https://brandtree.org/company/iagAcquisitions, divestitures and ownership changes involving IAG.https://brandtree.org/deal/iag-acquires-aer-lingus-2015https://brandtree.org/deal/iag-acquires-aer-lingus-2015Tue, 18 Aug 2015 00:00:00 GMTIAG acquired Aer Lingus for about €1.36 billion, after the Irish government agreed to sell its stake against commitments on Heathrow slots and connectivity. Ryanair, which held a large minority, had been ordered by British regulators to reduce it years earlier.https://brandtree.org/deal/iag-formed-2011https://brandtree.org/deal/iag-formed-2011Fri, 21 Jan 2011 00:00:00 GMTBritish Airways and Iberia merged to form International Consolidated Airlines Group, registered in Spain and headquartered in London. Both airlines kept their names, brands and operating certificates, so passengers saw no change beyond the ownership.