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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, Q3 2024

Institutional positions in Masimo Corp as of Sep 30, 2024. 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
362
+13 vs. Q2 2024
Shares held
50.4M
+10.3M (+25.6%) vs. Q2 2024
Total value
$6.72B
+$1.66B (+32.8%) vs. Q2 2024
New holders
61
110 more added
Sold out
48
122 more reduced

3 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2024: 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 holdersQ3 2024: 362 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 heldQ3 2024: $6.72B
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, Q3 2024

Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q2 2024.

Institutions holding MASI in Q3 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Commerce Bank4,221$562.8K0.00%+33+0.8%Added
Private Advisor Group, LLC4,155$554.0K0.00%−185−4.3%Reduced
Truist Financial Corp3,895$519.3K0.00%−233−5.6%Reduced
ADAR1 Capital Management, LLC3,894$519.2K0.09%+3,856+10,147.4%Added
Y-Intercept (Hong Kong) Ltd3,893$519.1K0.03%+3,893New
CI Private Wealth, LLC3,886$518.1K0.00%−161−4.0%Reduced
The PNC Financial Services Group, Inc.3,845$512.7K0.00%−53−1.4%Reduced
Kovitz Investment Group Partners, LLC3,902$498.7K0.00%+3,902New
Janney Montgomery Scott LLC3,698$493.0K0.00%−807−17.9%Reduced
Verus Capital Partners, LLC3,651$486.8K0.05%00.0%Unchanged
Oppenheimer Asset Management Inc.3,584$477.9K0.01%+3,584New
LPL Financial LLC3,507$467.5K0.00%+18+0.5%Added
Oxford Financial Group Ltd3,446$459.5K0.03%00.0%Unchanged
Securian Asset Management, Inc3,433$457.7K0.01%−123−3.5%Reduced
Crossmark Global Holdings, Inc.3,248$433.0K0.01%+409+14.4%Added
Vontobel Holding Ltd.3,186$424.8K0.00%+6+0.2%Added
Mariner, LLC3,138$418.3K0.00%−3,734−54.3%Reduced
M&G Plc3,053$406.0K0.00%−187−5.8%Reduced
Malaga Cove Capital, LLC3,005$400.7K0.16%+3,005New
DAFNA Capital Management LLC3,000$400.0K0.09%00.0%Unchanged
CWM Advisors, LLC2,964$395.2K0.04%+2,964New
180 Wealth Advisors, LLC2,782$370.9K0.06%+61+2.2%Added
Sigma Planning Corp2,765$368.7K0.01%00.0%Unchanged
Buckhead Capital Management LLC2,650$353.3K0.11%00.0%Unchanged
North Star Asset Management Inc2,571$342.8K0.02%−840−24.6%Reduced
Wesleyan Assurance Society2,550$340.0K0.03%00.0%Unchanged
M&T Bank Corp2,536$338.1K0.00%+56+2.3%Added
Inceptionr LLC2,455$327.3K0.08%+2,455New
Maryland State Retirement & Pension System2,447$326.3K0.01%−1,289−34.5%Reduced
KCM Investment Advisors LLC2,415$322.0K0.01%00.0%Unchanged
Wealth Enhancement Advisory Services, LLC2,408$321.1K0.00%+50+2.1%Added
Allspring Global Investments Holdings, LLC2,394$319.2K0.00%+2,350+5,340.9%Added
Toroso Investments, LLC2,389$318.5K0.00%+2,389New
Utah Retirement Systems2,300$306.7K0.00%−4,821−67.7%Reduced
Coldstream Capital Management Inc2,281$304.6K0.01%−169−6.9%Reduced
Mission Wealth Management, LP2,205$294.0K0.01%+5+0.2%Added
Hardy Reed LLC2,172$289.7K0.03%00.0%Unchanged
BancorpSouth Bank2,172$289.6K0.02%00.0%Unchanged
Quest Partners LLC2,115$282.0K0.03%+2,090+8,360.0%Added
Quantinno Capital Management LP2,110$281.3K0.00%−1,788−45.9%Reduced
Empowered Funds, LLC2,095$279.3K0.00%+2,095New
MML Investors Services, LLC2,056$274.0K0.00%+96+4.9%Added
Vestmark Advisory Solutions, Inc.2,042$272.3K0.01%+2,042New
AE Wealth Management LLC1,980$264.0K0.00%+45+2.3%Added
Tudor Investment Corp Et Al1,965$262.0K0.00%−14,370−88.0%Reduced
Cerity Partners LLC1,953$260.4K0.00%+1,953New
ProShare Advisors LLC1,925$256.7K0.00%−178−8.5%Reduced
State of Wyoming1,914$255.2K0.04%+1,876+4,936.8%Added
Verition Fund Management LLC1,840$245.3K0.00%+1,840New
Franklin Resources Inc1,683$242.9K0.00%−227−11.9%Reduced
Kapitalo Investimentos Ltda1,815$242.0K0.06%+1,815New
SeaCrest Wealth Management, LLC1,790$238.7K0.03%00.0%Unchanged
Stifel Financial Corp1,716$228.8K0.00%+1,716New
Shelton Capital Management1,713$228.4K0.01%00.0%Unchanged
Perissos Private Wealth Management, LLC1,700$226.7K0.18%00.0%Unchanged
Northwestern Mutual Wealth Management Co1,660$221.3K0.00%+1,310+374.3%Added
Pitcairn Co1,635$218.0K0.01%−163−9.1%Reduced
Qsemble Capital Management, LP1,617$215.6K0.04%−1,154−41.6%Reduced
Cambridge Investment Research Advisors, Inc.1,542$206.0K0.00%+1,542New
CIBC Asset Management Inc1,544$205.9K0.00%+1,544New
Cresset Asset Management, LLC1,528$203.7K0.00%+1,528New
Quadrant Capital Group LLC1,376$183.5K0.01%−154−10.1%Reduced
KBC Group NV1,280$171.0K0.00%+189+17.3%Added
Assetmark, Inc1,183$157.7K0.00%+133+12.7%Added
Whittier Trust Co1,134$151.2K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)1,073$143.1K0.00%−13,695−92.7%Reduced
CWM, LLC1,070$143.0K0.00%−93−8.0%Reduced
Resona Asset Management Co.,Ltd.987$131.5K0.00%+146+17.4%Added
Harbor Investment Advisory, LLC970$129.3K0.01%00.0%Unchanged
United Community Bank956$127.5K0.05%−50−5.0%Reduced
Harvest Fund Management Co., Ltd886$118.0K0.01%+886New
Fifth Third Bancorp723$96.4K0.00%+28+4.0%Added
Clearstead Advisors, LLC685$91.3K0.00%+85+14.2%Added
C M Bidwell & Associates Ltd626$83.5K0.05%+31+5.2%Added
HHM Wealth Advisors, LLC625$83.3K0.01%00.0%Unchanged
VitalStone Financial, LLC597$79.6K0.05%00.0%Unchanged
Lazard Asset Management LLC593$79.0K0.00%+10+1.7%Added
Barrett & Company, Inc.567$75.5K0.03%−566−50.0%Reduced
Russell Investments Group, Ltd.518$69.1K0.00%−77−12.9%Reduced
Danske Bank A/S500$66.7K0.00%+500New
Huntington National Bank421$56.1K0.00%+36+9.4%Added
Signaturefd, LLC403$53.7K0.00%−20−4.7%Reduced
Catalyst Funds Management Pty Ltd400$53.3K0.01%+400New
DHJJ Financial Advisors, Ltd.360$48.0K0.02%00.0%Unchanged
Lindbrook Capital, LLC299$39.9K0.00%−22−6.9%Reduced
Parallel Advisors, LLC262$34.9K0.00%−64−19.6%Reduced
Quarry LP252$33.6K0.01%−1,027−80.3%Reduced
Massmutual Trust Co FSB239$31.9K0.00%00.0%Unchanged
Leonteq Securities AG229$30.5K0.00%+215+1,535.7%Added
NBC Securities, Inc.228$30.0K0.00%+73+47.1%Added
Hilltop National Bank218$29.1K0.01%00.0%Unchanged
Harbour Investments, Inc.202$26.9K0.00%00.0%Unchanged
GAMMA Investing LLC197$26.3K0.00%−62−23.9%Reduced
Smartleaf Asset Management LLC190$25.3K0.00%+135+245.5%Added
Washington Trust Co184$24.5K0.00%−274−59.8%Reduced
Riverview Trust Co169$22.5K0.02%00.0%Unchanged
Allworth Financial LP160$21.4K0.00%−1−0.6%Reduced
EverSource Wealth Advisors, LLC160$21.3K0.00%−113−41.4%Reduced
Rise Advisors, LLC154$20.5K0.01%00.0%Unchanged
Spire Wealth Management144$19.2K0.00%−1−0.7%Reduced