Masimo Corporation shares owned by Sei Investments
Quarter-by-quarter ownership of Masimo Corporation (MASI) shares owned by Sei Investments
from 13F filings
Historical chart of Sei Investments investment in Masimo Corporation
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Quarterly reported holdings in Masimo Corporation by Sei Investments
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $3.2M | 22k | 147.58 |
| 2025-06-30 | $5.1M | 31k | 168.23 |
| 2025-03-31 | $8.2M | 49k | 166.60 |
| 2024-12-31 | $4.4M | 27k | 165.29 |
| 2024-09-30 | $3.7M | 28k | 133.35 |
| 2024-03-31 | $14M | 96k | 146.75 |
| 2023-09-30 | $16M | 184k | 87.71 |
| 2023-06-30 | $9.3M | 57k | 164.55 |
| 2023-03-31 | $7.8M | 42k | 184.54 |
| 2022-12-31 | $3.6M | 25k | 147.90 |
| 2022-09-30 | $7.3M | 52k | 141.00 |
| 2022-06-30 | $6.2M | 47k | 134.46 |
| 2022-03-31 | $5.5M | 39k | 141.56 |
| 2021-12-31 | $12M | 43k | 282.63 |
| 2021-09-30 | $11M | 39k | 268.55 |
| 2021-06-30 | $9.9M | 42k | 237.76 |
| 2021-03-31 | $13M | 45k | 288.86 |
| 2020-12-31 | $12M | 40k | 288.86 |
| 2020-09-30 | $10M | 44k | 233.34 |
| 2020-06-30 | $9.2M | 40k | 230.38 |
| 2020-03-31 | $5.1M | 29k | 177.10 |
| 2019-12-31 | $5.6M | 36k | 158.18 |
| 2019-09-30 | $8.1M | 54k | 148.89 |
| 2019-06-30 | $9.7M | 65k | 148.74 |
| 2019-03-31 | $9.3M | 67k | 138.99 |
| 2018-12-31 | $6.5M | 52k | 124.53 |
| 2018-09-30 | $4.0M | 34k | 120.28 |
| 2018-06-30 | $4.6M | 48k | 96.39 |
| 2018-03-31 | $3.8M | 44k | 87.88 |
| 2017-12-31 | $2.4M | 28k | 84.83 |
| 2017-09-30 | $2.6M | 30k | 86.65 |
| 2017-06-30 | $5.1M | 55k | 91.45 |
| 2017-03-31 | $5.6M | 61k | 92.77 |
| 2016-12-31 | $4.0M | 59k | 68.97 |
| 2016-09-30 | $3.1M | 52k | 59.31 |
| 2016-06-30 | $2.6M | 50k | 52.51 |
| 2016-03-31 | $2.3M | 55k | 41.84 |
| 2015-12-31 | $422k | 11k | 38.46 |
| 2015-09-30 | $543k | 14k | 38.59 |
| 2015-06-30 | $244k | 6.3k | 38.72 |
| 2015-03-31 | $3.3k | 102 | 32.26 |
| 2014-12-31 | $0 | 9 | 0.00 |