Vinci (Euronext: DG) is a French construction company, formerly called Société Générale d'Enterprises. The company currently employs over 134,000 employees. The company's industry of operation is construction, electrical engineering. Vinci is the world's largest construction company and is listed at Euronext's Paris CAC 40 Stock exchange.
The shares changed hands in a block trade on Dec. 28, according to the newspaper, which did not cite sources.
Vinci was not immediately available for comment.
The stake is worth 229 million euros ($337 million) at ADP's latest closing price of 70 euros a share.
Eager to expand its concessions business, Vinci has repeatedly expressed interest should the government reduce its 68.39 percent stake in ADP, which operates Charles de Gaulle and Orly airports.
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