Amgen Inc. experienced a cyber incident that involved the theft of patient information and proprietary data stored in cloud servers, it said in a filing Friday, the latest large healthcare company to suffer a data breach. Amgen detected unauthorized access to the data on third-party cloud servers in July. It subsequently learned some of the data, including patient protected health information, has been exfiltrated from the cloud environment. Soon afterward, Intuitive Surgical Inc., which makes surgical tools and systems, said it was the victim of a cybersecurity incident. Last month, Novo Nordisk identified unauthorized access to some IT systems the drugmaker uses for its global business.