KOSAN BIOSCIENCES –

Hayward, Calif.

Went public 10/5/00 at $14 per share

Shares Outstanding:23.8 million shares

Underwriters: Lehman Brothers/CIBC World Markets/SG Cowen Securities/Fidelity Capital Markets

Company Counsel: Wilson Sonsini Goodrich & Rosati

Manager Counsel: Brobeck Phleger & Harrison LLP

Auditor: Ernst & Young LLP

The Company:

Develops new pharmaceuticals through the application of “combinatorial biosynthesis”, the generation of novel analogs of natural products by genetic engineering of biosynthetic pathways.

Venture Backers:

Alta Partners

EuclidSR Partners

Sofinnova Ventures

Walden International Investment Group

Goldman, Sachs & Co.

Burr, Egan, Deleage & Co.

Financing Rounds:

Number of Round Amt.

Round # Round Date Stage Investors ($ thousands)

1 04/01/1996 2 Expansion 3000.0

2 01/03/1997 5 Early Stage 2399.9

3 04/02/1998 8 Expansion 15000.1

4 03/24/2000 8 Expansion 24930.0

Financials:

(Data in $ millions)

Y/E

12/31/99

Total Revenues: $5.3

Net Income: -4.4