Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$196K Buy
+1,100
New +$173K ﹤0.01% 4330
2025
Q4
Sell
-1,000
Closed -$147K 9418
2025
Q3
$147K Buy
1,000
+700
+233% +$106K ﹤0.01% 5300
2025
Q2
$50K Sell
300
-7,300
-96% -$1.17M ﹤0.01% 5918
2025
Q1
$1.27M Sell
7,600
-2,900
-28% -$503K ﹤0.01% 2470
2024
Q4
$1.74M Sell
10,500
-38,400
-79% -$6.06M ﹤0.01% 2325
2024
Q3
$6.52M Buy
48,900
+41,100
+527% +$4.77M ﹤0.01% 1314
2024
Q2
$982K Sell
7,800
-8,500
-52% -$1.12M ﹤0.01% 2933
2024
Q1
$2.39M Sell
16,300
-28,100
-63% -$3.63M ﹤0.01% 2228
2023
Q4
$5.2M Sell
44,400
-12,500
-22% -$1.17M ﹤0.01% 1514
2023
Q3
$4.99M Buy
56,900
+54,100
+1,932% +$6.3M ﹤0.01% 1356
2023
Q2
$460K Buy
2,800
+1,800
+180% +$313K ﹤0.01% 3398
2023
Q1
$184K Buy
1,000
+800
+400% +$135K ﹤0.01% 4428
2022
Q4
$29K Hold
200
﹤0.01% 6509
2022
Q3
$28K Sell
200
-900
-82% -$131K ﹤0.01% 7155
2022
Q2
$143K Buy
1,100
+100
+10% +$13.4K ﹤0.01% 5063
2022
Q1
$145K Buy
+1,000
New +$192K ﹤0.01% 5627
2021
Q4
Sell
-5,900
Closed -$1.47M 11001
2021
Q3
$1.47M Hold
5,900
﹤0.01% 2567
2021
Q2
$1.43M Buy
5,900
+5,898
+294,900% +$1.35M ﹤0.01% 2625
2021
Q1
$45K Sell
2
-181
-99% -$45.5K ﹤0.01% 6740
2020
Q4
$4.91M Buy
183
+165
+917% +$41.1K 0.01% 1001
2020
Q3
$424K Sell
18
-54
-75% -$12.1K ﹤0.01% 3201
2020
Q2
$1.64M Buy
72
+28
+64% +$6.14K ﹤0.01% 1676
2020
Q1
$779K Sell
44
-28
-39% -$4.8K ﹤0.01% 2123
2019
Q4
$1.14M Buy
72
+47
+188% +$7.07K ﹤0.01% 1978
2019
Q3
$371K Sell
25
-166
-87% -$25.2K ﹤0.01% 2931
2019
Q2
$2.84M Sell
191
-290
-60% -$39.8K 0.01% 1038
2019
Q1
$6.65M Buy
481
+479
+23,950% +$60.1K 0.02% 542
2018
Q4
$21K Sell
2
-4
-67% -$446 ﹤0.01% 5282
2018
Q3
$74K Sell
6
-18
-75% -$2K ﹤0.01% 4743
2018
Q2
$234K Sell
24
-3
-11% -$285 ﹤0.01% 3289
2018
Q1
$2K Buy
+27
New +$2.35K ﹤0.01% 5300
2017
Q4
Sell
-23
Closed -$1K 6371
2017
Q3
$1K Sell
23
-114
-83% -$10.1K ﹤0.01% 5483
2017
Q2
$126K Buy
137
+106
+342% +$9.73K 0.01% 1567
2017
Q1
$3K Buy
+31
New +$2.55K ﹤0.01% 5022
2016
Q4
Sell
-31
Closed -$2K 6239
2016
Q3
$2K Buy
31
+29
+1,450% +$1.64K ﹤0.01% 4973
2016
Q2
$1K Buy
+2
New +$94 ﹤0.01% 5337
2015
Q1
Sell
-10
Closed -$1K 5310
2014
Q4
$1K Buy
+10
New +$247 ﹤0.01% 4175

Other funds holding MASI

Simplex Trading's MASI Position: Q3 2025 in Review

Simplex Trading sold out of Masimo (MASI) in Q3 2025, closing a stake of 98 shares — an estimated $14.8K sold.

Simplex Trading first reported a position in MASI in Q3 2015 and held it in 28 quarters. The position peaked at $4.44M in Q3 2023. 358 funds tracked by Wall St. Rank hold MASI as of Q3 2025.

  • Simplex Trading reported no remaining Masimo position as of Q3 2025 after selling out during the quarter.
  • Simplex Trading sold 98 Masimo shares in Q3 2025, an estimated $14.8K.
  • Simplex Trading first reported a position in Masimo in Q3 2015 and held it in 28 quarters.
  • Simplex Trading's Masimo position peaked at $4.44M in Q3 2023.
  • 358 funds tracked by Wall St. Rank held Masimo as of Q3 2025.

Based on Simplex Trading's 13F filing for Q3 2025, filed 12 Nov 2025.