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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, Q4 2022

Institutional positions in Masimo Corp as of Dec 31, 2022. 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
405
−8 vs. Q3 2022
Shares held
44.4M
−1.85M (−4.0%) vs. Q3 2022
Total value
$6.58B
+$40.0M (+0.6%) vs. Q3 2022
New holders
53
116 more added
Sold out
61
172 more reduced

5 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2022: 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 holdersQ4 2022: 405 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 heldQ4 2022: $6.58B
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, Q4 2022

Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q3 2022.

Institutions holding MASI in Q4 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Assetmark, Inc7,117$1.05M0.00%+87+1.2%Added
Brinker Capital Investments, LLC7,058$1.04M0.02%−385−5.2%Reduced
Janney Montgomery Scott LLC6,888$1.02M0.00%−54,320−88.7%Reduced
State of Alaska, Department of Revenue6,768$1.00M0.01%+60+0.9%Added
Vontobel Holding Ltd.6,766$981.1K0.01%+2,896+74.8%Added
Aviva PLC6,545$968.3K0.00%−42,038−86.5%Reduced
Guggenheim Capital LLC6,387$945.0K0.01%−2,591−28.9%Reduced
Linden Thomas Advisory Services, LLC6,043$894.1K0.25%+6,043New
Holocene Advisors, LP6,025$891.4K0.01%−10,005−62.4%Reduced
The PNC Financial Services Group, Inc.6,010$889.2K0.00%−870−12.6%Reduced
CenterBook Partners LP5,926$876.8K0.14%−1,117−15.9%Reduced
North Star Asset Management Inc5,885$870.7K0.05%−2,022−25.6%Reduced
Van Eck Associates Corp5,819$861.0K0.00%−196−3.3%Reduced
Panagora Asset Management Inc5,762$852.5K0.01%+3,392+143.1%Added
Knowledge Leaders Capital, LLC5,727$847.3K1.12%+231+4.2%Added
Nissay Asset Management Corp5,545$820.4K0.01%−508−8.4%Reduced
Janus Henderson Group PLC5,328$788.5K0.00%+5,328New
Storebrand Asset Management AS5,178$766.1K0.00%−1,065−17.1%Reduced
American Century Companies Inc4,939$730.7K0.00%+1,240+33.5%Added
Gotham Asset Management, LLC4,901$725.1K0.02%+586+13.6%Added
Standard Life Aberdeen plc4,568$675.8K0.00%+235+5.4%Added
Northwestern Mutual Investment Management Company, LLC4,475$662.1K0.02%−2,505−35.9%Reduced
Securian Asset Management, Inc4,413$652.9K0.02%00.0%Unchanged
Franklin Resources Inc4,194$620.5K0.00%−1,804−30.1%Reduced
Macquarie Group Ltd4,126$610.4K0.00%−426−9.4%Reduced
MML Investors Services, LLC4,110$608.0K0.00%−653−13.7%Reduced
Schonfeld Strategic Advisors LLC4,090$605.1K0.01%−2,729−40.0%Reduced
Crossmark Global Holdings, Inc.4,005$592.0K0.01%−639−13.8%Reduced
Cipher Capital LP3,999$591.7K0.11%+306+8.3%Added
Raymond James Trust N.A.3,978$589.0K0.02%+370+10.3%Added
Westpac Banking Corp3,952$584.7K0.01%00.0%Unchanged
Lombard Odier Asset Management (Europe) Ltd3,900$577.0K0.02%+1,450+59.2%Added
Nordea Investment Management AB3,886$565.0K0.00%+558+16.8%Added
Man Group plc3,795$561.5K0.00%+3,795New
Maryland State Retirement & Pension System3,736$552.7K0.02%+3,736New
Terry L. Blaker3,718$550.1K0.05%−2,931−44.1%Reduced
ProShare Advisors LLC3,710$548.9K0.00%+301+8.8%Added
Verus Capital Partners, LLC3,651$540.2K0.10%00.0%Unchanged
Institutional & Family Asset Management, LLC3,650$540.0K0.09%00.0%Unchanged
Mitsubishi UFJ Asset Management (UK) Ltd.3,600$533.0K0.37%+3,000+500.0%Added
Pathstone Family Office, LLC5,146$529.8K0.01%+199+4.0%Added
Oxford Financial Group Ltd3,430$507.5K0.06%−212−5.8%Reduced
Edgestream Partners, L.P.3,407$504.1K0.06%+3,407New
Susquehanna International Group, LLP3,394$502.1K0.00%−6,764−66.6%Reduced
Candriam Luxembourg S.C.A.3,366$498.0K0.00%−973−22.4%Reduced
PEAK6 Investments LLC3,365$497.9K0.03%+1,443+75.1%Added
Cambridge Investment Research Advisors, Inc.3,209$475.0K0.00%−303−8.6%Reduced
Arkadios Wealth Advisors3,133$463.5K0.06%−35−1.1%Reduced
Sumitomo Mitsui DS Asset Management Company, Ltd3,113$460.6K0.01%00.0%Unchanged
Allstate Corp3,086$456.6K0.01%−1,200−28.0%Reduced
Allstate Investment Management Co3,086$456.6K0.01%+3,086New
Winton Group Ltd3,061$452.9K0.03%−1,456−32.2%Reduced
KBC Group NV3,034$449.0K0.00%+2,121+232.3%Added
Prudential Financial Inc3,011$445.5K0.00%−1,170−28.0%Reduced
DAFNA Capital Management LLC3,000$443.9K0.13%00.0%Unchanged
Y-Intercept (Hong Kong) Ltd2,960$437.9K0.06%+2,960New
Vestcor Inc2,944$436.0K0.02%+1,702+137.0%Added
Baird Financial Group, Inc.2,843$420.0K0.00%+209+7.9%Added
Daiwa Securities Group Inc.2,823$418.0K0.00%00.0%Unchanged
Sigma Planning Corp2,802$414.6K0.01%+2+0.1%Added
Prudential PLC2,780$411.3K0.01%+2,780New
Quantinno Capital Management LP2,719$402.0K0.03%+74+2.8%Added
Wolverine Trading, LLC2,717$402.0K0.01%+2,717New
Buckhead Capital Management LLC2,545$376.5K0.09%00.0%Unchanged
KCM Investment Advisors LLC2,515$372.0K0.02%00.0%Unchanged
Shelton Capital Management2,474$366.0K0.04%−210−7.8%Reduced
Coldstream Capital Management Inc2,455$363.2K0.01%+2,455New
Commonwealth Equity Services, LLC2,414$357.0K0.00%+365+17.8%Added
Mackenzie Financial Corp2,354$348.3K0.00%+2,354New
Red Spruce Capital, LLC2,263$334.8K0.21%00.0%Unchanged
HBK Sorce Advisory LLC2,230$330.0K0.01%+2,230New
Diversified Trust Co2,222$329.0K0.01%−4,047−64.6%Reduced
Washington Capital Management Inc2,200$325.5K0.30%+2,200New
BancorpSouth Bank2,172$321.3K0.03%00.0%Unchanged
Profund Advisors LLC2,160$319.6K0.02%+87+4.2%Added
HighTower Advisors, LLC2,066$306.0K0.00%−393−16.0%Reduced
Asahi Life Asset Management Co., Ltd.2,040$301.8K0.10%+2,040New
Silvercrest Asset Management Group LLC2,010$297.4K0.00%−311−13.4%Reduced
Stifel Financial Corp2,008$297.1K0.00%−1,020−33.7%Reduced
Yorktown Management & Research Co Inc1,950$288.5K0.35%00.0%Unchanged
Commerce Bank1,938$286.7K0.00%−32−1.6%Reduced
Capital Impact Advisors, LLC1,871$276.8K0.27%+154+9.0%Added
Advisor Partners II, LLC1,806$267.2K0.02%−1,083−37.5%Reduced
Tower Research Capital LLC (TRC)1,782$264.0K0.01%+15+0.8%Added
M&T Bank Corp1,774$262.1K0.00%−63−3.4%Reduced
Janney Capital Management LLC1,772$262.0K0.02%−22−1.2%Reduced
AE Wealth Management LLC1,721$254.6K0.00%+128+8.0%Added
Barrett & Company, Inc.1,700$251.5K0.17%00.0%Unchanged
Seaport Global Advisors, LLC1,682$248.9K0.86%+1,682New
M&G Investment Management Ltd1,674$247.8K0.00%+22+1.3%Added
Qube Research & Technologies Ltd1,644$243.2K0.00%+1,644New
Pitcairn Co1,637$242.2K0.02%+13+0.8%Added
Captrust Financial Advisors1,583$234.2K0.00%−17−1.1%Reduced
CI Private Wealth, LLC1,523$225.3K0.00%+1,523New
Ethic Inc.1,396$206.5K0.01%−627−31.0%Reduced
SG Americas Securities, LLC1,365$202.0K0.00%+1,365New
CIBC Asset Management Inc1,364$201.8K0.00%−761−35.8%Reduced
Raymond James Financial Services Advisors, Inc.1,354$200.3K0.00%−881−39.4%Reduced
Wesleyan Assurance Society1,300$192.0K0.02%+500+62.5%Added
CWM, LLC1,276$189.0K0.00%−77−5.7%Reduced