SEI Investments
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SEI Investments’s 908 Devices MASS Stock Holding History

SEI Investments’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 		$676K Sell
77,719
-87,175
-53% -$669K ﹤0.01% 2510
2026
Q1 		$1.01M Buy
164,894
+82,934
+101% +$519K ﹤0.01% 2346
2025
Q4 		$430K Buy
+81,960
New +$573K ﹤0.01% 2577

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
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
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
First Eagle Investment Management
First Eagle Investment Management New York $60.8B AUM 26.63% 1-Year Est. Return
Geode Capital Management
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
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

SEI Investments's MASS Position: Q2 2026 in Review

SEI Investments reduced its 908 Devices (MASS) stake by 53% in Q2 2026, selling an estimated $669K and leaving 77,719 shares worth $676K. The position accounts for ﹤0.01% of the portfolio, ranked #2510.

SEI Investments first reported a position in MASS in Q4 2025 and has held it in 3 quarters since. The position peaked at $1.01M in Q1 2026. 112 funds tracked by Wall St. Rank hold MASS as of Q2 2026.

  • SEI Investments held 77,719 shares of 908 Devices worth $676K as of Q2 2026.
  • SEI Investments sold 87,175 908 Devices shares in Q2 2026, an estimated $669K.
  • 908 Devices made up ﹤0.01% of SEI Investments's portfolio in Q2 2026, its #2510 holding.
  • SEI Investments first reported a position in 908 Devices in Q4 2025 and has held it in 3 quarters since.
  • SEI Investments's 908 Devices position peaked at $1.01M in Q1 2026.
  • 112 funds tracked by Wall St. Rank held 908 Devices as of Q2 2026.

Based on SEI Investments's 13F filing for Q2 2026, filed 14 Aug 2026.