Thursday, Jun 23, 2005

Genentech Announces June 24 Webcast Discussion of Recent Manufacturing Activities

South San Francisco, Calif. -- June 23, 2005 --

Genentech, Inc. (NYSE: DNA) will provide an update on overall manufacturing activities, including the agreement to acquire Biogen Idec's Oceanside biologics manufacturing facility, on Friday, June 24, 2005, before the markets open.

A press release will be followed by a live webcast at 5:30 a.m. Pacific Time of a discussion by Genentech management on the Oceanside manufacturing facility and Genentech's overall manufacturing activities. The webcast can be accessed on Genentech's web site at http://www.gene.com and will be archived and available for replay until 5:00 p.m. Pacific Time on July 1, 2005.

An audio replay of the webcast will be available beginning at 8:30 a.m. Pacific Time on June 24, 2005 through 8:30 a.m. Pacific Time on July 1, 2005. Access numbers for this replay are: 1-800-642-1687 (U.S./Canada) and 1-706-645-9291 (international); Conference ID number is 7215200.

About Genentech
Genentech is a leading biotechnology company that discovers, develops, manufactures and commercializes biotherapeutics for significant unmet medical needs. A considerable number of the currently approved biotechnology products originated from, or are based on, Genentech science. Genentech manufactures and commercializes multiple biotechnology products directly in the United States, and receives royalties or other income from companies that are licensed to market its products outside of the United States. The company has headquarters in South San Francisco, Calif., and is traded on the New York Stock Exchange under the symbol DNA. For additional information about the company, please visit http://www.gene.com.

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