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

Amgen Inc. rose $.31 or .4 percent, to $86.96.

Biogen Idec rose $1.15 or .8 percent, to $148.51.

Celgene Corp. rose $.34 or .4 percent, to $78.20.

Gilead Sciences Inc. rose $.41 or .5 percent, to $75.96.