JAM
MASI

Jupiter Asset Management’s Masimo MASI Stock Holding History

Jupiter 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
2025
Q4 		– Sell
-84,657
Closed -$12.5M – 455
2025
Q3 		$12.5M Buy
+84,657
New +$12.8M 0.11% 202
2019
Q2 		– Sell
-4,524
Closed -$626K – 222
2019
Q1 		$626K Buy
+4,524
New +$568K 0.02% 210

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
PCM
Politan Capital Management New York $985M AUM 3.12% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 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
NCMU
NAYA Capital Management (UK) London, United Kingdom $1.18B AUM 13.14% 1-Year Est. Return
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Alyeska Investment Group
Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return

Jupiter Asset Management's MASI Position: Q4 2025 in Review

Jupiter Asset Management sold out of Masimo (MASI) in Q4 2025, closing a stake of 84,657 shares — an estimated $12.5M sold.

Jupiter Asset Management first reported a position in MASI in Q1 2019 and held it in 2 quarters. The position peaked at $12.5M in Q3 2025. 390 funds tracked by Wall St. Rank hold MASI as of Q4 2025.

  • Jupiter Asset Management reported no remaining Masimo position as of Q4 2025 after selling out during the quarter.
  • Jupiter Asset Management sold 84,657 Masimo shares in Q4 2025, an estimated $12.5M.
  • Jupiter Asset Management first reported a position in Masimo in Q1 2019 and held it in 2 quarters.
  • Jupiter Asset Management's Masimo position peaked at $12.5M in Q3 2025.
  • 390 funds tracked by Wall St. Rank held Masimo as of Q4 2025.

Based on Jupiter Asset Management's 13F filing for Q4 2025, filed 10 Feb 2026.