Masimo Corporation
MX ˙ BMV ˙ US5747951003
SecurityMX:MASI / Masimo Corporation
InstitutionVictory Capital Management Inc
Latest Disclosed Ownership7,708 shares
Latest Disclosed Value $ 1,371,022
Victory Capital Management Inc reports 21.63% decrease in ownership of MASI / Masimo Corporation

On May 15, 2026 - Victory Capital Management Inc filed a 13F-HR form disclosing ownership of 7,708 shares of Masimo Corporation (MX:MASI) valued at $1,371,022 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 9,836 shares of Masimo Corporation. This represents a change in shares of -21.63% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-15 2026-03-31 13F MASIMO COM 574795100 7,708 -2,128 -21.63 1,371 7.19 0.0007
2026-02-13 2025-12-31 13F MASIMO COM 574795100 9,836 -23,209 -70.23 1,279 -73.76 0.0007
2025-11-12 2025-09-30 13F MASIMO COM 574795100 33,045 3,677 12.52 4,876 -1.32 0.0029
2025-08-13 2025-06-30 13F MASIMO COM 574795100 29,368 3,001 11.38 4,940 12.48 0.0032
2025-05-02 2025-03-31 13F MASIMO COM 574795100 26,367 17,363 192.84 4,393 195.16 0.0045
2025-02-06 2024-12-31 13F MASIMO COM 574795100 9,004 -236 -2.55 1,488 20.88 0.0015
2024-11-05 2024-09-30 13F MASIMO COM 574795100 9,240 -576 -5.87 1,232 -0.40 0.0012
2024-08-05 2024-06-30 13F MASIMO COM 574795100 9,816 -153 -1.53 1,236 -15.52 0.0012
2024-05-03 2024-03-31 13F MASIMO COM 574795100 9,969 -146 -1.44 1,464 23.46 0.0014
2024-02-05 2023-12-31 13F MASIMO COM 574795100 10,115 -2,247 -18.18 1,186 9.42 0.0012
2023-11-06 2023-09-30 13F MASIMO COM 574795100 12,362 -9,394 -43.18 1,084 -69.74 0.0012
2023-07-27 2023-06-30 13F MASIMO COM 574795100 21,756 1,564 7.75 3,580 -3.95 0.0039
2023-05-02 2023-03-31 13F MASIMO COM 574795100 20,192 10,135 100.78 3,726 150.57 0.0042
2023-04-25 2022-12-31 13F/A-3 MASIMO COM 574795100 10,057 -865 -7.92 1,488 -3.57 0.0017
2023-03-10 2022-12-31 13F/A-2 MASIMO COM 574795100 10,057 -865 1,488 0.0010
2023-02-10 2022-12-31 13F/A-1 MASIMO COM 574795100 10,057 -865 1,488 0.0010
2023-02-09 2022-12-31 13F MASIMO COM 574795100 10,160 -762 1,728 0.0012
2022-11-02 2022-09-30 13F MASIMO COM 574795100 10,922 -1,063 -8.87 1,542 -1.53 0.0018
2022-08-01 2022-06-30 13F MASIMO COM 574795100 11,985 317 2.72 1,566 18.82 0.0018
2022-05-04 2022-03-31 13F MASIMO COM 574795100 11,668 -10,687 -47.81 1,318 -79.86 0.0013
2022-02-07 2021-12-31 13F MASIMO COM 574795100 22,355 -219,275 -90.75 6,545 -89.99 0.0060
2021-11-02 2021-09-30 13F MASIMO COM 574795100 241,630 29,603 13.96 65,411 27.24 0.0641
2021-08-03 2021-06-30 13F MASIMO COM 574795100 212,027 -7,389 -3.37 51,406 2.01 0.0494
2021-05-04 2021-03-31 13F MASIMO COM 574795100 219,416 -299,613 -57.73 50,391 -63.82 0.0516
2021-02-01 2020-12-31 13F MASIMO COM 574795100 519,029 -253,152 -32.78 139,297 -23.58 0.1552
2020-11-09 2020-09-30 13F MASIMO COM 574795100 772,181 21,982 2.93 182,281 6.57 0.2340
2020-08-07 2020-06-30 13F MASIMO COM 574795100 750,199 -17,743 -2.31 171,038 25.75 0.2316
2020-05-12 2020-03-31 13F/A-1 MASIMO COM 574795100 767,942 302,578 65.02 136,018 84.92 0.2281
2020-05-04 2020-03-31 13F MASIMO COM 574795100 767,942 302,578 136,018 148,857.8793
2020-02-06 2019-12-31 13F/A-1 MASIMO COM 574795100 465,364 -111,720 -19.36 73,555 -14.34 0.0893
2020-02-04 2019-12-31 13F MASIMO COM 574795100 466,401 -110,683 79,567 95,376.2186
2019-11-12 2019-09-30 13F MASIMO COM 574795100 577,084 -63,281 -9.88 85,865 -9.90 0.1105
2019-08-15 2019-06-30 13F MASIMO COM 574795100 640,365 17,207 2.76 95,299 10.59 0.1922
2019-05-03 2019-03-31 13F MASIMO COM 574795100 623,158 -103,171 -14.20 86,171 10.50 0.1960
2019-05-02 2018-12-31 13F/A-1 MASIMO COM 574795100 726,329 85,255 13.30 77,986 -2.32 0.1958
2019-02-05 2018-12-31 13F MASIMO COM 574795100 726,329 85,255 77,986
2018-11-01 2018-09-30 13F MASIMO COM 574795100 641,074 194,055 43.41 79,838 82.90 0.1647
2018-08-02 2018-06-30 13F MASIMO COM 574795100 447,019 22,860 5.39 43,651 17.01 0.0929
2018-05-04 2018-03-31 13F MASIMO COM 574795100 424,159 13,759 3.35 37,305 7.19 0.0814
2018-02-01 2017-12-31 13F MASIMO COM 574795100 410,400 109,470 36.38 34,802 33.60 0.0732
2017-10-27 2017-09-30 13F MASIMO COM 574795100 300,930 300,930 26,049 0.0585
2017-05-10 2017-03-31 13F MASIMO COM 574795100 0 -1,881 -100.00 0 -100.00
2017-02-09 2016-12-31 13F MASIMO COM 574795100 1,881 -46 -2.39 127 10.43 0.0003
2016-11-02 2016-09-30 13F MASIMO COM 574795100 1,927 -221 -10.29 115 1.77 0.0003
2016-08-09 2016-06-30 13F MASIMO COM 574795100 2,148 934 76.94 113 121.57 0.0005
2016-05-17 2016-03-31 13F/A-2 MASIMO COM 574795100 1,214 -773 -38.90 51 -37.80 0.0002
2016-05-12 2016-03-31 13F/A-1 MASIMO COM 574795100 1,214 0 51 0.0002
2016-05-12 2016-03-31 13F MASIMO COM 574795100 1,214 51
2016-02-10 2015-12-31 13F MASIMO COM 574795100 1,987 -67 -3.26 82 3.80 0.0003
2015-11-06 2015-09-30 13F MASIMO COM 574795100 2,054 -29 -1.39 79 -2.47 0.0003
2015-08-14 2015-06-30 13F/A-01 Masimo COM 574795100 2,083 2,083 81 0.0003
2015-08-07 2015-06-30 13F Masimo COM 574795100 2,083 81
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.