908 DEVICES INC

Ticker: MASS CUSIP: 65443P102 Class: Common Stock

XTX Topco Ltd's Holding History (CIK: 0001828301)

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

Q4 2025

Shares 19,852 Value ($000) $104 Avg Close $6.99 Range $5.16 - $9.34

Q3 2025

Shares 45,036 Value ($000) $395 Avg Close $6.64 Range $5.32 - $8.79

Q1 2025

Shares 38,208 Value ($000) $171 Avg Close $2.96 Range $1.92 - $4.80

Q4 2024

Shares 52,196 Value ($000) $115 Avg Close $2.86 Range $1.81 - $4.05

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	19,852	$104	$6.99	$5.16 - $9.34
Q3 2025	45,036	$395	$6.64	$5.32 - $8.79
Q1 2025	38,208	$171	$2.96	$1.92 - $4.80
Q4 2024	52,196	$115	$2.86	$1.81 - $4.05