MASI Stock Ownership Activity

MASIMO CORP 13F holders

2 value investing gurus have made changes to the MASIMO CORP (MASI) position according to the gurus' latest SEC quarterly report(s). MASI has been bought (as a new position) by 1 guru(s), the number of MASI shares has been increased by 1 super investor(s).

Which gurus or hedge funds are buying MASI now?

According to the latest SEC filing(s) MASIMO CORP (MASI) has been bought by 2 gurus: Ole Andreas Halvorsen - Viking Global Investors (new buy) and Henry Ellenbogen - Durable Capital Partners (added shares +3.4%).

To see more about who is investing in MASIMO CORP (MASI), please go to the MASI ownership page.

2025 Q2 (2 results)
Ole Andreas Halvorsen
buy
+767,426
+0.37%
0.37%
Henry Ellenbogen
+3.40%
+38,279
+0.05%
1.48%
Current price: $148.63 11.65% AVG reported price*: $168.22
2025 Q1 (1 result)
Henry Ellenbogen
buy
+1,125,619
+1.68%
1.68%
Current price: $148.63 10.79% Reported price*: $166.60
2023 Q3 (1 result)
Terry Smith
-100.00%
-730,377
-0.55%
0.00%
Current price: $148.63 9.67% Reported price*: $164.55
2023 Q2 (1 result)
Terry Smith
-4.44%
-33,942
-0.02%
0.00%
Current price: $148.63 9.67% Reported price*: $164.55
2022 Q4 (1 result)
Terry Smith
-0.11%
-842
-0.00%
0.52%
Current price: $148.63 0.46% Reported price*: $147.95
2022 Q3 (1 result)
Terry Smith
+1.17%
+8,848
+0.01%
0.51%
Current price: $148.63 5.29% Reported price*: $141.16
2022 Q2 (1 result)
Terry Smith
-0.63%
-4,783
-0.00%
0.44%
Current price: $148.63 13.75% Reported price*: $130.67
2022 Q1 (1 result)
Terry Smith
+74.59%
+325,159
+0.16%
0.38%
Current price: $148.63 2.12% Reported price*: $145.54
2021 Q4 (1 result)
Terry Smith
+0.21%
+927
+0.00%
0.31%
Current price: $148.63 49.24% Reported price*: $292.78
2021 Q3 (1 result)
Terry Smith
+0.36%
+1,572
+0.00%
0.33%
Current price: $148.63 45.10% Reported price*: $270.71
2021 Q2 (1 result)
Terry Smith
+0.55%
+2,375
+0.00%
0.29%
Current price: $148.63 38.70% Reported price*: $242.45
2021 Q1 (1 result)
Terry Smith
+0.42%
+1,809
+0.00%
0.31%
Current price: $148.63 35.28% Reported price*: $229.66
2020 Q4 (2 results)
Terry Smith
+0.08%
+357
+0.00%
0.38%
David M. Polen
-100.00%
-18,414
-0.01%
0.00%
Current price: $148.63 44.62% AVG reported price*: $268.38
2020 Q3 (1 result)
David M. Polen
+17.36%
+2,724
+0.00%
0.00%
Current price: $148.63 37.04% Reported price*: $236.07
2020 Q2 (2 results)
David M. Polen
+48.95%
+5,156
+0.00%
0.01%
Terry Smith
-9.87%
-46,956
-0.05%
0.43%
Current price: $148.63 34.81% AVG reported price*: $227.98
2020 Q1 (2 results)
David M. Polen
+37.83%
+2,891
+0.00%
0.01%
Terry Smith
-17.24%
-99,110
-0.10%
0.47%
Current price: $148.63 16.09% AVG reported price*: $177.13
2019 Q4 (1 result)
David M. Polen
+15.66%
+1,035
+0.00%
0.00%
Current price: $148.63 5.96% Reported price*: $158.05
2019 Q3 (1 result)
David M. Polen
+1.57%
+102
+0.00%
0.00%
Current price: $148.63 0.09% Reported price*: $148.76
2019 Q2 (2 results)
Terry Smith
+17.18%
+84,300
+0.07%
0.45%
David M. Polen
+7.11%
+432
+0.00%
0.00%
Current price: $148.63 0.12% AVG reported price*: $148.80
2019 Q1 (2 results)
David M. Polen
+6.13%
+351
+0.00%
0.00%
Terry Smith
+2.36%
+11,291
+0.01%
0.39%
Current price: $148.63 7.48% AVG reported price*: $138.29
2018 Q4 (2 results)
Terry Smith
buy
+479,372
+0.33%
0.33%
David M. Polen
+47.73%
+1,849
+0.00%
0.00%
Current price: $148.63 38.48% AVG reported price*: $107.33
2018 Q3 (1 result)
David M. Polen
+9.07%
+322
+0.00%
0.00%
Current price: $148.63 19.46% Reported price*: $124.42
2018 Q2 (1 result)
David M. Polen
+12.12%
+384
+0.00%
0.00%
Current price: $148.63 52.14% Reported price*: $97.69
2018 Q1 (1 result)
David M. Polen
buy
+3,168
+0.00%
0.00%
Current price: $148.63 68.77% Reported price*: $88.07
2016 Q2 (1 result)
Eric H. Schoenstein
-100.00%
-10,260
-0.01%
0.00%
Current price: $148.63 255.46% Reported price*: $41.81
2016 Q1 (1 result)
Eric H. Schoenstein
buy
+10,260
+0.01%
0.00%
Current price: $148.63 255.46% Reported price*: $41.81
2014 Q1 (1 result)
Brian Bares
-100.00%
-2,153,144
-5.05%
0.00%
Current price: $148.63 408.49% Reported price*: $29.23
2013 Q4 (1 result)
Brian Bares
-9.93%
-237,262
-0.61%
0.00%
Current price: $148.63 408.49% Reported price*: $29.23
2013 Q3 (1 result)
Brian Bares
-21.30%
-647,065
-1.65%
6.09%
Current price: $148.63 457.96% Reported price*: $26.64
2013 Q2 (1 result)
Brian Bares
buy
+3,037,471
+6.48%
6.48%
Current price: $148.63 601.09% Reported price*: $21.20
37 of 37

Shares, change to shares, sold shares - split-adjusted.

Reported price - this doesn't represent the actual buy or sell price.
It is the split-adjusted price of the security as of the last day of the reported period.

Value or Price - If the security is completely sold out, we show the reported value (or price) prior to the actual period.