Urologix Inc. CEO Stryker Warren has resigned, the company said Monday in a document filed with the Securities and Exchange Commission.

The Minneapolis-based medical device company, which develops treatments for enlarged prostate, did not give a reason for the resignation. Chief operating officer Gregory Fluet will serve as interim CEO.

Warren will remain an employee with the company until March 2013 and then serve as a consultant.

"Stryker has provided the right leadership at a critical time in Urologix's history," chairman Mitchell Dann said in a statement. "His urology relationships and commitments to patients and employees helped transform the company.

Thomas Lee • 612-673-4113