In 2010, Kroenke exercised his right of first refusal to purchase the remaining interest in the Rams from the estate of late owner Georgia Frontiere. On August 25, 2010, he became full owner of the Rams by unanimous consent of the NFL. To gain approval from NFL owners, Kroenke agreed to turn over control of the Denver Nuggets and Colorado Avalanche to his son, Josh, by the end of 2010, and he had to give up his majority stake in both teams in December 2014. The NFL does not allow its owners to hold majority control of major league teams in other NFL markets. On October 7, 2015, the NFL approved transfer of his ownership stake of the Avalanche and Nuggets to his wife, Ann Walton Kroenke.