Active traders and day traders have many stocks to choose from this Thursday morning.  We are tracking news and moves in shares of Orexigen Therapeutics, Inc. (NASDAQ: OREX), Progenics Pharmaceuticals, Inc. (NASDAQ: PGNX), and Yongye International, Inc.

Orexigen Therapeutics, Inc. (NASDAQ: OREX) is up 5% premarket to $3.77 on heavy volume, relative to a 52-week range of $2.47-$11.15. Shares of the pharmaceutical
company dropped more than 70% last week after the FDA delayed approval of a key weight-loss drug.

Progenics Pharmaceuticals, Inc. (NASDAQ: PGNX) is up 8.5% to $6.25, relative to a 52-week range of $4.00-$7.00. The company recently announced a deal to sell distribution rights for Relistor to Salix Pharmaceuticals.

Yongye International, Inc. (NASDAQ: YONG) is down nearly 10% premarket to $6.60, relative to a 52-week range of $5.57-$9.49.