Take a look at some of Thursday's midday movers:
L Brands - The retailer slid after guiding July comparable sales to low single digits.
Memorial Production Partners - The oil-and-gas exploration company fell after starting an underwritten public offering of 8.6 million units.
Sarepta Therapeutics - Shares fell after Piper Jaffray said company data reinforced its view that additional testing would be needed on its drug to treat Duchenne muscular dystrophy before regulators approve its use.
Tractor Supply - The operator of retail farm and ranch stores declined after forecasting second-quarter results below estimates.
TRW Automotive Holdings - The supplier of auto parts rose after confirming it had received an initial, non-binding proposal to acquire the company. Bloomberg News reported the company had been approached by Germany's ZF Friedrichshafen.
(Read More: See CNBC's Market Insider Blog)
—By CNBC's Rich Fisherman.
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