908 DEVICES INC

Ticker: MASS CUSIP: 65443P102 Class: Common Stock

Glassman Wealth Services's Holding History (CIK: 0001642160)

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

Q2 2023

Shares 120 Value ($000) $1 Avg Close $8.04 Range $5.69 - $10.37

Q1 2023

Shares 120 Value ($000) $1 Avg Close $8.92 Range $6.38 - $10.97

Q1 2022

Shares 12 Value ($000) $0 Avg Close $17.19 Range $12.60 - $26.63

Q3 2021

Shares 5 Value ($000) $0 Avg Close $33.97 Range $29.20 - $39.81

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2023	120	$1	$8.04	$5.69 - $10.37
Q1 2023	120	$1	$8.92	$6.38 - $10.97
Q1 2022	12	$0	$17.19	$12.60 - $26.63
Q3 2021	5	$0	$33.97	$29.20 - $39.81