April 2 (Reuters) - Private equity firm Silver Lake will

buy all shares of Endeavor Group Holdings ( EDR ) it does not

already own in the talent and media company, in a deal valuing

the UFC-owner at $13 billion, the companies said on Tuesday.

As part of the deal, Endeavor stockholders will receive

$27.50 per share in cash, representing a premium of 55% to the

closing price of $17.72 before Silver Lake said it was working

on a proposal to take the company private in October.

Shares were trading at $25.94 in afternoon trading.

Silver Lake is the largest shareholder in Endeavor, owning

about 31% of the outstanding shares as of Dec. 31, according to

LSEG data.

Late last year, Silver Lake said it was working to take

Endeavor private, after the entertainment giant announced it had

begun a review to explore alternatives that better value the

company.

Endeavor had then said it was evaluating strategic options,

but would not consider a sale or disposition of its majority

interest in TKO Group Holdings, which includes a stake

in Ultimate Fighting Championship.

TKO is not party to this transaction and will remain a

publicly traded company, the companies said on Tuesday.

Hollywood power broker Emanuel, who is the CEO of Endeavor,

has transformed the company, which has its roots in representing

film and television talent, into a sports and entertainment

powerhouse with more than 20 acquisitions.