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Disclosery

MASI MASIMO CORP

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Stock (common)

356 managers (363 13F filers) reported a position in MASI shares at 2024-09-30, 50,449,130 shares in all. 59 filers opened a position and 48 filers sold out during the quarter.

Managers
356
13F filers
363
New
59
Added
110
Reduced
122
Sold out
48
Shares held by filers
50,449,130

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, Q3 2024

Filers in the available 13F reports with a share position at 2024-09-30, 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.8,822,269$1.18B0.02%13F-HRTimelineGroup
FMR LLCin group FMR LLC6,756,618$901M0.05%+1,970,88313F-HRTimelineGroup
Politan Capital Management LP4,714,746$629M35.5%013F-HRTimeline
VANGUARD GROUP INCgroup of 2 filers holding4,526,094$603M-216,631Timeline
T. Rowe Price Investment Management, In…1,526,488$204M0.12%+372,13713F-HRTimeline
RTW INVESTMENTS, LP1,462,400$195M2.82%013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP1,438,814$192M0.01%+10,17913F-HRTimelineGroup
WESTFIELD CAPITAL MANAGEMENT CO LP1,394,056$186M0.84%+262,37013F-HRTimeline
Capital Research Global Investorsin group Capital Research Global Inves…1,360,328$181M0.04%+303,19213F-HRTimelineGroup
FARALLON CAPITAL MANAGEMENT, L.L.C.1,258,563$168M0.92%+139,00013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Ace Management Global Ltd.965,504$129M38.42%-95,41513F-HRTimeline
Holocene Advisors, LP875,159$117M0.47%-162,29113F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC792,886$106M0.01%+11,98413F-HRTimelineGroup
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…792,166$106M0.03%+70,44013F-HRTimelineGroup
Liontrust Investment Partners LLP808,693$102M1.45%013F-HRTimeline
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.745,127$99.3M0.51%+314,19613F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY736,856$98.2M0.01%+261,05313F-HR/ATimelineGroup
SCHRODER INVESTMENT MANAGEMENT GROUP732,621$97.6M0.1%+203,99813F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP597,698$79.7M0.02%+72,10413F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding561,427$74.9M+198,871Timeline
Man Group plcin group Man Group plc399,945$53.3M0.15%+108,15613F-HRTimelineGroup
Sumitomo Mitsui Trust Group, Inc.in group Sumitomo Mitsui Trust Group, …372,183$49.6M0.03%-18,84313F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co370,028$49.3M0.01%-23,26013F-HRTimelineGroup
BAMCO INC /NY/in group Baron Capital347,200$46.3M0.12%013F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp341,960$45.6M0.01%-47,80413F-HRTimelineGroup
Ensemble Capital Management, LLC340,355$45.4M3.85%-66,74713F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC332,076$44.3M0.01%+196,98613F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP301,041$40.1M0.01%-16,26213F-HRTimelineGroup
NORGES BANK255,388$34.1M<0.01%+206,69313F-HR/ATimeline
COMERICA BANK245,081$32.7M0.13%+54,39613F-HRTimeline
ING GROEP NV240,900$32.1M0.19%+141,90013F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC199,861$26.6M0.01%+108,07313F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC189,549$25.3M0.03%-37,94113F-HRTimelineGroup
CRAMER ROSENTHAL MCGLYNN LLC185,017$24.7M1.37%+166,93613F-HRTimeline
RAYMOND JAMES & ASSOCIATES175,050$23.3M0.01%-5,48313F-HRTimeline
UBS Group AGgroup of 2 filers holding167,153$22.3M+2,464Timeline
Clearline Capital LP160,029$21.3M1.89%new13F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO155,853$20.8M<0.01%+7,72613F-HR/ATimelineGroup
Gotham Asset Management, LLC153,486$20.5M0.21%+72,72713F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…137,393$18.3M0.05%+5,54113F-HRTimelineGroup
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/132,500$17.7M0.02%+87,67513F-HR/ATimelineGroup
RHUMBLINE ADVISERS127,014$16.9M0.02%-75913F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.118,615$15.8M0.03%-15,64613F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/117,845$15.7M<0.01%+2,81613F-HRTimelineGroup
GAMCO Investors (Gabelli)group of 2 filers holding117,500$15.7M0Timeline
Retirement Systems of Alabama114,260$15.2M0.06%-29,97813F-HRTimeline
FIL Ltdin group FIL Ltd105,708$14.1M0.01%+29,56113F-HRTimelineGroup
CANADA PENSION PLAN INVESTMENT BOARD104,300$13.9M0.01%new13F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding102,565$13.7M-46,126Timeline
Twin Tree Management, LP94,416$12.6M0.29%new13F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc94,065$12.5M<0.01%+96213F-HR/ATimelineGroup
Swiss National Bank88,300$11.8M0.01%-20013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.85,158$11.4M<0.01%+2,10713F-HRTimelineGroup
Nuveen Asset Management, LLCin group TIAA83,727$11.2M<0.01%-31,99513F-HRTimelineGroup
California Public Employees Retirement …73,313$9.77M0.01%-1,40013F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/69,716$9.3M<0.01%+1,42713F-HRTimeline
ALLIANCEBERNSTEIN L.P.68,804$9.17M<0.01%+6,88913F-HRTimeline
CITIGROUP INCin group CITIGROUP INC62,088$8.28M0.01%+17,36813F-HRTimelineGroup
Montanaro Asset Management Ltd55,700$7.43M1.32%+2,00013F-HRTimeline
Erste Asset Management GmbHin group Erste Asset Management GmbH55,000$7.33M0.09%-30,00013F-HRTimelineGroup
CAPITAL FUND MANAGEMENT S.A.53,726$7.16M0.08%+30,18713F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC53,226$7.1M0.02%+43,54013F-HRTimelineGroup
Corebridge Financial, Inc.in group Corebridge Financial, Inc.52,466$7M0.04%-4,19513F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN51,598$6.88M<0.01%+1,65013F-HRTimelineGroup
LOGAN CAPITAL MANAGEMENT INC50,352$6.71M0.28%-69313F-HRTimeline
Wilmington Savings Fund Society, FSB49,064$6.54M0.12%-22513F-HRTimeline
HRT FINANCIAL LP48,009$6.4M0.03%+24,64413F-HRTimeline
NOMURA HOLDINGS INCin group NOMURA ASSET MANAGEMENT CO LTD47,584$6.34M0.05%new13F-HR/ATimelineGroup
TD Asset Management Inc46,308$6.17M0.01%+12,44413F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…45,448$6.06M0.01%-3,60013F-HRTimeline
Walleye Capital LLCin group Walleye Capital LLC44,875$5.98M0.06%+44,13313F-HRTimelineGroup
NS Partners Ltd43,037$5.74M0.24%+98613F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…42,901$5.72M0.01%013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…42,612$5.68M0.01%-1,14913F-HR/ATimeline
Sterling Capital Management LLC40,939$5.46M0.07%13F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC39,957$5.33M<0.01%+24,13713F-HR/ATimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding39,663$5.29M-54,870Timeline
PEAK6 Investments LLC39,515$5.27M0.26%+7,17313F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co37,560$5.01M0.01%+10,14613F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …36,526$4.87M<0.01%-1,20913F-HRTimelineGroup
BANK OF NOVA SCOTIAin group BANK OF NOVA SCOTIA35,438$4.72M0.01%new13F-HRTimelineGroup
Roubaix Capital, LLC34,041$4.54M2.5%+9,20213F-HRTimeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…30,900$4.12M0.01%new13F-HRTimeline
South Dakota Investment Council30,611$4.08M0.08%013F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC29,253$3.9M<0.01%-724,49013F-HRTimelineGroup
SG Americas Securities, LLC28,967$3.86M0.01%new13F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO28,082$3.74M<0.01%+4,48813F-HRTimelineGroup
ZACKS INVESTMENT MANAGEMENT26,558$3.54M0.03%-29613F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC26,528$3.54M<0.01%+4,22513F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND26,163$3.49M<0.01%-11,57913F-HR/ATimeline
Westmount Partners, LLC25,991$3.47M1.04%013F-HRTimeline
Amundiin group Amundi24,035$3.36M<0.01%new13F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD25,141$3.35M0.01%+6,68413F-HRTimeline
Troluce Capital Advisors LLC25,000$3.33M0.6%new13F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC24,680$3.29M0.01%-4,92313F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.24,358$3.25M<0.01%new13F-HRTimelineGroup
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…23,865$3.18M0.03%-1,66713F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…23,812$3.17M0.02%-67013F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson21,800$2.91M<0.01%013F-HRTimelineGroup
AMALGAMATED BANK21,313$2.84M0.02%-1,45313F-HRTimeline
Assenagon Asset Management S.A.21,263$2.83M0.01%-29,47713F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS19,982$2.66M<0.01%+8,66213F-HRTimelineGroup
ALGERT GLOBAL LLC19,139$2.55M0.07%+5,26013F-HR/ATimeline
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …19,040$2.54M<0.01%new13F-HRTimelineGroup
ABN AMRO INVESTMENT SOLUTIONSin group ABN AMRO INVESTMENT SOLUTIONS19,037$2.54M0.04%-40213F-HRTimelineGroup
Treasurer of the State of North Carolina18,715$2.5M0.01%+8013F-HRTimeline
Cardinal Capital Management18,517$2.47M0.38%+3,07713F-HRTimeline
STOREBRAND ASSET MANAGEMENT AS17,732$2.36M0.01%-10,28613F-HRTimeline
BROWN ADVISORY INCin group BROWN ADVISORY INC17,451$2.33M<0.01%-12013F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS17,435$2.33M0.01%+13,78413F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd17,157$2.29M0.17%new13F-HRTimelineGroup
YOUSIF CAPITAL MANAGEMENT, LLC16,737$2.23M0.02%-2,44113F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…16,736$2.23M0.01%+19413F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC16,216$2.16M<0.01%new13F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…15,976$2.13M0.01%-77013F-HRTimeline
State of Tennessee, Department of Treas…15,731$2.1M0.01%-3,71913F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…15,456$2.06M0.1%+11,40713F-HRTimelineGroup
TEACHERS RETIREMENT SYSTEM OF THE STATE…15,451$2.06M0.02%-39013F-HRTimeline
Birchview Capital, LP15,280$2.04M1.76%013F-HR/ATimeline
Creative Planningin group Creative Planning14,700$1.96M<0.01%-91613F-HRTimelineGroup
NEOS Investment Management LLC14,610$1.95M0.06%+1,12113F-HRTimeline
Onex Canada Asset Management Inc.14,425$1.93M0.23%new13F-HRTimeline
PICTON MAHONEY ASSET MANAGEMENT14,457$1.93M0.07%-9,59313F-HRTimeline
NATIXISin group Natixis Investment Managers14,386$1.92M0.01%-91,43013F-HRTimelineGroup
Advisors Asset Management, Inc.14,216$1.9M0.03%+50113F-HR/ATimeline
Ensign Peak Advisors, Inc14,161$1.89M<0.01%013F-HRTimeline
Empower Advisory Group, LLC14,066$1.88M0.01%+613F-HRTimeline
LOCKERMAN FINANCIAL GROUP, INC.13,600$1.81M3.07%-80013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA13,485$1.8M<0.01%-13,35613F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…13,285$1.77M<0.01%-1,33913F-HRTimelineGroup
Handelsbanken Fonder AB13,230$1.76M0.01%+2,00013F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC13,058$1.74M<0.01%-89113F-HR/ATimelineGroup
ARIZONA STATE RETIREMENT SYSTEM13,017$1.74M0.01%+42613F-HRTimeline
STRS OHIO12,788$1.71M0.01%new13F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC12,550$1.67M0.04%+1,86213F-HRTimeline
SIMPLEX TRADING, LLC12,529$1.67M0.06%+6,16913F-HRTimeline
Louisiana State Employees Retirement Sy…12,200$1.63M0.03%-40013F-HRTimeline
NORTHWESTERN MUTUAL INVESTMENT MANAGEME…group of 2 filers holding11,456$1.53M+1,154Timeline
PARADIGM CAPITAL MANAGEMENT INC/NY11,353$1.51M0.07%013F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC11,285$1.5M<0.01%+61413F-HRTimelineGroup
AXQ CAPITAL, LP11,133$1.48M0.45%new13F-HRTimeline
Teza Capital Management LLC10,919$1.46M0.16%+1,14013F-HRTimeline
STATE OF MICHIGAN RETIREMENT SYSTEM10,496$1.4M0.01%-20013F-HRTimeline
Edgestream Partners, L.P.10,449$1.39M0.06%+5,32513F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…10,373$1.38M<0.01%-1,206,98413F-HRTimelineGroup
Shay Capital LLC10,150$1.35M0.4%new13F-HRTimeline
Engineers Gate Manager LP9,980$1.33M0.03%-1,09413F-HRTimeline
NEW MEXICO EDUCATIONAL RETIREMENT BOARD9,900$1.32M0.04%013F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…9,733$1.3M0.01%-15113F-HRTimeline
Versor Investments LP9,591$1.28M0.2%+4,31313F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC9,444$1.26M0.01%-83413F-HRTimeline
Illinois Municipal Retirement Fund9,309$1.24M0.02%013F-HRTimeline
Woodline Partners LP9,300$1.24M0.01%-176,69013F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC9,240$1.23M<0.01%-57613F-HRTimeline
ClariVest Asset Management LLC9,609$1.21M0.12%013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…9,059$1.21M0.04%-42613F-HRTimelineGroup
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/9,064$1.21M<0.01%+3,33513F-HRTimelineGroup
OREGON PUBLIC EMPLOYEES RETIREMENT FUND8,966$1.2M0.02%-30013F-HRTimeline
Campbell & CO Investment Adviser LLC8,959$1.19M0.09%-19,79113F-HRTimeline
RAYMOND JAMES TRUST N.A.in group RAYMOND JAMES FINANCIAL INC8,814$1.18M0.03%+2,40013F-HRTimelineGroup
Schonfeld Strategic Advisors LLC8,791$1.17M0.01%-2,87913F-HRTimeline
DE BURLO GROUP INC8,752$1.17M0.14%-1,10013F-HRTimeline
Quantitative Investment Management, LLC8,640$1.15M0.11%-2,49413F-HRTimeline
GSA CAPITAL PARTNERS LLP8,230$1.1M0.08%-3,97813F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…7,877$1.05M<0.01%013F-HR/ATimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd7,712$1.03M0.07%new13F-HRTimelineGroup
Bridgewater Associates, LP7,617$1.02M0.01%-2,84513F-HRTimeline
Baird Financial Group, Inc.in group Baird Financial Group, Inc.7,284$971K<0.01%+2,90013F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.7,280$971K<0.01%-42913F-HRTimelineGroup
Lombard Odier Asset Management (USA) Co…7,171$956K0.36%new13F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC7,169$953K<0.01%new13F-HRTimelineGroup
Eukles Asset Management7,004$934K0.37%-29513F-HRTimeline
XPONANCE LLC6,726$897K0.01%-2213F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC6,636$885K<0.01%+4,41513F-HRTimelineGroup
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…6,453$860K<0.01%-23413F-HRTimelineGroup
Pacer Advisors, Inc.6,452$860K<0.01%-23013F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…5,784$771K<0.01%+38313F-HRTimelineGroup
Avior Wealth Management, LLC5,731$764K0.03%+81213F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\5,691$759K<0.01%-2213F-HR/ATimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC5,572$743K<0.01%-10613F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP5,376$717K<0.01%-74,02913F-HRTimelineGroup
State of Alaska, Department of Revenue5,139$685K0.01%+34513F-HRTimeline
Centiva Capital, LP5,087$678K0.03%new13F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…4,841$645K<0.01%013F-HRTimeline
HighTower Advisors, LLC4,810$640K<0.01%-40813F-HRTimeline
Orion Porfolio Solutions, LLC4,681$624K0.01%-54013F-HRTimeline
Orion Portfolio Solutions, LLC4,681$624K0.01%-54013F-HRTimeline
Allianz Asset Management GmbHin group Allianz SE4,557$608K<0.01%-2,15013F-HRTimelineGroup
Graham Capital Management, L.P.4,483$598K0.02%new13F-HRTimeline
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC4,459$595K<0.01%new13F-HRTimelineGroup
BROWN CAPITAL MANAGEMENT LLC4,404$587K0.01%-22,40713F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\4,370$583K<0.01%-10113F-HRTimelineGroup
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC4,347$580K<0.01%-15213F-HRTimelineGroup
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC4,297$573K<0.01%-11813F-HRTimelineGroup
SteelPeak Wealth, LLC4,274$570K0.03%new13F-HRTimeline
COMMERCE BANKin group COMMERCE BANK4,221$563K<0.01%+3313F-HRTimelineGroup
Private Advisor Group, LLC4,155$554K<0.01%-18513F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP3,895$519K<0.01%-23313F-HRTimelineGroup
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC3,894$519K0.09%+3,85613F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd3,893$519K0.03%new13F-HRTimeline