Del Vecchio, who owns a stake of around 2 percent in the lender, also said he did not think that the bank may need a capital increase.
"I am not worried at all... these things can happen in companies," said Del Vecchio when asked about the probe. UniCredit said earlier this month that a preliminary internal audit after news of the probe emerged had found no wrongdoing.
Del Vecchio, founder of eyewear maker Luxottica, said his assessment of Ghizzoni was "good."
"I like managers who have risen through the ranks," he added.
(Reporting by Gianluca Semeraro; writing by Francesca Landini)
