NEW YORK — Warren Buffett says he’s done with radiation treatments for cancer, and the Oracle of Omaha seems eager to move on.

The billionaire investor and chairman and CEO of investment firm Berkshire Hathaway Inc. broke the news Friday while speaking to a group of executives from newspapers he owns. “It’s a great day for me. Today I had my 44th and last day of radiation,” he said, according to the Berkshire-owned Omaha World-Herald.

Buffett had disclosed in the spring that he had been diagnosed with prostate cancer. At the time, he said the disease was detected early and wasn’t life-threatening.

Any discussion of Buffett’s health raises questions about how long he can keep running his investment firm, Berkshire Hathaway.

Buffett turned 82 two weeks ago and celebrated by giving away more of his $44 billion fortune to his three children, for their charitable foundations.