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ARK Investment Management’s 908 Devices MASS Stock Holding History

ARK 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
Q1 		$11.9M Sell
1,946,685
-39,301
-2% -$246K 0.09% 94
2025
Q4 		$10.4M Buy
1,985,986
+32,214
+2% +$225K 0.07% 109
2025
Q3 		$17.1M Sell
1,953,772
-694,506
-26% -$4.61M 0.1% 95
2025
Q2 		$18.9M Sell
2,648,278
-251,069
-9% -$1.39M 0.14% 75
2025
Q1 		$13M Buy
2,899,347
+110,781
+4% +$328K 0.13% 78
2024
Q4 		$6.13M Sell
2,788,566
-430,983
-13% -$1.23M 0.05% 104
2024
Q3 		$11.2M Sell
3,219,549
-718,082
-18% -$3.19M 0.1% 90
2024
Q2 		$20.3M Sell
3,937,631
-111,307
-3% -$672K 0.18% 66
2024
Q1 		$30.6M Sell
4,048,938
-297,641
-7% -$2.21M 0.21% 66
2023
Q4 		$48.8M Buy
4,346,579
+333,119
+8% +$2.28M 0.29% 47
2023
Q3 		$26.7M Buy
4,013,460
+40,555
+1% +$281K 0.2% 63
2023
Q2 		$27.3M Sell
3,972,905
-19,994
-0.5% -$161K 0.18% 70
2023
Q1 		$34.3M Buy
3,992,899
+303,424
+8% +$2.71M 0.24% 49
2022
Q4 		$28.1M Sell
3,689,475
-85,719
-2% -$1.04M 0.24% 54
2022
Q3 		$62.1M Buy
3,775,194
+146,974
+4% +$2.85M 0.43% 43
2022
Q2 		$50.5M Buy
3,628,220
+145,294
+4% +$2.44M 0.3% 53
2022
Q1 		$66.2M Buy
3,482,926
+486,533
+16% +$8.36M 0.28% 57
2021
Q4 		$77.5M Buy
2,996,393
+245,516
+9% +$7.22M 0.23% 66
2021
Q3 		$89.5M Buy
2,750,877
+296,520
+12% +$10.1M 0.21% 75
2021
Q2 		$95.1M Buy
2,454,357
+1,381,491
+129% +$62.6M 0.18% 91
2021
Q1 		$52M Buy
1,072,866
+635,618
+145% +$36.3M 0.1% 130
2020
Q4 		$24.9M Buy
+437,248
New +$25.5M 0.07% 128

Other funds holding MASS

FLAM
First Light Asset Management Edina, Minnesota $1.12B AUM 114.45% 1-Year Est. Return
AIC
AWM Investment Company New York $903M AUM 163.47% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
NIM
Needham Investment Management New York $1.96B AUM 101.23% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
First Eagle Investment Management
First Eagle Investment Management New York $59B AUM 32.99% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
GIM
Granahan Investment Management Waltham, Massachusetts $2.07B AUM 56.45% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
TCM
Tao Capital Management San Francisco, California $119M AUM 87.46% 1-Year Est. Return

ARK Investment Management's MASS Position: Q1 2026 in Review

ARK Investment Management reduced its 908 Devices (MASS) stake by 2% in Q1 2026, selling an estimated $246K and leaving 1,946,685 shares worth $11.9M. The position accounts for 0.09% of the portfolio, ranked #94.

ARK Investment Management first reported a position in MASS in Q4 2020 and has held it in 22 quarters since. The position peaked at $95.1M in Q2 2021. 112 funds tracked by Wall St. Rank hold MASS as of Q1 2026.

  • ARK Investment Management held 1,946,685 shares of 908 Devices worth $11.9M as of Q1 2026.
  • ARK Investment Management sold 39,301 908 Devices shares in Q1 2026, an estimated $246K.
  • 908 Devices made up 0.09% of ARK Investment Management's portfolio in Q1 2026, its #94 holding.
  • ARK Investment Management first reported a position in 908 Devices in Q4 2020 and has held it in 22 quarters since.
  • ARK Investment Management's 908 Devices position peaked at $95.1M in Q2 2021.
  • 112 funds tracked by Wall St. Rank held 908 Devices as of Q1 2026.

Based on ARK Investment Management's 13F filing for Q1 2026, filed 12 May 2026.