By Kate Gibson, MarketWatch
NEW YORK (MarketWatch) — Shares of the following companies were making notable moves in the U.S. stock market on Monday:
American International Group Inc. /zigman2/quotes/203700638/composite AIG +1.13% gained more than 9% after a regulatory filing showed the insurer had signed credit agreements worth $4.3 billion.
A-Power Energy Generation Systems Ltd.’s U.S.-listed shares rose 10.3% after the Chinese provider late Thursday said it received a contract to build a coal-fired plant.
BioSante Pharmaceuticals Inc. rose 27% after the developer of oncology products said in a regulatory filing it extended equity financing with Kingsbridge Capital.
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Education Management Corp. shares gained 7.8%.
Ngas Resources Inc. leaped 40% after the energy-drilling firm agreed to be acquired by Magnum Hunter Resources Corp. for stock valued at 55 cents a share. Shares of Magnum Hunter were up 7.3%.
Sierra Wireless Inc. /zigman2/quotes/206182341/composite SWIR +0.26% shares rose 10.3% after Barron’s called the manufacturer of wireless modems undervalued.
Student Loan Corp. gained 7.8% after it said late Thursday that it had settled class-action suits filed in relation to its merger with Discover Financial Services.
TPC Group Inc. shares gained 9.2% after Oppenheimer & Co. hiked earnings projections for the manufacturer of petrochemical products.
Alimera Sciences Inc. /zigman2/quotes/205266417/composite ALIM +7.40% skidded 9.2% after the biopharmaceutical firm said regulators had declined to approve its treatment for retinal swelling in its current form. Shares of its pSivida Corp. , Alimera’s partner in developing the drug, slumped 18.4%.
H&R Block Inc. /zigman2/quotes/207406664/composite HRB +0.08% declined 7% after the tax-preparation services provider late Friday said HSBC Holdings would not provide funding for its refund-anticipation loans after U.S. regulators objected.
SouFun Holdings Ltd.’s U.S.-listed shares were down 8% after the Chinese operator of home-furnishings sites late Thursday said it would buy a former American International Group Inc. /zigman2/quotes/203700638/composite AIG +1.13% training center in Manhattan for $46 million.
Tesla Motors Inc. /zigman2/quotes/203558040/composite TSLA -0.37% shares were down 15% as a large portion of the electric-car maker’s stock became tradeable as agreements that prevented their sale expired.