RFID manufacturer files for IPO

Alien Technology, one of the leaders in radio frequency identification chips (RFID), filed a registration statement with the Securities and Exchange Commission, the company said on Thursday. It will try to raise $120 million in the IPO.

Investors have already invested $200 million into the company, a fairly sizeable amount compared to most high tech companies going public in the past few years. The company posted around $20 million in sales in 2005.

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