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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.

13F holders, Q2 2023

Institutional positions in Masimo Corp as of Jun 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
415
−13 vs. Q1 2023
Shares held
46.0M
+958.6K (+2.1%) vs. Q1 2023
Total value
$7.56B
−$738.3M (−8.9%) vs. Q1 2023
New holders
45
114 more added
Sold out
58
171 more reduced

Compare with Q1 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MASI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2023: 415 institutions
Q1 2021: 481 institutionsQ2 2021: 459 institutionsQ3 2021: 475 institutionsQ4 2021: 520 institutionsQ1 2022: 457 institutionsQ2 2022: 417 institutionsQ3 2022: 418 institutionsQ4 2022: 405 institutionsQ1 2023: 428 institutionsQ2 2023: 415 institutionsQ3 2023: 357 institutionsQ4 2023: 342 institutionsQ1 2024: 339 institutionsQ2 2024: 352 institutionsQ3 2024: 362 institutionsQ4 2024: 366 institutionsQ1 2025: 393 institutionsQ2 2025: 379 institutionsQ3 2025: 358 institutionsQ4 2025: 392 institutionsQ1 2026: 451 institutionsQ2 2026: 2 institutions
Value heldQ2 2023: $7.56B
Q1 2021: $10.3BQ2 2021: $11.1BQ3 2021: $12.5BQ4 2021: $13.6BQ1 2022: $6.61BQ2 2022: $5.81BQ3 2022: $6.54BQ4 2022: $6.58BQ1 2023: $8.30BQ2 2023: $7.56BQ3 2023: $4.18BQ4 2023: $5.91BQ1 2024: $7.59BQ2 2024: $6.24BQ3 2024: $6.72BQ4 2024: $8.50BQ1 2025: $9.02BQ2 2025: $9.68BQ3 2025: $8.29BQ4 2025: $7.20BQ1 2026: $9.69BQ2 2026: $16.2K
Institutions holding MASI and their total value by quarter
QuarterHoldersValue
Q2 20262$16.2K
Q1 2026451$9.69B
Q4 2025392$7.20B
Q3 2025358$8.29B
Q2 2025379$9.68B
Q1 2025393$9.02B
Q4 2024366$8.50B
Q3 2024362$6.72B
Q2 2024352$6.24B
Q1 2024339$7.59B
Q4 2023342$5.91B
Q3 2023357$4.18B
Q2 2023415$7.56B
Q1 2023428$8.30B
Q4 2022405$6.58B
Q3 2022418$6.54B
Q2 2022417$5.81B
Q1 2022457$6.61B
Q4 2021520$13.6B
Q3 2021475$12.5B
Q2 2021459$11.1B
Q1 2021481$10.3B

Institutions, Q2 2023

Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q1 2023.

Institutions holding MASI in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Transamerica Financial Advisors, Inc.3$1.00K0.00%00.0%Unchanged
Bollard Group LLC5$1.00K0.00%+5New
Global Retirement Partners, LLC6$9870.00%−9−60.0%Reduced
Versant Capital Management, Inc6$9870.00%+6New
SJS Investment Consulting Inc.5$8230.00%−1−16.7%Reduced
Disciplined Investments, LLC5$8230.00%−1−16.7%Reduced
EverSource Wealth Advisors, LLC3$4940.00%00.0%Unchanged
New Millennium Group LLC3$4940.00%00.0%Unchanged
Fairfield, Bush & Co.3$4940.00%+3New
Fiduciary Alliance LLC3$4940.00%+3New
Sofos Investments, Inc.165$4510.00%+165New
Financial Synergies Wealth Advisors, Inc.2$3300.00%+1+100.0%Added
True Wealth Design, LLC1$1650.00%00.0%Unchanged
VisionPoint Advisory Group, LLC1$1650.00%+1New
Financial Management Professionals, Inc.2$00.00%00.0%Unchanged
1832 Asset Management L.P.0$00.00%−50,000−100.0%Sold out
HRT Financial LP0$00.00%−48,289−100.0%Sold out
SG Capital Management LLC0$00.00%−40,102−100.0%Sold out
Castleark Management LLC0$00.00%−35,240−100.0%Sold out
Cloverfields Capital Group, LP0$00.00%−18,858−100.0%Sold out
Banque Pictet & Cie SA0$00.00%−15,252−100.0%Sold out
Inceptionr LLC0$00.00%−8,864−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−7,907−100.0%Sold out
Unigestion Holding SA0$00.00%−6,966−100.0%Sold out
Van Eck Associates Corp0$00.00%−6,059−100.0%Sold out
Virginia Retirement Systems Et Al0$00.00%−5,928−100.0%Sold out
Ergoteles LLC0$00.00%−5,749−100.0%Sold out
Knowledge Leaders Capital, LLC0$00.00%−5,632−100.0%Sold out
Quadrature Capital Ltd0$00.00%−4,897−100.0%Sold out
Wellington Management Group LLP0$00.00%−4,345−100.0%Sold out
Westpac Banking Corp0$00.00%−3,952−100.0%Sold out
Assenagon Asset Management S.A.0$00.00%−3,924−100.0%Sold out
Schonfeld Strategic Advisors LLC0$00.00%−3,772−100.0%Sold out
Lombard Odier Asset Management (Europe) Ltd0$00.00%−3,100−100.0%Sold out
Edgestream Partners, L.P.0$00.00%−2,782−100.0%Sold out
Duality Advisers, LP0$00.00%−2,701−100.0%Sold out
National Asset Management, Inc.0$00.00%−2,594−100.0%Sold out
Candriam Luxembourg S.C.A.0$00.00%−2,813−100.0%Sold out
Intech Investment Management LLC0$00.00%−2,459−100.0%Sold out
Holocene Advisors, LP0$00.00%−2,150−100.0%Sold out
Oak Thistle LLC0$00.00%−1,635−100.0%Sold out
Quantamental Technologies LLC0$00.00%−1,612−100.0%Sold out
Cetera Advisors LLC0$00.00%−1,591−100.0%Sold out
Jefferies Financial Group Inc.0$00.00%−1,589−100.0%Sold out
Jump Financial, LLC0$00.00%−1,547−100.0%Sold out
LRT Capital Management, LLC0$00.00%−1,452−100.0%Sold out
Raymond James Financial Services Advisors, Inc.0$00.00%−1,432−100.0%Sold out
PVG Asset Management Corp0$00.00%−1,425−100.0%Sold out
Hamilton Wealth, LLC0$00.00%−1,234−100.0%Sold out
Synergy Financial Group, LTD0$00.00%−1,196−100.0%Sold out
Mutual Advisors, LLC0$00.00%−1,177−100.0%Sold out
Matisse Capital0$00.00%−1,166−100.0%Sold out
B. Metzler seel. Sohn & Co. AG0$00.00%−1,121−100.0%Sold out
HBK Sorce Advisory LLC0$00.00%−1,113−100.0%Sold out
Intrust Bank NA0$00.00%−1,102−100.0%Sold out
Alberta Investment Management Corp0$00.00%−1,100−100.0%Sold out
Advisory Services Network, LLC0$00.00%−765−100.0%Sold out
Dark Forest Capital Management LP0$00.00%−510−100.0%Sold out
Castleview Partners, LLC0$00.00%−376−100.0%Sold out
Belpointe Asset Management LLC0$00.00%−339−100.0%Sold out
Caisse de Depot Et Placement du Quebec0$00.00%−200−100.0%Sold out
Acadian Asset Management LLC0$00.00%−146−100.0%Sold out
Machina Capital S.A.S.0$00.00%−101−100.0%Sold out
Sageworth Trust Co of South Dakota0$00.00%−90−100.0%Sold out
TCI Wealth Advisors, Inc.0$00.00%−47−100.0%Sold out
New Hampshire Trust0$00.00%−41−100.0%Sold out
Bokf, NA0$00.00%−32−100.0%Sold out
North Star Investment Management Corp.0$00.00%−30−100.0%Sold out
Ameritas Advisory Services, LLC0$00.00%−27−100.0%Sold out
BDO Wealth Advisors, LLC0$00.00%−25−100.0%Sold out
Values First Advisors, Inc.0$00.00%−21−100.0%Sold out
Robbins Farley LLC0$00.00%−20−100.0%Sold out
Schubert & Co0$00.00%−16−100.0%Sold out