FFO
MASI

Fortitude Family Office’s Masimo MASI Stock Holding History

Fortitude Family Office’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
2025
Q3 		– Sell
-11
Closed -$1.85K – 2076
2025
Q2 		$1.85K Buy
+11
New +$1.76K ﹤0.01% 1238

Other funds holding MASI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
PCM
Politan Capital Management New York $985M AUM 3.12% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return
Alyeska Investment Group
Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return

Fortitude Family Office's MASI Position: Q3 2025 in Review

Fortitude Family Office sold out of Masimo (MASI) in Q3 2025, closing a stake of 11 shares — an estimated $1.85K sold.

Fortitude Family Office first reported a position in MASI in Q2 2025 and held it in 1 quarter. The position peaked at $1.85K in Q2 2025. 358 funds tracked by Wall St. Rank hold MASI as of Q3 2025.

  • Fortitude Family Office reported no remaining Masimo position as of Q3 2025 after selling out during the quarter.
  • Fortitude Family Office sold 11 Masimo shares in Q3 2025, an estimated $1.85K.
  • Fortitude Family Office first reported a position in Masimo in Q2 2025 and held it in 1 quarter.
  • Fortitude Family Office's Masimo position peaked at $1.85K in Q2 2025.
  • 358 funds tracked by Wall St. Rank held Masimo as of Q3 2025.

Based on Fortitude Family Office's 13F filing for Q3 2025, filed 17 Oct 2025.