The top after-market NYSE gainers Monday were Diana Shipping Inc, Coeur d'Alene Mines Corp, Leapfrog Enterprises Inc, Primero Mining Corp and American Axle & Manufacturing Holdings, Inc. The top after-market NYSE losers were New Mountain Finance Corp, Radioshack Corp, Healthcare Realty Trust Inc, Chiquita Brands International Inc and Enterprise Products Partners L.P.

Gainers

Diana Shipping Inc. (DSX) shares surged 2.33 percent to $6.90 in post-market trading. The company stock plunged more than 3 percent in regular trading.

Coeur d'Alene Mines Corp. (CDE) shares surged 2.32 percent to $28.54 in post-market trading. The company stock plunged more than 4 percent in regular trading.

Leapfrog Enterprises Inc. (LF) shares gained 2.20 percent to $8.35 in post-market trading. The stock has a 52-week low of $2.97, a 52-week high of $12.28 and $548.84 million in market capitalization.

Primero Mining Corp. (PPP) shares advanced 1.78 percent to $5.15 in post-market trading.

American Axle & Manufacturing Holdings, Inc. (AXL) shares rose 1.77 percent to $11.53 in post-market trading.

Losers

New Mountain Finance Corp. (NMFC) shares plunged 3.77 percent to $14.80 in post-market trading. The company announced Monday that it had commenced an underwritten secondary public offering of approximately 4 million shares of its common stock on behalf of a selling stockholder, New Mountain Finance AIV Holdings Corporation.

Radioshack Corp. (RSH) shares plunged 3.59 percent to $2.95 in post-market trading. Levi & Korsinsky announced that a class action lawsuit had been commenced in the U.S. District Court for the Southern District of New York on behalf of the investors who purchased RSH stock between July 26, 2011 and July 24, 2012.

Healthcare Realty Trust Inc. (HR) shares fell 3.35 percent to $23.07 in post-market trading. The company announced Monday that it had commenced an underwritten public offering of 8,000,000 shares of the Company's common stock.

Chiquita Brands International, Inc. (CQB) shares declined 3.14 percent to $7.71 in post-market trading.

Enterprise Products Partners L.P. (EPD) shares fell 3.01 percent to $52.93 in post-market trading. The company announced the commencement of a public offering of 8,000,000 common units representing the limited partner interests in the partnership.

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