NEW YORK (TheStreet) -- Aluminum producer Alcoa (AA) - Get Report was falling 2.8% to $17.27 in premarket trading Tuesday after reporting first-quarter earnings that squeaked past Wall Street expectations by a penny, but its top line missed analysts' estimates.

Oil giant


(BP) - Get Report

was falling 1.8% to $45.83 amid reports that it may be facing a lawsuit of around $10 billion from the management of joint venture


over a violation of their shareholder contract.

Mobile device maker


(NOK) - Get Report

revealed two new smartphone products operating on the updated Symbian software. Nokia was down 0.7% to $8.97.

Consumer giant

Procter & Gamble

(PG) - Get Report

announced a 9% quarterly dividend increase. P&G was down 0.1% to $62.10.

Teva Pharmaceutical

(TEVA) - Get Report

was rising 0.1% to $49.05 as


reported that its experimental oral multiple sclerosis drug reduced the disease's relapse rate by 23% over a placebo in a late stage study.

Santa Clara, Calif.-based mobile networking equipment maker

Extreme Networks

(EXTR) - Get Report

warned of a revenue shortfall

in its fiscal third quarter.

Drug company


(DRRX) - Get Report

said a Phase II clinical trial for its shingles-related, chronic lower back pain treatment Eladur didn't demonstrate a significant improvement for patients compared to a placebo.

Computer hardware company


(HPQ) - Get Report

considered buying

Tibco Software


until two weeks ago when

the talks petered out,


reported, citing two sources familiar with the matter.

Marine dry bulk transportation services provider

Safe Bulkers

(SB) - Get Report

said it plans to offer 5 million common shares, proceeds of which will be used for vessel acquisitions, capital expenditures and other general corporate purposes, including debt repayment.

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-- Written by Andrea Tse in New York.

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