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Masimo Corp

MASIDelisted Jun 10, 2026
Industry
Electromedical & Electrotherapeutic Apparatus
SEC CIK
0000937556

Masimo Corp was delisted on Jun 10, 2026; its insiders filed their last Form 4 on Jun 12, 2026; 451 institutions reported holding it in 13F filings for Q1 2026, worth $9.69B in total; Soros Fund Management was the only superinvestor holding it.

Q2 2025 vs. Q1 2025

How the institutions holding Masimo Corp changed between Q1 2025 and Q2 2025.

All holders in Q2 2025All holders in Q1 2025

13F holders of MASI: Q1 2025 compared with Q2 2025
MeasureQ1 2025Of which not filed for Q2 2025Q2 2025Change
Holders3933379−11
Shares54.2M10.0K57.5M+3.35M (+6.2%)
Value$9.02B$1.67M$9.68B+$653.6M (+7.2%)

3 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (46)

Institutions that held Masimo Corp at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to MASI in Q2 2025
InstitutionSharesValue% of portfolio
Viking Global Investors LPSuperinvestorViking Global Investors767,426$129.1M0.37%
Grantham, Mayo, Van Otterloo & Co. LLC240,563$40.5M0.12%
Hawk Ridge Capital Management LP148,685$25.0M1.04%
Falcon Edge Capital, LP102,068$17.2M1.85%
PFM Health Sciences, LP94,451$15.9M1.38%
Swedbank AB73,800$12.4M0.01%
BNP PARIBAS ASSET MANAGEMENT Holding S.A.65,821$11.1M0.03%
Cinctive Capital Management LP46,787$7.87M0.44%
Natixis45,648$7.68M0.04%
Wilson Asset Management (International) Pty Ltd27,234$4.58M1.13%
Harbor Capital Advisors, Inc.26,412$4.44M0.19%
XTX Topco Ltd10,837$1.82M0.08%
Graham Capital Management, L.P.10,480$1.76M0.05%
Summit Trail Advisors, LLC7,160$1.20M0.02%
Bayforest Capital Ltd6,705$1.13M0.49%
Winton Group Ltd5,617$944.9K0.05%
Bryce Point Capital, LLC4,885$821.8K0.70%
Wetherby Asset Management Inc4,557$766.6K0.03%
Inscription Capital, LLC2,274$382.5K0.06%
Syon Capital LLC2,197$369.6K0.02%
Occudo Quantitative Strategies LP2,115$355.8K0.04%
Qsemble Capital Management, LP1,525$256.5K0.02%
Mercer Global Advisors Inc1,472$247.7K0.00%
Andina Capital Management, LLC1,420$238.9K0.17%
Kera Capital Partners, Inc.1,380$232.1K0.05%
Swiss Life Asset Management Ltd1,215$204.4K0.00%
Knollwood Investment Advisory, LLC1,200$201.9K0.02%
Quantbot Technologies LP509$85.6K0.00%
Danske Bank A/S400$67.3K0.00%
Clearstead Advisors, LLC397$66.8K0.00%
Hilltop National Bank218$36.7K0.01%
Boreal Capital Management LLC75$12.6K0.01%
GeoWealth Management, LLC50$8.41K0.00%
Salomon & Ludwin, LLC40$6.85K0.00%
Essential Partners LLC29$4.88K0.00%
Brown Brothers Harriman & Co17$2.86K0.00%
Whipplewood Advisors, LLC14$2.35K0.00%
Capital A Wealth Management, LLC20$2.34K0.03%
Fortitude Family Office, LLC11$1.85K0.00%
Cromwell Holdings LLC4$6730.00%
Rialto Wealth Management, LLC2$3370.00%
AdvisorNet Financial, Inc2$3360.00%
Twin Peaks Wealth Advisors, LLC2$3000.00%
DecisionPoint Financial, LLC1$1700.00%
Financial Management Professionals, Inc.1$1680.00%
Tortoise Investment Management, LLC1$1680.00%

Sold out (57)

Institutions that held Masimo Corp at the end of Q1 2025 and filed for Q2 2025 without it.

Institutions that sold out of MASI in Q2 2025
InstitutionShares, Q1 2025Value, Q1 2025
Artisan Partners Limited Partnership299,023$49.8M
ExodusPoint Capital Management, LP59,792$9.96M
Corebridge Financial, Inc.49,327$8.22M
Integral Health Asset Management, LLC45,000$7.50M
Lisanti Capital Growth, LLC30,485$5.08M
Redmile Group, LLC26,062$4.34M
EAM Investors, LLC22,952$3.82M
Aquatic Capital Management LLC17,388$2.90M
Aster Capital Management (DIFC) Ltd11,912$2.25M
Neo Ivy Capital Management10,248$1.71M
Virginia Retirement Systems Et Al10,197$1.70M
Fieldview Capital Management, LLC8,675$1.45M
Centiva Capital, LP7,530$1.25M
Versor Investments LP6,978$1.16M
Sigma Planning Corp6,365$1.06M
Polar Capital Holdings Plc6,023$1.00M
Bayesian Capital Management, LP6,000$999.6K
Legato Capital Management LLC5,245$873.8K
Point72 Hong Kong Ltd4,852$808.4K
Quantitative Investment Management, LLC4,462$743.0K
Pinebridge Investments, L.P.3,954$658.7K
SummitTX Capital, L.P.3,773$628.6K
Inceptionr LLC3,583$596.9K
Lido Advisors, LLC3,127$521.0K
Kestra Private Wealth Services, LLC2,892$481.8K
United Services Automobile Association2,912$476.3K
Mariner, LLC2,405$400.3K
Allianz Asset Management GmbH1,912$318.5K
SeaCrest Wealth Management, LLC1,840$306.5K
Aigen Investment Management, LP1,627$271.1K
Silver Oak Securities, Inc1,638$267.9K
Cetera Investment Advisers1,600$266.6K
PharVision Advisers, LLC1,410$234.9K
Dynamic Technology Lab Private Ltd1,320$220.0K
Jain Global LLC1,274$212.2K
Barrett & Company, Inc.567$94.4K
Point72 Asia (Singapore) Pte. Ltd.469$78.1K
Quarry LP449$74.8K
Anderson Financial Strategies, LLC295$49.1K
Washington Trust Co184$30.7K
Twin Tree Management, LP175$29.2K
Riverview Trust Co169$28.2K
Acadian Asset Management LLC143$23.0K
Sound Income Strategies, LLC85$14.2K
TD Waterhouse Canada Inc.50$8.34K
Meeder Asset Management Inc14$2.33K
WFA Asset Management Corp12$1.76K
Mather Group, LLC.6$1.00K
Private Wealth Asset Management, LLC6$1.00K
Quent Capital, LLC6$1.00K
Global Financial Private Client, LLC5$833
CoreCap Advisors, LLC4$666
Greenline Partners, LLC3$500
State of Wyoming3$500
Atlantic Trust, LLC1$167
American Capital Advisory, LLC1$167
Avion Wealth2$0

Not filed for Q2 2025 yet (3)

Institutions that held Masimo Corp at the end of Q1 2025 and haven't filed a 13F for Q2 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding MASI in Q1 2025 that haven't filed for Q2 2025
InstitutionShares, Q1 2025Value, Q1 2025
CAPROCK Group, Inc.4,913$818.5K
Orion Portfolio Solutions, LLC4,767$794.2K
Lindbrook Capital, LLC346$57.6K