T-Mobile was the auction's biggest participant with $8 billion in spectrum winnings, followed by DISH at $6.2 billion, Comcast at $1.7 billion, and AT&T at $910 million. The auction's biggest losers won't be made publicly available for several years.
https://www.dslreports.com/shownews/Dish-ATT-Comcast-TMobile-Big-Winners-in-Spectrum-Auction-139371
https://www.dslreports.com/shownews/Dish-ATT-Comcast-TMobile-Big-Winners-in-Spectrum-Auction-139371