Cathie Wood
MASS icon

Cathie Wood’s 908 Devices MASS Stock Holding History

Cathie Wood’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 		$17.6M Buy
2,027,920
+81,235
+4% +$624K 0.11% 94
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 $1.65B AUM 203.21% 1-Year Est. Return
AIC
AWM Investment Company New York $1.15B AUM 201.65% 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 $59.9B AUM 27.01% 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
EIM
Essex Investment Management Boston, Massachusetts $763M AUM 108.51% 1-Year Est. Return

Cathie Wood's MASS Position: Q2 2026 in Review

Cathie Wood increased its 908 Devices (MASS) stake by 4.2% in Q2 2026, buying an estimated $624K and bringing the position to 2,027,920 shares worth $17.6M. The position accounts for 0.11% of the portfolio, ranked #94.

Cathie Wood first reported a position in MASS in Q4 2020 and has held it in 23 quarters since. The position peaked at $95.1M in Q2 2021. 111 funds tracked by Wall St. Rank hold MASS as of Q2 2026.

  • Cathie Wood held 2,027,920 shares of 908 Devices worth $17.6M as of Q2 2026.
  • Cathie Wood bought 81,235 908 Devices shares in Q2 2026, an estimated $624K.
  • 908 Devices made up 0.11% of Cathie Wood's portfolio in Q2 2026, its #94 holding.
  • Cathie Wood first reported a position in 908 Devices in Q4 2020 and has held it in 23 quarters since.
  • Cathie Wood's 908 Devices position peaked at $95.1M in Q2 2021.
  • 111 funds tracked by Wall St. Rank held 908 Devices as of Q2 2026.

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