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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.

Q1 2023 vs. Q4 2022

How the institutions holding Masimo Corp changed between Q4 2022 and Q1 2023.

All holders in Q1 2023All holders in Q4 2022

13F holders of MASI: Q4 2022 compared with Q1 2023
MeasureQ4 2022Of which not filed for Q1 2023Q1 2023Change
Holders4058428+31
Shares44.4M41.0K45.0M+592.5K (+1.3%)
Value$6.58B$6.37M$8.30B+$1.73B (+26.4%)

8 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so the changes leave them out.

New holders (68)

Institutions that held Masimo Corp at the end of Q1 2023 but not at the end of Q4 2022.

Institutions new to MASI in Q1 2023
InstitutionSharesValue% of portfolio
1832 Asset Management L.P.50,000$9.23M0.02%
HRT Financial LP48,289$8.91M0.11%
SG Capital Management LLC40,102$7.40M2.68%
Castleark Management LLC35,240$6.50M0.32%
RK Capital Management, LLC33,955$6.27M1.38%
Abn Amro Investment Solutions26,372$4.87M0.10%
Empower Advisory Group, LLC14,512$2.68M0.01%
AQR Capital Management LLC13,601$2.46M0.01%
DnB Asset Management AS10,990$2.03M0.01%
Zacks Investment Management10,770$1.99M0.03%
Toroso Investments, LLC9,830$1.81M0.06%
Inceptionr LLC8,864$1.64M0.52%
Graham Capital Management, L.P.8,797$1.62M0.06%
Fred Alger Management, LLC8,476$1.56M0.01%
Gsa Capital Partners LLP7,907$1.46M0.14%
Orion Portfolio Solutions, LLC6,839$1.26M0.02%
Allianz Asset Management GmbH6,409$1.18M0.00%
STRS Ohio6,298$1.16M0.01%
Ergoteles LLC5,749$1.06M0.04%
Quadrature Capital Ltd4,897$904.4K0.02%
Private Advisor Group, LLC4,602$849.3K0.01%
Wellington Management Group LLP4,345$801.8K0.00%
Inspire Advisors, LLC4,304$794.2K0.18%
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund3,300$609.0K0.01%
Qtron Investments LLC3,059$564.5K0.12%
Steel Peak Wealth Management LLC3,051$563.0K0.04%
PAX Financial Group, LLC2,914$537.8K0.13%
Duality Advisers, LP2,701$498.4K0.06%
Blair William & Co2,646$488.3K0.00%
National Asset Management, Inc.2,594$478.7K0.01%
Independent Advisor Alliance2,295$423.5K0.02%
CWM Advisors, LLC1,727$318.8K0.04%
Oak Thistle LLC1,635$301.7K0.18%
Centiva Capital, LP1,628$300.4K0.02%
Quantamental Technologies LLC1,612$297.5K0.16%
Cetera Advisors LLC1,591$293.6K0.00%
Jefferies Financial Group Inc.1,589$293.2K0.01%
Jump Financial, LLC1,547$285.5K0.01%
Berkshire Asset Management LLC1,450$267.6K0.02%
PVG Asset Management Corp1,425$263.0K0.84%
Tokio Marine Asset Management Co Ltd1,302$240.3K0.02%
Hamilton Wealth, LLC1,234$227.7K0.08%
Synergy Financial Group, LTD1,196$220.7K0.36%
Mutual Advisors, LLC1,177$217.2K0.01%
Matisse Capital1,166$215.2K0.14%
Accredited Investors Inc.1,149$212.0K0.02%
B. Metzler seel. Sohn & Co. AG1,121$206.9K0.00%
Intrust Bank NA1,102$203.4K0.03%
Alberta Investment Management Corp1,100$203.0K0.00%
Ostrum Asset Management602$111.1K0.01%
Dark Forest Capital Management LP510$94.1K0.02%
Castleview Partners, LLC376$69.4K0.06%
Trivant Custom Portfolio Group, LLC300$55.4K0.04%
Caisse de Depot Et Placement du Quebec200$36.9K0.00%
Nelson, Van Denburg & Campbell Wealth Management Group, LLC115$21.2K0.00%
Machina Capital S.A.S.101$18.6K0.02%
Sunbelt Securities, Inc.74$13.2K0.00%
Raleigh Capital Management Inc.69$12.7K0.01%
Gradient Investments LLC50$9.23K0.00%
GPS Wealth Strategies Group, LLC50$9.23K0.00%
Bokf, NA32$5.91K0.00%
Ameritas Advisory Services, LLC27$5.21K0.00%
BDO Wealth Advisors, LLC25$4.61K0.00%
Values First Advisors, Inc.21$3.88K0.00%
WFA Asset Management Corp12$2.21K0.00%
Lee Financial Co10$1.85K0.00%
EverSource Wealth Advisors, LLC3$5540.00%
Financial Synergies Wealth Advisors, Inc.1$1850.00%

Sold out (37)

Institutions that held Masimo Corp at the end of Q4 2022 and filed for Q1 2023 without it.

Not filed for Q1 2023 yet (8)

Institutions that held Masimo Corp at the end of Q4 2022 and haven't filed a 13F for Q1 2023. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding MASI in Q4 2022 that haven't filed for Q1 2023
InstitutionShares, Q4 2022Value, Q4 2022
Comerica Bank21,340$3.46M
Personal Capital Advisors Corp15,006$2.22M
Allstate Investment Management Co3,086$456.6K
Seeyond803$118.8K
Cribstone Capital Management, LLC500$74.0K
HealthInvest Partners AB152$22.5K
Heritage Wealth Management, LLC120$17.8K
CoreCap Advisors, LLC29$4.29K