The companies whose shares are moving in pre-market trade on Wednesday are: Family Dollar Stores, Dell, Comcast, Deere & Co, Teradyne, Advanced Micro Devices, Dean Foods, Airgas and FXCM.

Family Dollar Stores, Inc. (NYSE:FDO) shares climbed 27.96 percent to $56.25 in pre-market trading session after the company confirmed that it has received an unsolicited conditional proposal from billionaire investor Nelson Peltz's Trian Group to acquire FDO at a price in the range of $55 to $60 per share in cash.

Dell Inc. (NASDAQ:DELL) shares surged 6.97 percent to $14.88 in pre-market trading session as its fourth quarter earnings topped Street view. Adjusted profit was $1.02 billion or 53 cents a share, higher than $544 million or 28 cents a share last year. Revenue rose to $15.69 billion from $14.90 billion. Analysts had expected profit of 37 cents a share on revenue of $15.72 billion.

Comcast Corp. (NASDAQ:CMCSA) share gained 4.68 percent to $25.40 in pre-market trading session. The company announced that it increased its planned annual dividend by 19 percent to $0.45 per share.

Deere & Co. (NYSE:DE) shares gained 3.61 percent to $97.00 in pre-market trading session after the company said its first quarter net income more than doubled to $513.7 million or $1.20 per share from $243.2 million or $0.57 per share in the same period last year. The company expects net income of $2.5 billion for the fiscal 2011 against its previous prediction of $2.1 billion.

Teradyne Inc. (NYSE:TER) shares advanced 2.74 percent to $18.36 in pre-market trading session. The stock has gained more than 75 percent in the last 5 months.

Advanced Micro Devices Inc. (NYSE:AMD) shares advanced 2.09 percent to $8.72 in pre-market trading session. The stock has a 52 week low of $5.53 and 52 week high of $10.24 and has $5.86 billion market capitalization.

Dean Foods Co. (NYSE:DF) shares declined 7.05 percent to $9.10 in pre-market trading session. The company swung to fourth quarter loss of $0.11 per share compared to net profit of $0.27 per share in the same period a year-ago.

Airgas, Inc. (NYSE:ARG) shares declined 3.11 percent to $61.75 in pre-market trading session despite the company stocks was upgraded to “buy” rating from “hold” rating at Jefferies.

FXCM Inc. (NYSE:FXCM) shares declined 1.46 percent to $13.50 in pre-market trading session. The company stock was downgraded to a “hold” rating from “buy” rating at Citi.