Balyasny Asset Management’s Masimo MASI Stock Holding History

Balyasny 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	-85,100	Closed	-$15.1M	–	3315
2026 Q1	$15.1M	Buy	+85,100	New	+$13.4M	0.02%	813
2024 Q1	–	Sell	-107,400	Closed	-$12.6M	–	2903
2023 Q4	$12.6M	Sell	107,400 -256,600	-70%	-$23.9M	0.02%	781
2023 Q3	$31.9M	Buy	364,000 +299,000	+460%	+$34.8M	0.07%	405
2023 Q2	$10.7M	Buy	65,000 +26,200	+68%	+$4.56M	0.02%	744
2023 Q1	$7.16M	Buy	+38,800	New	+$6.55M	0.02%	926
2018 Q2	–	Sell	-125,000	Closed	-$11M	–	1998
2018 Q1	$11M	Buy	+125,000	New	+$10.9M	0.05%	498

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

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

Balyasny Asset Management sold out of Masimo (MASI) in Q2 2026, closing a stake of 770,986 shares — an estimated $137M sold.

Balyasny Asset Management first reported a position in MASI in Q2 2013 and held it in 27 quarters. The position peaked at $137M in Q1 2026. 2 funds tracked by Wall St. Rank hold MASI as of Q2 2026.

Balyasny Asset Management reported no remaining Masimo position as of Q2 2026 after selling out during the quarter.
Balyasny Asset Management sold 770,986 Masimo shares in Q2 2026, an estimated $137M.
Balyasny Asset Management first reported a position in Masimo in Q2 2013 and held it in 27 quarters.
Balyasny Asset Management's Masimo position peaked at $137M in Q1 2026.
2 funds tracked by Wall St. Rank held Masimo as of Q2 2026.

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