VAS
MASI

Vestmark Advisory Solutions’s Masimo MASI Stock Holding History

Vestmark Advisory Solutions’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
-3,209
Closed -$473K – 1270
2025
Q3 		$473K Sell
3,209
-1,041
-24% -$158K 0.01% 710
2025
Q2 		$715K Buy
4,250
+976
+30% +$156K 0.01% 559
2025
Q1 		$545K Buy
3,274
+189
+6% +$32.8K 0.01% 500
2024
Q4 		$510K Buy
3,085
+1,043
+51% +$165K 0.02% 409
2024
Q3 		$272K Buy
+2,042
New +$237K 0.01% 472

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

Vestmark Advisory Solutions's MASI Position: Q4 2025 in Review

Vestmark Advisory Solutions sold out of Masimo (MASI) in Q4 2025, closing a stake of 3,209 shares — an estimated $473K sold.

Vestmark Advisory Solutions first reported a position in MASI in Q3 2024 and held it in 5 quarters. The position peaked at $715K in Q2 2025. 390 funds tracked by Wall St. Rank hold MASI as of Q4 2025.

  • Vestmark Advisory Solutions reported no remaining Masimo position as of Q4 2025 after selling out during the quarter.
  • Vestmark Advisory Solutions sold 3,209 Masimo shares in Q4 2025, an estimated $473K.
  • Vestmark Advisory Solutions first reported a position in Masimo in Q3 2024 and held it in 5 quarters.
  • Vestmark Advisory Solutions's Masimo position peaked at $715K in Q2 2025.
  • 390 funds tracked by Wall St. Rank held Masimo as of Q4 2025.

Based on Vestmark Advisory Solutions's 13F filing for Q4 2025, filed 6 Feb 2026.