Shares of Hero MotoCorp were up 4 per cent at Rs 2,767 on the BSE in Friday's intra-day trade after the auto major said it will increase ex-showroom prices of its motorcycles and scooters with effect from July 1 to partially offset the steadily growing input cost inflation. In comparison, the S&P BSE Sensex was up 0.6 per cent at 52,577 at 10:26 AM.