Polar Asset Management Partners’s Masimo MASI Stock Holding History

Polar Asset Management Partners’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 Q2	–	Sell	-232,026	Closed	-$41.3M	–	919
2026 Q1	$41.3M	Buy	+232,026	New	+$36.4M	0.82%	21
2024 Q1	–	Sell	-40,200	Closed	-$4.71M	–	843
2023 Q4	$4.71M	Buy	+40,200	New	+$3.75M	0.08%	228

Other funds holding MASI

IFP Advisors Tampa, Florida $5.54B AUM 27.43% 1-Year Est. Return

HNB

Huntington National Bank Columbus, Ohio $20.6B AUM 34.61% 1-Year Est. Return

Polar Asset Management Partners's MASI Position: Q2 2026 in Review

Polar Asset Management Partners sold out of Masimo (MASI) in Q2 2026, closing a stake of 232,026 shares — an estimated $41.3M sold.

Polar Asset Management Partners first reported a position in MASI in Q4 2023 and held it in 2 quarters. The position peaked at $41.3M in Q1 2026. 2 funds tracked by Wall St. Rank hold MASI as of Q2 2026.

Polar Asset Management Partners reported no remaining Masimo position as of Q2 2026 after selling out during the quarter.
Polar Asset Management Partners sold 232,026 Masimo shares in Q2 2026, an estimated $41.3M.
Polar Asset Management Partners first reported a position in Masimo in Q4 2023 and held it in 2 quarters.
Polar Asset Management Partners's Masimo position peaked at $41.3M in Q1 2026.
2 funds tracked by Wall St. Rank held Masimo as of Q2 2026.

Based on Polar Asset Management Partners's 13F filing for Q2 2026, filed 14 Aug 2026.