Twitter Investor Day

GAAP TO NON-GAAP RECONCILIATIONS In Thousands Cost of Revenue Research & Development Sales & Marketing General & Administrative Cost of Revenue Research & Development Sales & Marketing General & Administrative Fiscal Year Ended December 31, 2013 GAAP $266,718 593,992 316,216 123,795 Stock-based GAAP $309,696 509,828 410,511 134,602 compensation expense $50,942 379,913 114,440 55,072 Nine Months Ended September 30, 2014 Stock-based compensation expense Amortization of acquired intangible assets $37,296 264,784 108,232 44,070 $14,884 300 1,346 Amortization of acquired intangible assets $18,749 792 6,603 Non-GAAP $200,892 213,779 200,430 68,723 Non-GAAP $253,651 244,252 295,676 90,532

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