** Shares of Formula 1 auto parts supplier PWR Holdings PWH.AX slip 7.3% to A$6.21, their lowest levels since April 21
** Stock marks its worst intraday drop since February 21
** Co says founder and CEO Kees Weel is taking temporary leave to seek treatment for an acute medical condition
** CTO and COO Matthew Bryson to assume role of acting CEO - PWR
** More than 430,000 shares traded, 1.5x the 30-day avg
** PWR Holdings stock down ~21%, YTD
(Reporting by Kumar Tanishk in Bengaluru)
((Tanishk.Kumar@thomsonreuters.com; X: @thatstanishk;))