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Disclosery

MASI MASIMO CORP

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Stock (common)

350 managers (358 13F filers) reported a position in MASI shares at 2025-09-30, 56,209,754 shares in all. 44 filers opened a position and 64 filers sold out during the quarter.

Managers
350
13F filers
358
New
44
Added
120
Reduced
121
Sold out
64
Shares held by filers
56,209,754

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 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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
VERUS CAPITAL PARTNERS, LLC3,651$539K0.04%013F-HR/ATimeline
FORA Capital, LLC3,622$534K0.09%new13F-HRTimeline
Bayforest Capital Ltd3,559$525K0.25%-3,14613F-HRTimeline
SECURIAN ASSET MANAGEMENT, INC3,433$507K0.01%013F-HRTimeline
OXFORD FINANCIAL GROUP, LTD. LLC3,430$506K0.03%013F-HRTimeline
State of Wyoming3,422$505K0.06%new13F-HRTimeline
DRW Securities, LLC3,222$476K0.02%new13F-HRTimeline
Vestmark Advisory Solutions, Inc.3,209$473K0.01%-1,04113F-HRTimeline
Federation des caisses Desjardins du Qu…3,093$456K<0.01%new13F-HRTimeline
EntryPoint Capital, LLC3,072$453K0.18%+23813F-HRTimeline
M&T Bank Corpin group M&T Bank Corp3,007$444K<0.01%+24813F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…2,893$427K0.01%-59313F-HRTimelineGroup
VOLORIDGE INVESTMENT MANAGEMENT, LLC2,863$422K<0.01%new13F-HRTimeline
OPPENHEIMER ASSET MANAGEMENT INC.in group OPPENHEIMER ASSET MANAGEMENT …2,797$413K<0.01%+1,06413F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…2,725$402K<0.01%-12,95213F-HRTimelineGroup
TOWNSQUARE CAPITAL LLC2,685$396K0.06%-6,32913F-HRTimeline
COLDSTREAM CAPITAL MANAGEMENT INC2,668$394K0.01%+39113F-HRTimeline
WORLDQUANT MILLENNIUM ADVISORS LLC2,662$393K<0.01%new13F-HRTimeline
BUCKHEAD CAPITAL MANAGEMENT LLC2,650$391K0.14%013F-HRTimeline
Crossmark Global Holdings, Inc.2,640$390K0.01%-31813F-HRTimeline
180 WEALTH ADVISORS, LLC2,620$387K0.05%-9413F-HRTimeline
Alamea Verwaltungs GmbH2,566$379K0.26%013F-HRTimeline
Wesleyan Assurance Society2,550$376K0.02%013F-HRTimeline
KCM INVESTMENT ADVISORS LLC2,515$371K0.01%013F-HRTimeline
Empowered Funds, LLC2,461$363K<0.01%+34413F-HRTimeline
Assenagon Asset Management S.A.2,457$363K<0.01%-56813F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC2,411$356K<0.01%new13F-HRTimelineGroup
Utah Retirement Systems2,382$351K<0.01%013F-HRTimeline
Versor Investments LP2,252$332K0.06%new13F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…2,194$324K<0.01%-1,07213F-HRTimelineGroup
Hardy Reed LLC2,172$321K0.02%-313F-HRTimeline
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…2,173$321K<0.01%+95813F-HRTimelineGroup
Cadence Bank2,172$320K0.02%013F-HRTimeline
New Age Alpha Advisors, LLC2,171$320K0.01%-3913F-HRTimeline
FIFTH THIRD BANK, NATIONAL ASSOCIATIONgroup of 2 filers holding2,044$302K-5Timeline
Fiduciary Trust Coin group Fiduciary Trust Co2,035$300K<0.01%new13F-HRTimelineGroup
Maryland State Retirement & Pension Sys…2,028$299K0.01%013F-HRTimeline
Quantum Portfolio Management LLC1,988$293K0.09%+74213F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…1,948$293K<0.01%-42013F-HRTimeline
ProShare Advisors LLC1,964$290K<0.01%-3113F-HRTimeline
SILVER OAK SECURITIES, INCORPORATED1,955$288K0.02%new13F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP1,846$272K<0.01%-1,69213F-HRTimelineGroup
Vident Advisory, LLCin group Vident Advisory, LLC1,803$266K<0.01%+5413F-HRTimelineGroup
ASSETMARK, INCin group ASSETMARK, INC1,753$259K<0.01%+21413F-HRTimelineGroup
Bridgewater Associates, LP1,714$253K<0.01%+6913F-HRTimeline
CIBC Asset Management Inc1,669$246K<0.01%013F-HRTimeline
111 Capital1,666$246K0.05%new13F-HRTimeline
M&G PLCin group M&G PLC1,623$240K<0.01%013F-HRTimelineGroup
CAPSTONE INVESTMENT ADVISORS, LLCin group CAPSTONE INVESTMENT ADVISORS,…1,613$238K<0.01%new13F-HRTimelineGroup
Inscription Capital, LLC1,611$238K0.03%-66313F-HRTimeline
MISSION WEALTH MANAGEMENT, LP1,606$237K<0.01%013F-HRTimeline
GC Wealth Management RIA, LLC1,598$236K0.01%new13F-HRTimeline
SHELTON CAPITAL MANAGEMENT1,592$235K0.01%013F-HRTimeline
SYON CAPITAL LLC1,550$229K0.01%-64713F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,534$226K0.01%+1813F-HRTimelineGroup
O'SHAUGHNESSY ASSET MANAGEMENT, LLC1,492$220K<0.01%-25713F-HRTimeline
Marex Group Ltdin group Marex Group Ltd1,486$219K<0.01%new13F-HRTimelineGroup
MML INVESTORS SERVICES, LLC1,479$218K<0.01%-9013F-HRTimeline
apricus wealth, LLC1,462$216K0.12%013F-HRTimeline
Andina Capital Management, LLC1,420$210K0.12%013F-HRTimeline
GREAT LAKES ADVISORS, LLC1,377$203K<0.01%-80,97113F-HRTimeline
KBC Group NVin group KBC Group NV1,258$186K<0.01%013F-HRTimelineGroup
WHITTIER TRUST CO1,134$167K<0.01%013F-HRTimeline
Farther Finance Advisors, LLC1,074$158K<0.01%+86913F-HRTimeline
HARBOR INVESTMENT ADVISORY, LLC999$147K0.01%+39913F-HRTimeline
Allworth Financial LP905$134K<0.01%+51813F-HRTimeline
CWM, LLCin group CWM, LLC864$127K<0.01%-6713F-HRTimelineGroup
iSAM Funds (UK) Ltdin group iSAM Funds (UK) Ltd699$103K0.02%new13F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.681$97.4K<0.01%-13213F-HRTimelineGroup
Quarry LP649$95.8K0.02%new13F-HRTimeline
C M BIDWELL & ASSOCIATES LTD595$87.8K0.04%-213F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.580$86K<0.01%+51513F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
GAMMA Investing LLC504$74.4K<0.01%-20413F-HRTimeline
Clearstead Advisors, LLC470$69.3K<0.01%+7313F-HRTimeline
CI INVESTMENTS INC.in group CI INVESTMENTS INC.419$62K<0.01%-28213F-HRTimelineGroup
DANSKE BANK A/S400$59K<0.01%013F-HR/ATimeline
SIGNATUREFD, LLC382$56.4K<0.01%-213F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP385$54.4K<0.01%+3113F-HRTimelineGroup
DHJJ Financial Advisors, Ltd.360$53.1K0.02%013F-HRTimeline
Blue Trust, Inc.340$50.2K<0.01%013F-HRTimeline
Advisory Services Network, LLC315$46.5K<0.01%new13F-HRTimeline
Smartleaf Asset Management LLC306$43.7K<0.01%+13613F-HRTimeline
Parallel Advisors, LLC284$41.9K<0.01%-1313F-HRTimeline
SBI Securities Co., Ltd.270$39.8K<0.01%-413F-HRTimeline
UMB Bank, n.a.239$35.3K<0.01%-17413F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…227$33.5K<0.01%+3913F-HRTimelineGroup
LANARK FINANCIAL, INC.226$33.3K<0.01%-14213F-HRTimeline
MassMutual Private Wealth & Trust, FSB223$32.9K<0.01%-4013F-HRTimeline
Hilltop National Bank218$32.2K0.01%013F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC141$21K<0.01%+1413F-HRTimelineGroup
SJS Investment Consulting Inc.135$19.9K<0.01%+13213F-HRTimeline
JPL Wealth Management, LLC126$18.6K<0.01%new13F-HRTimeline
NOMURA ASSET MANAGEMENT CO LTDin group NOMURA ASSET MANAGEMENT CO LTD120$17.7K<0.01%013F-HRTimelineGroup
Wealthspire Advisors, LLC112$16.5K<0.01%new13F-HRTimeline
NewEdge Advisors, LLC112$16.5K<0.01%013F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.110$16.2K<0.01%-1413F-HRTimelineGroup
Fourth Dimension Wealth, LLC100$14.8K0.01%013F-HRTimeline
Parkside Financial Bank & Trust93$13.7K<0.01%013F-HRTimeline
Rise Advisors, LLC93$13.7K<0.01%013F-HRTimeline
True Wealth Design, LLC89$13.1K<0.01%-2713F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK83$12.2K<0.01%-413F-HRTimelineGroup
Covestor Ltd81$12K0.01%013F-HRTimeline
CENTRAL TRUST Co79$11.7K<0.01%013F-HRTimeline
MAI Capital Management77$11.4K<0.01%-12513F-HRTimeline
Boreal Capital Management LLC75$11.1K0.01%013F-HRTimeline
Versant Capital Management, Inc71$10.5K<0.01%-1,57613F-HRTimeline
Smithfield Trust Co65$10K<0.01%013F-HRTimeline
Holos Integrated Wealth LLC68$9.84K0.01%013F-HRTimeline
Investors Research Corp50$7.38K<0.01%013F-HRTimeline
Clean Yield Group49$7.23K<0.01%013F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…40$5.9K<0.01%+413F-HRTimelineGroup
AMERIFLEX GROUP, INC.40$5.9K<0.01%+2013F-HRTimeline
Spire Wealth Managementin group Spire Wealth Management39$5.75K<0.01%-513F-HRTimelineGroup
GPS Wealth Strategies Group, LLC37$5.46K<0.01%013F-HRTimeline
Steward Partners Investment Advisory, L…35$5.16K<0.01%013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC30$4.43K<0.01%-413F-HRTimeline
Inlight Wealth Management, LLC30$4.43K<0.01%013F-HRTimeline
Essential Partners LLC30$4.43K<0.01%+113F-HRTimeline
Bell Investment Advisors, Inc29$4.28K<0.01%013F-HRTimeline
Larson Financial Group LLC25$3.69K<0.01%-813F-HRTimeline
Sachetta, LLC23$3.39K<0.01%013F-HRTimeline
WealthCollab, LLC20$2.95K<0.01%013F-HRTimeline
FIRST HORIZON CORP19$2.8K<0.01%13F-HRTimeline
JFS WEALTH ADVISORS, LLC18$2.66K<0.01%-213F-HRTimeline
BROWN BROTHERS HARRIMAN & COin group BROWN BROTHERS HARRIMAN & CO17$2.51K<0.01%013F-HRTimelineGroup
J.Safra Asset Management Corp16$2.36K<0.01%+113F-HRTimeline
IFP Advisors, Inc16$2.36K<0.01%+1613F-HR/ATimeline
Private Wealth Management Group, LLC15$2.21K<0.01%013F-HRTimeline
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.15$2.21K<0.01%-4013F-HRTimelineGroup
ELEVATION WEALTH PARTNERS, LLC12$1.77K<0.01%new13F-HR/ATimeline
ADIRONDACK TRUST CO12$1.77K<0.01%013F-HRTimeline
HARBOUR INVESTMENTS, INC.9$1.33K<0.01%013F-HRTimeline
Hemington Wealth Management9$1K<0.01%-2913F-HRTimeline
MATHER GROUP, LLC.6$885<0.01%new13F-HRTimeline
Leonteq Securities AG6$885<0.01%013F-HRTimeline
Heartwood Wealth Advisors LLC6$885<0.01%new13F-HRTimeline
Quent Capital, LLC6$885<0.01%new13F-HRTimeline
Root Financial Partners, LLC6$885<0.01%new13F-HRTimeline
DiNuzzo Private Wealth, Inc.6$839<0.01%013F-HRTimeline
CREATIVE FINANCIAL DESIGNS INC /ADV5$738<0.01%013F-HRTimeline
Prestige Wealth Management Group LLC4$591<0.01%013F-HR/ATimeline
Cromwell Holdings LLC4$591<0.01%013F-HRTimeline
Hughes Financial Services, LLC4$578<0.01%013F-HRTimeline
Bare Financial Services, Inc3$443<0.01%013F-HRTimeline
ROTHSCHILD INVESTMENT LLC2$295<0.01%+113F-HRTimeline
Tortoise Investment Management, LLC2$295<0.01%+113F-HRTimeline
Comprehensive Financial Planning, Inc./…2$295<0.01%013F-HRTimeline
PRIVATE TRUST CO NA1$148<0.01%new13F-HRTimeline
DecisionPoint Financial, LLC1$143<0.01%013F-HRTimeline
Capital Advisors, Ltd. LLC2$00%013F-HRTimelineValue filed as zero, left out of ratios.