Jim Simons’s 908 Devices MASS Stock Holding History

Jim Simons’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	$1.67M	Sell	191,900 -38,300	-17%	-$294K	﹤0.01%	2066
2026 Q1	$1.41M	Buy	230,200 +8,100	+4%	+$50.7K	﹤0.01%	2089
2025 Q4	$1.17M	Buy	222,100 +12,800	+6%	+$89.4K	﹤0.01%	2189
2025 Q3	$1.83M	Buy	209,300 +35,200	+20%	+$234K	﹤0.01%	2134
2025 Q2	$1.24M	Buy	174,100 +29,500	+20%	+$164K	﹤0.01%	2391
2025 Q1	$648K	Sell	144,600 -150,356	-51%	-$445K	﹤0.01%	2631
2024 Q4	$649K	Sell	294,956 -27,444	-9%	-$78.6K	﹤0.01%	2721
2024 Q3	$1.12M	Buy	322,400 +126,900	+65%	+$563K	﹤0.01%	2371
2024 Q2	$1.01M	Buy	195,500 +86,500	+79%	+$522K	﹤0.01%	2315
2024 Q1	$823K	Buy	109,000 +12,100	+12%	+$89.7K	﹤0.01%	2602
2023 Q4	$1.09M	Buy	96,900 +12,200	+14%	+$83.4K	﹤0.01%	2353
2023 Q3	$564K	Sell	84,700 -30,000	-26%	-$208K	﹤0.01%	2652
2023 Q2	$787K	Sell	114,700 -37,400	-25%	-$301K	﹤0.01%	2615
2023 Q1	$1.31M	Sell	152,100 -80,300	-35%	-$717K	﹤0.01%	2292
2022 Q4	$1.77M	Buy	232,400 +65,700	+39%	+$795K	﹤0.01%	2147
2022 Q3	$2.74M	Buy	166,700 +29,000	+21%	+$563K	﹤0.01%	1817
2022 Q2	$2.84M	Buy	137,700 +98,700	+253%	+$1.66M	﹤0.01%	1946
2022 Q1	$741K	Buy	+39,000	New	+$670K	﹤0.01%	2926

Other funds holding MASS

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

ARK Investment Management St. Petersburg, Florida $15.5B AUM 50.54% 1-Year Est. Return

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

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

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

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Jim Simons's MASS Position: Q2 2026 in Review

Jim Simons reduced its 908 Devices (MASS) stake by 17% in Q2 2026, selling an estimated $294K and leaving 191,900 shares worth $1.67M. The position accounts for ﹤0.01% of the portfolio, ranked #2066.

Jim Simons first reported a position in MASS in Q1 2022 and has held it in 18 quarters since. The position peaked at $2.84M in Q2 2022. 111 funds tracked by Wall St. Rank hold MASS as of Q2 2026.

Jim Simons held 191,900 shares of 908 Devices worth $1.67M as of Q2 2026.
Jim Simons sold 38,300 908 Devices shares in Q2 2026, an estimated $294K.
908 Devices made up ﹤0.01% of Jim Simons's portfolio in Q2 2026, its #2066 holding.
Jim Simons first reported a position in 908 Devices in Q1 2022 and has held it in 18 quarters since.
Jim Simons's 908 Devices position peaked at $2.84M in Q2 2022.
111 funds tracked by Wall St. Rank held 908 Devices as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.