The top after-market NYSE losers on Thursday are: Kindred Healthcare, World Wrestling Entertainment, Skilled Healthcare, Rehabcare Group, Manitowoc, Ingram Micro, Assured Guaranty, Corning, Cameron International and Gamestop.

Kindred Healthcare, Inc. (NYSE:KND) shares slumped 15.95 in post market trading session. The stock has a 52 week low of $11.50 and 52 week high of $28.99 and has $1.10 billion market capitalization.

World Wrestling Entertainment, Inc. (NYSE:WWE) shares slumped 9.27 percent to $10.37 in aftermarket trading session. The company announced a revised dividend policy to enhance the Company’s financial flexibility and support the “New WWE” initiative. Beginning in June of 2011, the Company’s quarterly dividend will be adjusted to $0.12 per share of common stock held by the Company’s Class A public shareholders.

Skilled Healthcare Group, Inc. (NYSE:SKH) shares declined 7.01 percent to $13.40 in post market trading session.

Rehabcare Group, Inc. (NYSE:RHB) shares declined 7 percent to $36.15 in after market trading session. Its net income rose to $20.8 million or $0.83 per share compared to $15.0 million or $0.61 per share in the same quarter last year. The company has suspended its 2011 outlook due to its pending merger with Kindred Healthcare.

Manitowoc Co, Inc. (NYSE:MTW) shares declined 6.33 percent to $21.00 in aftermarket trading session. Its first quarter net loss widened to $52.4 million or $0.40 per share compared to $23.2 million or $0.18 per share in the same quarter last year.

Ingram Micro Inc. (NYSE:IM) shares declined 5.73 percent to $19.75 in post market trading session as its first quarter net profit fell 20 percent. Net income declined to $56.3 million or $0.34 per share compared to $70.3 million or $0.42 per share in the same quarter last year.

Assured Guaranty Ltd. (NYSE:AGO) shares declined 4.73 percent to $21.14 in post market tradingsession.

Corning Inc. (NYSE:GLW) shares declined 4.04 percent to $20.19 in aftermarket trading session. The company has declared a quarterly dividend on the Company’s common stock of $0.05 per share, payable on June 30, 2011, to holders of record May 31, 2011.

Cameron International Corp. (NYSE:CAM) shares declined 3.91 percent to $50.16 in post market trading session. The company reported first quarter net income of $0.43 per share compared to $0.48 per share in the same quarter last year. Cameron also lowered its 2011 earnings estimates to 2.50 to 2.60 per share from 2.65 to 2.75 per share.

Gamestop Corp. (NYSE:GME) shares declined 3.82 percent to $25.20 in post market trading session.