Check out which companies are making headlines after the bell Tuesday:
KaloBios Pharmaceuticals — The drug developer fell in after-hours trading after reporting disappointing data from a study of a treatment for lung infections for patients with cystic fibrosis.
Micron Technology — The chipmaker edged higher in after-hours trading after reporting mixed first-quarter results.
Sonic — The restaurant-chain operator rallied in after-hours trading after reporting first-quarter earnings that beat expectations.
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