馬西莫公司
MX ˙ BMV ˙ US5747951003
SecurityMX:MASI / Masimo Corporation
InstitutionPrudential Financial Inc
Latest Disclosed Ownership1,955 shares
Latest Disclosed Value $ 347,736
Prudential Financial Inc reports 0.15% decrease in ownership of MASI / Masimo Corporation

On May 13, 2026 - Prudential Financial Inc filed a 13F-HR form disclosing ownership of 1,955 shares of Masimo Corporation (MX:MASI) valued at $347,736 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,958 shares of Masimo Corporation. This represents a change in shares of -0.15% 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)
2026-05-13 2026-03-31 13F MASIMO COM 574795100 1,955 -3 -0.15 348 35.55 0.0002
2026-02-13 2025-12-31 13F MASIMO COM 574795100 1,958 -1,764 -47.39 257 -53.37 0.0003
2025-11-13 2025-09-30 13F MASIMO COM 574795100 3,722 -150 -3.87 549 -15.67 0.0007
2025-08-12 2025-06-30 13F MASIMO COM 574795100 3,872 682 21.38 651 22.60 0.0008
2025-05-13 2025-03-31 13F MASIMO COM 574795100 3,190 739 30.15 531 31.11 0.0008
2025-02-11 2024-12-31 13F MASIMO COM 574795100 2,451 -4,185 -63.07 405 -54.19 0.0006
2024-11-14 2024-09-30 13F MASIMO COM 574795100 6,636 4,415 198.78 885 216.85 0.0012
2024-08-13 2024-06-30 13F MASIMO COM 574795100 2,221 -20 -0.89 280 -15.20 0.0004
2024-05-14 2024-03-31 13F MASIMO COM 574795100 2,241 -390 -14.82 329 6.82 0.0005
2024-02-13 2023-12-31 13F MASIMO COM 574795100 2,631 90 3.54 308 38.74 0.0005
2023-11-13 2023-09-30 13F MASIMO COM 574795100 2,541 -3,505 -57.97 223 -77.67 0.0003
2023-08-11 2023-06-30 13F MASIMO COM 574795100 6,046 1,880 45.13 995 29.43 0.0014
2023-05-12 2023-03-31 13F MASIMO COM 574795100 4,166 1,155 38.36 769 72.58 0.0012
2023-02-14 2022-12-31 13F MASIMO COM 574795100 3,011 -1,170 -27.98 445 -24.58 0.0008
2022-11-04 2022-09-30 13F MASIMO COM 574795100 4,181 -19,272 -82.17 590 -80.75 0.0010
2022-08-15 2022-06-30 13F MASIMO COM 574795100 23,453 -15,095 -39.16 3,065 -45.38 0.0049
2022-05-13 2022-03-31 13F MASIMO COM 574795100 38,548 25,826 203.00 5,611 50.63 0.0075
2022-02-14 2021-12-31 13F MASIMO COM 574795100 12,722 -8,374 -39.69 3,725 -34.79 0.0046
2021-11-15 2021-09-30 13F MASIMO COM 574795100 21,096 -4,547 -17.73 5,712 -8.12 0.0080
2021-08-16 2021-06-30 13F MASIMO COM 574795100 25,643 9,225 56.19 6,217 64.91 0.0086
2021-05-12 2021-03-31 13F MASIMO COM 574795100 16,418 -6,807 -29.31 3,770 -39.51 0.0056
2021-08-16 2020-12-31 13F/A-1 MASIMO COM 0268 574795100 23,225 23,165 38,608.33 6,232 44,414.29 0.0105
2021-02-16 2020-12-31 13F MASIMO COM 574795100 23,225 23,165 6,232 0.0105
2021-08-05 2020-09-30 13F/A-1 MASIMO COM 574795100 60 -10 -14.29 14 -12.50 0.0020
2020-11-16 2020-09-30 13F MASIMO COM 574795100 54,440 54,370 12,851 0.0242
2021-08-05 2020-06-30 13F/A-1 MASIMO COM 0227 574795100 70 14 25.00 16 60.00 0.0030
2020-08-12 2020-06-30 13F MASIMO COM 574795100 132,844 132,788 30,286 0.0583
2021-08-05 2020-03-31 13F/A-1 MASIMO COM 0177 574795100 56 -13 -18.84 10 -9.09 0.0026
2020-05-12 2020-03-31 13F MASIMO COM 574795100 178,939 178,870 31,693 0.0702
2021-08-05 2019-12-31 13F/A-1 MASIMO COM 0158 574795100 69 54 360.00 11 450.00 0.0029
2020-02-11 2019-12-31 13F MASIMO COM 574795100 364,611 364,596 57,631 0.0854
2021-08-05 2019-09-30 13F/A-1 MASIMO COM 0148 574795100 15 1 7.14 2 0.00 0.0007
2019-11-13 2019-09-30 13F MASIMO COM 574795100 514,396 514,382 76,535 0.1214
2021-08-05 2019-06-30 13F/A-1 MASIMO COM 574795100 14 -74 -84.09 2 -83.33 0.0007
2019-08-08 2019-06-30 13F MASIMO COM 574795100 543,060 542,972 80,818 0.1259
2021-08-05 2019-03-31 13F/A-1 MASIMO COM 574795100 88 -8 -8.33 12 20.00 0.0051
2019-05-15 2019-03-31 13F MASIMO COM 574795100 524,168 524,072 72,482 0.1207
2021-08-05 2018-12-31 13F/A-1 MASIMO COM 574795100 96 89 1,271.43 10 900.00 0.0081
2019-02-07 2018-12-31 13F MASIMO COM 574795100 571,664 -80,065 61,380 0.1078
2021-09-01 2018-09-30 13F/A-1 MASIMO COM 0124 574795100 7 -822,723 -100.00 1 -100.00 0.0016
2018-11-07 2018-09-30 13F MASIMO COM 574795100 651,729 -171,001 81,166 0.1196
2018-08-13 2018-06-30 13F MASIMO COM 574795100 822,730 9,794 1.20 80,340 12.37 0.1201
2018-05-04 2018-03-31 13F MASIMO COM 574795100 812,936 53,061 6.98 71,498 10.96 0.1089
2018-02-13 2017-12-31 13F MASIMO COM 574795100 759,875 74,607 10.89 64,438 8.63 0.0878
2017-11-02 2017-09-30 13F MASIMO COM 574795100 685,268 132,053 23.87 59,317 17.59 0.0981
2017-08-07 2017-06-30 13F MASIMO COM 574795100 553,215 69,810 14.44 50,442 11.89 0.0750
2017-05-10 2017-03-31 13F MASIMO COM 574795100 483,405 60,215 14.23 45,083 58.06 0.0703
2017-02-07 2016-12-31 13F MASIMO COM 574795100 423,190 -4,391 -1.03 28,523 12.13 0.0459
2016-11-04 2016-09-30 13F MASIMO COM 574795100 427,581 -27,360 -6.01 25,437 6.47 0.0420
2016-08-09 2016-06-30 13F MASIMO COM 574795100 454,941 -74,360 -14.05 23,891 7.88 0.0402
2016-05-09 2016-03-31 13F MASIMO COM 574795100 529,301 -71,007 -11.83 22,146 -11.13 0.0396
2016-02-12 2015-12-31 13F MASIMO COM 574795100 600,308 260,560 76.69 24,919 90.21 0.0451
2015-11-10 2015-09-30 13F MASIMO COM 574795100 339,748 38,540 12.80 13,101 12.27 0.0258
2015-08-06 2015-06-30 13F MASIMO COM 574795100 301,208 6,300 2.14 11,669 19.98 0.0207
2015-05-01 2015-03-31 13F MASIMO COM 574795100 294,908 -196,250 -39.96 9,726 -24.82 0.0169
2015-02-06 2014-12-31 13F MASIMO COM 574795100 491,158 17,500 3.69 12,937 28.34 0.0235
2014-11-12 2014-09-30 13F MASIMO COM 574795100 473,658 78,417 19.84 10,080 8.06 0.0190
2014-08-13 2014-06-30 13F MASIMO COM 574795100 395,241 283,288 253.04 9,328 205.14 0.0165
2014-05-14 2014-03-31 13F MASIMO COM 574795100 111,953 18,517 19.82 3,057 11.94 0.0057
2014-02-11 2013-12-31 13F MASIMO COM 574795100 93,436 -95,900 -50.65 2,731 -45.86 0.0054
2013-11-07 2013-09-30 13F MASIMO COM 574795100 189,336 -70,903 -27.25 5,044 -8.57 0.0107
2013-08-07 2013-06-30 13F MASIMO COM 574795100 260,239 260,239 5,517 0.0122
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.