Offer documents detailing International Airlines Group’s €1.36 billion bid for Aer Lingus are being sent to shareholders in the Irish airline today.
The offer will remain open for acceptance until July 16 when an extraordinary general meeting will be held in Dublin over the sale.
The Aer Lingus board recommended acceptance of the offer last month after the Irish government agreed to sell its 25% stake.
The Aer Lingus takeover by British Airways owner IAG is conditional on 29.8% shareholder Ryanair selling its stake.
But Ryanair is fighting a ruling by the UK Competition and Markets Authority that it must cut its stake to 5%.