OCAM
MASI

Onex Canada Asset Management’s Masimo MASI Stock Holding History

Onex Canada 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
Q1 		– Sell
-25,805
Closed -$3.36M – 82
2025
Q4 		$3.36M Sell
25,805
-2,118
-8% -$303K 0.47% 56
2025
Q3 		$4.12M Buy
27,923
+19,699
+240% +$2.98M 0.52% 53
2025
Q2 		$1.38M Sell
8,224
-9,231
-53% -$1.47M 0.17% 87
2025
Q1 		$2.91M Sell
17,455
-19,606
-53% -$3.4M 0.37% 70
2024
Q4 		$6.13M Buy
37,061
+22,636
+157% +$3.57M 0.73% 41
2024
Q3 		$1.93M Buy
+14,425
New +$1.67M 0.23% 97

Other funds holding MASI

BlackRock
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
Barclays London, United Kingdom $416B AUM 33.63% 1-Year Est. Return
HI
HBK Investments Dallas, Texas $9.85B AUM 55.6% 1-Year Est. Return
Massachusetts Financial Services
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
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Onex Canada Asset Management's MASI Position: Q1 2026 in Review

Onex Canada Asset Management sold out of Masimo (MASI) in Q1 2026, closing a stake of 25,805 shares — an estimated $3.36M sold.

Onex Canada Asset Management first reported a position in MASI in Q3 2024 and held it in 6 quarters. The position peaked at $6.13M in Q4 2024. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • Onex Canada Asset Management reported no remaining Masimo position as of Q1 2026 after selling out during the quarter.
  • Onex Canada Asset Management sold 25,805 Masimo shares in Q1 2026, an estimated $3.36M.
  • Onex Canada Asset Management first reported a position in Masimo in Q3 2024 and held it in 6 quarters.
  • Onex Canada Asset Management's Masimo position peaked at $6.13M in Q4 2024.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on Onex Canada Asset Management's 13F filing for Q1 2026, filed 15 May 2026.