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Wednesday, Jun 10, 2026

Danaher Closes on Acquisition of Masimo

Joins Danaher’s diagnostic segment

Danaher Corp. has completed its $9.9 billion acquisition of Irvine-based Masimo Corp.

Masimo, which specializes in non-invasive patient monitoring devices, is now a wholly-owned subsidiary of Danaher within its diagnostics segment but will continue to operate under the Masimo brand.

With the closing of the deal, Masimo’s common stock ceased trading on the Nasdaq.

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Yuika Yoshida
Yuika Yoshida
Yuika Yoshida has been a reporter covering healthcare, innovation and education at the Orange County Business Journal since 2023. Previous bylines include JapanUp! Magazine and Stu News Laguna. She received her bachelor's degree in literary journalism from the University of California, Irvine. During her time at UC Irvine, she was the campus news editor for the official school paper and student writer for the Samueli School of Engineering. Outside of writing, she enjoys musical theater and finding new food spots within Orange County.

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