32 - $8.79
Q2 2024	987	$5	$6.04	$4.94 - $7.56