Comcast Corp. offered 21st Century Fox Inc. $35 a share in cash for assets that it had agreed to sell Walt Disney Co. , Comcast said late Wednesday. The offer is a 19% premium over Disney’s offer and values Fox at $65 billion. “In light of yesterday’s decision in the AT&T/Time Warner case, the limited time prior to your shareholders’ meeting, and our strong continued interest, we are pleased to present a new, all-cash proposal that fully addresses the Board’s stated concerns with our prior proposal,” Comcast Chief Executive Brian Roberts wrote in a letter to Fox executives. Comcast said it will host a call with investors at 4:45 p.m. Eastern time Wednesday. Comcast stock is down 1% after-hours trading and closed up 0.2% to $32.32 during the regular session. Fox class B shares are up more than 1% in after hours trading after closing up 7.5% to $43.41 during the regular session. Comcast stock is down 19% this year, as the S&P 500 index has gained 4.2%.