Masimo Corporation
US ˙ NasdaqGS ˙ US5747951003

SecurityMASI / Masimo Corporation
InstitutionPitcairn Co
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Pitcairn Co closes position in MASI / Masimo Corporation

On November 12, 2025 - Pitcairn Co filed a 13F-HR form disclosing ownership of 0 shares of Masimo Corporation (US:MASI) valued at $0 USD as of September 30, 2025. The entity filed a previous 13F-HR/A on August 19, 2025 disclosing 1,320 shares of Masimo Corporation. The current value of the position is $0 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)
2025-11-12 2025-09-30 13F MASIMO COM 574795100 0 -100.00 0
2025-08-19 2025-06-30 13F/A-1 MASIMO COM 574795100 1,320 -305 -18.77 222 -17.78 0.0145
2025-08-14 2025-06-30 13F MASIMO COM 574795100 1,306 -319 955 0.0560
2025-05-09 2025-03-31 13F MASIMO COM 574795100 1,625 -5 -0.31 271 0.37 0.0163
2025-02-12 2024-12-31 13F MASIMO COM 574795100 1,630 -5 -0.31 269 23.96 0.0159
2024-11-12 2024-09-30 13F MASIMO COM 574795100 1,635 -163 -9.07 218 -3.98 0.0129
2024-08-13 2024-06-30 13F MASIMO COM 574795100 1,798 -9 -0.50 226 -14.72 0.0138
2024-05-13 2024-03-31 13F MASIMO COM 574795100 1,807 -60 -3.21 265 21.56 0.0172
2024-02-14 2023-12-31 13F MASIMO COM 574795100 1,867 1,867 219 0.0168
2023-11-13 2023-09-30 13F MASIMO COM 574795100 0 -1,603 -100.00 0 -100.00
2023-08-11 2023-06-30 13F MASIMO COM 574795100 1,603 -29 -1.78 264 -12.62 0.0229
2023-05-05 2023-03-31 13F MASIMO COM 574795100 1,632 -5 -0.31 301 24.38 0.0277
2023-02-13 2022-12-31 13F MASIMO COM 574795100 1,637 13 0.80 242 5.68 0.0242
2022-11-14 2022-09-30 13F MASIMO COM 574795100 1,624 17 1.06 229 9.05 0.0248
2022-08-12 2022-06-30 13F MASIMO COM 574795100 1,607 -379 -19.08 210 -27.34 0.0222
2022-05-12 2022-03-31 13F MASIMO COM 574795100 1,986 -3,492 -63.75 289 -81.98 0.0252
2022-02-14 2021-12-31 13F MASIMO COM 574795100 5,478 -118 -2.11 1,604 5.87 0.1032
2021-11-10 2021-09-30 13F MASIMO COM 574795100 5,596 -157 -2.73 1,515 8.60 0.1047
2021-08-11 2021-06-30 13F MASIMO COM 574795100 5,753 906 18.69 1,395 25.34 0.0936
2021-05-10 2021-03-31 13F MASIMO COM 574795100 4,847 435 9.86 1,113 -6.00 0.0790
2021-02-05 2020-12-31 13F MASIMO COM 574795100 4,412 -36 -0.81 1,184 12.76 0.0904
2020-11-03 2020-09-30 13F MASIMO COM 574795100 4,448 517 13.15 1,050 17.06 0.0892
2020-07-28 2020-06-30 13F MASIMO COM 574795100 3,931 -92 -2.29 897 25.81 0.0862
2020-05-13 2020-03-31 13F MASIMO COM 574795100 4,023 1,451 56.42 713 75.62 0.0844
2020-02-12 2019-12-31 13F MASIMO COM 574795100 2,572 223 9.49 406 16.00 0.0376
2019-11-12 2019-09-30 13F MASIMO COM 574795100 2,349 -162 -6.45 350 -6.42 0.0345
2019-08-12 2019-06-30 13F MASIMO COM 574795100 2,511 -707 -21.97 374 -15.96 0.0374
2019-05-07 2019-03-31 13F MASIMO COM 574795100 3,218 -243 -7.02 445 19.62 0.0483
2019-02-12 2018-12-31 13F MASIMO COM 574795100 3,461 -359 -9.40 372 -21.85 0.0412
2018-11-02 2018-09-30 13F MASIMO COM 574795100 3,820 -441 -10.35 476 14.42 0.0494
2018-08-02 2018-06-30 13F MASIMO COM 574795100 4,261 -919 -17.74 416 -8.77 0.0442
2018-05-11 2018-03-31 13F MASIMO COM 574795100 5,180 1,074 26.16 456 31.03 0.0484
2018-02-13 2017-12-31 13F MASIMO COM 574795100 4,106 -15 -0.36 348 -2.52 0.0347
2017-11-03 2017-09-30 13F MASIMO COM 574795100 4,121 -164 -3.83 357 -8.46 0.0404
2017-08-02 2017-06-30 13F MASIMO COM 574795100 4,285 108 2.59 390 0.00 0.0468
2017-05-08 2017-03-31 13F MASIMO COM 574795100 4,177 -1,209 -22.45 390 7.44 0.0472
2017-02-06 2016-12-31 13F MASIMO COM 574795100 5,386 -461 -7.88 363 4.31 0.0449
2016-11-09 2016-09-30 13F MASIMO COM 574795100 5,847 -438 -6.97 348 5.45 0.0433
2016-07-25 2016-06-30 13F MASIMO CL A 574795100 6,285 6,285 330 0.0423
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.