Quarterly report pursuant to Section 13 or 15(d)

CONDENSED STATEMENTS OF CASH FLOWS

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CONDENSED STATEMENTS OF CASH FLOWS (USD $)
In Thousands
 9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Operating activities    
Net income (loss) $ (60,186) $ 55,129
Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities:    
Depreciation and amortization 1,429 924
Stock-based compensation expense 10,127 12,635
Changes in assets and liabilities:    
Accounts receivable 0 (25,000)
Prepaid expenses and other current assets (279) 471
Other assets 185 194
Accounts payable (128) (164)
Accrued compensation (294) (2,653)
Other accrued liabilities (1,861) (1,827)
Deferred rent and other long term liabilities 286 (3,234)
Net cash (used in) provided by operating activities (50,721) 36,475
Investing activities    
Purchases of available-for-sale securities (312,622) (175,005)
Maturities and sales of available-for-sale securities 234,056 148,189
Capital expenditures (2,118) (2,632)
Net cash used in investing activities (80,684) (29,448)
Financing activities    
Payments on capital lease obligations (666) (879)
Net proceeds from issuances of common stock 141,876 1,193
Net cash provided by financing activities 141,210 314
Net increase in cash and cash equivalents 9,805 7,341
Cash and cash equivalents at beginning of period 8,877 14,717
Cash and cash equivalents at end of period 18,682 22,058
Supplemental disclosure of cash flow information    
Interest paid $ 20 $ 70