Biotech and pharmaceutical stocks underperformed the broader markets Monday, with the Nasdaq and Amex biotechnology indices down by 3.2.% and 3.3%, respectively.

Among individual stocks, notable movers were:

Seattle Genetics ( SGEN), up 6.4% at $8.62

Omrix Biopharmaceuticals ( OMRI), up 5% at $15.48

Vertex ( VRTX), up 4.9% at $22

Bristol-Myers Squibb ( BMY), up 3.9% at $18.33.

Amylin ( AMLN), down 14% at $8.44

Alnylam ( ALNY), down 10.8% at $18.88

Nektar ( NKTR), down 8.4% at $4.15

Alkermes ( ALKS), down 8.3% at $9.11
This article was written by a staff member of TheStreet.com.