Masimo Corporation shares owned by Walleye Trading
Quarter-by-quarter ownership of Masimo Corporation (MASI) shares owned by Walleye Trading
from 13F filings
Historical chart of Walleye Trading investment in Masimo Corporation
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Quarterly reported holdings in Masimo Corporation by Walleye Trading
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2026-03-31 | $70M | 392k | 177.87 |
| 2024-03-31 | $308k | 2.1k | 146.85 |
| 2023-12-31 | $1.7M | 15k | 117.21 |
| 2023-09-30 | $1.0M | 12k | 87.68 |
| 2022-12-31 | $549k | 3.7k | 147.95 |
| 2022-09-30 | $450k | 3.2k | 141.15 |
| 2021-12-31 | $393k | 1.3k | 292.41 |
| 2021-09-30 | $434k | 1.6k | 270.59 |
| 2021-06-30 | $372k | 1.5k | 242.52 |
| 2021-03-31 | $207k | 900 | 230.00 |
| 2020-12-31 | $378k | 1.4k | 270.00 |
| 2020-09-30 | $1.1M | 4.8k | 236.00 |
| 2020-06-30 | $713k | 3.1k | 230.00 |
| 2019-12-31 | $219k | 1.4k | 157.89 |
| 2019-06-30 | $752k | 5.0k | 151.52 |
| 2019-03-31 | $2.2M | 16k | 138.44 |
| 2018-12-31 | $1.5M | 14k | 107.31 |
| 2016-06-30 | $366k | 7.0k | 52.47 |
| 2016-03-31 | $8.0k | 200 | 40.00 |
| 2015-09-30 | $141k | 3.6k | 38.65 |
| 2015-06-30 | $23k | 600 | 38.33 |