AMG
MASI

Ace Management Global’s Masimo MASI Stock Holding History

Ace Management Global’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
Q1 		– Sell
-47,694
Closed -$7.88M – 1
2024
Q4 		$7.88M Sell
47,694
-917,810
-95% -$145M 100% 1
2024
Q3 		$129M Sell
965,504
-95,415
-9% -$11.1M 38.42% 1
2024
Q2 		$134M Sell
1,060,919
-108,433
-9% -$14.3M 39.24% 1
2024
Q1 		$172M Buy
+1,169,352
New +$151M 63.47% 1

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
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 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
DCP
Durable Capital Partners Bethesda, Maryland $9.71B AUM 26.27% 1-Year Est. Return

Ace Management Global's MASI Position: Q1 2025 in Review

Ace Management Global sold out of Masimo (MASI) in Q1 2025, closing a stake of 47,694 shares — an estimated $7.88M sold.

Ace Management Global first reported a position in MASI in Q1 2024 and held it in 4 quarters. The position peaked at $172M in Q1 2024. 394 funds tracked by Wall St. Rank hold MASI as of Q1 2025.

  • Ace Management Global reported no remaining Masimo position as of Q1 2025 after selling out during the quarter.
  • Ace Management Global sold 47,694 Masimo shares in Q1 2025, an estimated $7.88M.
  • Ace Management Global first reported a position in Masimo in Q1 2024 and held it in 4 quarters.
  • Ace Management Global's Masimo position peaked at $172M in Q1 2024.
  • 394 funds tracked by Wall St. Rank held Masimo as of Q1 2025.

Based on Ace Management Global's 13F filing for Q1 2025.