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RTW Investments’s 908 Devices MASS Stock Holding History

RTW 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
2023
Q1 		– Sell
-312,000
Closed -$2.38M – 68
2022
Q4 		$2.38M Hold
312,000
– – 0.05% 71
2022
Q3 		$5.13M Sell
312,000
-200,957
-39% -$3.9M 0.12% 66
2022
Q2 		$10.6M Buy
512,957
+472,957
+1,182% +$7.95M 0.27% 54
2022
Q1 		$760K Hold
40,000
– – 0.02% 100
2021
Q4 		$1.03M Hold
40,000
– – 0.02% 118
2021
Q3 		$1.3M Hold
40,000
– – 0.02% 115
2021
Q2 		$1.55M Hold
40,000
– – 0.02% 109
2021
Q1 		$1.94M Hold
40,000
– – 0.03% 104
2020
Q4 		$2.28M Buy
+40,000
New +$2.34M 0.04% 92

Other funds holding MASS

AIM
ARK Investment Management St. Petersburg, Florida $12.9B AUM 64.92% 1-Year Est. Return
EAM
Eventide Asset Management Boston, Massachusetts $6.05B AUM 76.64% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return
FAM
Fred Alger Management New York $22.8B AUM 64.63% 1-Year Est. Return
GIM
Granahan Investment Management Waltham, Massachusetts $2.07B AUM 56.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
ITP
Iron Triangle Partners Cos Cob, Connecticut $875M AUM 49.85% 1-Year Est. Return
PIM
Platinum Investment Management Sydney Australia 2000, Australia $397M AUM 63.96% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

RTW Investments's MASS Position: Q1 2023 in Review

RTW Investments sold out of 908 Devices (MASS) in Q1 2023, closing a stake of 312,000 shares — an estimated $2.38M sold.

RTW Investments first reported a position in MASS in Q4 2020 and held it in 9 quarters. The position peaked at $10.6M in Q2 2022. 83 funds tracked by Wall St. Rank hold MASS as of Q1 2023.

  • RTW Investments reported no remaining 908 Devices position as of Q1 2023 after selling out during the quarter.
  • RTW Investments sold 312,000 908 Devices shares in Q1 2023, an estimated $2.38M.
  • RTW Investments first reported a position in 908 Devices in Q4 2020 and held it in 9 quarters.
  • RTW Investments's 908 Devices position peaked at $10.6M in Q2 2022.
  • 83 funds tracked by Wall St. Rank held 908 Devices as of Q1 2023.

Based on RTW Investments's 13F filing for Q1 2023, filed 15 May 2023.