** Chipmaker Wolfspeed's WOLF.N shares rise 28.8% to $1.52 premarket
** WOLF announces the appointment of Gregor van Issum as CFO, effective Sept. 1
** Van Issum succeeds Kevin Speirits, who is serving as interim CFO and will remain with WOLF to support co and ensure a smooth transition
** WOLF has recently filed for Chapter 11 bankruptcy protection
** As of last close, stock was down ~83% this year
(Reporting by Jaspreet Singh in Bengaluru)
((Jaspreet.Singh@thomsonreuters.com ; https://twitter.com/i_jass))