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RTW INVESTMENTS, LP
> MASI
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | MASIMO CORP | MASI | 1,501,493 | 0 | 247,070,673,000 | -30,014,845,000 | $164,550.00 |
| 03/31/2023 | MASIMO CORP | MASI | 1,501,493 | 61,500 | 277,085,518,000 | 276,882,249,000 | $184,540.00 |
| 09/30/2022 | MASIMO CORP | MASI | 1,439,993 | 89,000 | 203,269,000 | 26,735,000 | $141.16 |
| 06/30/2022 | MASIMO CORP | MASI | 1,350,993 | 223,400 | 176,534,000 | 12,424,000 | $130.67 |
| 03/31/2022 | MASIMO CORP | MASI | 1,127,593 | 277,622 | 164,110,000 | -84,745,000 | $145.54 |
| 12/31/2021 | MASIMO CORP | MASI | 849,971 | 17,431 | 248,855,000 | 23,478,000 | $292.78 |
| 09/30/2021 | MASIMO CORP | MASI | 832,540 | 6,330 | 225,377,000 | 25,062,000 | $270.71 |
| 06/30/2021 | MASIMO CORP | MASI | 826,210 | 356,794 | 200,315,000 | 74,333,000 | $242.45 |
| 12/31/2020 | MASIMO CORP | MASI | 469,416 | 19,026 | 125,982,000 | 19,663,000 | $268.38 |
| 09/30/2020 | MASIMO CORP | MASI | 450,390 | 61,614 | 106,319,000 | 17,682,000 | $236.06 |
| 06/30/2020 | MASIMO CORP | MASI | 388,776 | 5,861 | 88,637,000 | 20,815,000 | $227.99 |
| 03/31/2020 | MASIMO CORP | MASI | 382,915 | 728 | 67,822,000 | 7,414,000 | $177.12 |
| 12/31/2019 | MASIMO CORP | MASI | 382,187 | 11,032 | 60,408,000 | 5,184,000 | $158.06 |
| 09/30/2019 | MASIMO CORP | MASI | 371,155 | -1,103 | 55,224,000 | -175,000 | $148.79 |
| 06/30/2019 | MASIMO CORP | MASI | 372,258 | 8,689 | 55,399,000 | 5,125,000 | $148.82 |
| 03/31/2019 | MASIMO CORP | MASI | 363,569 | 21,348 | 50,274,000 | 13,530,000 | $138.28 |
| 12/31/2018 | MASIMO CORP | MASI | 342,221 | 31,760 | 36,744,000 | -1,921,000 | $107.37 |
| 09/30/2018 | MASIMO CORP | MASI | 310,461 | 60,918 | 38,665,000 | 14,297,000 | $124.54 |
| 06/30/2018 | MASIMO CORP | MASI | 249,543 | 17,543 | 24,368,000 | 3,964,000 | $97.65 |
| 03/31/2018 | MASIMO CORP | MASI | 232,000 | 111,100 | 20,404,000 | 10,152,000 | $87.95 |
| 12/31/2017 | MASIMO CORP | MASI | 120,900 | 0 | 10,252,000 | -213,000 | $84.80 |
| 09/30/2017 | MASIMO CORP | MASI | 120,900 | 20,000 | 10,465,000 | 1,265,000 | $86.56 |
| 06/30/2017 | MASIMO CORP | MASI | 100,900 | 20,000 | 9,200,000 | 1,655,000 | $91.18 |
| 03/31/2017 | MASIMO CORP | MASI | 80,900 | 0 | 7,545,000 | 2,092,000 | $93.26 |
| 12/31/2016 | MASIMO CORP | MASI | 80,900 | 55,000 | 5,453,000 | 3,912,000 | $67.40 |
| 09/30/2016 | MASIMO CORP | MASI | 25,900 | 25,900 | 1,541,000 | 1,541,000 | $59.50 |
| 06/30/2016 | MASIMO CORP | MASI | 25,900 | 0 | 1,360,000 | 276,000 | $52.51 |
| 03/31/2016 | MASIMO CORP | MASI | 25,900 | 0 | 1,084,000 | 9,000 | $41.85 |
| 12/31/2015 | MASIMO CORP | MASI | 25,900 | 0 | 1,075,000 | 76,000 | $41.51 |
| 09/30/2015 | MASIMO CORP | MASI | 25,900 | 25,900 | 999,000 | 999,000 | $38.57 |
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