馬西莫公司
MX ˙ BMV ˙ US5747951003
SecurityMX:MASI / Masimo Corporation
InstitutionXponance, Inc.
Latest Disclosed Ownership9,958 shares
Latest Disclosed Value $ 1,771,229
Xponance, Inc. reports 13.96% increase in ownership of MASI / Masimo Corporation

On May 13, 2026 - Xponance, Inc. filed a 13F-HR form disclosing ownership of 9,958 shares of Masimo Corporation (MX:MASI) valued at $1,771,229 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 8,738 shares of Masimo Corporation. This represents a change in shares of 13.96% 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 9,958 1,220 13.96 1,771 55.90 0.0126
2026-02-12 2025-12-31 13F MASIMO COM 574795100 8,738 -692 -7.34 1,136 -18.33 0.0085
2025-11-12 2025-09-30 13F MASIMO COM 574795100 9,430 224 2.43 1,391 -10.14 0.0110
2025-08-14 2025-06-30 13F MASIMO COM 574795100 9,206 2,105 29.64 1,549 30.85 0.0129
2025-05-01 2025-03-31 13F MASIMO COM 574795100 7,101 76 1.08 1,183 1.89 0.0114
2025-02-11 2024-12-31 13F MASIMO COM 574795100 7,025 299 4.45 1,161 29.58 0.0106
2024-11-12 2024-09-30 13F MASIMO COM 574795100 6,726 -22 -0.33 897 5.54 0.0087
2024-08-14 2024-06-30 13F MASIMO COM 574795100 6,748 -2,392 -26.17 850 -36.74 0.0087
2024-05-13 2024-03-31 13F MASIMO COM 574795100 9,140 -495 -5.14 1,342 18.87 0.0141
2024-01-31 2023-12-31 13F MASIMO COM 574795100 9,635 -256 -2.59 1,129 30.22 0.0135
2023-10-24 2023-09-30 13F MASIMO COM 574795100 9,891 -995 -9.14 867 -51.59 0.0118
2023-07-14 2023-06-30 13F MASIMO COM 574795100 10,886 748 7.38 1,791 -4.22 0.0239
2023-04-18 2023-03-31 13F MASIMO COM 574795100 10,138 -3 -0.03 1,871 24.67 0.0273
2023-01-24 2022-12-31 13F MASIMO COM 574795100 10,141 827 8.88 1,500 14.07 0.0243
2022-10-24 2022-09-30 13F MASIMO COM 574795100 9,314 -599 -6.04 1,315 1.54 0.0253
2022-08-02 2022-06-30 13F MASIMO COM 574795100 9,913 577 6.18 1,295 -4.71 0.0260
2022-04-20 2022-03-31 13F MASIMO COM 574795100 9,336 -109 -1.15 1,359 -50.85 0.0226
2022-01-31 2021-12-31 13F MASIMO COM 574795100 9,445 42 0.45 2,765 8.64 0.0434
2021-11-05 2021-09-30 13F MASIMO COM 574795100 9,403 -247 -2.56 2,545 8.76 0.0483
2021-08-12 2021-06-30 13F MASIMO COM 574795100 9,650 -747 -7.18 2,340 -2.01 0.0430
2021-05-10 2021-03-31 13F MASIMO COM 574795100 10,397 -15 -0.14 2,388 -14.53 0.0506
2021-02-11 2020-12-31 13F MASIMO COM 574795100 10,412 25 0.24 2,794 13.95 0.0608
2020-10-26 2020-09-30 13F MASIMO COM 574795100 10,387 885 9.31 2,452 13.20 0.0603
2020-08-14 2020-06-30 13F MASIMO COM 574795100 9,502 9,502 2,166 0.0559
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.