13F

Stock

Masimo Corp

Ticker not mapped · held by 440 managers

Reported value

$9.23B

Holders

440

+119 new · −73 exited

Holders’ est. mark

$1.23B

Price effect on 173 books still in the name

Largest holder

$826.1M

BlackRock, Inc.

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
BlackRock, Inc.4.64M$826.1M$222.1MCut−$325.6M
Politan Capital Management LP4.59M$816.4M$219.4MAdded$219.4M
Pentwater Capital Management LP3.18M$564.9MNew
BARCLAYS PLC2.74M$488.1M$2.79MAdded$480.5M
HBK INVESTMENTS L P2.58M$458.2MNew
MASSACHUSETTS FINANCIAL SERVICES CO /MA/2.34M$416.7M$112MAdded$70.2M
VANGUARD CAPITAL MANAGEMENT LLC2.05M$364.6MHeld
VANGUARD PORTFOLIO MANAGEMENT LLC2.01M$357MHeld
Fidelity1.45M$258.1M$69.4MCut−$764.8M
State Street1.44M$255.7M$67.7MAdded$71.7M
MILLENNIUM MANAGEMENT LLC988.9K$175.9M$8.99MAdded$151.4M
GOLDMAN SACHS GROUP INC984.2K$175.1M$30.4MAdded$92.2M
GEODE CAPITAL MANAGEMENT, LLC956.7K$170.2M$45.6MAdded$46.1M
Icahn Capital832K$147.4M$39.2MAdded$5.46M
Balyasny Asset Management L.P.771K$137.1MNew
MORGAN STANLEY752.4K$133.8M$36MAdded$14.1M
JPMORGAN CHASE & CO572.6K$101.5M$5.57MAdded$86.2M
CITIGROUP INC533.4K$94.9M$5.8MAdded$79.1M
FIL Ltd482K$85.7MNew
First Trust Capital Management L.P.479.4K$85.3MNew
HSBC HOLDINGS PLC473.4K$84.3MNew
UBS Group AG468.3K$83.3M$22.4MAdded$5.35M
Magnetar Financial LLC427.1K$76M$260.8KAdded$75.3M
AQR Arbitrage LLC417K$73.9MNew
NEUBERGER BERMAN GROUP LLC403.3K$71.7M$239.3KAdded$71.1M
NORTHERN TRUST CORP390.4K$69.4M$18.2MAdded$20M
Squarepoint Ops LLC389.4K$69.3M$18.6MCut−$6.67M
CHARLES SCHWAB INVESTMENT MANAGEMENT INC386.9K$68.8M$17.3MAdded$21.7M
Capital Research Global Investors359.1K$63.9M$17.2MCut−$19.1M
Gotham Asset Management, LLC341.5K$60.7M$16.3MAdded$16.2M
WESTFIELD CAPITAL MANAGEMENT CO LP341.2K$60.7M$16.3MCut−$137.3M
ALLIANCEBERNSTEIN L.P.455.4K$59.2M$0Added$52.2M
Hudson Bay Capital Management LP330.7K$58.8MNew
Corient Private Wealth LLC321.6K$57.2M$15.4MAdded$13M
Fort Baker Capital Management LP312.7K$55.6MNew
NEXPOINT ASSET MANAGEMENT, L.P.310.1K$55.2MNew
CAPITOLIS LIQUID GLOBAL MARKETS LLC309.1K$55MHeld
Bank of New York Mellon Corp306.4K$54.5M$14.6MAdded$14.4M
Qube Research & Technologies Ltd291.5K$51.8M$13.9MAdded$13.7M
VANGUARD FIDUCIARY TRUST CO289.9K$51.6MHeld
Citadel281.4K$50M$2.06MAdded$44.4M
WHITEBOX ADVISORS LLC270K$48MNew
NUANCE INVESTMENTS, LLC244.7K$43.5MNew
Amundi243.1K$43.2M$2.1MAdded$37.5M
Slotnik Capital, LLC240.3K$42.7MNew
Renaissance Technologies239.5K$42.6M$2.86MAdded$34.8M
Polar Asset Management Partners Inc.232K$41.3MNew
BANK OF AMERICA CORP /DE/232K$41.3M$11.1MAdded$4.24M
MUFG Securities EMEA plc225.4K$40.1MNew
Beryl Capital Management LLC217.1K$38.6MNew
CANADA PENSION PLAN INVESTMENT BOARD209.5K$37.3M$1.84MAdded$32.3M
Erste Asset Management GmbH200K$35.5M$9.45MAdded$9.45M
WATER ISLAND CAPITAL LLC194.2K$34.5MNew
ALPINE ASSOCIATES MANAGEMENT INC.189K$33.6MNew
AMERICAN CENTURY COMPANIES INC188.1K$33.5M$8.55MAdded$10.2M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP172.6K$30.7MNew
READYSTATE ASSET MANAGEMENT LP171.1K$30.4MNew
RAYMOND JAMES FINANCIAL INC170.5K$30.3M$8.15MAdded$6.07M
Man Group plc166.2K$29.6M$7.05MAdded$10.4M
DIMENSIONAL FUND ADVISORS LP164.4K$29.2M$7.86MAdded$6.62M
Woodline Partners LP153.2K$27.3MNew
BANK OF NOVA SCOTIA152.6K$27.1M$250.9KAdded$26.5M
TUDOR INVESTMENT CORP ET AL143.9K$25.6M$776.5KAdded$23.5M
Capula Management Ltd142.8K$25.4MNew
Champlain Investment Partners, LLC141.3K$25.1MNew
Westchester Capital Management, LLC138.4K$24.6MNew
Grantham, Mayo, Van Otterloo & Co. LLC137.6K$24.5M$6.58MAdded$5.77M
TIG Advisors, LLC135.2K$24MNew
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC133.7K$23.8M$5.69MAdded$8.31M
RHUMBLINE ADVISERS129.6K$23.1M$5.96MAdded$6.86M
GABELLI FUNDS LLC126.1K$22.4M$1.56MAdded$18.2M
Sagefield Capital LP122.2K$21.7MNew
Schonfeld Strategic Advisors LLC117.3K$20.9M$5.61MCut−$13.6M
WINTON GROUP Ltd112.8K$20.1MNew
Weiss Asset Management LP112.6K$20MNew
Nuveen, LLC111.5K$19.8M$5.33MCut−$9.3M
NOMURA HOLDINGS INC109.4K$19.5MNew
PRINCIPAL FINANCIAL GROUP INC102.7K$18.3M$4.68MAdded$5.54M
Soros Fund Management100.8K$17.9MNew
Kryger Capital LLC100.6K$17.9MHeld
SCHRODER INVESTMENT MANAGEMENT GROUP96.2K$17.1M$4.45MCut−$45.3M
GAMCO INVESTORS, INC. ET AL92K$16.4M$3.97MAdded$5.57M
MARSHALL WACE, LLP90.7K$16.1M$4.33MCut−$12.4M
CIBRA Capital Ltd90.4K$16.1MNew
Swiss National Bank90.3K$16.1M$4.32MAdded$4.21M
DEUTSCHE BANK AG\89.4K$15.9M$322KAdded$15M
GABELLI & Co INVESTMENT ADVISERS, INC.88.7K$15.8MNew
California Public Employees Retirement System77.4K$13.8M$3.03MAdded$5.53M
VOLORIDGE INVESTMENT MANAGEMENT, LLC70K$12.5M$1.89MAdded$7.31M
Invesco Ltd.69.1K$12.3M$3.31MCut−$29.2M
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND67.6K$12MNew
Verition Fund Management LLC66.9K$11.9M$2.53MAdded$5M
AMERIPRISE FINANCIAL INC65.2K$11.6M$3.12MCut−$49.3M
PICTON MAHONEY ASSET MANAGEMENT65K$11.6M$502KAdded$10.2M
WILSON ASSET MANAGEMENT (INTERNATIONAL) PTY LTD64K$11.4M$1.89MAdded$6.25M
Legal & General Group Plc62.5K$11.1M$2.99MCut−$897.4K
Mariner, LLC61.3K$10.9M$1.03MAdded$8.11M
Retirement Systems of Alabama56K$9.96M$2.62MAdded$2.83M
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM53.3K$9.48M$2.1MAdded$3.78M
Tidal Investments LLC49.7K$8.84M$2.38MCut−$2.25M
CAXTON ASSOCIATES LLP45.9K$8.17MNew
Lighthouse Investment Partners, LLC42.9K$7.62MNew
NS Partners Ltd42K$7.47M$2.01MAdded$1.96M
VANGUARD ASSET MANAGEMENT, Ltd40.9K$7.27MHeld
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM39.7K$7.05M$1.9MAdded$1.88M
Cerity Partners LLC38.8K$6.9M$1.14MAdded$3.81M
STRS OHIO37.2K$6.62M$1.76MAdded$1.82M
Fortress Investment Group LLC35.9K$6.39MNew
BLI - Banque de Luxembourg Investments48.8K$6.3M−$104.6KCut−$104.6K
CWM, LLC34.7K$6.17M$3.29MAdded$6.17M
Alberta Investment Management Corp34.1K$6.07MNew
IEQ CAPITAL, LLC32.2K$5.73MNew
Groupe la Francaise31.9K$5.68MNew
Engineers Gate Manager LP30.4K$5.41M$1.45MCut−$5.44M
TOKIO MARINE ASSET MANAGEMENT CO LTD29.4K$5.23MNew
STOREBRAND ASSET MANAGEMENT AS27.7K$4.93M$1.33MAdded$1.33M
Quantbot Technologies LP27.4K$4.88M$1.31MCut−$2.53M
NATIXIS25.5K$4.53M$109.3KAdded$4.24M
TPG GP A, LLC25K$4.45MNew
MetLife Investment Management, LLC24.5K$4.36M$1.17MAdded$1.17M
Westmount Partners, LLC24.2K$4.31M$1.16MAdded$1.16M
NEW YORK STATE COMMON RETIREMENT FUND24.2K$4.3M$1.16MAdded$1.16M
Centiva Capital, LP23.7K$4.22MNew
MANUFACTURERS LIFE INSURANCE COMPANY, THE23.6K$4.2M$1.13MCut−$111.6K
ABC ARBITRAGE SA23.6K$4.2MNew
CREDIT INDUSTRIEL ET COMMERCIAL23.1K$4.1MNew
Creative Planning22.9K$4.08M$817.9KAdded$1.85M
Capricorn Fund Managers Ltd22.8K$4.06MNew
Quantinno Capital Management LP22.5K$4M$633.6KAdded$2.28M
NEW YORK LIFE INVESTMENT MANAGEMENT LLC22.2K$3.95MNew
Cardinal Capital Management22.1K$3.94M$1.03MAdded$1.15M
ING GROEP NV21.7K$3.86MNew
Liontrust Investment Partners LLP20.1K$3.58M$962.8KCut−$78.1M
JANUS HENDERSON GROUP PLC20K$3.56M$956KAdded$956K
D. E. Shaw & Co., Inc.19.8K$3.52M$946.1KCut−$5.07M
Police & Firemen's Retirement System of New Jersey19.5K$3.47M$931.5KAdded$931.5K
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS18.9K$3.37M$546.2KAdded$1.88M
Vanguard Global Advisers, LLC18.4K$3.28MHeld
MERCER GLOBAL ADVISORS INC /ADV18.1K$3.23M$519.3KAdded$1.81M
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC17.5K$3.11M$836.5KAdded$640.7K
State of New Jersey Common Pension Fund D16.3K$2.9M$780.3KAdded$737.1K
LMR Partners LLP16.3K$2.9MNew
ExodusPoint Capital Management, LP16K$2.84M$448.7KAdded$1.62M
ADAR1 Capital Management, LLC15K$2.67M$717.1KAdded$717.1K
P SCHOENFELD ASSET MANAGEMENT LP15K$2.67MNew
BROWN ADVISORY INC14.7K$2.62M$704.4KAdded$688.8K
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC16.8K$2.56M$165.8KAdded$996.1K
INTECH INVESTMENT MANAGEMENT LLC14.2K$2.53M$679.7KCut−$692.3K
Baird Financial Group, Inc.14.2K$2.52M$678.5KCut−$1.47M
Empower Advisory Group, LLC14.1K$2.51M$626.6KAdded$804.4K
State of Tennessee, Department of Treasury13.9K$2.48M$564.2KAdded$564.2K
YOUSIF CAPITAL MANAGEMENT, LLC13.9K$2.47M$487.7KAdded$393.6K
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO13.4K$2.39M$642.9KAdded$586.5K
Louisiana State Employees Retirement System13.2K$2.35M$602.4KAdded$709.1K
SEI INVESTMENTS CO13.2K$2.35M$369KAdded$1.34M
Skandinaviska Enskilda Banken AB (publ)13K$2.31MNew
ENVESTNET ASSET MANAGEMENT INC12.6K$2.24M$602.2KAdded$32.7K
ARIZONA STATE RETIREMENT SYSTEM12.5K$2.23M$599.6KAdded$563.6K
Alpine Global Management, LLC12.5K$2.22MNew
Zurcher Kantonalbank (Zurich Cantonalbank)12.1K$2.16M$463.7KAdded$898K
Advisors Asset Management, Inc.12.1K$2.15M$577.5KCut−$434.1K
FIFTH THIRD BANCORP11.7K$2.09M$27.6KAdded$2.01M
Vanguard Investments Australia, Ltd.11.5K$2.05MHeld
PARADIGM CAPITAL MANAGEMENT INC/NY11.4K$2.02M$542.8KAdded$542.8K
WELLS FARGO & COMPANY/MN11.3K$2.02M$542.1KCut−$415.2K
OCCUDO QUANTITATIVE STRATEGIES LP11.3K$2.01M$467.4KAdded$754K
HARVEST MANAGEMENT LLC11K$1.96MNew
STATE OF MICHIGAN RETIREMENT SYSTEM11K$1.96M$516.2KAdded$551.7K
BNP PARIBAS FINANCIAL MARKETS11K$1.96M$360KAdded$976.1K
KLP KAPITALFORVALTNING AS10.9K$1.94M$506.8KAdded$560.1K
Brevan Howard Capital Management LP10.6K$1.89MNew
LOCKERMAN FINANCIAL GROUP, INC.10.5K$1.87M$502KAdded$332.9K
Vanguard Personalized Indexing Management, LLC10.3K$1.82M$359.7KAdded$844.9K
NORTHWESTERN MUTUAL INVESTMENT MANAGEMENT COMPANY, LLC10.2K$1.82M$488.4KAdded$490.7K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.10.2K$1.81M$487KAdded$51.3K
MOORE CAPITAL MANAGEMENT, LP10K$1.78MNew
XPONANCE LLC9.96K$1.77M$417.8KAdded$634.8K
Blackstone Inc.9.38K$1.67MNew
OREGON PUBLIC EMPLOYEES RETIREMENT FUND9.37K$1.67M$433.8KAdded$487.2K
Bellevue Group AG8.75K$1.56M$418.5KCut−$11.1M
Ameritas Investment Partners, Inc.8.41K$1.5M$402.1KCut−$230.1K
LPL Financial LLC8.36K$1.49M$359.1KAdded$509.1K
Rockefeller Capital Management L.P.7.97K$1.42M$381KCut−$9.82M
ALLSTATE CORP7.9K$1.4MNew
Odyssean, LLC7.84K$1.4MNew
Jump Financial, LLC7.84K$1.39M$374.6KCut−$290.9K
DE BURLO GROUP INC7.8K$1.39M$373KAdded$353.5K
VICTORY CAPITAL MANAGEMENT INC7.71K$1.37M$368.5KAdded$91.8K
Illinois Municipal Retirement Fund7.63K$1.36M$364.6KCut−$120.9K
Pathstone Holdings, LLC7.39K$1.31M$339.8KAdded$389.4K
Focus Partners Wealth7.25K$1.29M$261.7KAdded$577.1K
Connor, Clark & Lunn Investment Management Ltd.7.2K$1.28M$77KAdded$1.07M
STATE OF WISCONSIN INVESTMENT BOARD7.19K$1.28M$343.7KCut−$1.26M
Pictet Asset Management Holding SA7.02K$1.25M$312.7KAdded$398.1K
SummitTX Capital, L.P.7K$1.25M$76.6KAdded$1.04M
Headlands Technologies LLC6.6K$1.17M$112.4KAdded$868.3K
NAVELLIER & ASSOCIATES INC6.31K$1.12M$301.7KAdded$301.7K
CAPTRUST FINANCIAL ADVISORS6.11K$1.09M$184.2KAdded$585.1K
Merit Financial Group, LLC6.1K$1.08M$142.5KAdded$696.8K
Versor Investments LP6.06K$1.08M$170.4KAdded$614K
TEACHER RETIREMENT SYSTEM OF TEXAS5.92K$1.05MNew
Universal- Beteiligungs- und Servicegesellschaft mbH5.7K$1.01M$272.3KAdded$257.1K
BANK OF MONTREAL /CAN/5.63K$1M$237.9KAdded$354.1K
Wilmington Savings Fund Society, FSB5.37K$955.2K$256.7KCut−$88.4K
B.O.S.S. Retirement Advisors, LLC5.34K$949.3K$255.2KAdded$255.2K
PNC Financial Services Group, Inc.5.11K$908.4K$244.2KCut−$39.4K
HighTower Advisors, LLC5.02K$893.6K$179.1KAdded$406.3K
Fieldview Capital Management, LLC4.78K$850.9KNew
PRELUDE CAPITAL MANAGEMENT, LLC4.73K$841.7KNew
COMMERCE BANK4.73K$841.5K$226.2KCut−$1.48M
DIVERSIFIED TRUST CO4.68K$833.3KNew
WOLVERINE ASSET MANAGEMENT LLC4.55K$809.1KNew
MIRABELLA FINANCIAL SERVICES LLP4.46K$792.9K$74.2KAdded$591.2K
FRANKLIN RESOURCES INC4.44K$789K$209.6KAdded$218.8K
VOYA INVESTMENT MANAGEMENT LLC4.4K$782.5K$210.3KAdded$208.5K
Russell Investments Group, Ltd.4.36K$776K$208.6KAdded$173.5K
Private Advisor Group, LLC4.21K$749K$201.3KAdded$199.5K
EVERGREEN CAPITAL MANAGEMENT LLC4.15K$738KNew
New Age Alpha Advisors, LLC4.13K$735.5K$197.7KAdded$184.3K
QUADRANT CAPITAL GROUP LLC4.12K$733.2K$179.1KAdded$246K
Neo Ivy Capital Management4.04K$719.5KNew
US BANCORP \DE\3.93K$699.6K$180KAdded$210K
ProShare Advisors LLC3.92K$696.7K$87.5KAdded$458.7K
Eukles Asset Management3.72K$662K$177.9KAdded$96.3K
COLDSTREAM CAPITAL MANAGEMENT INC3.68K$655.1K$141.7KAdded$269.7K
VERUS CAPITAL PARTNERS, LLC3.65K$649.4K$174.6KAdded$174.6K
Mitsubishi UFJ Asset Management Co., Ltd.3.56K$632.9K$176.7KAdded$186.7K
Curi Capital, LLC3.54K$630K$150.3KAdded$221.2K
M&T Bank Corp3.52K$625.4K$159.4KAdded$193.5K
OXFORD FINANCIAL GROUP, LTD. LLC3.43K$610.1K$164KAdded$164K
SECURIAN ASSET MANAGEMENT, INC3.33K$592.8K$159.4KAdded$159.4K
Focus Partners Advisor Solutions, LLC3.3K$586.2KNew
Canvas Wealth Advisors, LLC3.19K$567.6KNew
Diametric Capital, LP3.1K$551.4KNew
Integrated Wealth Concepts LLC3.08K$547.3KNew
FEDERATED HERMES, INC.2.92K$519.6K$139.7KAdded$42K
Swiss Life Asset Management Ltd2.81K$500.2K$103.9KAdded$217.6K
Machina Capital S.A.S.2.76K$491.1KNew
ROYAL BANK OF CANADA2.75K$489K$131.8KCut−$985K
Federation des caisses Desjardins du Quebec2.74K$487.2K$131KAdded$11.6K
180 WEALTH ADVISORS, LLC2.73K$485.2K$127.3KAdded$139K
HB Wealth Management, LLC2.7K$481K$111.7KAdded$177K
O'SHAUGHNESSY ASSET MANAGEMENT, LLC2.69K$478.6K$84.2KAdded$249.5K
Blueshift Asset Management, LLC2.67K$474K$94KAdded$218.3K
BUCKHEAD CAPITAL MANAGEMENT LLC2.65K$471.4K$126.7KAdded$126.7K
Crossmark Global Holdings, Inc.2.65K$470.8K$126.2KAdded$127.5K
Allworth Financial LP2.59K$461.3K$81KAdded$240.9K
Summit Trail Advisors, LLC2.55K$453.7K$122KCut−$1.07M
JONES FINANCIAL COMPANIES LLLP2.54K$450.7K$14.4KAdded$411.1K
NorthCrest Asset Manangement, LLC2.52K$449.3K$112.2KAdded$29.5K

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.