Kidney Disease Treatment Firm DaVita’s Stock Falls on Ransomware Attack Disclosure

Shares of DaVita (

DVA

) led
S&P 500
decliners Monday morning after the kidney disease treatment company revealed it had suffered a ransomware attack.

In a filing with the
Securities and Exchange Commission (SEC)
, DaVita said that on Saturday it “became aware of a ransomware incident that has encrypted certain elements of our network.”

The Denver-based dialysis services firm added that “the incident is impacting some of our operations, and while we have implemented interim measures to allow for the restoration of certain functions, we cannot estimate the duration or extent of the disruption at this time.”

DaVita said it has “activated our response protocols and implemented containment measures, including proactively isolating impacted systems. We are actively working to assess and remediate the incident with the assistance of third-party cybersecurity professionals and have notified law enforcement of the matter.”

Shares of DaVita fell 4% in recent trading. They are little changed in 2025 but up 15% over the past 12 months.

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