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Disclosery

MASI MASIMO CORP

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Stock (common)

359 managers (367 13F filers) reported a position in MASI shares at 2024-12-31, 51,425,423 shares in all. 45 filers opened a position and 50 filers sold out during the quarter.

Managers
359
13F filers
367
New
45
Added
117
Reduced
119
Sold out
50
Shares held by filers
51,425,423

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2024

Filers in the available 13F reports with a share position at 2024-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.8,698,213$1.44B0.03%-124,05613F-HRTimelineGroup
FMR LLCin group FMR LLC8,097,454$1.34B0.08%+1,340,83613F-HRTimelineGroup
Politan Capital Management LP4,714,746$779M50.51%013F-HRTimeline
VANGUARD GROUP INCgroup of 2 filers holding4,592,394$759M+66,300Timeline
Capital Research Global Investorsin group Capital Research Global Inves…2,454,975$406M0.08%+1,094,64713F-HRTimelineGroup
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…1,735,167$287M0.09%+943,00113F-HRTimelineGroup
T. Rowe Price Investment Management, In…1,662,376$275M0.17%+135,88813F-HRTimeline
STATE STREET CORPin group STATE STREET CORP1,463,466$242M0.01%+24,65213F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.947,391$157M0.05%+878,58713F-HRTimeline
Holocene Advisors, LP835,660$138M0.45%-39,49913F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC801,125$132M0.01%+8,23913F-HRTimelineGroup
Liontrust Investment Partners LLP792,935$131M1.9%-15,75813F-HRTimeline
WESTFIELD CAPITAL MANAGEMENT CO LP768,858$127M0.55%-625,19813F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY737,841$122M0.01%+98513F-HR/ATimelineGroup
RTW INVESTMENTS, LP683,294$113M1.71%-779,10613F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP647,720$107M0.03%+50,02213F-HRTimelineGroup
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.578,635$95.6M0.36%-166,49213F-HRTimelineGroup
SCHRODER INVESTMENT MANAGEMENT GROUP566,469$95.5M0.09%-166,15213F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC441,025$72.9M0.07%+251,47613F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC408,058$67.5M0.06%+378,80513F-HRTimelineGroup
FARALLON CAPITAL MANAGEMENT, L.L.C.397,000$65.6M0.35%-861,56313F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP383,869$63.5M0.01%+82,82813F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co377,836$62.5M0.01%+7,80813F-HRTimelineGroup
Sumitomo Mitsui Trust Group, Inc.in group Sumitomo Mitsui Trust Group, …373,705$61.8M0.04%+1,52213F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding350,274$57.9M+183,121Timeline
Corient Private Wealth LPin group Corient Private Wealth LP347,683$57.5M0.1%+343,79713F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp337,221$55.7M0.01%-4,73913F-HRTimelineGroup
BAMCO INC /NY/in group Baron Capital307,144$50.8M0.13%-40,05613F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.277,960$45.9M0.01%+192,80213F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/250,786$41.5M<0.01%+181,07013F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.248,499$41.1M0.11%new13F-HRTimelineGroup
CRAMER ROSENTHAL MCGLYNN LLC222,817$36.8M2.08%+37,80013F-HRTimeline
Assenagon Asset Management S.A.216,051$35.7M0.06%+194,78813F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC215,946$35.7M0.01%+16,08513F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC203,971$33.7M0.01%13F-HR/ATimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC202,252$33.4M0.01%-129,82413F-HRTimelineGroup
COMERICA BANK141,378$23.4M0.09%-103,70313F-HR/ATimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC138,122$22.8M0.02%+133,82513F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO128,639$21.3M<0.01%-27,21413F-HRTimelineGroup
Gotham Asset Management, LLC127,780$21.1M0.2%-25,70613F-HRTimeline
RHUMBLINE ADVISERS124,373$20.6M0.02%-2,64113F-HR/ATimeline
GAMCO Investors (Gabelli)group of 2 filers holding117,500$19.4M0Timeline
Amundiin group Amundi111,481$18.8M0.01%+87,44613F-HRTimelineGroup
FIL Ltdin group FIL Ltd110,332$18.2M0.02%+4,62413F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/107,303$17.7M<0.01%-10,54213F-HRTimelineGroup
BLI - Banque de Luxembourg Investments101,200$17.1M0.46%13F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding102,718$17M+153Timeline
Legal & General Group Plcin group Legal & General Group Plc97,187$16.1M<0.01%+3,12213F-HRTimelineGroup
GREAT LAKES ADVISORS, LLC95,730$15.8M0.14%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC91,691$15.2M0.01%+29,60313F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…90,901$15M0.04%-46,49213F-HRTimelineGroup
Swiss National Bank89,400$14.8M0.01%+1,10013F-HRTimeline
Catalio Capital Management, LP87,377$14.4M3.16%13F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC86,731$14.3M0.12%+84,34213F-HRTimelineGroup
TD Asset Management Inc84,640$14M0.01%+38,33213F-HRTimeline
Erste Asset Management GmbHin group Erste Asset Management GmbH82,652$13.9M0.17%+27,65213F-HRTimelineGroup
Nuveen Asset Management, LLCin group TIAA75,754$12.5M<0.01%-7,97313F-HRTimelineGroup
California Public Employees Retirement …70,229$11.6M0.01%-3,08413F-HR/ATimeline
Man Group plcin group Man Group plc64,889$10.7M0.03%-335,05613F-HRTimelineGroup
Point72 (DIFC) Ltd58,417$9.66M0.87%new13F-HRTimeline
Walleye Capital LLCin group Walleye Capital LLC54,938$9.08M0.09%+10,06313F-HRTimelineGroup
Retirement Systems of Alabama54,035$8.93M0.03%-60,22513F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC53,219$8.8M<0.01%+13,26213F-HR/ATimelineGroup
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.52,734$8.72M0.02%-65,88113F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …51,457$8.51M0.01%+14,93113F-HRTimelineGroup
Woodline Partners LP51,185$8.46M0.06%+41,88513F-HRTimeline
Corebridge Financial, Inc.in group Corebridge Financial, Inc.50,536$8.35M0.05%-1,93013F-HRTimelineGroup
Allspring Global Investments Holdings, …in group Allspring Global Investments …48,764$8.22M0.01%+46,37013F-HRTimelineGroup
LOGAN CAPITAL MANAGEMENT INC47,787$7.9M0.33%-2,56513F-HRTimeline
Ace Management Global Ltd.47,694$7.88M100%-917,81013F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP47,328$7.82M0.01%+41,95213F-HRTimelineGroup
Montanaro Asset Management Ltd46,500$7.69M1.59%-9,20013F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…45,248$7.48M0.02%-20013F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding44,389$7.34M-517,038Timeline
STATE BOARD OF ADMINISTRATION OF FLORID…42,861$7.08M0.01%-4013F-HRTimeline
NS Partners Ltd42,649$7.05M0.29%-38813F-HRTimeline
PICTON MAHONEY ASSET MANAGEMENT42,610$7.04M0.27%+28,15313F-HR/ATimeline
LMR Partners LLPin group LMR Partners LLP42,448$7.02M0.12%new13F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…42,383$7.01M0.01%-22913F-HR/ATimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co37,560$6.2M0.01%013F-HRTimelineGroup
Onex Canada Asset Management Inc.37,061$6.13M0.73%+22,63613F-HRTimeline
Atika Capital Management LLCin group Atika Capital Management LLC36,800$6.08M0.79%new13F-HRTimelineGroup
Baird Financial Group, Inc.in group Baird Financial Group, Inc.34,198$5.65M0.01%+26,91413F-HRTimelineGroup
NORGES BANK33,394$5.52M<0.01%-221,99413F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCgroup of 2 filers holding32,612$5.39M+6,084Timeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC31,375$5.19M0.04%new13F-HRTimeline
South Dakota Investment Council30,611$5.06M0.1%013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC30,487$5.04M0.01%+5,80713F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA30,371$5.02M<0.01%+16,88613F-HRTimelineGroup
ZACKS INVESTMENT MANAGEMENT27,229$4.5M0.04%+67113F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO26,601$4.4M0.01%-1,48113F-HRTimelineGroup
Sterling Capital Management LLC26,221$4.33M0.06%-14,71813F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…26,026$4.3M0.02%+2,21413F-HRTimelineGroup
Westmount Partners, LLC25,991$4.3M1.31%013F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC25,622$4.24M0.04%+16,17813F-HRTimeline
ExodusPoint Capital Management, LP25,426$4.2M0.04%new13F-HRTimeline
Cinctive Capital Management LP25,176$4.16M0.22%new13F-HRTimeline
Bellevue Group AGin group Bellevue Group AG24,166$3.99M0.08%new13F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND24,163$3.99M0.01%-2,00013F-HR/ATimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…23,474$3.88M0.04%-39113F-HRTimelineGroup
Advisors Asset Management, Inc.22,974$3.8M0.07%+8,75813F-HR/ATimeline
AMALGAMATED BANK21,304$3.52M0.03%-913F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson21,000$3.47M<0.01%-80013F-HRTimelineGroup
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC20,430$3.38M0.02%+15,97113F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN19,743$3.26M<0.01%-31,85513F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…19,703$3.26M<0.01%+19,18513F-HRTimelineGroup
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …19,182$3.21M<0.01%+14213F-HRTimelineGroup
KBC Group NVin group KBC Group NV19,122$3.16M0.01%+17,84213F-HRTimelineGroup
Treasurer of the State of North Carolina19,085$3.15M0.01%+37013F-HRTimeline
Cardinal Capital Management18,720$3.09M0.49%+20313F-HRTimeline
ABN AMRO INVESTMENT SOLUTIONSin group ABN AMRO INVESTMENT SOLUTIONS18,473$3.05M0.06%-56413F-HRTimelineGroup
STOREBRAND ASSET MANAGEMENT AS17,732$2.93M0.01%013F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD16,938$2.8M0.01%-8,20313F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS16,934$2.8M0.01%-50113F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…16,736$2.77M0.01%013F-HRTimelineGroup
Calamos Advisors LLCin group Calamos Advisors LLC16,280$2.69M0.01%new13F-HRTimelineGroup
YOUSIF CAPITAL MANAGEMENT, LLC16,155$2.67M0.03%-58213F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD16,100$2.66M<0.01%-88,20013F-HRTimeline
Police & Firemen's Retirement System of…15,573$2.57M0.03%13F-HRTimeline
BROWN ADVISORY INCin group BROWN ADVISORY INC15,521$2.57M<0.01%-1,93013F-HRTimelineGroup
STRS OHIO15,400$2.55M0.01%+2,61213F-HRTimeline
State of Tennessee, Department of Treas…15,300$2.53M0.01%-43113F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…15,284$2.53M0.01%-69213F-HRTimeline
Birchview Capital, LP15,280$2.53M2.06%013F-HR/ATimeline
Ensign Peak Advisors, Inc14,876$2.46M<0.01%+71513F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…14,771$2.44M0.02%-68013F-HRTimeline
Creative Planningin group Creative Planning14,197$2.35M<0.01%-50313F-HRTimelineGroup
Empower Advisory Group, LLC14,060$2.32M0.01%-613F-HRTimeline
Wilmington Savings Fund Society, FSB13,717$2.27M0.04%-35,34713F-HRTimeline
LOCKERMAN FINANCIAL GROUP, INC.13,600$2.25M3.83%013F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP13,289$2.2M<0.01%new13F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM13,183$2.18M0.01%+16613F-HRTimeline
Handelsbanken Fonder AB12,930$2.14M0.01%-30013F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC12,659$2.09M<0.01%+1,37413F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC12,559$2.08M<0.01%-49913F-HR/ATimelineGroup
Louisiana State Employees Retirement Sy…12,300$2.03M0.04%+10013F-HRTimeline
Bridgewater Associates, LP11,391$1.88M0.01%+3,77413F-HRTimeline
PARADIGM CAPITAL MANAGEMENT INC/NY11,353$1.88M0.09%013F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…11,305$1.87M<0.01%-1,98013F-HRTimelineGroup
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.10,657$1.76M0.02%new13F-HR/ATimelineGroup
EXCHANGE TRADED CONCEPTS, LLC10,552$1.74M0.04%-1,99813F-HRTimeline
STATE OF MICHIGAN RETIREMENT SYSTEM10,496$1.73M0.01%013F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…10,456$1.73M<0.01%+8313F-HRTimelineGroup
NORTHWESTERN MUTUAL INVESTMENT MANAGEME…group of 2 filers holding10,028$1.66M-1,428Timeline
NEW MEXICO EDUCATIONAL RETIREMENT BOARD9,900$1.64M0.05%013F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…9,815$1.62M0.01%+8213F-HRTimeline
LECAP ASSET MANAGEMENT LTD9,720$1.61M0.44%new13F-HRTimeline
NEOS Investment Management LLC9,580$1.58M0.04%-5,03013F-HRTimeline
Tema ETFs LLC9,580$1.58M0.66%13F-HRTimeline
KLP KAPITALFORVALTNING AS9,400$1.55M0.01%13F-HRTimeline
Illinois Municipal Retirement Fund9,309$1.54M0.02%013F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND9,079$1.5M0.03%+11313F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC9,004$1.49M<0.01%-23613F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…8,901$1.47M0.05%-15813F-HRTimelineGroup
DE BURLO GROUP INC8,552$1.41M0.19%-20013F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…8,195$1.35M<0.01%+31813F-HRTimeline
TOWNSQUARE CAPITAL LLC8,126$1.34M0.02%new13F-HRTimeline
HRT FINANCIAL LP8,033$1.33M0.01%-39,97613F-HRTimeline
Verition Fund Management LLC7,481$1.24M0.01%+5,64113F-HRTimeline
XPONANCE LLC7,025$1.16M0.01%+29913F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC7,021$1.16M0.01%+2,67413F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS7,020$1.16M<0.01%-12,96213F-HRTimelineGroup
HighTower Advisors, LLC6,813$1.13M<0.01%+2,00313F-HRTimeline
Pacer Advisors, Inc.6,452$1.07M<0.01%013F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…6,392$1.06M<0.01%+60813F-HRTimelineGroup
NAVELLIER & ASSOCIATES INC6,310$1.04M0.13%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\6,217$1.03M<0.01%+52613F-HR/ATimelineGroup
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/6,111$1.01M<0.01%-2,95313F-HRTimelineGroup
Polar Capital Holdings Plcin group Polar Capital Holdings Plc6,023$996K0.01%new13F-HRTimelineGroup
NOMURA HOLDINGS INCin group NOMURA ASSET MANAGEMENT CO LTD5,897$975K0.01%-41,68713F-HRTimelineGroup
Eukles Asset Management5,670$937K0.4%-1,33413F-HRTimeline
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.in group LANDSCAPE CAPITAL MANAGEMENT,…5,586$923K0.1%new13F-HRTimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC5,520$912K<0.01%-5213F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC5,494$912K<0.01%new13F-HRTimelineGroup
B.O.S.S. Retirement Advisors, LLC5,332$881K0.25%new13F-HRTimeline
State of Alaska, Department of Revenue5,069$837K0.01%-7013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC5,052$835K<0.01%+5,02213F-HRTimeline
Quantitative Investment Management, LLC4,942$816K0.06%-3,69813F-HRTimeline
COMMERCE BANKin group COMMERCE BANK4,900$810K<0.01%+67913F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…4,841$800K<0.01%013F-HRTimeline
Orion Porfolio Solutions, LLC4,778$790K0.01%+9713F-HRTimeline
Orion Portfolio Solutions, LLC4,778$790K0.01%+9713F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…4,685$774K<0.01%+84013F-HRTimelineGroup
OPPENHEIMER ASSET MANAGEMENT INC.in group OPPENHEIMER ASSET MANAGEMENT …4,568$755K0.01%+98413F-HRTimelineGroup
WINTON GROUP Ltdin group WINTON GROUP Ltd4,410$729K0.05%-3,30213F-HRTimelineGroup
LPL Financial LLC4,310$712K<0.01%+80313F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\4,280$707K<0.01%-9013F-HRTimelineGroup
Private Advisor Group, LLC4,260$704K<0.01%+10513F-HRTimeline
SteelPeak Wealth, LLC4,105$679K0.03%-16913F-HRTimeline
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…3,924$672K<0.01%-2,52913F-HRTimelineGroup
Quantinno Capital Management LP3,990$660K0.01%+1,88013F-HRTimeline
Schonfeld Strategic Advisors LLC3,980$658K<0.01%-4,81113F-HRTimeline
New Age Alpha Advisors, LLC3,971$656K0.03%new13F-HR/ATimeline
Harvest Fund Management Co., Ltdin group Harvest Fund Management Co., …3,891$656K0.03%+3,00513F-HRTimelineGroup
RFG Advisory, LLC3,905$645K0.02%new13F-HRTimeline
NorthCoast Asset Management LLC3,892$643K<0.01%-1013F-HR/ATimeline
Empowered Funds, LLC3,891$643K0.01%+1,79613F-HRTimeline
VERUS CAPITAL PARTNERS, LLC3,651$604K0.06%013F-HR/ATimeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…3,587$593K<0.01%-27,31313F-HRTimeline
Mariner, LLCin group Mariner, LLC3,459$572K<0.01%+32113F-HRTimelineGroup