PS
MASI

Principal Securities’s Masimo MASI Stock Holding History

Principal Securities’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
-7
Closed -$1.03K – 2635
2025
Q3 		$1.03K Buy
7
+3
+75% +$454 ﹤0.01% 3399
2025
Q2 		$673 Sell
4
-54
-93% -$8.63K ﹤0.01% 3430
2025
Q1 		$9.59K Hold
58
– – ﹤0.01% 2542
2024
Q4 		$9.59K Hold
58
– – ﹤0.01% 2537
2024
Q3 		$7.73K Buy
58
+18
+45% +$2.09K ﹤0.01% 2540
2024
Q2 		$5.04K Buy
40
+5
+14% +$658 ﹤0.01% 2640
2024
Q1 		$5.14K Buy
+35
New +$4.52K ﹤0.01% 2600

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

Principal Securities's MASI Position: Q4 2025 in Review

Principal Securities sold out of Masimo (MASI) in Q4 2025, closing a stake of 7 shares — an estimated $1.03K sold.

Principal Securities first reported a position in MASI in Q1 2024 and held it in 7 quarters. The position peaked at $9.59K in Q1 2025. 390 funds tracked by Wall St. Rank hold MASI as of Q4 2025.

  • Principal Securities reported no remaining Masimo position as of Q4 2025 after selling out during the quarter.
  • Principal Securities sold 7 Masimo shares in Q4 2025, an estimated $1.03K.
  • Principal Securities first reported a position in Masimo in Q1 2024 and held it in 7 quarters.
  • Principal Securities's Masimo position peaked at $9.59K in Q1 2025.
  • 390 funds tracked by Wall St. Rank held Masimo as of Q4 2025.

Based on Principal Securities's 13F filing for Q4 2025, filed 12 Feb 2026.