NIM
MASI

NEOS Investment Management’s Masimo MASI Stock Holding History

NEOS Investment 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 		– Sell
-4,342
Closed -$565K – 621
2025
Q4 		$565K Sell
4,342
-140
-3% -$20K ﹤0.01% 600
2025
Q3 		$661K Buy
4,482
+533
+13% +$80.7K 0.01% 557
2025
Q2 		$664K Sell
3,949
-594
-13% -$94.9K 0.01% 508
2025
Q1 		$757K Sell
4,543
-5,037
-53% -$874K 0.01% 472
2024
Q4 		$1.58M Sell
9,580
-5,030
-34% -$794K 0.04% 335
2024
Q3 		$1.95M Buy
14,610
+1,121
+8% +$130K 0.06% 268
2024
Q2 		$1.7M Buy
13,489
+4,669
+53% +$615K 0.07% 242
2024
Q1 		$1.3M Buy
8,820
+5,831
+195% +$753K 0.08% 220
2023
Q4 		$350K Buy
+2,989
New +$279K 0.03% 349

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
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
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

NEOS Investment Management's MASI Position: Q1 2026 in Review

NEOS Investment Management sold out of Masimo (MASI) in Q1 2026, closing a stake of 4,342 shares — an estimated $565K sold.

NEOS Investment Management first reported a position in MASI in Q4 2023 and held it in 9 quarters. The position peaked at $1.95M in Q3 2024. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • NEOS Investment Management reported no remaining Masimo position as of Q1 2026 after selling out during the quarter.
  • NEOS Investment Management sold 4,342 Masimo shares in Q1 2026, an estimated $565K.
  • NEOS Investment Management first reported a position in Masimo in Q4 2023 and held it in 9 quarters.
  • NEOS Investment Management's Masimo position peaked at $1.95M in Q3 2024.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on NEOS Investment Management's 13F filing for Q1 2026, filed 15 May 2026.