Bayesian Capital Management’s Masimo MASI Stock Holding History

Bayesian Capital 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
2025 Q4	–	Sell	-5,779	Closed	-$853K	–	366
2025 Q3	$853K	Buy	+5,779	New	+$875K	0.17%	185
2025 Q2	–	Sell	-6,000	Closed	-$1,000K	–	742
2025 Q1	$1,000K	Buy	+6,000	New	+$1.04M	0.17%	169
2024 Q3	–	Sell	-9,307	Closed	-$1.17M	–	903
2024 Q2	$1.17M	Buy	+9,307	New	+$1.23M	0.13%	203
2022 Q3	–	Sell	-1,764	Closed	-$231K	–	895
2022 Q2	$231K	Buy	+1,764	New	+$236K	0.04%	578
2018 Q3	–	Sell	-2,471	Closed	-$241K	–	732
2018 Q2	$241K	Buy	+2,471	New	+$235K	0.05%	469
2017 Q2	–	Sell	-2,540	Closed	-$237K	–	531
2017 Q1	$237K	Sell	2,540 -7,905	-76%	-$651K	0.11%	305
2016 Q4	$704K	Buy	10,445 +5,566	+114%	+$342K	0.17%	222
2016 Q3	$290K	Sell	4,879 -4,221	-46%	-$238K	0.19%	204
2016 Q2	$478K	Buy	+9,100	New	+$429K	0.29%	124

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

Bayesian Capital Management's MASI Position: Q4 2025 in Review

Bayesian Capital Management sold out of Masimo (MASI) in Q4 2025, closing a stake of 5,779 shares — an estimated $853K sold.

Bayesian Capital Management first reported a position in MASI in Q2 2016 and held it in 9 quarters. The position peaked at $1.17M in Q2 2024. 390 funds tracked by Wall St. Rank hold MASI as of Q4 2025.

Bayesian Capital Management reported no remaining Masimo position as of Q4 2025 after selling out during the quarter.
Bayesian Capital Management sold 5,779 Masimo shares in Q4 2025, an estimated $853K.
Bayesian Capital Management first reported a position in Masimo in Q2 2016 and held it in 9 quarters.
Bayesian Capital Management's Masimo position peaked at $1.17M in Q2 2024.
390 funds tracked by Wall St. Rank held Masimo as of Q4 2025.

Based on Bayesian Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.