Mark Brake / Getty Images Tesla sank about 3.5% in trading Monday after CEO Elon Musk's weekend Twitter spat. Musk called a British diver from the Thai cave rescue a "pedo guy" in a now-deleted tweet. Unsworth, the diver, had originally told CNN that Musk can "stick his submarine where it hurts." Musk also drew criticism for newly disclosed donations to a Republican political action committee. Follow Tesla's stock price in real-time here. It was an eventful weekend for Tesla CEO Elon Musk — and the action rolled in to Monday when markets opened, with Tesla shares falling more than 3% in trading.