Shares of Masimo Corporation (MASI) soared over 33% on Tuesday morning after the company agreed to be acquired by Danaher Corporation in a cash transaction valued at about $9.9 billion.
The stock is currently trading at $174.38, up $44.23 or 33.98%, on the Nasdaq. The stock opened at $175.00 after closing Tuesday at $130.15. The stock has traded between $125.94 and $194.88 in the past 52-week period. Trading volume surged far above average following the announcement.
Under the terms of the agreement, Danaher will acquire Masimo for $180.00 per share in cash, representing a significant premium to the prior closing price. Masimo will operate as a standalone business unit within Danaher's Diagnostics segment following completion.
The transaction has been unanimously approved by both companies' boards and is expected to close in the second half of 2026, subject to regulatory approvals and customary closing conditions.
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