Stake in World's Biggest Airport on Sale Weeks After Open

  • Vinci, ADP and its Turkish unit are among interested parties
  • Hub is one of world’s largest; footprint larger than Manhattan

A security guard walks along an upper floor of Terminal 3 at Istanbul’s new airport.

Photographer: Kostas Tsironis/Bloomberg
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Some of the owners of the joint venture that operates Istanbul’s giant new airport hired Lazard Ltd. to sell their stake in the $11 billion hub, according to people with knowledge of the matter.

The U.S. investment bank is working with some members of the IGA consortium to provide a valuation of the airport and manage discussions with potential buyers, the people said, asking not to be identified because the process is confidential.