Shares of First Solar rose 3.2% to $141.36 in premarket trading Wednesday.
Dynegy (DYN) agreed to be bought by Icahn Enterprises for $5.50 a share in cash, or about $665 million.
Dynegy shares rose 2.8% to $5.60 in early trading.
Lexington Realty Trust ( LXP ) said it will sell 10 million common shares in a public offering. Shares of Lexington Realty tumbled 5% to $7.65.
Invesco Mortgage Capital (IVR) plans to make a public offering of 8.7 million common shares. Shares of Invesco fell 4.1% to $22.52.
Yahoo! (YHOO) confirmed Tuesday it is laying off 4% of its work force, eliminating roughly 600 positions. There were no premarket quotes available for Yahoo! Shares of the company settled at $16.63 Tuesday, down 0.4%.
Joy Global (JOYG) topped analysts' estimates by reporting fourth-quarter net income of $146 million, or $1.39 a share, on a sales increase of 9%. Shares of Joy Global rose 5.9% to $84.96 in premarket trading Wednesday.
Novartis (NVS) will acquire the 23% of eye-care company Alcon (ACL) it doesn't already own for $12.9 billion. Novartis shares have risen 8.7% to $60.70 before the market open, while Alcon was up 2.6% to $166.60.
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