908 DEVICES INC

Ticker: MASS CUSIP: 65443P102 Class: Common Stock

EMERALD ADVISERS, LLC's Holding History (CIK: 0001015083)

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

Q4 2022

Shares 89,267 Value ($000) $680 Avg Close $12.10 Range $6.87 - $18.02

Q3 2022

Shares 9,152 Value ($000) $151 Avg Close $19.42 Range $14.86 - $26.00

Q2 2022

Shares 320,442 Value ($000) $6,598 Avg Close $16.80 Range $12.67 - $21.38

Q1 2022

Shares 329,442 Value ($000) $6,263 Avg Close $17.19 Range $12.60 - $26.63

Q4 2021

Shares 300,824 Value ($000) $7,782 Avg Close $29.42 Range $22.21 - $39.34

Q3 2021

Shares 132,769 Value ($000) $4,318 Avg Close $33.97 Range $29.20 - $39.81

Q4 2020

Shares 16,157 Value ($000) $920 Avg Close $58.41 Range $43.25 - $74.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2022	89,267	$680	$12.10	$6.87 - $18.02
Q3 2022	9,152	$151	$19.42	$14.86 - $26.00
Q2 2022	320,442	$6,598	$16.80	$12.67 - $21.38
Q1 2022	329,442	$6,263	$17.19	$12.60 - $26.63
Q4 2021	300,824	$7,782	$29.42	$22.21 - $39.34
Q3 2021	132,769	$4,318	$33.97	$29.20 - $39.81
Q4 2020	16,157	$920	$58.41	$43.25 - $74.00