Repligen Corp. announced Tuesday that it has filed aregistration statement with the Securities and ExchangeCommission for a public offering of 2.5 million shares ofcommon stock. The underwriters are Lehman Brothers,Montgomery Securities and Robertson, Stephens & Co.

Cambridge, Mass.-based Repligen (NASDAQ:RGEN) has grantedthe underwriters an option to purchase up to 375,000additional shares to cover overallotments. Proceeds from theoffering will be spent for clinical trials, R&D efforts,manufacturing scale-up and facilities expansion.

For the second quarter of fiscal 1994 ended Sept. 30, Repligenreported revenues of $6.8 million, expenses of $11.5 millionand losses of $4.7 million. The company's stock closed at $7.5per share on Tuesday, down 75 cents.-- Brenda Sandburg

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