M&A wrap: Thermo Fisher, Qiagen, Coronavirus, Bregal Sagemount, AEI, GTCR, FP, Riverside, Merrill, Paul Hastings, Houlihan Lokey, Audax
Thermo Fisher buys coronavirus test maker Qiagen in biggest healthcare of the deal of the year. Bregal Sagemount raises third fund. In more PE news, AEI, GTCR and FP make deals.