JP Morgan Chase
MASI

JP Morgan Chase’s Masimo MASI Stock Holding History

JP Morgan Chase’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
2024
Q4 		– Sell
-277,300
Closed -$37M – 7595
2024
Q3 		$37M Buy
277,300
+275,400
+14,495% +$32M ﹤0.01% 1531
2024
Q2 		$239K Hold
1,900
– – ﹤0.01% 5079
2024
Q1 		$279K Buy
+1,900
New +$245K ﹤0.01% 5151
2023
Q4 		– Sell
-7,200
Closed -$631K – 7724
2023
Q3 		$631K Buy
7,200
+6,800
+1,700% +$791K ﹤0.01% 4348
2023
Q2 		$65.8K Buy
+400
New +$69.6K ﹤0.01% 5639
2018
Q3 		– Sell
-15,100
Closed -$1.48M – 5754
2018
Q2 		$1.48M Buy
+15,100
New +$1.44M ﹤0.01% 3610

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

JP Morgan Chase's MASI Position: Q1 2026 in Review

JP Morgan Chase increased its Masimo (MASI) stake by 386% in Q1 2026, buying an estimated $71.4M and bringing the position to 572,645 shares worth $102M. The position accounts for 0.01% of the portfolio, ranked #975.

JP Morgan Chase first reported a position in MASI in Q2 2013 and has held it in 52 quarters since. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • JP Morgan Chase held 572,645 shares of Masimo worth $102M as of Q1 2026.
  • JP Morgan Chase bought 454,847 Masimo shares in Q1 2026, an estimated $71.4M.
  • Masimo made up 0.01% of JP Morgan Chase's portfolio in Q1 2026, its #975 holding.
  • JP Morgan Chase first reported a position in Masimo in Q2 2013 and has held it in 52 quarters since.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on JP Morgan Chase's 13F filing for Q1 2026, filed 13 May 2026.