Placed under investigation for complicity in breach of trust, the Swiss lawyer is suspected of participating in the misappropriation of Hermès shares belonging to Nicolas Puech, an heir to the group's founding family, for the benefit of LVMH.

According to the prosecutor's office, investigators are specifically looking into his role as an advisor and director of the offshore company Dilico. The French financial markets regulator (AMF) had previously identified this entity as a vehicle used to transfer Hermès securities to institutions linked to Bernard Arnault's group.

This judicial development brings renewed scrutiny to the circumstances surrounding LVMH's entry into the capital of its rival. Revealed in 2010, the stakebuilding sparked years of market and legal warfare between the two groups and led the AMF to fine LVMH 8 million euros in 2013 for failing to meet disclosure requirements.

For his part, 83-year-old Nicolas Puech claims he was unknowingly deprived of a stake now valued at over 10 billion euros. In a complaint filed in Paris in late 2023, he accused his former wealth manager, Eric Freymond, who passed away in 2025, along with potential accomplices, of misappropriating his assets.

'As stated in December, LVMH and its shareholder forcefully reaffirm that they have at no time misappropriated shares of Hermès International, in any manner whatsoever or without the knowledge of any party.'