![LOGO](https://capedge.com/proxy/8-K/0001193125-22-274904/g408297page020.jpg)
Condensed Consolidated Statements of Operations Unaudited (in thousands, except per share amounts) Three Months Ended September 30 Nine Months Ended September 30 2021 2022 2021 2022 Revenue $2,237,432 $2,884,410 $4,459,564 $6,497,454 Costs and expenses: Cost of revenue 311,580 401,149 860,522 1,153,879 Operations and support (1) 228,330 289,946 621,891 781,213 Product development (1) 344,410 366,182 1,057,205 1,104,159 Sales and marketing (1) 290,856 383,165 835,304 1,107,656 General and administrative (1) 210,748 240,435 618,813 694,262 Restructuring charges (1) (465) 52 112,079 89,112 Total costs and expenses 1,385,459 1,680,929 4,105,814 4,930,281 Income from operations 851,973 1,203,481 353,750 1,567,173 Interest income 2,962 58,457 8,956 83,448 Interest expense (6,649) (5,682) (435,080) (18,929) Other income (expense), net 2,172 13,643 (300,054) 13,232 Income (loss) before income taxes 850,458 1,269,899 (372,428) 1,644,924 Provision for income taxes 16,565 55,611 34,107 70,587 Net income (loss) $833,893 $1,214,288 $(406,535) $1,574,337 Net income (loss) per share attributable to Class A and Class B common stockholders: Basic $1.34 $1.90 $(0.67) $2.47 Diluted $1.22 $1.79 $(0.67) $2.31 Weighted-average shares used in computing net income (loss) per share attributable to Class A and Class B common stockholders: Basic 621,012 638,696 611,311 637,485 Diluted 681,916 680,059 611,311 682,791 (1) Includes stock-based compensation expense as follows (in thousands): Three Months Ended September 30 Nine Months Ended September 30 2021 2022 2021 2022 Operations and support $11,162 $17,947 $36,810 $46,556 Product development 131,277 135,905 418,804 398,713 Sales and marketing 23,711 27,446 73,676 77,771 General and administrative 44,689 53,066 143,874 153,344 Restructuring charges (50)—(38) 8 Stock-based compensation expense $210,789 $234,364 $673,126 $676,392 20