CSR - The U.K.-based maker of Bluetooth devices surged after it rejected an approach by U.S. rival Microchip Technology.
Genesco - The footwear maker fell after posting weaker-than-expected second-quarter earnings and cutting its full-year outlook.
GT Advanced Technologies - The solar and LED-equipment maker fell after Raymond James cut its rating to underperform from market perform.
Johnson & Johnson - The pharmaceutical company edged lower as it recalled some lots of implants used to correct defects of the jaw after more than a dozen cases of injury.
Lannett - The distributor of generic drugs gained after reporting a large rise in quarterly sales.
Lear - The maker of auto seats and electrical-power systems gained after saying it would acquire automotive-leather supplier Eagle Ottawa for $850 million.
Lululemon Athletica - The maker of yoga clothes fell after D.A. Davidson cut the stock to neutral from buy.
OncoMed Pharmaceuticals - The biotechnology company gained after U.S. regulators lifted a partial hold on its cancer-drug trials.
Signet Jewelers - The retailer rose after reporting second-quarter revenue that beat estimates.
Tekmira Pharmaceuticals - The Canadian drug company gained after Daily Mail reported the developer of an Ebola drug was a likely takeover target.
(See CNBC's Market Insider Blog)
—By CNBC's Rich Fisherman.
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