MASIMO CORP - Common Stock, $0.0001 par value (MASI)

Historical Holders from Q1 2014 to Q3 2025

Symbol
MASI on Nasdaq
CUSIP
574795100
Type / Class
Equity / Common Stock, $0.0001 par value
Shares outstanding
57.4M
All holders as of September 30, 2025
Q3 2025
Total 13F shares, excl. options
55.5M
Holdings value
$8.18B
% of all portfolios
0.011%
Grand Portfolio weight change
0%
Number of holders
343
Number of buys
157
Number of sells
-184
Average Value change %
0%
Average buys %
+0.001%
Average sells %
-0.002%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of MASIMO CORP - Common Stock, $0.0001 par value (MASI)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
FMR LLC 15% $1.32B 8.03M FMR LLC Dec 31, 2024
KIANI JOE E 11.1% -2.73% $941M -$30.6M 6.38M -3.15% Joe Kiani Sep 30, 2025
BlackRock Portfolio Management LLC 10.3% $911M 5.54M BlackRock Portfolio Management LLC Feb 28, 2025
BlackRock, Inc. 7.9% $696M 4.23M BlackRock, Inc. Jan 31, 2025

Institutional Holders of MASIMO CORP - Common Stock, $0.0001 par value (MASI)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 55.5M $8.18B -$244M $147.55 343
2025 Q2 57.5M $9.68B +$566M $168.22 373
2025 Q1 54.2M $9.03B +$449M $166.60 389
2024 Q4 51.4M $8.5B +$264M $165.30 358
2024 Q3 50.2M $6.68B +$161M $133.33 357
2024 Q2 49.5M $6.23B -$283M $125.94 350
2024 Q1 51.5M $7.57B +$49.8M $146.85 334
2023 Q4 58.5K $6.86M -$4.1M $117.21 4
2023 Q3 47M $4.12B -$32.2M $87.68 342
2023 Q2 45.4M $7.47B +$84.1M $164.55 399
2023 Q1 44.7M $8.24B +$132M $184.54 416
2022 Q4 44.4M $6.57B -$272M $147.95 394
2022 Q3 46.2M $6.52B +$326M $141.16 398
2022 Q2 44M $5.76B -$155M $130.67 384
2022 Q1 45.2M $6.59B -$684M $145.54 430
2021 Q4 46.3M $13.5B -$7.54M $292.78 496
2021 Q3 46.2M $12.5B +$153M $270.71 460
2021 Q2 43.5M $10.5B +$400M $242.45 441
2021 Q1 43.8M $10.1B -$189M $229.66 466
2020 Q4 45.9M $12.3B +$115M $268.38 472
2020 Q3 45.5M $10.7B -$6.06M $236.06 446
2020 Q2 45.3M $10.3B -$78.6M $227.99 463
2020 Q1 45.8M $8.12B +$50.9M $177.12 388
2019 Q4 44.9M $7.1B +$134M $158.06 374
2019 Q3 44.1M $6.55B -$26.5M $148.79 385
2019 Q2 44.2M $6.57B +$189M $148.82 377
2019 Q1 44.4M $6.14B +$93.8M $138.28 396
2018 Q4 43.9M $4.71B +$2.6M $107.37 359
2018 Q3 43.8M $5.45B +$30.1M $124.54 345
2018 Q2 43.7M $4.26B +$59.5M $97.65 332
2018 Q1 43.6M $3.83B +$188M $87.95 318
2017 Q4 43.9M $3.72B -$101M $84.80 330
2017 Q3 43.7M $3.78B -$3.17M $86.56 312
2017 Q2 43.7M $3.98B +$121M $91.18 328
2017 Q1 42.6M $3.98B +$743M $93.26 361
2016 Q4 40.4M $2.72B -$1.18M $67.40 306
2016 Q3 40.6M $2.41B +$66.5M $59.49 289
2016 Q2 39.1M $2.05B +$8.27M $52.51 259
2016 Q1 38.9M $1.62B -$4.8M $41.84 219
2015 Q4 39.4M $1.63B -$17.7M $41.51 231
2015 Q3 40.3M $1.55B -$9.4M $38.56 215
2015 Q2 40.3M $1.56B -$59.6M $38.74 197
2015 Q1 42.2M $1.39B +$18.6M $32.98 175
2014 Q4 42M $1.11B -$9.76M $26.34 177
2014 Q3 43M $916M -$53.2M $21.28 166
2014 Q2 45.4M $1.07B -$84.8M $23.60 176
2014 Q1 48.5M $1.32B +$23.8M $27.31 167