O2Micro (OIIM) filed Tuesday to sell $115 million worth of stock.

The power management and security component maker, based in Santa Clara, Calif., and George Town, Grand Cayman, said it filed a registration statement on Form F-3 with the Securities and Exchange Commission. The company said it proposes to list the ordinary shares offered on the Hong Kong Stock Exchange. In preparation for the proposed offering and Hong Kong listing, O2Micro proposes to effect a share split and establish an American depositary receipt program.

Morgan Stanley is acting as the sole bookrunning manager and Needham & Co. and Piper Jaffray are acting as co-managers.

O2Micro was halted late Monday after falling 15 cents to $13.39.

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