Tuesday, Sep 19, 2006

Genentech Announces October 10 Webcast Discussion of Third Quarter Earnings and Other Business Results

South San Francisco, Calif. -- September 19, 2006 --

Genentech, Inc. (NYSE: DNA) will announce its 2006 third quarter earnings on Tuesday, October 10, 2006, after the markets close.

The announcement will be followed by a live webcast at 2:15 p.m. Pacific Time of a discussion by Genentech management of earnings and other business results. 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 October 24, 2006.

A telephonic replay of the webcast will be available beginning at 5:15 p.m. Pacific Time on October 10, 2006 through 5:15 p.m. Pacific Time on October 17, 2006. Access numbers for this replay are: 1-800-642-1687 (U.S./Canada) and 1-706-645-9291 (international); Conference ID number is 5587251.

About Genentech
Founded 30 years ago, 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 and licenses several additional products to other companies. The company has headquarters in South San Francisco, California and is listed 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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