| INSIDER TRANSACTIONS REPORTED - LAST TWO YEARS |
| Date | Insider | Shares | Type | Transaction | Value* | | 5-Aug-08 | VERNON THOMAS MARTIN JR Director | 4,000 | Direct | Disposition (Non Open Market) at $6.60 per share. | $26,400 | | 5-Aug-08 | MEYER F WELLER Director | 7,100 | Indirect | Disposition (Non Open Market) at $6.60 per share. | $46,860 | | 5-Aug-08 | MEYER F WELLER Director | 42,900 | Direct | Disposition (Non Open Market) at $6.60 per share. | $283,140 | | 5-Aug-08 | WILSON RUSSELL P Officer | 26,110 | Direct | Disposition (Non Open Market) at $6.60 per share. | $172,326 | | 5-Aug-08 | GLENN GREGORY M Officer | 83,783 | Direct | Disposition (Non Open Market) at $6.60 per share. | $552,967 | | 5-Aug-08 | ERCK STANLEY C Officer | 25,001 | Direct | Disposition (Non Open Market) at $6.60 per share. | $165,006 | | 5-Aug-08 | DOUGLAS RICHARD Director | 3,461 | Direct | Disposition (Non Open Market) at $6.60 per share. | $22,842 | | 4-Aug-08 | BARRETT M JAMES Director | 6,417,186 | Indirect | Disposition (Non Open Market) at $6.60 per share. | $42,353,427 | | 4-Aug-08 | NEW ENTERPRISE ASSOCIATES 10 L P Beneficial Owner (10% or more) | 6,417,186 | Direct | Disposition (Non Open Market) at $6.60 per share. | $42,353,427 | | 1-Aug-08 | INTERCELL AG Beneficial Owner (10% or more) | 309,004 | Direct | Purchase | N/A | | 30-Jul-08 | ERCK STANLEY C Officer | 130,036 | Direct | Option Exercise at $4.95 - $5.51 per share. | $680,0002 | | 30-Jul-08 | ERCK STANLEY C Officer | 130,036 | Direct | Sale at $6.55 - $6.57 per share. | $853,0002 | | 29-Jul-08 | ERCK STANLEY C Officer | 8,201 | Direct | Option Exercise at $4.95 - $5.51 per share. | $43,0002 | | 29-Jul-08 | ERCK STANLEY C Officer | 8,200 | Direct | Sale at $6.55 per share. | $53,710 | | 29-Jul-08 | WILSON RUSSELL P Officer | 50,000 | Direct | Option Exercise at $4.95 per share. | $247,500 | | 29-Jul-08 | WILSON RUSSELL P Officer | 42,376 | Direct | Sale at $6.51 - $6.56 per share. | $277,0002 | | 28-Jul-08 | GLENN GREGORY M Officer | 47,292 | Direct | Sale at $6.53 - $6.56 per share. | $310,0002 | | 25-Jul-08 | WILSON RUSSELL P Officer | 62,500 | Direct | Option Exercise at $5.51 per share. | $344,375 | | 25-Jul-08 | WILSON RUSSELL P Officer | 55,014 | Direct | Sale at $6.52 - $6.57 per share. | $360,0002 | | 25-Jul-08 | GLENN GREGORY M Officer | 93,750 | Direct | Option Exercise at $4.95 - $5.51 per share. | $490,0002 | | 25-Jul-08 | GLENN GREGORY M Officer | 34,560 | Direct | Sale at $6.55 - $6.57 per share. | $227,0002 | | 12-May-08 | INTERCELL AG Beneficial Owner (10% or more) | 112,981,475 | Indirect | Statement of Ownership | N/A | | 25-Mar-08 | GLENN GREGORY M Officer | 3,500 | Direct | Disposition (Non Open Market) at $0 per share. | N/A | | 1-Feb-08 | GLENN GREGORY M Officer | 4,000 | Direct | Disposition (Non Open Market) at $0 per share. | N/A |
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* = 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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