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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 2024

Institutional positions in Masimo Corp as of Dec 31, 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
366
+12 vs. Q3 2024
Shares held
51.4M
+1.55M (+3.1%) vs. Q3 2024
Total value
$8.50B
+$1.86B (+28.0%) vs. Q3 2024
New holders
62
117 more added
Sold out
50
119 more reduced

8 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2024: 366 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 2024: $8.50B
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 2024

Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q3 2024.

Institutions holding MASI in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Empowered Funds, LLC3,891$643.2K0.01%+1,796+85.7%Added
Verus Capital Partners, LLC3,651$603.5K0.06%00.0%Unchanged
Healthcare of Ontario Pension Plan Trust Fund3,587$592.9K0.00%−27,313−88.4%Reduced
Mariner, LLC3,459$571.8K0.00%+321+10.2%Added
AQR Capital Management LLC3,442$569.0K0.00%−12,774−78.8%Reduced
Oxford Financial Group Ltd3,430$567.0K0.04%−16−0.5%Reduced
Truist Financial Corp3,385$559.5K0.00%−510−13.1%Reduced
Sigma Planning Corp3,365$556.2K0.02%+600+21.7%Added
Lido Advisors, LLC3,356$554.8K0.00%+3,356New
Janney Montgomery Scott LLC3,352$554.0K0.00%−346−9.4%Reduced
Securian Asset Management, Inc3,333$550.9K0.02%−100−2.9%Reduced
Nelson, Van Denburg & Campbell Wealth Management Group, LLC3,279$542.0K0.02%−2,452−42.8%Reduced
Farringdon Capital, Ltd.3,217$531.8K0.22%+3,217New
PEAK6 LLC3,196$528.3K0.02%+3,196New
Crossmark Global Holdings, Inc.3,160$522.0K0.01%−88−2.7%Reduced
Vestmark Advisory Solutions, Inc.3,085$510.0K0.02%+1,043+51.1%Added
DAFNA Capital Management LLC3,000$495.9K0.13%00.0%Unchanged
Malaga Cove Capital, LLC2,984$493.3K0.19%−21−0.7%Reduced
Franklin Resources Inc2,925$483.5K0.00%+1,242+73.8%Added
AE Wealth Management LLC2,852$471.4K0.00%+872+44.0%Added
Inceptionr LLC2,792$461.5K0.10%+337+13.7%Added
180 Wealth Advisors, LLC2,753$455.1K0.07%−29−1.0%Reduced
M&T Bank Corp2,660$440.1K0.00%+124+4.9%Added
Buckhead Capital Management LLC2,650$438.0K0.14%00.0%Unchanged
Tower Research Capital LLC (TRC)2,588$427.8K0.01%+1,515+141.2%Added
North Star Asset Management Inc2,565$424.0K0.02%−6−0.2%Reduced
Wesleyan Assurance Society2,550$421.0K0.03%00.0%Unchanged
Prudential Financial Inc2,451$405.1K0.00%−4,185−63.1%Reduced
Maryland State Retirement & Pension System2,447$404.5K0.01%00.0%Unchanged
KCM Investment Advisors LLC2,415$399.2K0.01%00.0%Unchanged
Wealth Enhancement Advisory Services, LLC2,361$390.3K0.00%−47−2.0%Reduced
Utah Retirement Systems2,300$380.2K0.00%00.0%Unchanged
Coldstream Capital Management Inc2,291$378.7K0.01%+10+0.4%Added
Hardy Reed LLC2,172$359.0K0.03%00.0%Unchanged
BancorpSouth Bank2,172$359.0K0.02%00.0%Unchanged
Freestone Grove Partners LP2,162$357.4K0.00%+2,162New
Commonwealth Equity Services, LLC2,139$354.0K0.00%+2,139New
Campbell & CO Investment Adviser LLC2,083$344.3K0.03%−6,876−76.7%Reduced
ProShare Advisors LLC2,078$343.5K0.00%+153+7.9%Added
Atria Investments LLC2,026$334.9K0.00%+2,026New
MML Investors Services, LLC1,967$325.0K0.00%−89−4.3%Reduced
Allianz Asset Management GmbH1,879$310.6K0.00%−2,678−58.8%Reduced
Cetera Investment Advisers1,846$305.1K0.00%+1,846New
Vontobel Holding Ltd.1,811$299.4K0.00%−1,375−43.2%Reduced
Crestline Management, LP1,800$297.5K0.01%+1,800New
SeaCrest Wealth Management, LLC1,790$295.9K0.03%00.0%Unchanged
Shelton Capital Management1,713$283.2K0.01%00.0%Unchanged
Perissos Private Wealth Management, LLC1,700$281.0K0.21%00.0%Unchanged
CIBC Asset Management Inc1,631$269.6K0.00%+87+5.6%Added
Pitcairn Co1,630$269.4K0.02%−5−0.3%Reduced
M&G Plc1,610$265.6K0.00%−1,443−47.3%Reduced
Mission Wealth Management, LP1,605$265.3K0.01%−600−27.2%Reduced
Cerity Partners LLC1,792$263.5K0.00%−161−8.2%Reduced
Envestnet Portfolio Solutions, Inc.1,505$248.8K0.00%+1,505New
Brown Capital Management LLC1,481$244.8K0.01%−2,923−66.4%Reduced
Virtu Financial LLC1,478$244.0K0.01%+1,478New
Fifth Third Wealth Advisors LLC1,456$240.7K0.01%+1,456New
Quadrant Capital Group LLC1,408$232.7K0.02%+32+2.3%Added
Trust Point Inc.1,390$229.8K0.02%+1,390New
Keel Point, LLC1,328$219.5K0.02%+1,328New
Forum Financial Management, LP1,314$217.2K0.00%+1,314New
apricus wealth, LLC1,303$215.4K0.14%+1,303New
Pacific Point Advisors, LLC1,184$208.0K0.13%+1,184New
Greenleaf Trust1,257$207.8K0.00%+1,257New
HB Wealth Management, LLC1,214$200.7K0.00%+1,214New
Assetmark, Inc1,166$192.7K0.00%−17−1.4%Reduced
Whittier Trust Co1,157$191.3K0.00%+23+2.0%Added
CWM, LLC1,135$188.0K0.00%+65+6.1%Added
Advisor Group Holdings, Inc.1,063$175.8K0.00%−6,217−85.4%Reduced
BI Asset Management Fondsmaeglerselskab A/S985$163.0K0.00%+985New
Harbor Investment Advisory, LLC970$160.3K0.01%00.0%Unchanged
United Community Bank946$156.4K0.06%−10−1.0%Reduced
State of Wyoming923$152.6K0.02%−991−51.8%Reduced
Simplex Trading, LLC825$136.0K0.00%−11,704−93.4%Reduced
Northwest & Ethical Investments L.P.700$115.6K0.00%+700New
C M Bidwell & Associates Ltd614$101.5K0.06%−12−1.9%Reduced
Fifth Third Bancorp610$100.8K0.00%−113−15.6%Reduced
Barrett & Company, Inc.567$93.7K0.04%00.0%Unchanged
GAMMA Investing LLC466$77.0K0.01%+269+136.5%Added
Signaturefd, LLC423$69.9K0.00%+20+5.0%Added
Kohmann Bosshard Financial Services, LLC408$67.4K0.01%+408New
Parallel Advisors, LLC397$65.6K0.00%+135+51.5%Added
DHJJ Financial Advisors, Ltd.360$59.5K0.02%00.0%Unchanged
Huntington National Bank323$53.4K0.00%−98−23.3%Reduced
Lindbrook Capital, LLC297$49.1K0.00%−2−0.7%Reduced
Ronald Blue Trust, Inc.286$47.3K0.00%+160+127.0%Added
SBI Securities Co., Ltd.278$46.0K0.00%+278New
Smartleaf Asset Management LLC250$42.1K0.00%+60+31.6%Added
Massmutual Trust Co FSB240$39.7K0.00%+1+0.4%Added
EverSource Wealth Advisors, LLC224$37.0K0.00%+64+40.0%Added
Allworth Financial LP212$36.7K0.00%+52+32.5%Added
Hilltop National Bank218$36.0K0.01%00.0%Unchanged
Harbour Investments, Inc.202$33.4K0.00%00.0%Unchanged
Trust Co of Vermont200$33.1K0.00%+200New
Umb Bank N A191$31.6K0.00%+123+180.9%Added
Washington Trust Co184$30.4K0.00%00.0%Unchanged
Natixis181$29.9K0.00%−14,205−98.7%Reduced
Riverview Trust Co169$27.9K0.03%00.0%Unchanged
Jones Financial Companies LLLP161$26.6K0.00%+161New
Northwestern Mutual Wealth Management Co152$25.1K0.00%−1,508−90.8%Reduced