CBLK - Carbon Black jumps 10% amid report it's exploring sale August, 09 2019 03:00 PM Carbon Black Inc. Carbon Black (NASDAQ:CBLK) has jumped to a 9.9% gain after a report from CTFN that the company is exploring a sale.More news on: Carbon Black, Inc., Tech stocks news, Stocks on the move, Merger & acquisition news, Read more ...