T-Mobile US (TMUS) and Sprint (S) announced they have entered into a definitive agreement to merge in an all-stock transaction at a fixed exchange ratio of 0.10256 T-Mobile shares for each Sprint share or the equivalent of 9.75 Sprint shares for each T-Mobile US share.

Based on closing share prices on April 27, this represents a total implied enterprise value of approximately $59B for Sprint and approximately $146B for the combined company. The combined company will be named T-Mobile and will be headquartered in Bellevue, Wash., with a second headquarters in Overland Park, Kansas.

John Legere, current President and Chief Executive Officer of T-Mobile US and the creator of T-Mobile's successful Un-carrier strategy, will serve as Chief Executive Officer, and Mike Sievert, current Chief Operating Officer of T-Mobile, will serve as President and Chief Operating Officer of the combined company. The remaining members of the new management team will be selected from both companies during the closing period. T

im Hottges, current T-Mobile US Chairman of the Board, will serve as Chairman of the Board for the new company. Masayoshi Son, current SoftBank Group Chairman and CEO, and Marcelo Claure, current Chief Executive Officer of Sprint, will serve on the board of the new company.

"This combination will create a fierce competitor with the network scale to deliver more for consumers and businesses in the form of lower prices, more innovation, and a second-to-none network experience - and do it all so much faster than either company could on its own," said John Legere. "As industry lines blur and we enter the 5G era, consumers and businesses need a company with the disruptive culture and capabilities to force positive change on their behalf."

"The combination of these two dynamic companies can only benefit the U.S. consumer. Both Sprint and T-Mobile have similar DNA and have eliminated confusing rate plans, converging into one rate plan: Unlimited," said Marcelo Claure. "We intend to bring this same competitive disruption as we look to build the world's best 5G network that will make the U.S. a hotbed for innovation and will redefine the way consumers live and work across the U.S., including in rural America. As we do this, we will force our competitors to follow suit, as they always do, which will benefit the entire country. I am confident this combination will spur job creation and ensure opportunities for Sprint employees as part of a larger, stronger combined organization, and I am thrilled that Kansas City will be a second headquarters for the merged company."