MASI
MASIMO CORPCompany with tickers: MASI
CIK
937556
CUSIP
574795100
Shares Outstanding
52,204,370
Price
Holdings
Short Volume
Short Interest
Fails to Deliver
SEC Filings
Earnings Calls
Insider Trading
Congress Trades
Report Date:
Holders: 380
Total Value: $6,178,197,791
Total Shares: 47,502,676
Showing top 100 of 380 holders by value
| Holder | Value (USD) | Shares | Type | Discretion | Filed | Action |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | $1,151,761,801 | 8,855,619 | Shares | Sole | 2026-02-12 | View |
| FMR LLC | $1,022,813,167 | 7,864,164 | Shares | Defined | 2026-02-17 | View |
| Politan Capital Management LP | $596,929,618 | 4,589,648 | Shares | Sole | 2026-02-17 | View |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $346,463,579 | 2,663,875 | Shares | Sole | 2026-01-22 | View |
| NAYA CAPITAL MANAGEMENT UK LTD | $202,984,251 | 1,560,697 | Shares | Sole | 2026-02-18 | View |
| WESTFIELD CAPITAL MANAGEMENT CO LP | $197,957,692 | 1,522,049 | Shares | Sole | 2026-02-11 | View |
| STATE STREET CORP | $184,060,391 | 1,415,196 | Shares | Defined | 2026-02-13 | View |
| Alyeska Investment Group, L.P. | $163,785,468 | 1,259,307 | Shares | Sole | 2026-02-13 | View |
| AQR CAPITAL MANAGEMENT LLC | $141,937,856 | 1,091,326 | Shares | Defined | 2026-02-17 | View |
| GEODE CAPITAL MANAGEMENT, LLC | $124,074,118 | 953,976 | Shares | Defined | 2026-02-09 | View |
| RTW INVESTMENTS, LP | $88,869,217 | 683,294 | Shares | Sole | 2026-02-17 | View |
| Capital Research Global Investors | $82,964,493 | 637,894 | Shares | Defined | 2026-02-11 | View |
| GOLDMAN SACHS GROUP INC | $82,808,940 | 636,698 | Shares | Defined | 2026-02-10 | View |
| Liontrust Investment Partners LLP | $81,651,147 | 627,796 | Shares | Sole | 2026-02-17 | View |
| UBS Group AG | $77,941,575 | 599,274 | Shares | Defined | 2026-01-29 | View |
| Squarepoint Ops LLC | $75,922,134 | 583,747 | Shares | Defined | 2026-02-13 | View |
| VIKING GLOBAL INVESTORS LP | $66,895,060 | 514,340 | Shares | Sole | 2026-02-17 | View |
| SCHRODER INVESTMENT MANAGEMENT GROUP | $61,844,050 | 475,504 | Shares | Sole | 2026-02-13 | View |
| AMERIPRISE FINANCIAL INC | $60,921,013 | 468,407 | Shares | Defined | 2026-02-17 | View |
| NORTHERN TRUST CORP | $49,483,145 | 380,464 | Shares | Other | 2026-02-17 | View |
| NORGES BANK | $49,087,375 | 377,421 | Shares | Sole | 2026-02-10 | View |
| BAMCO INC /NY/ | $48,629,303 | 373,899 | Shares | Defined | 2026-02-17 | View |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $47,068,193 | 361,896 | Shares | Sole | 2026-02-13 | View |
| Gotham Asset Management, LLC | $44,505,751 | 342,194 | Shares | Sole | 2026-02-17 | View |
| CI Private Wealth, LLC | $44,445,403 | 341,730 | Shares | Other | 2026-02-19 | View |
| Invesco Ltd. | $41,529,195 | 319,308 | Shares | Defined | 2026-02-19 | View |
| Bank of New York Mellon Corp | $40,121,552 | 308,485 | Shares | Defined | 2026-02-10 | View |
| Qube Research & Technologies Ltd | $38,177,292 | 293,536 | Shares | Sole | 2026-02-17 | View |
| BANK OF AMERICA CORP /DE/ | $37,028,339 | 284,702 | Shares | Defined | 2026-02-17 | View |
| Schonfeld Strategic Advisors LLC | $34,470,582 | 265,036 | Shares | Sole | 2026-02-17 | View |
| Nuveen, LLC | $29,142,283 | 224,068 | Shares | Defined | 2026-02-12 | View |
| MARSHALL WACE, LLP | $28,523,716 | 219,312 | Shares | Other | 2026-02-13 | View |
| PRICE T ROWE ASSOCIATES INC /MD/ | $27,780,035 | 213,594 | Shares | Sole | 2026-02-17 | View |
| Parkman Healthcare Partners LLC | $26,012,000 | 200,000 | Shares | Sole | 2026-02-17 | View |
| Erste Asset Management GmbH | $26,012,000 | 200,000 | Shares | Sole | 2026-02-11 | View |
| MILLENNIUM MANAGEMENT LLC | $24,446,727 | 187,965 | Shares | Sole | 2026-02-17 | View |
| RAYMOND JAMES FINANCIAL INC | $24,257,489 | 186,510 | Shares | Defined | 2026-02-18 | View |
| AMERICAN CENTURY COMPANIES INC | $23,249,265 | 178,758 | Shares | Defined | 2026-02-13 | View |
| DIMENSIONAL FUND ADVISORS LP | $22,623,936 | 173,950 | Shares | Sole | 2026-02-12 | View |
| Man Group plc | $19,172,924 | 147,416 | Shares | Defined | 2026-02-17 | View |
| Grantham, Mayo, Van Otterloo & Co. LLC | $18,705,879 | 143,825 | Shares | Sole | 2026-02-17 | View |
| DF DENT & CO INC | $18,549,937 | 142,626 | Shares | Sole | 2026-02-17 | View |
| RHUMBLINE ADVISERS | $16,199,753 | 124,556 | Shares | Sole | 2026-02-13 | View |
| CITIGROUP INC | $15,767,303 | 121,231 | Shares | Defined | 2026-02-13 | View |
| GW&K Investment Management, LLC | $15,524,221 | 119,362 | Shares | Sole | 2026-02-11 | View |
| UBS ASSET MANAGEMENT AMERICAS INC | $15,472,453 | 118,964 | Shares | Defined | 2026-02-13 | View |
| JPMORGAN CHASE & CO | $15,320,805 | 117,798 | Shares | Other | 2026-02-11 | View |
| TD ASSET MANAGEMENT INC | $14,893,690 | 114,514 | Shares | Sole | 2026-02-10 | View |
| JANE STREET GROUP, LLC | $13,380,702 | 102,881 | Shares | Defined | 2026-02-12 | View |
| PRINCIPAL FINANCIAL GROUP INC | $12,727,410 | 97,858 | Shares | Defined | 2026-02-02 | View |
| Bellevue Group AG | $12,652,887 | 97,285 | Shares | Defined | 2026-02-17 | View |
| HRT FINANCIAL LLC | $12,066,446 | 92,776 | Shares | Defined | 2026-02-12 | View |
| Legal & General Group Plc | $12,022,224 | 92,436 | Shares | Defined | 2026-02-09 | View |
| Swiss National Bank | $11,848,466 | 91,100 | Shares | Sole | 2026-02-12 | View |
| Toroso Investments, LLC | $11,093,337 | 85,294 | Shares | Sole | 2026-02-13 | View |
| Rockefeller Capital Management L.P. | $10,924,259 | 83,994 | Shares | Defined | 2026-02-17 | View |
| Engineers Gate Manager LP | $10,854,547 | 83,458 | Shares | Sole | 2026-02-17 | View |
| GAMCO INVESTORS, INC. ET AL | $10,794,980 | 83,000 | Shares | Sole | 2026-02-05 | View |
| Falcon Edge Capital, LP | $9,826,293 | 75,552 | Shares | Sole | 2026-02-13 | View |
| D. E. Shaw & Co., Inc. | $8,586,040 | 66,016 | Shares | Defined | 2026-02-17 | View |
| CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM | $8,240,471 | 63,359 | Shares | Sole | 2026-02-12 | View |
| RENAISSANCE TECHNOLOGIES LLC | $7,790,594 | 59,900 | Shares | Sole | 2026-02-12 | View |
| BARCLAYS PLC | $7,590,040 | 58,358 | Shares | Sole | 2026-02-13 | View |
| Quantbot Technologies LP | $7,403,665 | 56,925 | Shares | Sole | 2026-02-10 | View |
| Retirement Systems of Alabama | $7,126,637 | 54,795 | Shares | Sole | 2026-01-15 | View |
| ALLIANCEBERNSTEIN L.P. | $7,052,243 | 54,223 | Shares | Defined | 2026-02-17 | View |
| Assenagon Asset Management S.A. | $6,961,461 | 53,525 | Shares | Sole | 2026-01-09 | View |
| Verition Fund Management LLC | $6,895,781 | 53,020 | Shares | Sole | 2026-02-13 | View |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $6,424,964 | 49,400 | Shares | Other | 2026-02-17 | View |
| BLI - Banque de Luxembourg Investments | $6,352,000 | 48,839 | Shares | Defined | 2026-02-11 | View |
| CAPITAL FUND MANAGEMENT S.A. | $6,189,035 | 47,586 | Shares | Sole | 2026-02-17 | View |
| Sofinnova Investments, Inc. | $6,008,902 | 46,201 | Shares | Sole | 2026-02-13 | View |
| AMUNDI | $5,704,431 | 43,860 | Shares | Defined | 2026-02-17 | View |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $5,699,619 | 43,823 | Shares | Sole | 2026-02-17 | View |
| CITADEL ADVISORS LLC | $5,599,342 | 43,052 | Shares | Defined | 2026-02-17 | View |
| NS Partners Ltd | $5,507,780 | 42,348 | Shares | Sole | 2026-02-10 | View |
| Walleye Capital LLC | $5,468,892 | 42,049 | Shares | Sole | 2026-02-13 | View |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM | $5,208,642 | 40,048 | Shares | Sole | 2026-01-30 | View |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | $5,169,754 | 39,749 | Shares | Sole | 2026-02-12 | View |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | $5,144,783 | 39,557 | Shares | Sole | 2026-02-17 | View |
| WILSON ASSET MANAGEMENT (INTERNATIONAL) PTY LTD | $5,129,176 | 39,437 | Shares | Sole | 2026-02-03 | View |
| CANADA PENSION PLAN INVESTMENT BOARD | $5,007,310 | 38,500 | Shares | Sole | 2026-02-17 | View |
| STRS OHIO | $4,801,164 | 36,915 | Shares | Sole | 2026-02-02 | View |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $4,315,911 | 33,184 | Shares | Defined | 2026-02-13 | View |
| GABELLI FUNDS LLC | $4,252,962 | 32,700 | Shares | Sole | 2026-02-05 | View |
| Baird Financial Group, Inc. | $3,990,110 | 30,679 | Shares | Defined | 2026-02-13 | View |
| NORDEA INVESTMENT MANAGEMENT AB | $3,683,169 | 28,319 | Shares | Defined | 2026-01-08 | View |
| Campbell & CO Investment Adviser LLC | $3,613,456 | 27,783 | Shares | Sole | 2026-02-12 | View |
| GREAT WEST LIFE ASSURANCE CO /CAN/ | $3,460,896 | 26,610 | Shares | Sole | 2026-02-13 | View |
| LOGAN CAPITAL MANAGEMENT INC | $3,447,240 | 26,505 | Shares | Other | 2026-02-12 | View |
| GLUSKIN SHEFF & ASSOC INC | $3,356,198 | 25,805 | Shares | Sole | 2026-02-13 | View |
| INTECH INVESTMENT MANAGEMENT LLC | $3,220,935 | 24,765 | Shares | Sole | 2026-02-10 | View |
| MetLife Investment Management, LLC | $3,182,828 | 24,472 | Shares | Defined | 2026-02-12 | View |
| Westmount Partners, LLC | $3,151,613 | 24,232 | Shares | Sole | 2026-01-15 | View |
| NEW YORK STATE COMMON RETIREMENT FUND | $3,142,249 | 24,160 | Shares | Sole | 2026-02-12 | View |
| Cerity Partners LLC | $3,092,044 | 23,774 | Shares | Other | 2026-02-11 | View |
| Thrivent Financial for Lutherans | $3,014,010 | 23,174 | Shares | Sole | 2026-02-05 | View |
| AMALGAMATED BANK | $2,802,923 | 21,551 | Shares | Sole | 2026-02-05 | View |
| Cardinal Capital Management | $2,791,347 | 21,462 | Shares | Sole | 2026-01-30 | View |
| Mariner, LLC | $2,789,656 | 21,449 | Shares | Sole | 2026-02-13 | View |