Wednesday, Jan 7, 2004

Genentech Announces Webcast of Presentation at JP Morgan 22nd Annual Healthcare Conference

South San Francisco, Calif. -- January 7, 2004 --

Genentech, Inc. (NYSE:DNA) today announced that Arthur D. Levinson, Ph.D., chairman and chief executive officer, will present at the JP Morgan 22nd Annual Healthcare Conference on Tuesday, January 13, 2004, at 2:30 p.m. PST at the Westin St. Francis Hotel in San Francisco.

Dr. Levinson's presentation will be simultaneously broadcast over the Internet. The presentation is expected to last approximately 30 minutes. The presentation 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. PST on January 20, 2004.

Genentech is a leading biotechnology company that discovers, develops, manufactures and commercializes biotherapeutics for significant unmet medical needs. Sixteen of the currently approved biotechnology products originated from or are based on Genentech science. Genentech manufactures and commercializes 12 biotechnology products in the United States. The company has headquarters in South San Francisco, California 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.