NEW YORK (AP) — Shares of some top biotechnology companies are up at 10 a.m.:

Amgen Inc. rose $1.56 or 1.8 percent, to $88.88.

Biogen Idec rose $1.36 or 1.0 percent, to $143.42.

Celgene Corp. rose $.33 or .4 percent, to $74.38.

Gilead Sciences Inc. rose $4.08 or 6.3 percent, to $68.99.