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MASI

Dmitry Balyasny’s Masimo MASI Stock Holding History

Dmitry Balyasny’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

IA
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

Dmitry Balyasny's MASI Position: Q2 2026 in Review

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

Dmitry Balyasny 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.

  • Dmitry Balyasny reported no remaining Masimo position as of Q2 2026 after selling out during the quarter.
  • Dmitry Balyasny sold 770,986 Masimo shares in Q2 2026, an estimated $137M.
  • Dmitry Balyasny first reported a position in Masimo in Q2 2013 and held it in 27 quarters.
  • Dmitry Balyasny'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.