ROSETTA INPHARMATICS –

Kirkland, Wash.

Went public 8/3/2000 at $14 per share

Filing Range: 7.2 mil. shares @ $10 to $12

Shares Outstanding: 30. mil. shares

Underwriters: Lehman Brothers/Lazard Freres & Co. LLC/ Prudential

Vector Healthcare/Fidelity Capital Markets

Company Counsel: Venture Law Group

Manager Counsel: Mintz Levin Cohn Ferris Glovsky & Popeo

Auditor: PricewaterhouseCoopers LLP

The Company:

Develops biochip technology for the analysis of pharmacological data to predict the effects of promising drugs to fight cancer and immunological diseases.

Venture Backers:

Vulcan Ventures Inc.

Olympic Venture Partners

Tredegar Investments

Pequot Capital Management Inc.

Financing Rounds:

Number of Round Amt.

Round # Round Date Stage Investors ($ thousands)

1 04/01/1997 4 Early Stage 17500.1

2 04/01/1999 2 Later Stage 7600.0

3 03/14/2000 4 Later Stage 41581.0

Financials:

(Data in $ millions)

Y/E

12/31/99

Total Revenues: $1.0

Net Income: -19.8