David Shaw’s 908 Devices MASS Stock Holding History

David Shaw’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	$656K	Buy	+75,446	New	+$579K	﹤0.01%	4032
2025 Q4	–	Sell	-25,603	Closed	-$224K	–	4843
2025 Q3	$224K	Sell	25,603 -160,612	-86%	-$1.07M	﹤0.01%	4238
2025 Q2	$1.33M	Sell	186,215 -153,500	-45%	-$853K	﹤0.01%	3039
2025 Q1	$1.52M	Buy	339,715 +253,855	+296%	+$752K	﹤0.01%	2808
2024 Q4	$189K	Buy	85,860 +28,263	+49%	+$80.9K	﹤0.01%	4098
2024 Q3	$200K	Buy	57,597 +41,873	+266%	+$186K	﹤0.01%	4159
2024 Q2	$81K	Buy	+15,724	New	+$94.9K	﹤0.01%	4188
2021 Q2	–	Sell	-11,971	Closed	-$581K	–	4900
2021 Q1	$581K	Buy	+11,971	New	+$684K	﹤0.01%	3438

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 $59.9B AUM 27.01% 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

David Shaw's MASS Position: Q2 2026 in Review

David Shaw opened a new position in 908 Devices (MASS) in Q2 2026: 75,446 shares worth $656K. The stake represents ﹤0.01% of the portfolio and ranks #4032 among its holdings. This is a return to the name: David Shaw previously reported a position in MASS as recently as Q3 2025.

David Shaw first reported a position in MASS in Q1 2021 and has held it in 8 quarters since. The position peaked at $1.52M in Q1 2025. 111 funds tracked by Wall St. Rank hold MASS as of Q2 2026.

David Shaw held 75,446 shares of 908 Devices worth $656K as of Q2 2026.
908 Devices was a new David Shaw position in Q2 2026.
908 Devices made up ﹤0.01% of David Shaw's portfolio in Q2 2026, its #4032 holding.
David Shaw first reported a position in 908 Devices in Q1 2021 and has held it in 8 quarters since.
David Shaw's 908 Devices position peaked at $1.52M in Q1 2025.
111 funds tracked by Wall St. Rank held 908 Devices as of Q2 2026.

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