VCM
MASI

Vanguard Capital Management’s Masimo MASI Stock Holding History

Vanguard 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 		$365M Buy
+2,050,045
New +$322M 0.01% 770

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
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
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

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

Vanguard Capital Management opened a new position in Masimo (MASI) in Q1 2026: 2,050,045 shares worth $365M. The stake represents 0.01% of the portfolio and ranks #770 among its holdings.

445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • Vanguard Capital Management held 2,050,045 shares of Masimo worth $365M as of Q1 2026.
  • Masimo was a new Vanguard Capital Management position in Q1 2026.
  • Masimo made up 0.01% of Vanguard Capital Management's portfolio in Q1 2026, its #770 holding.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on Vanguard Capital Management's 13F filing for Q1 2026, filed 8 May 2026.