Bernard Arnault, who has led LVMH for nearly 40 years, has five children, all of whom are involved in the management of the group.

For Stefan Bauknecht, quoted by Reuters and an equity manager at DWS, a subsidiary of Deutsche Bank and the twelfth largest shareholder of the French giant, "Succession planning now appears uncertain and opaque."

A similar view is shared by Ariane Hayate, European fund manager at Edmond de Rothschild, also quoted by the news agency: "Ten years ago, the issue of succession was not on the agenda. Today, it has become a risk factor and leads to a governance discount for the company."

As a reminder, last April, an overwhelming majority of shareholders supported the extension of Bernard Arnault's mandate, even though "a few dissenting votes were recorded," Reuters adds.

Bernard Arnault has extended, for the second time, the age limit for his combined roles as CEO and chairman, raising it to 85. He will turn 77 on March 5.