Conor McGregor Nets Up To $600 Million In Sale Of Proper No. Twelve Irish Whiskey Conor McGregor Nets Up To $600 Million In Sale Of Proper No. Twelve Irish Whiskey Reaching a long-term agreement worth up to $600 million, the Proper No. Twelve Irish Whiskey founding team led by Conor McGregor will continue in collaboration with Proximo Spirits after it was announced this week McGregor had sold his majority share in the brand he helped found. The new long-term deal is a windfall for brand co-founders McGregor, Audie Attar, and Ken Austin. That sum, according to Austin, includes the $250 million the team has already earned in the brand’s first two years in business with Proximo, which previously held a 49-percent stake.