Approval from British regulators for the $69 billion takeover was the last hurdle left for the tech giant, which saw off serious challenges to the transaction.

Read More internal-storyline-no, Mergers, Acquisitions and Divestitures, Computer and Video Games, Activision Blizzard Inc, Competition and Markets Authority (Great Britain), Microsoft Corp, Federal Trade Commission, Khan, Lina, Adobe Systems Inc, Cisco Systems Inc, Figma Inc, Splunk Inc, Ubisoft Entertainment