Bruce & Co’s 908 Devices MASS Stock Holding History

Bruce & Co’s Portfolio MASS Stock Details MASS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$594K	Hold	68,286	–	–	0.16%	39
2026 Q1	$418K	Hold	68,286	–	–	0.12%	41
2025 Q4	$359K	Hold	68,286	–	–	0.11%	39
2025 Q3	$598K	Hold	68,286	–	–	0.19%	36
2025 Q2	$487K	Hold	68,286	–	–	0.16%	38
2025 Q1	$306K	Hold	68,286	–	–	0.1%	40
2024 Q4	$150K	Hold	68,286	–	–	0.05%	41
2024 Q3	$237K	Hold	68,286	–	–	0.07%	39
2024 Q2	$352K	Hold	68,286	–	–	0.12%	38
2024 Q1	$516K	Hold	68,286	–	–	0.17%	36
2023 Q4	$766K	Hold	68,286	–	–	0.27%	29
2023 Q3	$455K	Hold	68,286	–	–	0.16%	34
2023 Q2	$467K	Hold	68,286	–	–	0.13%	34
2023 Q1	$587K	Hold	68,286	–	–	0.16%	32
2022 Q4	$520K	Buy	+68,286	New	+$826K	0.13%	33

Other funds holding MASS

FLAM

First Light Asset Management Edina, Minnesota $1.65B AUM 203.21% 1-Year Est. Return

AIC

AWM Investment Company New York $1.15B AUM 201.65% 1-Year Est. Return

AIM

ARK Investment Management St. Petersburg, Florida $15.4B AUM 50.29% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

NIM

Needham Investment Management New York $3.33B AUM 163.16% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

First Eagle Investment Management New York $60.8B AUM 26.63% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

GIM

Granahan Investment Management Waltham, Massachusetts $2.81B AUM 83.9% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Bruce & Co's MASS Position: Q2 2026 in Review

Bruce & Co held its 908 Devices (MASS) position steady in Q2 2026 at 68,286 shares worth $594K. The position accounts for 0.16% of the portfolio, ranked #39.

Bruce & Co first reported a position in MASS in Q4 2022 and has held it in 15 quarters since. The position peaked at $766K in Q4 2023. 112 funds tracked by Wall St. Rank hold MASS as of Q2 2026.

Bruce & Co held 68,286 shares of 908 Devices worth $594K as of Q2 2026.
Bruce & Co left its 908 Devices share count unchanged in Q2 2026.
908 Devices made up 0.16% of Bruce & Co's portfolio in Q2 2026, its #39 holding.
Bruce & Co first reported a position in 908 Devices in Q4 2022 and has held it in 15 quarters since.
Bruce & Co's 908 Devices position peaked at $766K in Q4 2023.
112 funds tracked by Wall St. Rank held 908 Devices as of Q2 2026.

Based on Bruce & Co's 13F filing for Q2 2026, filed 14 Aug 2026.