 Coupa Software Inc. COUP, -2.53 shares jumped 21 in premarket trades Monday it agreed to be taken private by Thoma Bravo for 8 billion in cash after reports of a deal earlier. Thoma Bravo will pay 81 a share, a premium of 77 over Coupas closing stock price on Nov. 22, the last day prior to media reports about a potential deal for the San Mateo, Calif. 