Weiss Asset Management’s Masimo MASI Stock Holding History

Weiss Asset 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
2026 Q2	–	Sell	-112,600	Closed	-$20M	–	761
2026 Q1	$20M	Buy	+112,600	New	+$17.7M	0.34%	63

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

Weiss Asset Management's MASI Position: Q2 2026 in Review

Weiss Asset Management sold out of Masimo (MASI) in Q2 2026, closing a stake of 112,600 shares — an estimated $20M sold.

Weiss Asset Management first reported a position in MASI in Q1 2026 and held it in 1 quarter. The position peaked at $20M in Q1 2026. 2 funds tracked by Wall St. Rank hold MASI as of Q2 2026.

Weiss Asset Management reported no remaining Masimo position as of Q2 2026 after selling out during the quarter.
Weiss Asset Management sold 112,600 Masimo shares in Q2 2026, an estimated $20M.
Weiss Asset Management first reported a position in Masimo in Q1 2026 and held it in 1 quarter.
Weiss Asset Management's Masimo position peaked at $20M in Q1 2026.
2 funds tracked by Wall St. Rank held Masimo as of Q2 2026.

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