Shares of Modena fell 4.4%, Pfizer fell 2%, Novavax fell nearly 1% and BioNTech fell 2.6%. The US Senate Finance Committee supported the nomination of "anti-vaccine" Kennedy Jr., the US health secretary.
Asmeo shares fell 6%, and other chip stocks also fell.
Shares of Merck (MRK. N) fell 6 percent, touching their lowest level since March 15.