The Pleasonton-California-based company has facilities here and in Woburn as a result of a merger with Thermo Cardiosystems this past February. In a released statement, Thoratec estimates that the move will save the company $2 million annually. While the company also stated that Thoratec would offer jobs in California to some of the employees affected by the transition, D. Keith Grossman, president and CEO of the company, is quoted as saying that Thoratec "committed to maintaining a long-term and significant non-manufacturing presence in its Massachusetts facilities."

The company did not return calls by presstime. It is unclear which facilities will close down and how many employees will be let go.