PCM
MASI

Prelude Capital Management’s Masimo MASI Stock Holding History

Prelude Capital 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 		$842K Buy
+4,732
New +$743K 0.06% 345
2025
Q3 		– Sell
-1,720
Closed -$289K – 1289
2025
Q2 		$289K Sell
1,720
-3,939
-70% -$629K 0.03% 627
2025
Q1 		$943K Buy
+5,659
New +$982K 0.07% 321
2024
Q3 		– Sell
-4,600
Closed -$579K – 1443
2024
Q2 		$579K Buy
+4,600
New +$606K 0.04% 478
2022
Q2 		– Sell
-1,701
Closed -$248K – 1953
2022
Q1 		$248K Buy
1,701
+845
+99% +$162K 0.01% 1161
2021
Q4 		$251K Buy
+856
New +$244K 0.01% 1427
2019
Q4 		– Sell
-1,067
Closed -$159K – 2114
2019
Q3 		$159K Buy
1,067
+220
+26% +$33.4K 0.01% 815
2019
Q2 		$126K Sell
847
-172
-17% -$23.6K 0.01% 874
2019
Q1 		$141K Buy
+1,019
New +$128K 0.01% 825
2017
Q4 		– Sell
-3,100
Closed -$268K – 1573
2017
Q3 		$268K Buy
+3,100
New +$274K 0.02% 553
2016
Q1 		– Sell
-4,800
Closed -$199K – 1410
2015
Q4 		$199K Buy
4,800
+300
+7% +$12.3K 0.03% 573
2015
Q3 		$174K Sell
4,500
-300
-6% -$12.3K 0.03% 655
2015
Q2 		$186K Buy
4,800
+200
+4% +$7.17K 0.03% 636
2015
Q1 		$152K Sell
4,600
-900
-16% -$25.9K 0.02% 791
2014
Q4 		$145K Buy
+5,500
New +$136K 0.02% 848
2014
Q3 		– Sell
-5,600
Closed -$132K – 2012
2014
Q2 		$132K Buy
5,600
+5,100
+1,020% +$126K 0.02% 957
2014
Q1 		$14K Buy
+500
New +$14.3K ﹤0.01% 1737

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

Prelude Capital Management's MASI Position: Q1 2026 in Review

Prelude Capital Management opened a new position in Masimo (MASI) in Q1 2026: 4,732 shares worth $842K. The stake represents 0.06% of the portfolio and ranks #345 among its holdings. This is a return to the name: Prelude Capital Management previously reported a position in MASI as recently as Q2 2025.

Prelude Capital Management first reported a position in MASI in Q1 2014 and has held it in 17 quarters since. The position peaked at $943K in Q1 2025. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • Prelude Capital Management held 4,732 shares of Masimo worth $842K as of Q1 2026.
  • Masimo was a new Prelude Capital Management position in Q1 2026.
  • Masimo made up 0.06% of Prelude Capital Management's portfolio in Q1 2026, its #345 holding.
  • Prelude Capital Management first reported a position in Masimo in Q1 2014 and has held it in 17 quarters since.
  • Prelude Capital Management's Masimo position peaked at $943K in Q1 2025.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

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