Pre-Open Movers 9/13: (RGDX) (EQIX) (LRN) Higher; (PSTI) (FMER) (GWR) Lower (more...)

Response Genetics, Inc (NASDAQ: RGDX) 13% HIGHER ; GSK buys stock

Equinix, Inc. (NASDAQ: EQIX) 13% HIGHER ; Board approves REIT conversion

Pluristem Therapeutics, Inc. (NASDAQ: PSTI) 11% LOWER ; announces equity offering

K12, Inc. (NYSE: LRN) 9% HIGHER ; Posts Surprise Q4 EPS of 5C

Pall Corp. (NYSE: PLL) 9% HIGHER ; Reports Strong Q4 Results and Guidance

FirstMerit Corporation (NASDAQ: FMER) 9% LOWER ; acquires Citizens Republic.

Citizens Republic (NASDAQ: CRBC) 7% HIGHER ; acquired by FirstMerit Corporation

Jive Software, Inc. (NASDAQ: JIVE) 5% HIGHER ; UBS upgrades to Buy

DST Systems, Inc. (NYSE: DST) 5% HIGHER ; CEO McDonnell to Retire; Successor Named

Genesee & Wyoming Inc. (NYSE: GWR) 4% LOWER ; announces a stock offering

HFF, Inc. (NYSE: HF) 4% HIGHER ; being added to S&P SmallCap 600.

Chesapeake Lodging Trust (NYSE: CHSP) 4% LOWER ; stock offering

Cliffs Natural Resources Inc. (NYSE: CLF) 4% HIGHER ; Nomura upgrades to Buy

Pier 1. (NYSE: PIR) 3% HIGHER ; Reports In-Line Q2 EPS; Comps Up 6.7%; Guides FY13 to Low-End of Consensus

DSW (NYSE: DSW) 2% HIGHER ; Declares $2.00 Special Dividend.

SunPower (NASDAQ: SPWR) 2% HIGHER ; extends Toshiba deal by 3 years.

AMD (NYSE: AMD) 2% LOWER; downgraded to Neutral at Citi

Intel (NASDAQ: INTC) 1% LOWER; downgraded to Neutral at Citi

Marvell Technology (NASDAQ: MRVL) 1% LOWER; downgraded to Neutral at Citi

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