Masimo Corporation
MX ˙ BMV ˙ US5747951003
SecurityMX:MASI / Masimo Corporation
InstitutionPrivate Advisor Group, LLC
Latest Disclosed Ownership4,211 shares
Latest Disclosed Value $ 749,011
Private Advisor Group, LLC reports 0.33% decrease in ownership of MASI / Masimo Corporation

On April 24, 2026 - Private Advisor Group, LLC filed a 13F-HR form disclosing ownership of 4,211 shares of Masimo Corporation (MX:MASI) valued at $749,011 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 4,225 shares of Masimo Corporation. This represents a change in shares of -0.33% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-24 2026-03-31 13F MASIMO COM 574795100 4,211 -14 -0.33 749 36.43 0.0033
2026-02-17 2025-12-31 13F MASIMO COM 574795100 4,225 -21 -0.49 550 -12.30 0.0025
2025-11-13 2025-09-30 13F MASIMO COM 574795100 4,246 2 0.05 626 -12.20 0.0031
2025-08-11 2025-06-30 13F MASIMO COM 574795100 4,244 -11 -0.26 714 0.71 0.0038
2025-05-05 2025-03-31 13F MASIMO COM 574795100 4,255 -5 -0.12 709 0.57 0.0043
2025-02-03 2024-12-31 13F MASIMO COM 574795100 4,260 105 2.53 704 27.31 0.0040
2024-10-22 2024-09-30 13F MASIMO COM 574795100 4,155 -185 -4.26 554 1.28 0.0034
2024-08-05 2024-06-30 13F MASIMO COM 574795100 4,340 -369 -7.84 547 -20.98 0.0037
2024-04-30 2024-03-31 13F MASIMO COM 574795100 4,709 0 0.00 692 25.41 0.0050
2024-02-06 2023-12-31 13F MASIMO COM 574795100 4,709 196 4.34 552 39.49 0.0043
2023-11-03 2023-09-30 13F MASIMO COM 574795100 4,513 -332 -6.85 396 -50.44 0.0035
2023-08-10 2023-06-30 13F MASIMO COM 574795100 4,845 243 5.28 797 -6.12 0.0069
2023-05-10 2023-03-31 13F MASIMO COM 574795100 4,602 4,602 849 0.0081
2023-01-18 2022-12-31 13F MASIMO COM 574795100 0 -6,622 -100.00 0 -100.00
2022-10-14 2022-09-30 13F MASIMO COM 574795100 6,622 -24 -0.36 935 7.72 0.0107
2022-07-13 2022-06-30 13F MASIMO COM 574795100 6,646 529 8.65 868 -2.47 0.0077
2022-05-12 2022-03-31 13F/A-1 MASIMO COM 574795100 6,117 1,379 29.11 890 -35.83 0.0068
2022-05-10 2022-03-31 13F MASIMO COM 574795100 4,738 0 1,387 0.0104
2022-02-10 2021-12-31 13F MASIMO COM 574795100 4,738 -246 -4.94 1,387 2.82 0.0104
2021-10-14 2021-09-30 13F MASIMO COM 574795100 4,984 -950 -16.01 1,349 -6.25 0.0086
2021-08-12 2021-06-30 13F MASIMO COM 574795100 5,934 -238 -3.86 1,439 1.55 0.0126
2021-04-22 2021-03-31 13F MASIMO COM 574795100 6,172 -31 -0.50 1,417 -14.89 0.0135
2021-04-01 2020-12-31 13F MASIMO COM 574795100 6,203 31 0.50 1,665 14.28 0.0174
2020-11-02 2020-09-30 13F MASIMO COM 574795100 6,172 -50 -0.80 1,457 2.68 0.0189
2020-08-17 2020-06-30 13F MASIMO COM 574795100 6,222 203 3.37 1,419 33.11 0.0197
2020-05-12 2020-03-31 13F MASIMO COM 574795100 6,019 0 0.00 1,066 12.09 0.0196
2020-02-10 2019-12-31 13F MASIMO COM 574795100 6,019 0 0.00 951 6.14 0.0148
2019-11-13 2019-09-30 13F MASIMO COM 574795100 6,019 -286 -4.54 896 -3.14 0.0139
2019-08-14 2019-06-30 13F MASIMO COM 574795100 6,305 -301 -4.56 925 2.66 0.0167
2019-05-13 2019-03-31 13F MASIMO COM 574795100 6,606 549 9.06 901 38.62 0.0178
2019-02-08 2018-12-31 13F MASIMO COM 574795100 6,057 55 0.92 650 -12.99 0.0157
2018-11-01 2018-09-30 13F MASIMO COM 574795100 6,002 -98 -1.61 747 25.13 0.0153
2018-08-09 2018-06-30 13F MASIMO COM 574795100 6,100 2,493 69.12 597 88.33 0.0098
2018-05-09 2018-03-31 13F MASIMO COM 574795100 3,607 -6,551 -64.49 317 -64.42 0.0124
2018-02-07 2017-12-31 13F MASIMO COM 574795100 10,158 -1,002 -8.98 891 -7.09 0.0376
2017-11-13 2017-09-30 13F MASIMO COM 574795100 11,160 329 3.04 959 -3.03 0.0237
2017-08-10 2017-06-30 13F MASIMO COM 574795100 10,831 -1,092 -9.16 989 -10.74 0.0268
2017-05-10 2017-03-31 13F MASIMO COM 574795100 11,923 1,160 10.78 1,108 46.17 0.0310
2017-02-09 2016-12-31 13F MASIMO COM 574795100 10,763 711 7.07 758 27.39 0.0248
2016-11-10 2016-09-30 13F MASIMO COM 574795100 10,052 -6 -0.06 595 13.98 0.0243
2016-08-09 2016-06-30 13F MASIMO COM 574795100 10,058 10,058 522 0.0211
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.