** Shares of payments firm Shift4 Payments FOUR.N slide
11% to $101.61
** President-elect Donald Trump taps FOUR CEO Jared Isaacman
to lead NASA
** Benchmark believes FOUR President Taylor Lauber is the
most likely candidate to succeed Isaacman as the CEO
** William Blair believes investors should add to FOUR given
the weakness in stock as its believes franchise value outweighs
uncertainty over around succession
** Brokerage says FOUR could again become an attractive
acquisition candidate for potential strategic buyers, including
payments firm Fiserv FI.N
** As of last close, FOUR shares up 53.6% YTD
(Reporting by Arasu Kannagi Basil in Bengaluru)
((ArasuKannagi.Basil@thomsonreuters.com))