NEW YORK (TheStreet) -- American International Group's (AIG - Get Report) share price gains may hit a ceiling due to risks related to its insurance reserves and investment pressures, Bloomberg reported Goldman Sachs as saying. Meanwhile, Reuters reported that Taiwan's financial regulator has given conditional approval to AIG's $2.2 billion sale of its Nan Shan Life insurance business. AIG shares were up 2.5% to $28.

Energy giant Exxon Mobil ( XOM - Get Report) was rising 1% to $81.54 after Reuters reported that the company purchased privately-held natural gas company Phillips Resources and affiliate TWP for $1.69 billion last week.

Payments company Visa ( V - Get Report) was rising 0.7% to $77.25 after saying that it is buying mobile financial services platform provider Fundamo for about $110 million in cash.

Mobile phone company Nokia ( NOK - Get Report) said Thursday its chief technology officer Richard Green has taken a leave of absence, and according to a Finnish newspaper, he's unlikely to return. Shares were up 0.5% to $6.26.

Citigroup ( C - Get Report) said hackers gained access to the data of hundreds of thousands of its bank card customers, according to a report. Shares were up 0.5% to $36.99.

Novartis ( NVS - Get Report) said a study showed that its Bexsero vaccine can shield toddlers from the most prevalent causes of meningitis. Novartis shares were down 0.5% to $62.21.

Aluminum producer Alcoa ( AA - Get Report) was rising 0.5% to $15.48 after it said it has developed alloys that can significantly lighten the weight of aircrafts.

Private-equity firms Warburg Pincus and TPG Capital are reportedly teaming up for a bid on conglomerate General Electric's ( GE - Get Report) railcar leasing business. GE shares were up 0.4% to $18.58.

Shares of Texas Instruments ( TXN - Get Report) were up 0.2% to $32.74 after the chipmaker cut the low end of its financial outlook for the fiscal second quarter ending this month.

Food company J. M. Smucker ( SJM - Get Report) reported fourth-quarter profit of $1 a share, beating expectations by a penny. Shares were rising 0.2% to $76.50.

Medical technologies developer C. R. Bard ( BCR) has raised its quarterly dividend by 6% to 19 cents a share.

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-- Written by Andrea Tse in New York.

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