UniCredit (CRDI.MI), opens new tab on Friday filed its buyout offer for rival Banco BPM BAMI.MI with Italy’s market regulator, and CEO Andrea Orcel said the price was adequate. The filing makes the 10-billion-euro ($10.5 billion) all-share offer, which UniCredit announced on Nov. 25, binding and sets a price floor. UniCredit also applied to relevant authorities for regulatory approval.…