Security key
574795100
MASIMO CORP - Common Stock, par value $0.001 per share (MASI)
CUSIP: 574795100
Q3 2025 13F Holders as of 30 Sep 2025
- Type / Class
- Equity / Common Stock, par value $0.001 per share
- Shares outstanding
- 52,065,574
- Total 13F shares
- 56,175,682
- Share change
- -1,336,046
- Total reported value
- $8,285,636,420
- Put/Call ratio
- 101%
- Price per share
- $147.55
- Number of holders
- 354
- Value change
- -$242,029,720
- Number of buys
- 160
- Number of sells
- 186
Report period
Q3 2025
Institutions
354
Top holders
10
MASI full security history
Newer quarter: Q4 2025
Previous quarter: Q2 2025
MASIMO CORP SEC filings
MASIMO CORP company facts
Broader feeds
Reporting periods
Holder history for CUSIP 574795100
Recent filing periods:
Top shareholders of MASI - MASIMO CORP - Common Stock, par value $0.001 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
|
Company |
7.9%
from 13D/G
|
10,507,326
|
$1,767,542,297 | — | 30 Jun 2025 | |
| Craig B. Reynolds |
3/4/5
|
Director |
0.04%
|
18,371
mixed-class rows
|
$3,064,557 | — | 29 Apr 2025 | |
| Blair Tripodi |
3/4/5
|
COO, Consumer Division |
0.03%
|
13,818
mixed-class rows
|
$4,885,319 | — | 23 Sep 2025 | |
| Robert A. Chapek |
3/4/5
|
Director |
0.01%
|
3,455
mixed-class rows
|
$857,996 | — | 29 Apr 2025 | |
| FMR LLC |
13F
|
Company |
16%
|
8,181,372
|
$1,376,270,433 | — | 30 Jun 2025 | |
| Politan Capital Management LP |
13F
|
Company |
9.1%
|
4,716,536
|
$793,415,686 | — | 30 Jun 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
8.9%
|
4,638,135
|
$780,227,070 | — | 30 Jun 2025 | |
| T. Rowe Price Investment Management, Inc. |
13F
|
Company |
4.8%
|
2,500,144
|
$420,575,000 | — | 30 Jun 2025 | |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ |
13F
|
Company |
4.7%
|
2,470,393
|
$415,569,511 | — | 30 Jun 2025 | |
| Capital Research Global Investors |
13F
|
Company |
3.6%
|
1,855,670
|
$312,160,807 | — | 30 Jun 2025 | |
| STATE STREET CORP |
13F
|
Company |
2.9%
|
1,486,394
|
$250,041,199 | — | 30 Jun 2025 | |
| Holocene Advisors, LP |
13F
|
Company |
2.4%
|
1,243,607
|
$209,199,570 | — | 30 Jun 2025 | |
| WESTFIELD CAPITAL MANAGEMENT CO LP |
13F
|
Company |
2.3%
|
1,181,203
|
$198,702,016 | — | 30 Jun 2025 | |
| Durable Capital Partners LP |
13F
|
Company |
2.2%
|
1,163,898
|
$195,790,922 | — | 30 Jun 2025 | |
| Alyeska Investment Group, L.P. |
13F
|
Company |
2.2%
|
1,134,490
|
$190,843,908 | — | 30 Jun 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.7%
|
896,418
|
$150,817,391 | — | 30 Jun 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
1.6%
|
844,067
|
$141,988,951 | — | 30 Jun 2025 | |
| VIKING GLOBAL INVESTORS LP |
13F
|
Company |
1.5%
|
767,426
|
$129,096,402 | — | 30 Jun 2025 | |
| MORGAN STANLEY |
13F
|
Company |
1.5%
|
767,375
|
$129,088,176 | — | 30 Jun 2025 | |
| Liontrust Investment Partners LLP |
13F
|
Company |
1.4%
|
708,300
|
$119,150,226 | — | 30 Jun 2025 | |
| RTW INVESTMENTS, LP |
13F
|
Company |
1.3%
|
683,294
|
$114,943,717 | — | 30 Jun 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
1%
|
523,226
|
$88,019,648 | — | 30 Jun 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.91%
|
471,525
|
$79,319,935 | — | 30 Jun 2025 | |
| Sumitomo Mitsui Trust Group, Inc. |
13F
|
Company |
0.9%
|
471,041
|
$79,238,517 | — | 30 Jun 2025 | |
| SCHRODER INVESTMENT MANAGEMENT GROUP |
13F
|
Company |
0.86%
|
448,501
|
$75,446,838 | — | 30 Jun 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.78%
|
405,460
|
$68,207,000 | — | 30 Jun 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.76%
|
394,487
|
$66,360,604 | — | 30 Jun 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.75%
|
388,542
|
$65,360,536 | — | 30 Jun 2025 | |
| BAMCO INC /NY/ |
13F
|
Company |
0.74%
|
384,589
|
$64,695,562 | — | 30 Jun 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.71%
|
370,734
|
$62,364,873 | — | 30 Jun 2025 | |
| Corient Private Wealth LLC |
13F
|
Company |
0.63%
|
330,414
|
$55,582,245 | — | 30 Jun 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.61%
|
317,593
|
$53,425,477 | — | 30 Jun 2025 | |
| Grantham, Mayo, Van Otterloo & Co. LLC |
13F
|
Company |
0.46%
|
240,563
|
$40,467,508 | — | 30 Jun 2025 | |
| Invesco Ltd. |
13F
|
Company |
0.46%
|
237,303
|
$39,919,026 | — | 30 Jun 2025 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
0.4%
|
209,563
|
$35,252,689 | — | 30 Jun 2025 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.38%
|
200,229
|
$33,682,546 | — | 30 Jun 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.37%
|
190,176
|
$31,991,407 | — | 30 Jun 2025 | |
| COMERICA BANK |
13F
|
Company |
0.36%
|
189,822
|
$31,931,836 | — | 30 Jun 2025 | |
| Woodline Partners LP |
13F
|
Company |
0.35%
|
182,709
|
$30,735,308 | — | 30 Jun 2025 | |
| TD ASSET MANAGEMENT INC |
13F
|
Company |
0.32%
|
167,176
|
$28,122,347 | — | 30 Jun 2025 | |
| Gotham Asset Management, LLC |
13F
|
Company |
0.32%
|
165,356
|
$27,816,186 | — | 30 Jun 2025 | |
| AMERICAN CENTURY COMPANIES INC |
13F
|
Company |
0.29%
|
152,228
|
$25,607,794 | — | 30 Jun 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.29%
|
149,658
|
$25,175,468 | — | 30 Jun 2025 | |
| HAWK RIDGE CAPITAL MANAGEMENT LP |
13F
|
Company |
0.29%
|
148,685
|
$25,011,791 | — | 30 Jun 2025 | |
| UBS Group AG |
13F
|
Company |
0.27%
|
142,164
|
$23,914,828 | — | 30 Jun 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.27%
|
138,090
|
$23,229,500 | — | 30 Jun 2025 | |
| RHUMBLINE ADVISERS |
13F
|
Company |
0.24%
|
127,496
|
$21,447,313 | — | 30 Jun 2025 | |
| Quantinno Capital Management LP |
13F
|
Company |
0.23%
|
120,383
|
$20,250,828 | — | 30 Jun 2025 | |
| Rockefeller Capital Management L.P. |
13F
|
Company |
0.22%
|
115,626
|
$19,450,606 | — | 30 Jun 2025 | |
| ROYAL BANK OF CANADA |
13F
|
Company |
0.21%
|
109,690
|
$18,451,000 | — | 30 Jun 2025 |
Institutional Holders of MASIMO CORP - Common Stock, par value $0.001 per share (MASI) as of Q3 2025
As of 30 Sep 2025,
MASIMO CORP - Common Stock, par value $0.001 per share (MASI) was held by
354 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
56,175,682 shares.
The largest 10 holders included
BlackRock, Inc., FMR LLC, VANGUARD GROUP INC, Politan Capital Management LP, MASSACHUSETTS FINANCIAL SERVICES CO /MA/, T. Rowe Price Investment Management, Inc., Capital Research Global Investors, STATE STREET CORP, WESTFIELD CAPITAL MANAGEMENT CO LP, and Alyeska Investment Group, L.P..
This page lists
356
institutional shareholders reporting positions in this security
for the Q3 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q3 2025 vs Q2 2025 Across Filers
Q2 2025 holders
375
Q3 2025 holders
354
Holder diff
-21
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 Value $ | Q3 2025 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.