Masimo Corporation
MX ˙ BMV ˙ US5747951003
SecurityMX:MASI / Masimo Corporation
InstitutionPnc Financial Services Group, Inc.
Latest Disclosed Ownership5,107 shares
Latest Disclosed Value $ 908,383
Pnc Financial Services Group, Inc. reports 29.92% decrease in ownership of MASI / Masimo Corporation

On May 8, 2026 - Pnc Financial Services Group, Inc. filed a 13F-HR form disclosing ownership of 5,107 shares of Masimo Corporation (MX:MASI) valued at $908,383 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 7,287 shares of Masimo Corporation. This represents a change in shares of -29.92% 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)
2026-05-08 2026-03-31 13F MASIMO COM 574795100 5,107 -2,180 -29.92 908 -4.12 0.0005
2026-02-06 2025-12-31 13F MASIMO COM 574795100 7,287 35 0.48 948 -11.50 0.0005
2025-11-07 2025-09-30 13F MASIMO COM 574795100 7,252 854 13.35 1,070 -0.56 0.0006
2025-08-08 2025-06-30 13F MASIMO COM 574795100 6,398 714 12.56 1,076 13.74 0.0007
2025-05-09 2025-03-31 13F MASIMO COM 574795100 5,684 999 21.32 947 22.22 0.0005
2025-02-07 2024-12-31 13F MASIMO COM 574795100 4,685 840 21.85 774 51.17 0.0005
2024-11-08 2024-09-30 13F MASIMO COM 574795100 3,845 -53 -1.36 513 4.49 0.0003
2024-08-09 2024-06-30 13F MASIMO COM 574795100 3,898 113 2.99 491 -11.71 0.0003
2024-05-10 2024-03-31 13F MASIMO COM 574795100 3,785 -60 -1.56 556 23.33 0.0004
2024-03-22 2023-12-31 13F/A-1 MASIMO COM 574795100 3,845 63 1.67 451 35.95 0.0004
2024-02-09 2023-12-31 13F MASIMO COM 574795100 3,845 63 451 0.0001
2023-11-13 2023-09-30 13F MASIMO COM 574795100 3,782 -2,096 -35.66 332 -65.77 0.0003
2023-08-11 2023-06-30 13F MASIMO COM 574795100 5,878 -50 -0.84 967 -11.53 0.0008
2023-05-15 2023-03-31 13F MASIMO COM 574795100 5,928 -82 -1.36 1,094 22.95 0.0010
2023-02-10 2022-12-31 13F MASIMO COM 574795100 6,010 -870 -12.65 889 -8.54 0.0009
2022-11-10 2022-09-30 13F MASIMO COM 574795100 6,880 497 7.79 972 16.41 0.0010
2022-08-12 2022-06-30 13F MASIMO COM 574795100 6,383 -800 -11.14 835 -20.17 0.0008
2022-05-12 2022-03-31 13F MASIMO COM 574795100 7,183 -2,805 -28.08 1,046 -64.24 0.0009
2022-02-11 2021-12-31 13F MASIMO COR Common Stock 574795100 9,988 798 8.68 2,925 17.56 0.0024
2021-11-05 2021-09-30 13F MASIMO COR Common Stock 574795100 9,190 -68 -0.73 2,488 10.87 0.0023
2021-08-06 2021-06-30 13F MASIMO COM 574795100 9,258 239 2.65 2,244 8.35 0.0020
2021-05-07 2021-03-31 13F MASIMO COM 574795100 9,019 -524 -5.49 2,071 -19.13 0.0020
2021-02-12 2020-12-31 13F MASIMO COM 574795100 9,543 2,443 34.41 2,561 52.90 0.0026
2020-11-06 2020-09-30 13F MASIMO COM 574795100 7,100 -398 -5.31 1,675 -2.05 0.0021
2020-08-28 2020-06-30 13F/A-1 MASIMO COM 574795100 7,498 -1,894 -20.17 1,710 2.83 0.0023
2020-08-07 2020-06-30 13F MASIMO COM 574795100 7,498 -1,894 1,710 355.0617
2020-05-08 2020-03-31 13F MASIMO COM 574795100 9,392 -150 -1.57 1,663 10.35 0.0021
2020-02-07 2019-12-31 13F MASIMO COM 574795100 9,542 -6,443 -40.31 1,507 -36.63 0.0015
2019-11-08 2019-09-30 13F MASIMO COM 574795100 15,985 -6,228 -28.04 2,378 -28.07 0.0024
2019-08-09 2019-06-30 13F MASIMO COM 574795100 22,213 -1,480 -6.25 3,306 0.92 0.0032
2019-05-10 2019-03-31 13F MASIMO COR Common Stock 574795100 23,693 116 0.49 3,276 29.49 0.0033
2019-02-08 2018-12-31 13F MASIMO COR Common Stock 574795100 23,577 -1,189 -4.80 2,530 -17.96 0.0028
2018-11-09 2018-09-30 13F MASIMO COR Common Stock 574795100 24,766 -2,896 -10.47 3,084 14.18 0.0029
2018-08-10 2018-06-30 13F MASIMO COR Common Stock 574795100 27,662 -367 -1.31 2,701 9.57 0.0027
2018-05-11 2018-03-31 13F MASIMO COR Common Stock 574795100 28,029 -1,332 -4.54 2,465 -0.92 0.0024
2018-02-09 2017-12-31 13F MASIMO COR Common Stock 574795100 29,361 2,749 10.33 2,488 7.99 0.0024
2017-11-13 2017-09-30 13F MASIMO COR Common Stock 574795100 26,612 3,041 12.90 2,304 7.21 0.0024
2017-08-11 2017-06-30 13F MASIMO COR 574795100 23,571 -2,665 -10.16 2,149 -12.21 0.0023
2017-05-12 2017-03-31 13F MASIMO COR Common Stock 574795100 26,236 -1,256 -4.57 2,448 32.04 0.0027
2017-02-10 2016-12-31 13F MASIMO COR Common Stock 574795100 27,492 14,318 108.68 1,854 136.78 0.0021
2016-11-04 2016-09-30 13F MASIMO COR Common Stock 574795100 13,174 -85 -0.64 783 12.50 0.0009
2016-08-05 2016-06-30 13F MASIMO COR Common Stock 574795100 13,259 1,489 12.65 696 40.89 0.0008
2016-05-06 2016-03-31 13F MASIMO COR Common Stock 574795100 11,770 3,997 51.42 494 52.94 0.0006
2016-02-05 2015-12-31 13F MASIMO COM 574795100 7,773 -4,573 -37.04 323 -32.14 0.0004
2015-11-06 2015-09-30 13F MASIMO COR Common Stock 574795100 12,346 -2,928 -19.17 476 -19.59 0.0006
2015-08-05 2015-06-30 13F MASIMO COR Common Stock 574795100 15,274 -122 -0.79 592 16.77 0.0007
2015-05-08 2015-03-31 13F MASIMO COR Common Stock 574795100 15,396 3,154 25.76 507 56.97 0.0006
2015-02-06 2014-12-31 13F/A-1 MASIMO COR Common Stock 574795100 12,242 1,402 12.93 323 39.83 0.0004
2015-02-06 2014-12-31 13F MASIMO COR Common Stock 574795100 12,242 323
2014-11-07 2014-09-30 13F MASIMO COM 574795100 10,840 0 0.00 231 -9.77 0.0003
2014-08-08 2014-06-30 13F MASIMO COM 574795100 10,840 -3,560 -24.72 256 -34.69 0.0003
2014-05-09 2014-03-31 13F MASIMO COM 574795100 14,400 160 1.12 392 -5.77 0.0005
2014-02-07 2013-12-31 13F MASIMO COM 574795100 14,240 -1,313 -8.44 416 0.48 0.0006
2013-11-01 2013-09-30 13F MASIMO COM 574795100 15,553 0 0.00 414 25.08 0.0006
2013-08-02 2013-06-30 13F MASIMO COM 574795100 15,553 15,553 331 0.0005
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.