Nanosys files for IPO

April 23, 2004 — Nanosys Inc. (Profile, News, Web), a Palo Alto-based developer of inorganic semiconductor nanocrystals, filed for an initial public offering Thursday, according to its SEC registration statement.

Merrill Lynch, Lehman Brothers, CIBC World Markets and Needham & Co. are underwriting the offering.

Nanosys announced a series of development agreements and new executive and board appointments during the past year. It has raised about $55 million in venture backing since 2001.

The announcement marks the second major news of a nanotech IPO in a week. On April 16, Immunicon Corp. (Nasdaq: IMMC, Web) completed an IPO for $48 million.


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