Masimo Corporation
US ˙ NasdaqGS ˙ US5747951003

SecurityMASI / Masimo Corporation
InstitutionONEQ - Fidelity Nasdaq Composite Index Tracking Stock
Latest Disclosed Ownership13,544 shares
Latest Disclosed Value $ 2,200,900
ONEQ - Fidelity Nasdaq Composite Index Tracking Stock reports 0.44% increase in ownership of MASI / Masimo Corporation

On July 24, 2025 - ONEQ - Fidelity Nasdaq Composite Index Tracking Stock filed a NPORT-P form disclosing ownership of 13,544 shares of Masimo Corporation (US:MASI) valued at $2,200,900 USD as of May 31, 2025. The entity filed a previous NPORT-P on April 25, 2025 disclosing 13,484 shares of Masimo Corporation. This represents a change in shares of 0.44% during the quarter. The current value of the position is $2,421,938 USD.

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)
2025-07-24 2025-05-31 NP MASIMO EC US5747951003 13,544 60 0.44 2,201 -13.56 0.0291
2025-04-25 2025-02-28 NP MASIMO EC US5747951003 13,484 324 2.46 2,545 12.11 0.0343
2025-01-27 2024-11-30 NP MASIMO EC US5747951003 13,160 84 0.64 2,271 47.79 0.0308
2024-10-29 2024-08-31 NP MASIMO EC US5747951003 13,076 -1,507 -10.33 1,537 -15.37 0.0228
2024-07-26 2024-05-31 NP MASIMO EC US5747951003 14,583 6,890 89.56 1,816 83.70 0.0288
2024-04-24 2024-02-29 NP MASIMO EC US5747951003 7,693 2,699 54.04 989 111.11 0.0165
2024-01-24 2023-11-30 NP MASIMO EC US5747951003 4,994 301 6.41 468 -12.69 0.0090
2023-10-27 2023-08-31 NP MASIMO EC US5747951003 4,693 -7,627 -61.91 536 -73.11 0.0105
2023-07-26 2023-05-31 NP MASIMO EC US5747951003 12,320 36 0.29 1,994 -3.02 0.0430
2023-04-27 2023-02-28 NP MASIMO EC US5747951003 12,284 270 2.25 2,055 18.04 0.0503
2023-01-26 2022-11-30 NP MASIMO EC US5747951003 12,014 282 2.40 1,741 1.04 0.0435
2022-10-26 2022-08-31 NP MASIMO EC US5747951003 11,732 402 3.55 1,723 8.30 0.0431
2022-07-29 2022-05-31 NP MASIMO EC US5747951003 11,330 312 2.83 1,591 -8.25 0.0405
2022-04-28 2022-02-28 NP MASIMO EC US5747951003 11,018 -310 -2.74 1,735 -44.95 0.0402
2022-01-25 2021-11-30 NP MASIMO EC US5747951003 11,328 301 2.73 3,151 5.21 0.0658
2021-10-26 2021-08-31 NP MASIMO EC US5747951003 11,027 231 2.14 2,994 28.66 0.0656
2021-07-22 2021-05-31 NP MASIMO EC US5747951003 10,796 -24 -0.22 2,328 -14.20 0.0579
2021-04-23 2021-02-28 NP MASIMO EC US5747951003 10,820 630 6.18 2,713 4.59 0.0707
2021-01-20 2020-11-30 NP MASIMO EC US5747951003 10,190 -14 -0.14 2,593 13.48 0.0775
2020-10-16 2020-08-31 NP MASIMO EC US5747951003 10,204 182 1.82 2,286 -5.07 0.0706
2020-07-20 2020-05-31 NP MASIMO EC US5747951003 10,022 1,251 14.26 2,407 68.09 0.0940
2020-04-24 2020-02-29 NP MASIMO EC US5747951003 8,771 1,297 17.35 1,433 23.66 0.0639
2020-01-16 2019-11-30 NP MASIMO EC US5747951003 7,474 7,474 1,159 0.0526
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.