** Shares of chipmaker Wolfspeed WOLF.N fall 38% to $3.3 in premarket trading
** On Thursday, the company named chip industry veteran Robert Feurle as its CEO effective May 1
** About 32.5% of WOLF's free float is in short position, according to Ortex estimates as of March 27
** In November, WOLF ousted top boss Gregg Lowe without cause
** Up to last close, WOLF down 19.2% YTD
(Reporting by Kritika Lamba and Medha Singh in Bengaluru)
((Kritika.Lamba@thomsonreuters.com))