Marex Group’s Masimo MASI Stock Holding History

Marex Group’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 Q4	–	Sell	-1,486	Closed	-$219K	–	1076
2025 Q3	$219K	Buy	+1,486	New	+$225K	﹤0.01%	695

Other funds holding MASI

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

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 Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

NCMU

NAYA Capital Management (UK) London, United Kingdom $1.18B AUM 13.14% 1-Year Est. Return

Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return

Marex Group's MASI Position: Q4 2025 in Review

Marex Group sold out of Masimo (MASI) in Q4 2025, closing a stake of 1,486 shares — an estimated $219K sold.

Marex Group first reported a position in MASI in Q3 2025 and held it in 1 quarter. The position peaked at $219K in Q3 2025. 390 funds tracked by Wall St. Rank hold MASI as of Q4 2025.

Marex Group reported no remaining Masimo position as of Q4 2025 after selling out during the quarter.
Marex Group sold 1,486 Masimo shares in Q4 2025, an estimated $219K.
Marex Group first reported a position in Masimo in Q3 2025 and held it in 1 quarter.
Marex Group's Masimo position peaked at $219K in Q3 2025.
390 funds tracked by Wall St. Rank held Masimo as of Q4 2025.

Based on Marex Group's 13F filing for Q4 2025, filed 12 Feb 2026.