Needham Investment Management’s 908 Devices MASS Stock Holding History

Needham Investment Management’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	$15.8M	Buy	1,820,620 +580,620	+47%	+$4.46M	0.48%	55
2026 Q1	$7.59M	Buy	1,240,000 +470,000	+61%	+$2.94M	0.39%	67
2025 Q4	$4.04M	Buy	770,000 +548,000	+247%	+$3.83M	0.26%	94
2025 Q3	$1.94M	Buy	222,000 +72,000	+48%	+$478K	0.14%	114
2025 Q2	$1.07M	Sell	150,000 -50,000	-25%	-$278K	0.09%	124
2025 Q1	$896K	Hold	200,000	–	–	0.08%	130
2024 Q4	$440K	Buy	200,000 +100,000	+100%	+$286K	0.03%	143
2024 Q3	$347K	Buy	100,000 +50,000	+100%	+$222K	0.03%	142
2024 Q2	$258K	Buy	+50,000	New	+$302K	0.02%	141

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

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

EIM

Essex Investment Management Boston, Massachusetts $763M AUM 108.51% 1-Year Est. Return

Needham Investment Management's MASS Position: Q2 2026 in Review

Needham Investment Management increased its 908 Devices (MASS) stake by 47% in Q2 2026, buying an estimated $4.46M and bringing the position to 1,820,620 shares worth $15.8M. The position accounts for 0.48% of the portfolio, ranked #55.

Needham Investment Management first reported a position in MASS in Q2 2024 and has held it in 9 quarters since. 112 funds tracked by Wall St. Rank hold MASS as of Q2 2026.

Needham Investment Management held 1,820,620 shares of 908 Devices worth $15.8M as of Q2 2026.
Needham Investment Management bought 580,620 908 Devices shares in Q2 2026, an estimated $4.46M.
908 Devices made up 0.48% of Needham Investment Management's portfolio in Q2 2026, its #55 holding.
Needham Investment Management first reported a position in 908 Devices in Q2 2024 and has held it in 9 quarters since.
112 funds tracked by Wall St. Rank held 908 Devices as of Q2 2026.

Based on Needham Investment Management's 13F filing for Q2 2026, filed 14 Aug 2026.