Hewlett-Packard Co's said on Monday its board approved to buy back an additional $10 billion in shares to manage dilution created by shares issued under other plans.

HP interim CEO Cathie Lesjak said in a statement HP plans to repurchase at least $3 billion worth of shares in the fiscal fourth quarter.

As of the end of July, HP had repurchased about $2.6 billion of its shares in its fiscal third quarter as part of an $8 billion repurchase plan approved in November 2009. Under that authorization, HP has approximately $4.9 billion remaining to buy back its stock.

Shares of HP rose 2.7 percent to $39.01 in premarket trade after the announcement.

(Reporting by Jennifer Saba, editing by Gerald E. McCormick)

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