908 DEVICES INC

Ticker: MASS CUSIP: 65443P102 Class: Common Stock

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q4 2025

Shares 32,294 Value ($000) $170 Avg Close $6.99 Range $5.16 - $9.34

Q4 2023

Shares 17,834 Value ($000) $200 Avg Close $6.83 Range $4.85 - $12.51

Q3 2023

Shares 25,834 Value ($000) $172 Avg Close $6.93 Range $5.84 - $8.54

Q2 2023

Shares 31,934 Value ($000) $219 Avg Close $8.04 Range $5.69 - $10.37

Q1 2023

Shares 31,434 Value ($000) $270 Avg Close $8.92 Range $6.38 - $10.97

Q4 2022

Shares 26,199 Value ($000) $200 Avg Close $12.10 Range $6.87 - $18.02

Q2 2022

Shares 33,822 Value ($000) $696 Avg Close $16.80 Range $12.67 - $21.38

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	32,294	$170	$6.99	$5.16 - $9.34
Q4 2023	17,834	$200	$6.83	$4.85 - $12.51
Q3 2023	25,834	$172	$6.93	$5.84 - $8.54
Q2 2023	31,934	$219	$8.04	$5.69 - $10.37
Q1 2023	31,434	$270	$8.92	$6.38 - $10.97
Q4 2022	26,199	$200	$12.10	$6.87 - $18.02
Q2 2022	33,822	$696	$16.80	$12.67 - $21.38