XT
MASS icon

XTX Topco’s 908 Devices MASS Stock Holding History

XTX Topco’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 		– Sell
-41,365
Closed -$253K – 4484
2026
Q1 		$253K Buy
41,365
+21,513
+108% +$135K ﹤0.01% 2629
2025
Q4 		$104K Sell
19,852
-25,184
-56% -$176K ﹤0.01% 2629
2025
Q3 		$395K Buy
+45,036
New +$299K 0.02% 1273
2025
Q2 		– Sell
-38,208
Closed -$171K – 2840
2025
Q1 		$171K Sell
38,208
-13,988
-27% -$41.4K 0.01% 1741
2024
Q4 		$115K Buy
+52,196
New +$149K 0.01% 1738

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

XTX Topco's MASS Position: Q2 2026 in Review

XTX Topco sold out of 908 Devices (MASS) in Q2 2026, closing a stake of 41,365 shares — an estimated $253K sold.

XTX Topco first reported a position in MASS in Q4 2024 and held it in 5 quarters. The position peaked at $395K in Q3 2025. 112 funds tracked by Wall St. Rank hold MASS as of Q2 2026.

  • XTX Topco reported no remaining 908 Devices position as of Q2 2026 after selling out during the quarter.
  • XTX Topco sold 41,365 908 Devices shares in Q2 2026, an estimated $253K.
  • XTX Topco first reported a position in 908 Devices in Q4 2024 and held it in 5 quarters.
  • XTX Topco's 908 Devices position peaked at $395K in Q3 2025.
  • 112 funds tracked by Wall St. Rank held 908 Devices as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.