The top after-market NYSE gainers Tuesday were National Financial Partners Corp, LIN TV Corp, MagnaChip Semiconductor, AMN Healthcare Services and Unisys Corp. The top after-market NYSE losers were Vaalco Energy, Box Ships, Dole Food Co, Novartis AG and Regional Management Corp.

Gainers

National Financial Partners Corp. (NYSE:NFP) shares climbed 11.42 percent to $22.34 in post-market trading. The New York-based wealth management company has reached out to private equity firms regarding a possible sale Reuters reported citing three people familiar with the matter.

LIN TV Corp. (NYSE:TVL) shares surged 4.04 percent to $10.70 in post-market trading. The stock has a 52-week low of $2.64, a 52-week high of $13.40 and $579.94 million in market capitalization.

MagnaChip Semiconductor Corp. (NYSE:MX) shares rose 3.84 percent to $17.18 in post-market trading. The stock has a 52-week low of $8.38, a 52-week high of $18.25 and $660.02 million in market capitalization.

AMN Healthcare Services Inc. (NYSE:AHS) shares gained 2.77 percent to $15.24 in post-market trading. . The stock has a 52-week low of $4.91, a 52-week high of $15.26 and $658.25 million in market capitalization.

Unisys Corp. (NYSE:UIS) shares advanced 2.64 percent to $23.56 in post-market trading. The stock has a 52-week low of $14.40, a 52-week high of $24.73 and $1.01 billion in market capitalization.

Losers

Vaalco Energy Inc. (NYSE:EGY) shares slumped 7.13 percent to $8.36 in post-market trading. The company stock climbed more than 7.5 percent in regular trading.

Box Ships Inc. (NYSE:TEU) shares declined 6.63 percent to $5.35 in post-market trading. The company announced Tuesday that it intends to offer and sell $25,000,000 of its common shares in an underwritten public offering.

Dole Food Co, Inc. (NYSE:DOLE) shares plunged 6.22 percent to $11.00 in post-market trading. The company said Tuesday that its fourth quarter loss from continuing operations was $88 million or $0.99 per share compared to a net profit of $6 million or $0.06 per share in the same period last year.

Novartis AG (NYSE:NVS) shares lost 4.77 percent to $66.21 in post-market trading. The stock has a 52-week low of $51.20, a 52-week high of $70.24 and $168.31 billion in market capitalization.

Regional Management Corp. (NYSE:RM) shares dipped 1.99 percent to $18.46 in post-market trading. The stock has a 52-week low of $12.84, a 52-week high of $19.35 and $235.25 million in market capitalization.