Benzinga's Volume Movers

Aratana Therapeutics Inc PETX shares climbed 14.95 percent to $15.45. The volume of Aratana Therapeutics shares traded was 708 percent higher than normal. Aratana Therapeutics reported positive pivotal results for AT-002. MYR Group Inc MYRG surged 3.51 percent to $30.25. The volume of MYR Group shares traded 702 percent higher than normal. MYR Group will replace Molina Healthcare, Inc. MOH in the S&P SmallCap 600 after the close of trading on June 30. J B Hunt Transport Services Inc JBHT shares moved up 0.81 percent to $84.50. The volume of J B Hunt Transport traded was 315 percent higher than normal. J.B. Hunt Transport will replace Integrys Energy Group, Inc. TEG in the S&P 500. Amphenol Corporation APH shares rose 4.08 percent to $57.96. The volume of Amphenol shares traded was 216 percent higher than normal. Amphenol offered to acquire FCI Asia Pte Ltd from Bain Capital for $1.275 billion.