908 DEVICES INC

Ticker: MASS CUSIP: 65443P102 Class: Common Stock

SECTORAL ASSET MANAGEMENT INC's Holding History (CIK: 0001274413)

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

Q2 2022

Shares 131,757 Value ($000) $2,713 Avg Close $16.80 Range $12.67 - $21.38

Q1 2022

Shares 134,872 Value ($000) $2,564 Avg Close $17.19 Range $12.60 - $26.63

Q4 2021

Shares 134,872 Value ($000) $3,489 Avg Close $29.42 Range $22.21 - $39.34

Q3 2021

Shares 64,250 Value ($000) $2,089 Avg Close $33.97 Range $29.20 - $39.81

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2022	131,757	$2,713	$16.80	$12.67 - $21.38
Q1 2022	134,872	$2,564	$17.19	$12.60 - $26.63
Q4 2021	134,872	$3,489	$29.42	$22.21 - $39.34
Q3 2021	64,250	$2,089	$33.97	$29.20 - $39.81