Singapore-based investment firm takes equity stake in Louisville-based GHX

LOUISVILLE – Temasek Holdings Ltd., an investment firm based in Singapore, has agreed to acquire a “significant” ownership stake in Louisville-based Global Healthcare Exchange LLC. As part of the agreement, Thoma Bravo, a private-equity firm based in Chicago that acquired GHX in 2014, will retain a minority interest. Thoma Bravo sold some of its shares in GHX to Temasek, but neither financial details of the deal nor the percent of ownership either firm now has…