| INSIDER TRANSACTIONS REPORTED - LAST TWO YEARS |
| Date | Insider | Shares | Type | Transaction | Value* | | 8-Aug-03 | GURWITH, MARC J.
Senior Vice President | 3,000 | Direct | Purchase at $3.54 - $3.55 per share. | $11,0002 | | 3-Jun-03 | DESTEFANO, PAUL J.
| 2,340 | Direct | Planned Sale | $10,4591 | | 28-Feb-03 | FRANCIS, STEPHEN C.
Director | 3,000 | Indirect | Sale at $3.675 per share. | $11,025 | | 28-Jan-03 | VULCAN VENTURES INC.
| 174,682 | Direct | Planned Sale | $2,270,0001 | | 27-Jan-03 | VULCAN VENTURES INC.
| 190,000 | Direct | Planned Sale | $2,327,5001 | | 21-Jan-03 | VULCAN VENTURES INC.
| 200,000 | Direct | Planned Sale | $3,936,0001 | | 13-Jan-03 | VULCAN VENTURES INC.
| 100,000 | Direct | Planned Sale | $1,984,9001 | | 13-Dec-02 | VULCAN VENTURES INC.
| 252,210 | Direct | Planned Sale | $3,281,2521 | | 11-Dec-02 | VULCAN VENTURES INC.
| 100,000 | Direct | Planned Sale | $1,687,0001 | | 4-Dec-02 | VULCAN VENTURES INC.
| 100,000 | Direct | Planned Sale | $1,835,0001 | | 22-Nov-02 | VULCAN VENTURES INC.
| 150,000 | Direct | Planned Sale | $2,697,0001 | | 20-Nov-02 | ALLEN, PAUL G.
Beneficial Owner (10% or more) | 319,100 | Indirect | Sale at $16.735 per share. | $5,340,138 | | 20-Nov-02 | VULCAN VENTURES INC.
| 280,000 | Direct | Planned Sale | $4,656,4001 | | 19-Nov-02 | ALLEN, PAUL G.
Beneficial Owner (10% or more) | 350,000 | Indirect | Sale at $17.509 per share. | $6,128,150 | | 19-Nov-02 | VULCAN VENTURES INC.
| 350,000 | Direct | Planned Sale | $6,200,0001 | | 18-Nov-02 | ALLEN, PAUL G.
Beneficial Owner (10% or more) | 110,900 | Indirect | Sale at $21.575 per share. | $2,392,667 | | 18-Nov-02 | VULCAN VENTURES INC.
| 150,000 | Direct | Planned Sale | $2,940,0001 | | 4-Sep-02 | FRANCIS, STEPHEN C.
Director | 11,000 | Direct | Purchase at $8.88 per share. | $97,680 | | 10-Jul-023 | VULCAN VENTURES INC.
Beneficial Owner (10% or more) | 44,000 | Direct | Sale at $5.96 - $6.06 per share. | $264,0002 | | 25-Jun-02 | VULCAN VENTURES INC.
| 100,000 | Direct | Planned Sale | $648,0001 | | 14-Jun-02 | VULCAN VENTURES INC.
| 100,000 | Direct | Planned Sale | $604,0001 | | 7-Jun-02 | VULCAN VENTURES INC.
| 100,000 | Direct | Planned Sale | $630,0001 | | 28-Jun-023 | VULCAN VENTURES INC.
Beneficial Owner (10% or more) | 270,400 | Direct | Sale at $5.84 - $6.85 per share. | $1,716,0002 | | 31-May-02 | VULCAN VENTURES INC.
| 50,000 | Direct | Planned Sale | $350,0001 | | 31-May-02 | VULCAN VENTURES INC.
Beneficial Owner (10% or more) | 7,700 | Direct | Sale at $7.27 per share. | $55,979 |
|
* = Where indicated, some values are estimates.
1 = Potential proceeds estimated by the filer.
2 = Estimated based on the average of multiple prices reported.
3 = Multiple dates reported. Most recent date shown. |
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1.52% Nasdaq 
Insider Transactions
