CM
MASI

Castleark Management’s Masimo MASI Stock Holding History

Castleark Management’s Portfolio MASI Stock Details MASI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2023
Q2 		– Sell
-35,240
Closed -$6.5M – 296
2023
Q1 		$6.5M Buy
+35,240
New +$5.94M 0.32% 63
2020
Q2 		– Sell
-66,437
Closed -$11.8M – 367
2020
Q1 		$11.8M Sell
66,437
-2,520
-4% -$432K 0.7% 39
2019
Q4 		$10.9M Sell
68,957
-9,266
-12% -$1.39M 0.44% 57
2019
Q3 		$11.6M Sell
78,223
-6,390
-8% -$971K 0.47% 54
2019
Q2 		$12.6M Buy
84,613
+24,630
+41% +$3.38M 0.48% 56
2019
Q1 		$8.29M Buy
59,983
+12,008
+25% +$1.51M 0.31% 104
2018
Q4 		$5.15M Sell
47,975
-19,580
-29% -$2.18M 0.22% 142
2018
Q3 		$8.41M Buy
+67,555
New +$7.49M 0.24% 135

Other funds holding MASI

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 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
PCM
Politan Capital Management New York $985M AUM 3.12% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return
LIP
Liontrust Investment Partners London, United Kingdom $5.86B AUM 23.75% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Castleark Management's MASI Position: Q2 2023 in Review

Castleark Management sold out of Masimo (MASI) in Q2 2023, closing a stake of 35,240 shares — an estimated $6.5M sold.

Castleark Management first reported a position in MASI in Q3 2018 and held it in 8 quarters. The position peaked at $12.6M in Q2 2019. 415 funds tracked by Wall St. Rank hold MASI as of Q2 2023.

  • Castleark Management reported no remaining Masimo position as of Q2 2023 after selling out during the quarter.
  • Castleark Management sold 35,240 Masimo shares in Q2 2023, an estimated $6.5M.
  • Castleark Management first reported a position in Masimo in Q3 2018 and held it in 8 quarters.
  • Castleark Management's Masimo position peaked at $12.6M in Q2 2019.
  • 415 funds tracked by Wall St. Rank held Masimo as of Q2 2023.

Based on Castleark Management's 13F filing for Q2 2023, filed 16 Aug 2023.