Career in the public sector Weinberg started his career as a civil servant in the French administration (1976–81), before becoming chief of staff to Budget Minister
Laurent Fabius (1981–82).
Career in the private sector Weinberg later held several management positions at
FR3 and
Havas. In 1990, after three years as General Manager with investment bank Pallas Groupe, he joined the Pinault Group as CEO of
CFAO. Next, he was appointed CEO of
Rexel (1991–95). From 1995 to 2005, he was chairman of the management board of
PPR, the largest non-food retailer in Europe and the third largest multi-brand luxury goods company in the world. He is the chairman of
Sanofi, a French pharmaceutical firm, known for its prescription products such as Lantus insulin. ==Other activities==