| Cash Flow | 2026-03-31 | 2025-12-31 | 2025-09-30 | 2025-06-30 |
|---|---|---|---|---|
| Revenue | 305,319 | 300,282 | 285,832 | NaN |
| Adjusted cost of revenue | 111,007 | 110,869 | 106,209 | NaN |
| Adjusted research and development | 29,645 | 26,255 | 26,204 | NaN |
| Adjusted sales and marketing | 70,920 | 67,762 | 63,063 | NaN |
| Adjusted general and administrative | 19,265 | 18,074 | 18,636 | NaN |
| Other segment items | 38,147 | 40,673 | 39,905 | NaN |
| Depreciation and amortization | 17,842 | 16,853 | 15,772 | NaN |
| Interest expense | 3,142 | 3,054 | 3,087 | NaN |
| Gain on early extinguishment of debt | NaN | 0 | 0 | NaN |
| Interest income and other | 5,212 | 6,288 | 5,660 | NaN |
| Provision for income taxes | 2,151 | 3,317 | 643 | NaN |
| Gain on early extinguishment of debt | NaN | 0 | 0 | 0 |
| Net income | 18,412 | 19,713 | 17,973 | 1,730 |
| Depreciation and amortization | 17,842 | 16,853 | 15,772 | 29,139 |
| Reduction in the carrying amount of right-of-use assets | 5,311 | 5,103 | 5,094 | 10,080 |
| Amortization of deferred contract acquisition costs | 23,888 | 22,438 | 22,040 | 41,528 |
| Accretion of discount on marketable investments | 1,233 | 1,234 | 1,333 | 5,325 |
| Provision for credit losses | 365 | 363 | 309 | 945 |
| Deferred taxes - excluding tax adjustments from an acquisition | NaN | NaN | -10 | 33 |
| Stock-based compensation | 32,664 | 33,625 | 33,339 | 81,104 |
| Impairment charge of an equity investment | NaN | 0 | 0 | NaN |
| Amortization of discount and issuance costs on convertible senior notes | 879 | 936 | 934 | 2,680 |
| Impairment charge related to closure of operating lease facilities | NaN | 835 | NaN | NaN |
| Impairment charge of long-lived assets | -699 | NaN | 0 | 835 |
| Interest on finance lease obligations | 187 | 290 | 195 | 548 |
| Deferred taxes - excluding tax benefit from acquisition | 15 | 446 | NaN | NaN |
| Deferred taxes - tax adjustments from an acquisition | NaN | NaN | -524 | NaN |
| Deferred taxes - tax benefit from acquisition | NaN | -524 | NaN | NaN |
| Other | -851 | 114 | -360 | 201 |
| Accounts receivable | 5,923 | -7,139 | 10,961 | 13,608 |
| Prepaid expenses and other current assets | 1,935 | -6,483 | 1,563 | -2,854 |
| Deferred contract acquisition costs | 25,818 | 34,427 | 29,332 | 56,181 |
| Other assets | -3,239 | 15 | -93 | -2,552 |
| Accounts payable | 1,159 | 2,667 | -3,330 | 3,853 |
| Accrued and other current liabilities | -10,990 | 2,373 | 23 | -8,096 |
| Payments of initial direct lease costs | NaN | 0 | 286 | NaN |
| Deferred revenue | 5,607 | 2,556 | 8,008 | -11,522 |
| Cash paid to acquire acqueon inc-Acqueon Inc. | NaN | 0 | 0 | NaN |
| Other liabilities (including non-current portions of operating and finance lease liabilities) | -740 | -1,606 | 1,061 | 497 |
| Cash settlement to acquire aceyus, inc-Aceyus Inc | NaN | 0 | 0 | 0 |
| Net cash provided by operating activities | 63,916 | 83,566 | 59,196 | 83,445 |
| Purchases of marketable investments | 114,064 | 176,228 | 254,004 | 315,146 |
| Proceeds from sales of marketable investments | 58,372 | 13,570 | 23,904 | 90,502 |
| Proceeds from maturities of marketable investments | 70,021 | 182,065 | 179,371 | 442,655 |
| Purchases of property and equipment | 5,265 | 6,241 | 10,504 | 8,218 |
| Capitalization of internal-use software development costs | 9,210 | 10,014 | 10,391 | 18,730 |
| Net cash used in investing activities | -146 | 3,152 | -71,910 | 191,063 |
| Proceeds from issuance of 2029 convertible senior notes | NaN | 0 | 0 | 0 |
| Payment of debt issuance costs | NaN | 0 | 0 | 0 |
| Payments for capped call transactions associated with the 2029 convertible senior notes | NaN | 0 | 0 | 0 |
| Repurchase of a portion of 2025 convertible senior notes | NaN | 0 | 0 | 0 |
| Repayments of outstanding-Convertible Senior Notes Due2023 | NaN | 0 | NaN | NaN |
| Repayment of outstanding 2025 convertible senior notes at maturity | NaN | NaN | 0 | 434,405 |
| Cash received from the settlement at maturity of the outstanding capped calls associated with the 2023 convertible senior notes | NaN | 0 | NaN | NaN |
| Cash received from partial termination of capped calls associated with the 2025 convertible senior notes | NaN | 0 | 0 | 0 |
| Proceeds from sale of common stock under espp | NaN | 4,551 | 0 | 7,921 |
| Repayments of outstanding-Convertible Senior Notes Due2025 | NaN | 434,405 | NaN | NaN |
| Payment of employee taxes related to vested rsus | NaN | 0 | NaN | NaN |
| Proceeds from exercise of common stock options | 445 | 19 | 3,088 | 30 |
| Cash paid for repurchase of the company's common stock | 10,012 | 50,000 | NaN | NaN |
| Payment of holdbacks related to acquisitions | NaN | 0 | NaN | NaN |
| Principal repayment on financing liability | 10,779 | NaN | NaN | NaN |
| Payment of finance lease liabilities | 2,482 | 2,587 | 2,512 | 4,671 |
| Net cash used in financing activities | -22,828 | -48,017 | 576 | -431,125 |
| Net increase in cash, cash equivalents and restricted cash | 40,942 | 38,701 | -12,138 | -156,617 |
| Beginning of period | 38,701 | NaN | 364,185 | NaN |
| End of period | 79,643 | NaN | 195,430 | NaN |
Five9, Inc. (FIVN)
Five9, Inc. (FIVN)