** Shares of medical device maker Stryker SYK.N rise 2.82% to $345.14 premarket

** Co says it has contained a recent cybersecurity incident and found no evidence of impact on customer, supplier, vendor or partner systems

** Stryker says a malicious file was used to hide activity but could not spread within or outside its systems, based on an investigation with Palo Alto Networks' PANW.O Unit 42

** Incident affected the company's corporate network, including its Microsoft MSFT.O environment - SYK

** Investigation is ongoing and Stryker has not determined whether the incident will have a material impact on its business or finances - SYK

** Shares down ~2% in 2025

(Reporting by Sahil Pandey in Bengaluru)

((Sahil.Pandey@thomsonreuters.com))