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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.

Q4 2021 vs. Q3 2021

How the institutions holding Masimo Corp changed between Q3 2021 and Q4 2021.

All holders in Q4 2021All holders in Q3 2021

13F holders of MASI: Q3 2021 compared with Q4 2021
MeasureQ3 2021Of which not filed for Q4 2021Q4 2021Change
Holders4758520+53
Shares46.3M40.9K46.4M+141.5K (+0.3%)
Value$12.5B$11.1M$13.6B+$1.05B (+8.4%)

8 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so the changes leave them out.

New holders (95)

Institutions that held Masimo Corp at the end of Q4 2021 but not at the end of Q3 2021.

Institutions new to MASI in Q4 2021
InstitutionSharesValue% of portfolio
Moore Capital Management, LP89,831$26.3M0.67%
Adage Capital Partners GP, L.L.C.80,000$23.4M0.04%
Qube Research & Technologies Ltd34,085$9.98M0.08%
Yousif Capital Management, LLC26,188$7.67M0.08%
EFG Asset Management (North America) Corp.22,639$6.62M0.86%
Cinctive Capital Management LP19,144$5.61M0.26%
Weiss Multi-Strategy Advisers LLC17,209$5.04M0.12%
Lockerman Financial Group, Inc.15,900$4.66M12.18%
Cubist Systematic Strategies, LLC12,934$3.79M0.04%
Banque Pictet & Cie SA10,032$2.94M0.02%
Integral Health Asset Management, LLC10,000$2.93M0.82%
HighTower Trust Services, LTA9,398$2.75M0.27%
Renaissance Technologies LLC6,200$1.81M0.00%
Acadian Asset Management LLC5,757$1.68M0.01%
Seaport Global Advisors, LLC5,301$1.55M2.13%
Algert Global LLC4,990$1.46M0.18%
Sciencast Management LP4,777$1.34M0.24%
Trexquant Investment LP3,724$1.09M0.07%
Congress Wealth Management LLC3,666$1.07M0.02%
Harbor Capital Advisors, Inc.3,652$1.07M0.39%
Quantbot Technologies LP3,648$1.07M0.09%
National Bank of Canada3,236$907.0K0.00%
CenterBook Partners LP2,800$820.0K0.48%
E. Ohman J:or Asset Management AB2,800$819.8K0.02%
XTX Topco Ltd2,409$705.0K0.40%
Paloma Partners Management Co2,330$682.0K0.02%
Allspring Global Investments Holdings, LLC2,212$647.0K0.00%
Verition Fund Management LLC2,130$624.0K0.01%
Sonen Capital LLC1,902$557.0K0.54%
Vident Investment Advisory, LLC1,820$534.0K0.01%
Oak Thistle LLC1,781$521.0K0.40%
Dynamic Technology Lab Private Ltd1,700$498.0K0.06%
Synergy Financial Group, LTD1,396$409.0K0.37%
Magnetar Financial LLC1,390$407.0K0.00%
B. Metzler seel. Sohn & Co. AG1,271$378.0K0.00%
Graham Capital Management, L.P.1,287$376.0K0.02%
Van Eck Associates Corp1,278$374.0K0.00%
JSF Financial, LLC1,272$372.0K0.18%
Stiles Financial Services Inc1,235$362.0K0.17%
J2 Capital Management Inc1,211$355.0K0.34%
Willner & Heller, LLC1,255$340.0K0.45%
Bank of Nova Scotia1,157$339.0K0.00%
Astrantus Ltd1,157$339.0K0.25%
Walleye Capital LLC1,080$316.0K0.01%
Boothbay Fund Management, LLC1,052$308.0K0.01%
United Community Bank1,027$300.7K0.30%
LGT Fund Management Co Ltd.1,000$293.0K0.08%
Keebeck Alpha, LP999$292.0K0.11%
Gsa Capital Partners LLP957$280.0K0.04%
CWM, LLC871$255.0K0.00%
Prelude Capital Management, LLC856$251.0K0.01%
Verdence Capital Advisors LLC818$239.0K0.03%
Caxton Associates LP800$234.0K0.03%
Tokio Marine Asset Management Co Ltd768$225.0K0.02%
WMS Partners, LLC713$209.0K0.04%
CoreCap Advisors, LLC701$205.0K0.01%
Greenleaf Trust695$203.0K0.00%
Patron Partners Advisors, LLC689$202.0K0.13%
Itau Unibanco Holding S.A.268$80.0K0.00%
Fortitude Advisory Group L.L.C.274$80.0K0.04%
Howe & Rusling Inc230$67.0K0.01%
AIA Group Ltd209$61.0K0.00%
Desjardins Global Asset Management Inc.206$60.0K0.01%
Monolith Advisors161$47.0K0.04%
Signet Financial Management, LLC139$41.0K0.01%
Sageworth Trust Co of South Dakota132$39.0K0.06%
Simplex Trading, LLC124$36.0K0.00%
Marshall Wace, LLP113$32.0K0.00%
Snowden Capital Advisors LLC104$30.0K0.00%
Dark Forest Capital Management LP93$27.0K0.01%
Ten Capital Wealth Advisors, LLC85$25.0K0.01%
Lee Financial Co78$23.0K0.00%
Cambridge Trust Co75$22.0K0.00%
Umb Bank N A71$21.0K0.00%
Cornerstone Advisory, LLC60$18.0K0.00%
Quent Capital, LLC61$18.0K0.00%
Covestor Ltd56$17.0K0.02%
Capital Advisors, Ltd. LLC50$15.0K0.00%
RE Dickinson Investment Advisors, LLC32$9.00K0.01%
Motley Fool Asset Management LLC26$8.00K0.00%
CVA Family Office, LLC20$6.00K0.00%
Rise Advisors, LLC20$5.86K0.01%
Gradient Investments LLC16$5.00K0.00%
Dixon Hughes Goodman Wealth Advisors LLC16$5.00K0.00%
McDonald Partners LLC11$3.22K0.00%
Absolute Capital Management, LLC11$3.22K0.00%
Trust Co of Vermont11$3.00K0.00%
Jones Financial Companies LLLP8$2.00K0.00%
Sutton Wealth Advisors Inc.5$1.46K0.00%
AdvisorNet Financial, Inc5$1.00K0.00%
JFS Wealth Advisors, LLC5$1.00K0.00%
JNBA Financial Advisors5$1.00K0.00%
Schubert & Co5$1.00K0.00%
TD Private Client Wealth LLC3$8780.00%
Parkside Financial Bank & Trust1$00.00%

Sold out (42)

Institutions that held Masimo Corp at the end of Q3 2021 and filed for Q4 2021 without it.

Institutions that sold out of MASI in Q4 2021
InstitutionShares, Q3 2021Value, Q3 2021
Eversept Partners, LP67,000$18.1M
Lombard Odier Asset Management (Switzerland) SA40,000$10.8M
Mandatum Life Insurance Co Ltd17,279$4.68M
Mirae Asset Global Investments Co., Ltd.11,557$3.13M
Forsta Ap-Fonden10,000$2.71M
AMP Capital Investors Ltd9,910$2.68M
Holocene Advisors, LP9,668$2.62M
HRT Financial LP9,129$2.47M
Voloridge Investment Management, LLC7,069$1.91M
Mirabella Financial Services LLP5,497$1.49M
Winton Group Ltd4,366$1.18M
Seven Eight Capital, LP4,300$1.16M
Virtu Financial LLC2,894$783.0K
Northwest & Ethical Investments L.P.2,734$740.1K
Legal Advantage Investments, Inc.2,475$670.0K
Fort, L.P.2,459$666.0K
Achmea Investment Management B.V.2,442$661.0K
Quantamental Technologies LLC2,067$560.0K
Edgestream Partners, L.P.1,570$425.0K
Two Sigma Securities, LLC1,222$331.0K
Wealthsource Partners, LLC1,212$328.0K
Maverick Capital LtdSuperinvestorMaverick Capital1,048$284.0K
CIBC World Markets Inc.975$264.0K
Susquehanna International Group, LLP742$201.0K
Alpha Paradigm Partners, LLC567$153.0K
Cullen/Frost Bankers, Inc.265$72.0K
O'Shaughnessy Asset Management, LLC232$63.0K
Ibex Wealth Advisors199$54.0K
DuPont Capital Management Corp170$46.0K
Meeder Asset Management Inc109$30.0K
Arkadios Wealth Advisors68$18.0K
Twin Tree Management, LP60$16.0K
Capital Advisory Group Advisory Services, LLC36$10.0K
Global Retirement Partners, LLC31$8.00K
Meridian Wealth Partners, LLC20$5.00K
McCarthy Grittinger Financial Group, LLC8$2.17K
RPG Investment Advisory, LLC6$2.00K
HighMark Wealth Management LLC6$2.00K
Farmers & Merchants Investments Inc3$1.00K
Carroll Financial Associates, Inc.6$1.00K
CX Institutional4$1.00K
Liberty Wealth Management LLC1$0

Not filed for Q4 2021 yet (8)

Institutions that held Masimo Corp at the end of Q3 2021 and haven't filed a 13F for Q4 2021. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding MASI in Q3 2021 that haven't filed for Q4 2021
InstitutionShares, Q3 2021Value, Q3 2021
Marshall Wace North America L.P.36,048$9.76M
World Asset Management Inc1,703$461.0K
Alexandria Capital, LLC1,000$271.0K
Cascadia Advisory Services, LLC895$242.0K
B. Metzler seel. Sohn & Co. Holding AG854$231.0K
BBVA USA345$93.0K
Heritage Wealth Management, LLC60$16.0K
Berman Capital Advisors, LLC23$6.00K