MCM
MASI

MAI Capital Management’s Masimo MASI Stock Holding History

MAI Capital 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 		$162K Buy
913
+774
+557% +$121K ﹤0.01% 1572
2025
Q4 		$18.1K Buy
139
+62
+81% +$8.88K ﹤0.01% 2567
2025
Q3 		$11.4K Sell
77
-125
-62% -$18.9K ﹤0.01% 2688
2025
Q2 		$34K Buy
202
+129
+177% +$20.6K ﹤0.01% 2078
2025
Q1 		$12.2K Hold
73
– – ﹤0.01% 2411
2024
Q4 		$12.1K Buy
+73
New +$11.5K ﹤0.01% 2436

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

MAI Capital Management's MASI Position: Q1 2026 in Review

MAI Capital Management increased its Masimo (MASI) stake by 557% in Q1 2026, buying an estimated $121K and bringing the position to 913 shares worth $162K. The position accounts for ﹤0.01% of the portfolio, ranked #1572.

MAI Capital Management first reported a position in MASI in Q4 2024 and has held it in 6 quarters since. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • MAI Capital Management held 913 shares of Masimo worth $162K as of Q1 2026.
  • MAI Capital Management bought 774 Masimo shares in Q1 2026, an estimated $121K.
  • Masimo made up ﹤0.01% of MAI Capital Management's portfolio in Q1 2026, its #1572 holding.
  • MAI Capital Management first reported a position in Masimo in Q4 2024 and has held it in 6 quarters since.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on MAI Capital Management's 13F filing for Q1 2026, filed 15 May 2026.