Masimo Corporation

Historical 13F Holders

Symbol
MASI
CUSIP
574795100
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Shares Held, Excluding Options
Total Filers

13D/G Filers

Each filer's latest filing for 574795100 since 12/18/2024, largest first.

Filer % of Class Filed
BlackRock, Inc. 13G/A 7.9% 2/7/2025
Event 1/31/2025
Kiani Joe E 13G/A 6.5% 5/14/2026
Event 3/31/2026
Barclays PLC 13G 5.5% 5/14/2026
Event 3/31/2026
Under 5%, checked the "5 percent or less" box, or amended by a later filing (5)
FMR LLC 13G/A
4.5% 3/6/2026
Event 2/27/2026
BlackRock Portfolio Management LLC 13G/A 0.2% 4/30/2026
Event 3/31/2026
Pentwater Capital Management LP 13G/A
0% 8/14/2026
Event 6/30/2026
Politan Capital Management LP 13D/A
0% 6/11/2026
Event 6/10/2026
Vanguard Group Inc 13G/A 0% 3/27/2026
Event 3/13/2026

13F Holders by Quarter

Period Filers Shares, Excl. Options Value, Excl. Options
2026 Q2 2 90.0 $16.2k
2026 Q1 458 54.6 M $9.69B
2025 Q4 394 56.3 M $7.32B
2025 Q3 360 56.2 M $8.29B
2025 Q2 380 57.5 M $9.68B
2025 Q1 395 54.3 M $9.04B
2024 Q4 369 51.4 M $8.50B
2024 Q3 367 50.4 M $6.71B
2024 Q2 359 49.6 M $6.24B
2024 Q1 350 51.7 M $7.59B
2023 Q4 352 50.4 M $5.91B
2023 Q3 360 47.7 M $4.18B
2023 Q2 420 46.0 M $7.56B
2023 Q1 432 45.0 M $8.31B
2022 Q4 409 44.4 M $6.58B
2022 Q3 423 46.4 M $6.55B
2022 Q2 421 44.3 M $5.81B
2022 Q1 463 45.4 M $6.61B
2021 Q4 524 46.4 M $13.6B
2021 Q3 479 46.3 M $12.5B
2021 Q2 464 45.8 M $11.1B
2021 Q1 486 45.1 M $10.3B
2020 Q4 496 46.2 M $12.4B
2020 Q3 466 45.5 M $10.7B
2020 Q2 478 45.7 M $10.4B
2020 Q1 402 46.2 M $8.17B
2019 Q4 385 45.3 M $7.16B
2019 Q3 394 44.6 M $6.63B
2019 Q2 388 44.8 M $6.66B
2019 Q1 408 45.0 M $6.22B
2018 Q4 371 44.5 M $4.78B
2018 Q3 354 44.6 M $5.56B
2018 Q2 340 44.2 M $4.32B
2018 Q1 327 43.6 M $3.84B
2017 Q4 339 43.0 M $3.65B
2017 Q3 324 44.0 M $3.80B
2017 Q2 336 44.0 M $4.01B
2017 Q1 366 42.7 M $3.98B
2016 Q4 316 40.5 M $2.73B
2016 Q3 294 40.6 M $2.41B
2016 Q2 267 39.5 M $2.08B
2016 Q1 233 39.7 M $1.66B
2015 Q4 235 39.8 M $1.65B
2015 Q3 221 40.4 M $1.56B
2015 Q2 201 40.9 M $1.58B
2015 Q1 177 42.6 M $1.41B
2014 Q4 178 42.0 M $1.11B
2014 Q3 169 43.1 M $918M
2014 Q2 177 46.1 M $1.09B
2014 Q1 170 48.5 M $1.33B