Two Sigma Securities’s Masimo MASI Stock Holding History

Two Sigma Securities’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
2026 Q1	$334K	Sell	1,875 -836	-31%	-$131K	0.04%	705
2025 Q4	$353K	Buy	+2,711	New	+$388K	0.05%	555
2024 Q3	–	Sell	-2,659	Closed	-$335K	–	3330
2024 Q2	$335K	Buy	+2,659	New	+$350K	﹤0.01%	1902
2023 Q4	–	Sell	-11,340	Closed	-$1.06M	–	3364
2023 Q3	$994K	Buy	11,340 +9,237	+439%	+$1.08M	0.01%	1047
2023 Q2	$346K	Buy	+2,103	New	+$366K	0.01%	1747
2022 Q4	–	Sell	-1,916	Closed	-$270K	–	2995
2022 Q3	$270K	Buy	+1,916	New	+$280K	0.01%	1677
2021 Q4	–	Sell	-1,222	Closed	-$331K	–	1846
2021 Q3	$331K	Buy	+1,222	New	+$331K	0.01%	959
2018 Q4	–	Sell	-2,111	Closed	-$263K	–	2551
2018 Q3	$263K	Buy	+2,111	New	+$234K	﹤0.01%	1864
2017 Q2	–	Sell	-6,247	Closed	-$583K	–	1044
2017 Q1	$583K	Buy	+6,247	New	+$514K	0.11%	167

Other funds holding MASI

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

PCM

Politan Capital Management New York $985M AUM 3.12% 1-Year Est. Return

PCM

Pentwater Capital Management Naples, Florida $19.3B AUM 58.13% 1-Year Est. Return

Barclays London, United Kingdom $416B AUM 33.63% 1-Year Est. Return

HBK Investments Dallas, Texas $9.85B AUM 55.6% 1-Year Est. Return

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

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

Two Sigma Securities's MASI Position: Q1 2026 in Review

Two Sigma Securities reduced its Masimo (MASI) stake by 31% in Q1 2026, selling an estimated $131K and leaving 1,875 shares worth $334K. The position accounts for 0.04% of the portfolio, ranked #705.

Two Sigma Securities first reported a position in MASI in Q1 2017 and has held it in 9 quarters since. The position peaked at $994K in Q3 2023. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

Two Sigma Securities held 1,875 shares of Masimo worth $334K as of Q1 2026.
Two Sigma Securities sold 836 Masimo shares in Q1 2026, an estimated $131K.
Masimo made up 0.04% of Two Sigma Securities's portfolio in Q1 2026, its #705 holding.
Two Sigma Securities first reported a position in Masimo in Q1 2017 and has held it in 9 quarters since.
Two Sigma Securities's Masimo position peaked at $994K in Q3 2023.
445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on Two Sigma Securities's 13F filing for Q1 2026, filed 15 May 2026.