Masimo stock jumps 34% as Danaher seals $9.9 billion buyout at $180 a share
Masimo shares jumped 34.3% to $174.79 after Danaher agreed to acquire the patient-monitoring firm for $180 per share in cash. Danaher stock fell 2.8% as investors reacted to the company’s move into medtech. The deal, valued at a 38.3% premium to Masimo’s prior close, is expected to complete in the second half of 2026 pending approvals. Masimo’s stock closed below the offer price, reflecting deal risk and timing.