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Granahan Investment Management’s 908 Devices MASS Stock Holding History

Granahan 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 		$6.02M Sell
692,092
-2,978
-0.4% -$22.9K 0.21% 105
2026
Q1 		$4.25M Buy
695,070
+603,929
+663% +$3.78M 0.21% 110
2025
Q4 		$478K Buy
91,141
+26,803
+42% +$187K 0.02% 150
2025
Q3 		$564K Buy
+64,338
New +$428K 0.02% 139
2025
Q1 		– Sell
-522,786
Closed -$1.15M – 177
2024
Q4 		$1.15M Sell
522,786
-338,647
-39% -$970K 0.05% 155
2024
Q3 		$2.99M Sell
861,433
-58,196
-6% -$258K 0.12% 155
2024
Q2 		$4.74M Sell
919,629
-814,743
-47% -$4.92M 0.19% 128
2024
Q1 		$13.1M Sell
1,734,372
-304,286
-15% -$2.26M 0.46% 65
2023
Q4 		$22.9M Buy
2,038,658
+195,368
+11% +$1.34M 0.76% 40
2023
Q3 		$12.3M Buy
1,843,290
+57,537
+3% +$398K 0.44% 68
2023
Q2 		$12.3M Buy
1,785,753
+26,777
+2% +$215K 0.38% 76
2023
Q1 		$15.1M Buy
1,758,976
+654,072
+59% +$5.84M 0.46% 64
2022
Q4 		$8.42M Buy
1,104,904
+137,540
+14% +$1.66M 0.26% 103
2022
Q3 		$15.9M Buy
967,364
+67,109
+7% +$1.3M 0.52% 54
2022
Q2 		$18.5M Buy
900,255
+47,543
+6% +$799K 0.63% 40
2022
Q1 		$16.2M Buy
852,712
+57,229
+7% +$984K 0.4% 65
2021
Q4 		$20.6M Buy
795,483
+163,731
+26% +$4.82M 0.42% 63
2021
Q3 		$20.5M Buy
631,752
+59,902
+10% +$2.03M 0.39% 62
2021
Q2 		$22.2M Buy
571,850
+118,704
+26% +$5.38M 0.41% 59
2021
Q1 		$22M Buy
+453,146
New +$25.9M 0.47% 48

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
State Street
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

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

Granahan Investment Management reduced its 908 Devices (MASS) stake by 0.43% in Q2 2026, selling an estimated $22.9K and leaving 692,092 shares worth $6.02M. The position accounts for 0.21% of the portfolio, ranked #105.

Granahan Investment Management first reported a position in MASS in Q1 2021 and has held it in 20 quarters since. The position peaked at $22.9M in Q4 2023. 112 funds tracked by Wall St. Rank hold MASS as of Q2 2026.

  • Granahan Investment Management held 692,092 shares of 908 Devices worth $6.02M as of Q2 2026.
  • Granahan Investment Management sold 2,978 908 Devices shares in Q2 2026, an estimated $22.9K.
  • 908 Devices made up 0.21% of Granahan Investment Management's portfolio in Q2 2026, its #105 holding.
  • Granahan Investment Management first reported a position in 908 Devices in Q1 2021 and has held it in 20 quarters since.
  • Granahan Investment Management's 908 Devices position peaked at $22.9M in Q4 2023.
  • 112 funds tracked by Wall St. Rank held 908 Devices as of Q2 2026.

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