Syon Capital’s Masimo MASI Stock Holding History

Syon Capital’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	-1,550	Closed	-$229K	–	911
2025 Q3	$229K	Sell	1,550 -647	-29%	-$98K	0.01%	746
2025 Q2	$370K	Buy	+2,197	New	+$351K	0.02%	471

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

Syon Capital's MASI Position: Q4 2025 in Review

Syon Capital sold out of Masimo (MASI) in Q4 2025, closing a stake of 1,550 shares — an estimated $229K sold.

Syon Capital first reported a position in MASI in Q2 2025 and held it in 2 quarters. The position peaked at $370K in Q2 2025. 390 funds tracked by Wall St. Rank hold MASI as of Q4 2025.

Syon Capital reported no remaining Masimo position as of Q4 2025 after selling out during the quarter.
Syon Capital sold 1,550 Masimo shares in Q4 2025, an estimated $229K.
Syon Capital first reported a position in Masimo in Q2 2025 and held it in 2 quarters.
Syon Capital's Masimo position peaked at $370K in Q2 2025.
390 funds tracked by Wall St. Rank held Masimo as of Q4 2025.

Based on Syon Capital's 13F filing for Q4 2025, filed 11 Feb 2026.