Benzinga's Volume Movers

shares climbed 5.58 percent to $13.62. The volume of Builders FirstSource shares traded was 2449 percent higher than normal. Builders FirstSource announced a public offering of 11 million shares of common stock.

surged 26.65 percent to $73.95. The volume of Cytec Industries shares traded 2149 percent higher than normal. Belgium's Solvay announced its plans to buy Cytec for $5.5 billion.

shares moved up 8.82 percent to $203.48. The volume of Panera Bread traded was 770 percent higher than normal. Panera Bread reported Q2 earnings of $1.61 per share on revenue of $676.66 million.

shares rose 18.70 percent to $18.28. The volume of Rubicon Project shares traded was 703 percent higher than normal. Rubicon Project reported upbeat Q2 results.