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Historical Stock Information

Following is a timeline of Genentech stock-related events. Please note that all numbers below relating to the number of shares and price per share of our Common Stock, Redeemable Common Stock and Special Common Stock reflect the number of shares and prices at the time of the event. The numbers provided do not give effect to the 3-for-2 stock split in March 1983 nor the 2-for-1 stock splits in February 1986, February 1987, November 1999, October 2000, and May 2004.

October 14, 1980

Initial Public Offering (IPO)
1,000,000 shares offered at $35.00
Genentech stock trades on NASDAQ under symbol GENE

March 30, 1983

Payable date of 3-for-2 stock split

March 15, 1985

Follow-on Public Offering
1,000,000 shares offered at $45.00

February 28, 1986

Payable date of 2-for-1 stock split

February 27, 1987

Payable date of 2-for-1 stock split

March 2, 1988

Genentech stock begins trading on the NYSE under the symbol GNE

September 7, 1990

Genentech and Roche Merger approved by stockholders
Each share of Genentech Common Stock (CUSIP 368 710 109) is exchanged for $18 in cash plus one-half share of Genentech Redeemable Common Stock (CUSIP 368 710 208)

October 25, 1995

Genentech stockholders approve Roche's extended buyout option
Each share of Genentech Redeemable Common Stock (CUSIP 368 710 208) is exchanged for one share of Genentech Callable Putable Common Stock (also known as Genentech Special Common Stock - CUSIP 368 710 307)

June 14, 1999

Roche exercises its Call Option for all outstanding shares of Genentech Special Common Stock - redemption date set for June 30, 1999

June 16, 1999

Last day of trading of Genentech Special Common Stock

June 30, 1999

Genentech redeems its Special Common Stock
Each share of Genentech Special Common Stock (CUSIP 368 710 307) is exchanged for $82.50 in cash (except for those shares held by Roche)

July 19, 1999

Roche sells shares of Genentech Common Stock in a Public Offering
22,000,000 shares offered at $97.00
Genentech stock begins trading on NYSE on July 20, 1999 under the symbol DNA (CUSIP 368 710 406).

October 20, 1999

Roche sells shares of Genentech Common Stock in a Public Offering
20,000,000 shares offered at $143.50; shares begin trading on NYSE on October 21, 1999.

November 2, 1999

Payable date of 2-for-1 stock split

March 23, 2000

Roche sells shares of Genentech Common Stock in a Public Offering
17,300,000 shares offered at $167.25; shares begin trading on NYSE on March 24, 2000.

October 24, 2000

Payable date of 2-for-1 stock split

May 12, 2004

Payable date of 2-for-1 stock split

March 26, 2009

Roche acquires all of Genentech Common Stock (CUSIP 368 710 406) at $95 per share. Last day of trading of Genentech Common Stock.