The logo of the AIA tower is seen at its entrance in Hong Kong
The logo of the AIA tower is seen at its entrance in Hong Kong July 13, 2010. REUTERS

(Reuters) -- American International Group raised $6 billion through the sale of its stake in AIA Group, a move that allows the U.S. insurer to repay part of its government bailout.

AIG sold 1.72 billion ordinary shares at HK$27.15 each in a block sale to institutional investors.

The U.S. insurer circulated a term sheet on Monday to potential investors, offering the shares at between HK$27.15 to HK$27.50 AIA's shares were last traded at HK$29.20.

AIG expects to use the net proceeds to reduce the balance of the Treasury Department's preferred interest in a special-purpose vehicle that holds the AIA shares. As of last month, those preferred interests were worth about $8.4 billion.

The Treasury also owns 77 percent of AIG's common stock following a massive $182 billion bailout in the wake of the 2008 global financial crisis.

At Friday's close, AIG's one-third stake in AIA was worth $14.9 billion. Following the share sale, the U.S. company will hold about 19 percent of AIA.

(Editing by Michael Flaherty and Muralikumar Anantharaman)