** Sandwich chain Potbelly PBPB.O jumps 31.8% to $17.02 premarket after pvt co Ractrack to acquire PBPB for $566 mln in all cash deal
** PBPB shareholders to receive $17.12 per share, a premium of 32.4% from co's last close of $12.93, according to Reuters calculations
** The deal is expected to close in Q4 of 2025
** If the deal is terminated under certain conditions, PBPB to pay a termination fee of $19.8 mln
** Up to last close, PBPB up 37.3% YTD
(Reporting by Avinash P in Bengaluru)
((Avinash.P@thomsonreuters.com;))