Capital Calls: Lucky LBOs, Byron Trott 12 Dec 2022 Concise views on global finance: Coupa Software, a business that tracks expenses has a message for investors weighing its sale to Thoma Bravo: it is doing terribly. Byron Trott’s BDT is taking grill-maker Weber private again for $3.7 bln, a discount to last year’s IPO valuation.