Warren Buffett has completed radiation treatment for prostate cancer, according to the Omaha World-Herald.
"It's a great day for me. Today I had my 44th and last day of radiation," the tycoon told executives of newspapers his company, Berkshire Hathaway, recently acquired.
The billionaire investor, chief executive of investment firm Berkshire Hathaway, announced in April that he would undergo treatment for the slow-growing cancer.
The New York Times cited him as saying that the cancer had been detected early and was not life-threatening.
He said his recent decision to celebrate his 82nd birthday by giving away more of his $44 billion fortune to his three children, to reward their charitable work, was not related to his health.
However, he also said in February that he had identified his successor as chief executive, without naming the person.
He has nominated the elder of his two sons, Howard, to succeed him as nonexecutive chairman, the Times wrote.
Prostate cancer is the leading cause of cancer death in men aged over 75, Agence France-Presse reported, citing US official data.
"I'll be feeling the side effects for a few weeks yet, but I am so glad to say that's over," the World-Herald quoted Buffett as saying.
Buffett held the number three spot on the Forbes richest list released earlier this year, with an estimated net worth of $44 billion.
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