PCH
MASI

Polar Capital Holdings’s Masimo MASI Stock Holding History

Polar Capital Holdings’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
2025
Q2 		– Sell
-6,023
Closed -$1M – 295
2025
Q1 		$1M Hold
6,023
– – 0.01% 274
2024
Q4 		$996K Buy
+6,023
New +$951K 0.01% 280
2022
Q1 		– Sell
-13,544
Closed -$3.96K – 477
2021
Q4 		$3.96K Hold
13,544
– – 0.01% 270
2021
Q3 		$3.67K Sell
13,544
-8,068
-37% -$2.19M 0.02% 290
2021
Q2 		$5.24K Buy
21,612
+1,788
+9% +$408K 0.02% 276
2021
Q1 		$4.55M Hold
19,824
– – 0.03% 255
2020
Q4 		$5.32M Buy
+19,824
New +$4.94M 0.03% 245

Other funds holding MASI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
PCM
Politan Capital Management New York $985M AUM 3.12% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Holocene Advisors
Holocene Advisors New York $41.5B AUM 42.97% 1-Year Est. Return
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return

Polar Capital Holdings's MASI Position: Q2 2025 in Review

Polar Capital Holdings sold out of Masimo (MASI) in Q2 2025, closing a stake of 6,023 shares — an estimated $1M sold.

Polar Capital Holdings first reported a position in MASI in Q4 2020 and held it in 7 quarters. The position peaked at $5.32M in Q4 2020. 378 funds tracked by Wall St. Rank hold MASI as of Q2 2025.

  • Polar Capital Holdings reported no remaining Masimo position as of Q2 2025 after selling out during the quarter.
  • Polar Capital Holdings sold 6,023 Masimo shares in Q2 2025, an estimated $1M.
  • Polar Capital Holdings first reported a position in Masimo in Q4 2020 and held it in 7 quarters.
  • Polar Capital Holdings's Masimo position peaked at $5.32M in Q4 2020.
  • 378 funds tracked by Wall St. Rank held Masimo as of Q2 2025.

Based on Polar Capital Holdings's 13F filing for Q2 2025, filed 14 Aug 2025.