Genentech Announces April 11 Webcast Discussion of Earnings and Other Business Results

South San Francisco, Calif. -- March 21, 2007 -- Genentech, Inc. (NYSE: DNA) will announce its 2007 first quarter earnings on Wednesday, April 11, 2007, 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 May 2, 2007.

A telephonic replay of the webcast will be available beginning at 5:15 p.m. Pacific Time on April 11, 2007 through 5:15 p.m. Pacific Time on April 18, 2007. Access numbers for this replay are: 1-888-203-1112 (U.S./Canada) and 1-719-457-0820 (international); Conference ID number is?8427457.