Masimo Corporation (MASI)

NMS – Real Time Price. Currency in USD

178.55

+0.05 (0.03%)

At close: May 12, 2026, 4:00 PM EDT

180.02

+1.47 (0.82%)

Pre-market: May 13, 2026, 6:59 AM EDT

04.05.2026

Masimo Shareholders Approve Acquisition by Danaher

IRVINE, Calif.--(BUSINESS WIRE)--Masimo Corporation (Nasdaq: MASI) (“Masimo”), a leading global innovator in patient monitoring, today announced that its stockholders voted in favor of the proposal to adopt the previously announced Agreement and Plan of Merger, dated February 16, 2026 (the “Merger Agreement”), by and among Masimo, Danaher Corporation (“Danaher”) (NYSE: DHR) and Mobius Merger Sub, Inc. (the “Merger Sub”) at Masimo's special meeting of stockholders held virtually on May 1, 2026 (.

01.05.2026

Masimo SET Shows Accurate Pulse Oximetry in Newborns of All Skin Tones

MASI's SET pulse oximetry shows accurate, consistent readings in hospitalized newborns across all skin tones in the largest real-world study.

29.04.2026

DXCM or MASI: Which Is the Better Value Stock Right Now?

Investors looking for stocks in the Medical - Instruments sector might want to consider either DexCom (DXCM) or Masimo (MASI). But which of these two stocks presents investors with the better value opportunity right now?

28.04.2026

Masimo SET® Pulse Oximetry Performed Accurately on Hospitalized Newborns of All Skin Tones in Largest-Ever Prospective Real-World Study

IRVINE, Calif.--(BUSINESS WIRE)-- #Masimo--A NICU study evaluating Masimo SET® pulse oximetry on hospitalized newborns found no clinically significant differences in accuracy across skin tones.

08.04.2026

Masimo Investor Alert: Kahn Swick & Foti, LLC Investigates Adequacy of Price and Process in Proposed Sale of Masimo Corporation - MASI

NEW YORK & NEW ORLEANS--(BUSINESS WIRE)--Former Attorney General of Louisiana Charles C. Foti, Jr., Esq. and the law firm of Kahn Swick & Foti, LLC (“KSF”) are investigating the proposed sale of Masimo Corporation (NasdaqGS: MASI) to Danaher Corporation (NYSE: DHR). Under the terms of the proposed transaction, shareholders of Masimo will receive $180.00 in cash for each share of Masimo that they own. KSF is seeking to determine whether this consideration and the process that led to it are ad.

22.03.2026

This $7 Million Masimo Exit Came Before a 34% Surge on $9.9 Billion Acquisition

Bridger Management sold 47,841 shares of Masimo in the fourth quarter. The move resulted in the quarter-end position value decreasing by $7.06 million.

15.03.2026

This Fund Built a $26 Million Stake in a Medical Tech Stock That's Soaring After a $9.9 Billion Deal Announcement

Parkman Healthcare Partners initiated a 200,000-share stake in Masimo during the fourth quarter. The quarter-end position value rose by $26.01 million as a result.

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Press releases

04.05.2026

Masimo Shareholders Approve Acquisition by Danaher

28.04.2026

Masimo SET® Pulse Oximetry Performed Accurately on Hospitalized Newborns of All Skin Tones in Largest-Ever Prospective Real-World Study

IRVINE, Calif.--(BUSINESS WIRE)-- #Masimo--A NICU study evaluating Masimo SET® pulse oximetry on hospitalized newborns found no clinically significant differences in accuracy across skin tones.

08.04.2026

Masimo Investor Alert: Kahn Swick & Foti, LLC Investigates Adequacy of Price and Process in Proposed Sale of Masimo Corporation - MASI

26.02.2026

Halper Sadeh LLC is Investigating Whether KW and MASI are Obtaining Fair Deals for their Shareholders

Insiders may stand to receive substantial financial benefits not available to ordinary shareholders.

Masimo Corporation (MASI)

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Masimo Corporation (MASI)

Masimo Shareholders Approve Acquisition by Danaher

Masimo SET Shows Accurate Pulse Oximetry in Newborns of All Skin Tones

DXCM or MASI: Which Is the Better Value Stock Right Now?

Masimo SET® Pulse Oximetry Performed Accurately on Hospitalized Newborns of All Skin Tones in Largest-Ever Prospective Real-World Study

Masimo Investor Alert: Kahn Swick & Foti, LLC Investigates Adequacy of Price and Process in Proposed Sale of Masimo Corporation - MASI

This $7 Million Masimo Exit Came Before a 34% Surge on $9.9 Billion Acquisition

This Fund Built a $26 Million Stake in a Medical Tech Stock That's Soaring After a $9.9 Billion Deal Announcement

Videos

No Data

Press releases

Masimo Shareholders Approve Acquisition by Danaher

Masimo SET® Pulse Oximetry Performed Accurately on Hospitalized Newborns of All Skin Tones in Largest-Ever Prospective Real-World Study

Masimo Investor Alert: Kahn Swick & Foti, LLC Investigates Adequacy of Price and Process in Proposed Sale of Masimo Corporation - MASI

Halper Sadeh LLC is Investigating Whether KW and MASI are Obtaining Fair Deals for their Shareholders

Masimo Shareholders Approve Acquisition by Danaher

Masimo SET Shows Accurate Pulse Oximetry in Newborns of All Skin Tones

DXCM or MASI: Which Is the Better Value Stock Right Now?

Masimo SET® Pulse Oximetry Performed Accurately on Hospitalized Newborns of All Skin Tones in Largest-Ever Prospective Real-World Study

Masimo Investor Alert: Kahn Swick & Foti, LLC Investigates Adequacy of Price and Process in Proposed Sale of Masimo Corporation - MASI

This $7 Million Masimo Exit Came Before a 34% Surge on $9.9 Billion Acquisition

This Fund Built a $26 Million Stake in a Medical Tech Stock That's Soaring After a $9.9 Billion Deal Announcement

Videos

No Data

Press releases

Masimo Shareholders Approve Acquisition by Danaher

Masimo SET® Pulse Oximetry Performed Accurately on Hospitalized Newborns of All Skin Tones in Largest-Ever Prospective Real-World Study

Masimo Investor Alert: Kahn Swick & Foti, LLC Investigates Adequacy of Price and Process in Proposed Sale of Masimo Corporation - MASI

Halper Sadeh LLC is Investigating Whether KW and MASI are Obtaining Fair Deals for their Shareholders

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Masimo Corporation (MASI)

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Finranks

Company

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Masimo Corporation (MASI)

Masimo Shareholders Approve Acquisition by Danaher

Masimo SET Shows Accurate Pulse Oximetry in Newborns of All Skin Tones

DXCM or MASI: Which Is the Better Value Stock Right Now?

Masimo SET® Pulse Oximetry Performed Accurately on Hospitalized Newborns of All Skin Tones in Largest-Ever Prospective Real-World Study

Masimo Investor Alert: Kahn Swick & Foti, LLC Investigates Adequacy of Price and Process in Proposed Sale of Masimo Corporation - MASI

This $7 Million Masimo Exit Came Before a 34% Surge on $9.9 Billion Acquisition

This Fund Built a $26 Million Stake in a Medical Tech Stock That's Soaring After a $9.9 Billion Deal Announcement

Videos

No Data

Press releases

Masimo Shareholders Approve Acquisition by Danaher

Masimo SET® Pulse Oximetry Performed Accurately on Hospitalized Newborns of All Skin Tones in Largest-Ever Prospective Real-World Study

Masimo Investor Alert: Kahn Swick & Foti, LLC Investigates Adequacy of Price and Process in Proposed Sale of Masimo Corporation - MASI

Halper Sadeh LLC is Investigating Whether KW and MASI are Obtaining Fair Deals for their Shareholders

Masimo Shareholders Approve Acquisition by Danaher

Masimo SET Shows Accurate Pulse Oximetry in Newborns of All Skin Tones

DXCM or MASI: Which Is the Better Value Stock Right Now?

Masimo SET® Pulse Oximetry Performed Accurately on Hospitalized Newborns of All Skin Tones in Largest-Ever Prospective Real-World Study

Masimo Investor Alert: Kahn Swick & Foti, LLC Investigates Adequacy of Price and Process in Proposed Sale of Masimo Corporation - MASI

This $7 Million Masimo Exit Came Before a 34% Surge on $9.9 Billion Acquisition

This Fund Built a $26 Million Stake in a Medical Tech Stock That's Soaring After a $9.9 Billion Deal Announcement

Videos

No Data

Press releases

Masimo Shareholders Approve Acquisition by Danaher

Masimo SET® Pulse Oximetry Performed Accurately on Hospitalized Newborns of All Skin Tones in Largest-Ever Prospective Real-World Study

Masimo Investor Alert: Kahn Swick & Foti, LLC Investigates Adequacy of Price and Process in Proposed Sale of Masimo Corporation - MASI

Halper Sadeh LLC is Investigating Whether KW and MASI are Obtaining Fair Deals for their Shareholders