908 DEVICES INC

Ticker: MASS CUSIP: 65443P102 Class: Common Stock

Old Port Advisors's Holding History (CIK: 0001744348)

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

Q4 2025

Shares 38,629 Value ($000) $203 Avg Close $6.99 Range $5.16 - $9.34

Q3 2025

Shares 38,629 Value ($000) $338 Avg Close $6.64 Range $5.32 - $8.79

Q2 2025

Shares 73,629 Value ($000) $525 Avg Close $5.56 Range $3.55 - $8.06

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	38,629	$203	$6.99	$5.16 - $9.34
Q3 2025	38,629	$338	$6.64	$5.32 - $8.79
Q2 2025	73,629	$525	$5.56	$3.55 - $8.06