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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, Q1 2023

Institutional positions in Masimo Corp as of Mar 31, 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
428
+31 vs. Q4 2022
Shares held
45.0M
+592.5K (+1.3%) vs. Q4 2022
Total value
$8.30B
+$1.73B (+26.4%) vs. Q4 2022
New holders
68
134 more added
Sold out
37
143 more reduced

8 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2023: 428 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 heldQ1 2023: $8.30B
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, Q1 2023

Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q4 2022.

Institutions holding MASI in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Centiva Capital, LP1,628$300.4K0.02%+1,628New
Quantamental Technologies LLC1,612$297.5K0.16%+1,612New
Mackenzie Financial Corp1,600$295.3K0.00%−754−32.0%Reduced
Cetera Advisors LLC1,591$293.6K0.00%+1,591New
Jefferies Financial Group Inc.1,589$293.2K0.01%+1,589New
Jump Financial, LLC1,547$285.5K0.01%+1,547New
LRT Capital Management, LLC1,452$268.0K0.20%−7,182−83.2%Reduced
Berkshire Asset Management LLC1,450$267.6K0.02%+1,450New
Raymond James Financial Services Advisors, Inc.1,432$264.3K0.00%+78+5.8%Added
PVG Asset Management Corp1,425$263.0K0.84%+1,425New
CIBC Asset Management Inc1,383$255.2K0.00%+19+1.4%Added
Pacer Advisors, Inc.1,374$253.6K0.00%−7,892−85.2%Reduced
Cubist Systematic Strategies, LLC1,318$243.2K0.00%−18,844−93.5%Reduced
CWM, LLC1,308$241.0K0.00%+32+2.5%Added
Tokio Marine Asset Management Co Ltd1,302$240.3K0.02%+1,302New
Wesleyan Assurance Society1,300$240.0K0.03%00.0%Unchanged
Hamilton Wealth, LLC1,234$227.7K0.08%+1,234New
Quadrant Capital Group LLC1,208$222.9K0.02%+150+14.2%Added
Synergy Financial Group, LTD1,196$220.7K0.36%+1,196New
Mutual Advisors, LLC1,177$217.2K0.01%+1,177New
Matisse Capital1,166$215.2K0.14%+1,166New
Accredited Investors Inc.1,149$212.0K0.02%+1,149New
Whittier Trust Co1,134$209.3K0.00%00.0%Unchanged
B. Metzler seel. Sohn & Co. AG1,121$206.9K0.00%+1,121New
HBK Sorce Advisory LLC1,113$205.4K0.01%−1,117−50.1%Reduced
Intrust Bank NA1,102$203.4K0.03%+1,102New
Alberta Investment Management Corp1,100$203.0K0.00%+1,100New
United Community Bank1,057$195.1K0.18%00.0%Unchanged
Signaturefd, LLC1,029$189.9K0.01%−8−0.8%Reduced
Harvest Fund Management Co., Ltd1,003$185.0K0.04%+977+3,757.7%Added
Banque Cantonale Vaudoise1,000$184.0K0.01%00.0%Unchanged
Harbor Investment Advisory, LLC970$179.0K0.03%−25−2.5%Reduced
VitalStone Financial, LLC597$175.0K0.16%00.0%Unchanged
Lazard Asset Management LLC911$168.0K0.00%−13−1.4%Reduced
Ossiam784$144.7K0.00%+341+77.0%Added
Advisory Services Network, LLC765$141.2K0.00%+14+1.9%Added
Wahed Invest LLC611$112.8K0.05%+7+1.2%Added
Ostrum Asset Management602$111.1K0.01%+602New
Arcadia Investment Management Corp529$97.6K0.02%−35−6.2%Reduced
Leonteq Securities AG520$96.0K0.01%−528−50.4%Reduced
Dark Forest Capital Management LP510$94.1K0.02%+510New
HHM Wealth Advisors, LLC500$92.3K0.02%00.0%Unchanged
Benjamin F. Edwards & Company, Inc.500$92.0K0.00%00.0%Unchanged
JJJ Advisors Inc.448$85.9K0.02%−29−6.1%Reduced
Itau Unibanco Holding S.A.441$81.4K0.00%−2−0.5%Reduced
Ci Investments Inc.431$80.0K0.00%+358+490.4%Added
Castleview Partners, LLC376$69.4K0.06%+376New
Parallel Advisors, LLC359$66.3K0.00%+188+109.9%Added
Belpointe Asset Management LLC339$62.6K0.00%+81+31.4%Added
Spire Wealth Management337$62.2K0.00%+206+157.3%Added
Trivant Custom Portfolio Group, LLC300$55.4K0.04%+300New
State of Wyoming265$48.9K0.02%+18+7.3%Added
Fifth Third Bancorp252$46.5K0.00%+2+0.8%Added
Lindbrook Capital, LLC212$39.1K0.00%00.0%Unchanged
Northwestern Mutual Wealth Management Co205$37.8K0.00%−26−11.3%Reduced
Caisse de Depot Et Placement du Quebec200$36.9K0.00%+200New
Harbour Investments, Inc.183$33.8K0.00%00.0%Unchanged
Allworth Financial LP164$30.3K0.00%00.0%Unchanged
Acadian Asset Management LLC146$26.0K0.00%−59,072−99.8%Reduced
Federation des caisses Desjardins du Quebec130$24.0K0.00%−733−84.9%Reduced
Riverview Trust Co123$22.7K0.02%00.0%Unchanged
Covestor Ltd120$22.0K0.02%−67−35.8%Reduced
BI Asset Management Fondsmaeglerselskab A/S119$22.0K0.00%+46+63.0%Added
Clearstead Advisors, LLC115$21.2K0.00%+100+666.7%Added
Nelson, Van Denburg & Campbell Wealth Management Group, LLC115$21.2K0.00%+115New
Massmutual Trust Co FSB113$20.9K0.00%+71+169.0%Added
Machina Capital S.A.S.101$18.6K0.02%+101New
West Oak Capital, LLC100$18.5K0.01%00.0%Unchanged
Cary Street Partner Investment Advisory LLC100$18.5K0.00%00.0%Unchanged
Center for Financial Planning, Inc.100$18.5K0.00%00.0%Unchanged
Sageworth Trust Co of South Dakota90$16.6K0.04%00.0%Unchanged
Sunbelt Securities, Inc.74$13.2K0.00%+74New
Raleigh Capital Management Inc.69$12.7K0.01%+69New
GWM Advisors LLC69$12.7K0.00%−222−76.3%Reduced
Smithfield Trust Co65$12.0K0.00%00.0%Unchanged
Steward Partners Investment Advisory, LLC55$10.2K0.00%00.0%Unchanged
Colonial Trust Advisors50$9.23K0.00%00.0%Unchanged
Investors Research Corp50$9.23K0.00%00.0%Unchanged
Global Wealth Strategies & Associates50$9.23K0.00%00.0%Unchanged
Gradient Investments LLC50$9.23K0.00%+50New
GPS Wealth Strategies Group, LLC50$9.23K0.00%+50New
Clean Yield Group49$9.04K0.00%00.0%Unchanged
TCI Wealth Advisors, Inc.47$8.67K0.00%00.0%Unchanged
Baker Avenue Asset Management, LP41$7.57K0.00%00.0%Unchanged
New Hampshire Trust41$7.57K0.00%00.0%Unchanged
Farther Finance Advisors, LLC39$7.20K0.00%+31+387.5%Added
Hantz Financial Services, Inc.39$7.00K0.00%00.0%Unchanged
Capital Advisors, Ltd. LLC36$7.00K0.00%00.0%Unchanged
RE Dickinson Investment Advisors, LLC32$6.00K0.00%00.0%Unchanged
Ronald Blue Trust, Inc.41$6.00K0.00%+4+10.8%Added
Bokf, NA32$5.91K0.00%+32New
North Star Investment Management Corp.30$5.54K0.00%00.0%Unchanged
Ameritas Advisory Services, LLC27$5.21K0.00%+27New
Earnest Partners LLC27$4.98K0.00%00.0%Unchanged
Hallmark Capital Management Inc26$4.80K0.00%00.0%Unchanged
BDO Wealth Advisors, LLC25$4.61K0.00%+25New
Parkside Financial Bank & Trust24$4.43K0.00%00.0%Unchanged
TD Waterhouse Canada Inc.20$4.20K0.00%00.0%Unchanged
Bell Investment Advisors, Inc22$4.06K0.00%−10−31.3%Reduced
Values First Advisors, Inc.21$3.88K0.00%+21New