Masimo Corporation shares owned by Brian McDonald
Quarter-by-quarter ownership of Masimo Corporation (MASI) shares owned by Brian McDonald
from 13F filings
Historical chart of Brian McDonald investment in Masimo Corporation
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Quarterly reported holdings in Masimo Corporation by Brian McDonald
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $34M | 233k | 147.55 |
| 2025-06-30 | $32M | 190k | 168.22 |
| 2025-03-31 | $23M | 138k | 166.60 |
| 2024-12-31 | $23M | 141k | 165.30 |
| 2024-09-30 | $33M | 245k | 133.33 |
| 2024-06-30 | $24M | 191k | 125.94 |
| 2024-03-31 | $15M | 103k | 146.85 |
| 2023-09-30 | $8.5M | 96k | 87.68 |
| 2022-12-31 | $3.5M | 21k | 162.00 |
| 2022-09-30 | $3.0M | 22k | 136.00 |
| 2022-06-30 | $3.1M | 23k | 133.56 |
| 2022-03-31 | $3.2M | 24k | 136.20 |
| 2021-12-31 | $4.9M | 23k | 212.98 |
| 2021-09-30 | $6.6M | 23k | 283.34 |
| 2021-06-30 | $7.8M | 28k | 278.05 |
| 2021-03-31 | $7.7M | 31k | 246.27 |
| 2020-12-31 | $8.6M | 33k | 263.69 |
| 2020-09-30 | $8.1M | 33k | 244.77 |
| 2020-06-30 | $8.0M | 33k | 240.33 |
| 2020-03-31 | $6.4M | 31k | 208.06 |
| 2019-12-31 | $4.9M | 29k | 172.24 |
| 2019-09-30 | $4.0M | 28k | 142.53 |
| 2019-06-30 | $4.3M | 28k | 152.79 |
| 2019-03-31 | $4.3M | 32k | 135.15 |
| 2018-12-31 | $3.8M | 32k | 121.94 |
| 2018-09-30 | $3.5M | 31k | 115.77 |
| 2018-06-30 | $3.7M | 36k | 101.04 |
| 2018-03-31 | $3.3M | 37k | 89.22 |
| 2017-12-31 | $3.3M | 37k | 89.55 |
| 2017-09-30 | $3.2M | 37k | 86.85 |
| 2017-06-30 | $3.5M | 35k | 98.37 |
| 2017-03-31 | $3.6M | 35k | 101.86 |
| 2016-12-31 | $3.4M | 47k | 71.52 |
| 2016-09-30 | $2.6M | 44k | 59.86 |
| 2016-06-30 | $2.5M | 44k | 57.32 |
| 2016-03-31 | $1.9M | 45k | 42.92 |
| 2015-12-31 | $1.7M | 46k | 36.15 |
| 2015-09-30 | $1.8M | 46k | 38.56 |
| 2015-06-30 | $3.7M | 96k | 38.74 |
| 2015-03-31 | $1.6M | 48k | 32.98 |
| 2014-12-31 | $2.4M | 93k | 26.33 |
| 2014-09-30 | $1.0M | 49k | 21.27 |
| 2014-06-30 | $1.2M | 51k | 23.60 |
| 2014-03-31 | $1.1M | 40k | 27.30 |
| 2013-12-31 | $1.2M | 40k | 29.24 |
| 2013-09-30 | $1.1M | 40k | 26.64 |
| 2013-06-30 | $829k | 39k | 21.21 |
| 2012-12-31 | $779k | 37k | 21.01 |
| 2012-09-30 | $906k | 38k | 24.18 |
| 2012-06-30 | $919k | 41k | 22.38 |
| 2012-03-31 | $1.0M | 43k | 23.38 |
| 2011-12-31 | $803k | 43k | 18.68 |
| 2011-09-30 | $939k | 43k | 21.63 |
| 2011-06-30 | $1.3M | 43k | 29.68 |
| 2011-03-31 | $5.0k | 141 | 35.46 |