Biggest changeBased on our history of losses, we expect to maintain this full valuation allowance for the foreseeable future as it is more likely than not that some or all of those deferred tax assets may not be realized. 48 Table of Contents Results of Operations Year Ended December 31, 2022 2021 2020 (in thousands) Consolidated Statement of Operations Data: Revenue: Products $ 647,535 $ 500,843 $ 382,922 Professional services 37,548 34,561 28,564 Total revenue 685,083 535,404 411,486 Cost of revenue: (1) Products 182,212 140,773 96,864 Professional services 32,137 28,175 24,653 Total cost of revenue 214,349 168,948 121,517 Operating expenses: (1) Research and development 189,970 160,779 108,568 Sales and marketing 307,409 247,453 195,981 General and administrative 84,969 78,289 59,519 Total operating expenses 582,348 486,521 364,068 Loss from operations (111,614) (120,065) (74,099) Interest income 1,813 365 1,454 Interest expense (10,982) (14,292) (24,137) Other income (expense), net (1,522) (1,921) (81) Loss before income taxes (122,305) (135,913) (96,863) Provision for income taxes 2,412 10,421 1,986 Net loss (124,717) (146,334) (98,849) (1) Cost of revenue and operating expenses include stock-based compensation expense and depreciation and amortization expense as follows: Year Ended December 31, 2022 2021 2020 (in thousands) Stock-based compensation expense: Cost of revenue $ 10,367 $ 6,491 $ 4,298 Research and development 49,940 46,622 24,423 Sales and marketing 31,217 23,828 16,826 General and administrative 28,378 25,638 18,341 Total stock-based compensation expense $ 119,902 $ 102,579 $ 63,888 Year Ended December 31, 2022 2021 2020 (in thousands) Depreciation and amortization expense: Cost of revenue $ 26,520 $ 21,484 $ 13,218 Research and development 4,133 3,566 2,844 Sales and marketing 7,742 6,277 4,779 General and administrative 2,643 2,174 1,790 Total depreciation and amortization expense $ 41,038 $ 33,501 $ 22,631 49 Table of Contents The following table sets forth our consolidated statements of operations data expressed as a percentage of revenue: Year Ended December 31, 2022 2021 2020 Consolidated Statement of Operations Data: Revenue: Products 94.5 % 93.5 % 93.1 % Professional services 5.5 6.5 6.9 Total revenue 100.0 100.0 100.0 Cost of revenue: Products 26.6 26.3 23.5 Professional services 4.7 5.3 6.0 Total cost of revenue 31.3 31.6 29.5 Operating expenses: Research and development 27.7 30.0 26.4 Sales and marketing 44.9 46.2 47.6 General and administrative 12.4 14.6 14.5 Total operating expenses 85.0 90.8 88.5 Loss from operations (16.3) (22.4) (18.0) Interest income 0.3 0.1 0.4 Interest expense (1.6) (2.7) (5.9) Other income (expense), net (0.2) (0.4) — Loss before income taxes (17.8) (25.4) (23.5) Provision for income taxes 0.4 1.9 0.5 Net loss (18.2) % (27.3) % (24.0) % Year Ended December 31, 2022 Compared to the Year Ended December 31, 2021 Revenue Year Ended December 31, Change 2022 2021 $ % (dollars in thousands) Products $ 647,535 $ 500,843 $ 146,692 29.3 % Professional services 37,548 34,561 2,987 8.6 Total revenue $ 685,083 $ 535,404 $ 149,679 28.0 % Total revenue increased by $149.7 million in 2022 compared to 2021 and consisted of $133.9 million of organic growth and $15.8 million related to the acquisition of IntSights in July 2021.
Biggest changeBased on our history of losses, we expect to maintain this substantially full valuation allowance for the foreseeable future as it is more likely than not that some or all of those deferred tax assets may not be realized. 49 Ta ble of Contents Results of Operations Year Ended December 31, 2023 2022 2021 (in thousands) Consolidated Statement of Operations Data: Revenue: Products $ 740,168 $ 647,535 $ 500,843 Professional services 37,539 37,548 34,561 Total revenue 777,707 685,083 535,404 Cost of revenue: (1) Products 202,904 182,212 140,773 Professional services 28,837 32,137 28,175 Total cost of revenue 231,741 214,349 168,948 Operating expenses: (1) Research and development 176,776 189,970 160,779 Sales and marketing 312,636 307,409 247,453 General and administrative 84,276 84,969 78,289 Impairment of long-lived assets 30,784 — — Restructuring 22,227 — — Total operating expenses 626,699 582,348 486,521 Loss from operations (80,733) (111,614) (120,065) Interest income 10,177 1,813 365 Interest expense (64,700) (10,982) (14,292) Other income (expense), net (14,522) (1,522) (1,921) Loss before income taxes (149,778) (122,305) (135,913) (Benefit from) provision for income taxes (518) 2,412 10,421 Net loss $ (149,260) $ (124,717) (146,334) (1) Cost of revenue and operating expenses include stock-based compensation expense and depreciation and amortization expense as follows: Year Ended December 31, 2023 2022 2021 (in thousands) Stock-based compensation expense: Cost of revenue $ 10,700 $ 10,367 $ 6,491 Research and development 38,022 49,940 46,622 Sales and marketing 29,325 31,217 23,828 General and administrative 30,034 28,378 25,638 Total stock-based compensation expense $ 108,081 $ 119,902 $ 102,579 Year Ended December 31, 2023 2022 2021 (in thousands) Depreciation and amortization expense: Cost of revenue $ 31,447 $ 26,520 $ 21,484 Research and development 4,217 $ 4,133 3,566 Sales and marketing 7,801 $ 7,742 6,277 General and administrative 2,474 $ 2,643 2,174 Total depreciation and amortization expense $ 45,939 $ 41,038 $ 33,501 50 Ta ble of Contents The following table sets forth our consolidated statements of operations data expressed as a percentage of revenue: Year Ended December 31, 2023 2022 2021 Consolidated Statement of Operations Data: Revenue: Products 95.2 % 94.5 % 93.5 % Professional services 4.8 5.5 6.5 Total revenue 100.0 100.0 100.0 Cost of revenue: Products 26.1 26.6 26.3 Professional services 3.7 4.7 5.3 Total cost of revenue 29.8 31.3 31.6 Operating expenses: Research and development 22.7 27.7 30.0 Sales and marketing 40.2 44.9 46.2 General and administrative 10.8 12.4 14.6 Impairment of long-lived assets 4.0 — — Restructuring 2.9 — — Total operating expenses 80.6 85.0 90.8 Loss from operations (10.4) (16.3) (22.4) Interest income 1.3 0.3 0.1 Interest expense (8.3) (1.6) (2.7) Other income (expense), net (1.9) (0.2) (0.4) Loss before income taxes (19.3) (17.8) (25.4) Provision for income taxes (0.1) 0.4 1.9 Net loss (19.2) % (18.2) % (27.3) % Comparison of the Year Ended December 31, 2023 and 2022 Revenue Year Ended December 31, Change 2023 2022 $ % (dollars in thousands) Revenue: Products $ 740,168 $ 647,535 $ 92,633 14.3 % Professional services 37,539 37,548 (9) — % Total revenue $ 777,707 $ 685,083 $ 92,624 13.5 % Total revenue increased by $92.6 million in 2023 compared to 2022 and consisted of a $2.2 million increase in revenue from new customers and a $90.4 million increase in revenue from existing customers.
We define a customer as any entity that has an active Rapid7 recurring revenue contract as of the specified measurement date, excluding InsightOps and Logentries only customers with a contract value less than $2,400 per year. ARR per Customer . ARR per customer is defined as ARR divided by the number of customers at the end of the period.
We define a customer as any entity that has an active Rapid7 recurring revenue contract as of the specified measurement date, excluding only InsightOps and Logentries customers with a contract value less than $2,400 per year. ARR per Customer . ARR per customer is defined as ARR divided by the number of customers at the end of the period.
Operating Activities Operating activities provided $78.2 million of cash in 2022, which reflects continued growth in revenue partially offset by our continued investments in our operations and a net benefit from changes in working capital items.
Operating activities provided $78.2 million of cash in 2022, which reflects continued growth in revenue partially offset by our continued investments in our operations and a net benefit from changes in working capital items.
Investing Activities Investing activities used $40.0 million of cash in 2022, consisting of $20.4 million in capital expenditures to purchase computer equipment and leasehold improvements, $17.1 million for capitalization of internal-use software costs, $1.5 million of investment purchases, net of sales and maturities, and $1.0 million of other investments.
Investing activities used $40.0 million of cash in 2022, consisting of $20.4 million in capital expenditures to purchase computer equipment and leasehold improvements, $17.1 million for capitalization of internal-use software costs, $1.5 million of investment purchases, net of sales and maturities, and $1.0 million of other investments.
Financing Activities Financing activities provided $7.4 million of cash in 2022, which consisted primarily of $11.9 million in proceeds from the issuance of common stock purchased by employees under the Rapid7, Inc. 2015 Employee Stock Purchase Plan (“ESPP”) and $3.3 million in proceeds from the exercise of stock options, partially offset by $7.5 million in withholding taxes paid for the net share settlement of equity awards and $0.3 million in payments related to the acquisition of Velocidex.
Financing activities provided $7.4 million of cash in 2022, which consisted primarily of $11.9 million in proceeds from the issuance of common stock purchased by employees under the Rapid7, Inc. 2015 Employee Stock Purchase Plan (“ESPP”) and $3.3 million in proceeds from the exercise of stock options, partially offset by $7.5 million in withholding taxes paid for the net share settlement of equity awards and $0.3 million in payments related to the acquisition of Velocidex.
The expense for the amortization of debt discount and debt issuance costs related to our convertible senior notes and revolving credit facility is a non-cash item and we believe the exclusion of this interest expense provides a more useful comparison of our operational performance in different periods. • Induced conversion expense.
The expense for the amortization of debt issuance costs related to our convertible senior notes and revolving credit facility is a non-cash item and we believe the exclusion of this interest expense provides a more useful comparison of our operational performance in different periods. • Induced conversion expense.
Revenue Recognition We generate revenue primarily from: (1) subscriptions from the sale of cloud-based subscriptions, managed services, term software licenses, content subscriptions and maintenance and support associated with our software licenses and (2) professional services from the sale of our deployment and training services related to our solutions, incident response services, penetration testing and security advisory services.
Revenue Recognition We generate revenue primarily from: (1) product subscriptions from the sale of cloud-based subscriptions, managed services, term software licenses, content subscriptions and maintenance and support associated with our software licenses and (2) professional services from the sale of our deployment and training services related to our solutions, incident response services, penetration testing and security advisory services.
We maintain a full valuation allowance for domestic and certain foreign deferred tax assets, including net operating loss carryforwards and tax credits.
We maintain a substantially full valuation allowance for domestic and certain foreign deferred tax assets, including net operating loss carryforwards and tax credits.
Annualized Recurring Revenue (“ARR”) is defined as the annual value of all recurring revenue related to contracts in place at the end of the quarter. ARR should be viewed independently of revenue and deferred revenue as ARR is an operating metric and is not intended to be combined with or replace these items.
Annualized Recurring Revenue (“ARR”) is defined as the annual value of all recurring revenue related to contracts in place at the end of the period. ARR should be viewed independently of revenue and deferred revenue, as ARR is an operating metric and is not intended to be combined with or replace these items.
Our foreseeable cash needs, in 55 Table of Contents addition to our recurring operating expenses, include our expected capital expenditures to support expansion of our infrastructure and workforce, office facilities lease obligations, purchase commitments, including our cloud infrastructure services (including with Amazon Web Services (“AWS”)), potential future acquisitions of technology businesses and any election we make to redeem our convertible senior notes.
Our foreseeable cash needs, in addition to our recurring operating expenses, include our expected capital expenditures to support expansion of our infrastructure and workforce, office facilities lease obligations, purchase commitments, including our cloud infrastructure services (including with Amazon Web Services (“AWS”)), potential future acquisitions of technology businesses and any election we make to redeem our convertible senior notes.
We consider free cash flow to be a liquidity measure that provides useful information to management and investors about the amount of cash generated by the 42 Table of Contents business after necessary capital expenditures. See Non-GAAP Financial Results below for a reconciliation of non-GAAP free cash flow to the comparable GAAP financial measure. Annualized Recurring Revenue and Growth.
We consider free cash flow to be a liquidity measure that provides useful information to management and investors about the amount of cash generated by the business after necessary capital expenditures. See Non-GAAP Financial Results below for a reconciliation of non-GAAP free cash flow to the comparable GAAP financial measure. Annualized Recurring Revenue and Growth.
Recent Accounting Pronouncements See Note 2, Summary of Significant Accounting Policies , in the Notes to our Consolidated Financial Statements in Item 8 of Part II of this Annual Report on Form 10-K for a description of recent accounting pronouncements and our expectation of their impact, if any, on our results of operations and financial conditions. 58 Table of Contents
Recent Accounting Pronouncements See Note 2, Summary of Significant Accounting Policies , in the Notes to our Consolidated Financial Statements in Item 8 of Part II of this Annual Report on Form 10-K for a description of recent accounting pronouncements and our expectation of their impact, if any, on our results of operations and financial conditions.
Our Nexpose, Metasploit and AppSpider products are offered through term software licenses.
Our Nexpose and Metasploit products are offered through term software licenses.
All overhead costs are allocated based on relative headcount. Cost of Products Cost of products consists of personnel and related costs for our content, support, managed service and cloud operations teams, including salaries and other payroll related costs, bonuses, stock-based compensation and allocated overhead costs.
All overhead costs are allocated based on relative headcount. 47 Ta ble of Contents Cost of Products Cost of products consists of personnel and related costs for our content, support, managed service and cloud operations teams, including salaries and other payroll related costs, bonuses, stock-based compensation and allocated overhead costs.
GAAP measures, in evaluating our ongoing operational performance and enhancing an overall understanding of our past financial performance and allowing for greater transparency with respect to metrics used by our management in its financial and operational decision-making.
GAAP 42 Ta ble of Contents measures, in evaluating our ongoing operational performance and enhancing an overall understanding of our past financial performance and allowing for greater transparency with respect to metrics used by our management in its financial and operational decision-making.
We believe that excluding the impact of amortization of acquired intangible assets allows for more meaningful comparisons between operating results from period to period as the intangible assets are valued at the time of acquisition and are amortized over several years after the acquisition. • Amortization of debt discount and issuance costs.
We believe that excluding the impact of amortization of acquired intangible assets allows for more meaningful comparisons between operating results from period to period as the intangible assets are valued at the time of acquisition and are amortized over several years after the acquisition. 43 Ta ble of Contents • Amortization of debt issuance costs.
We periodically review the carrying amount of deferred contract acquisition costs to determine whether events or changes in circumstances have occurred that could impact the period of benefit.
We periodically review the carrying amount of 56 Ta ble of Contents deferred contract acquisition costs to determine whether events or changes in circumstances have occurred that could impact the period of benefit.
Interest Expense Interest expense consists primarily of contractual interest expense, amortization of debt issuance costs related to our convertible senior notes and revolving credit facility and induced conversion expense. We expect interest expense in the near term to represent contractual interest expense and amortization of debt issuance costs related to our convertible senior notes and revolving credit facility.
We expect interest expense in the near term to represent contractual interest expense and amortization of debt issuance costs related to our convertible senior notes and revolving credit facility.
We define adjusted EBITDA as net loss before (1) interest income, (2) interest expense, (3) other income (expense), net, (4) provision for income taxes, (5) depreciation expense, (6) amortization of intangible assets, (7) stock-based compensation expense, (8) acquisition-related expenses and (9) litigation-related expenses.
We define adjusted EBITDA as net loss before (1) interest income, (2) interest expense, (3) other income (expense), net, (4) provision for income taxes, (5) depreciation expense, (6) amortization of intangible assets, (7) stock-based compensation expense, (8) acquisition-related expenses, (9) litigation-related expenses, (10) impairment of long-lived assets and (11) restructuring expense.
Contract costs relating to contract renewals are deferred and amortized on a straight-line basis over the related renewal period. Contract costs for professional services arrangements are expensed as incurred in accordance with the practical expedient as the contractual period of our professional services arrangements are one year or less.
Contract costs relating to contract renewals are deferred and amortized on a straight-line basis over the weighted average contract length of renewal contracts. Contract costs for professional services arrangements are expensed as incurred in accordance with the practical expedient as the contractual period of our professional services arrangements is one year or less.
Our Managed Vulnerability Management, Managed Application Security and Managed Detection and Response products are offered on a managed service basis, generally pursuant to one-year agreements. 41 Table of Contents • Licensed software consists of term licenses. When licensed software is purchased, maintenance and support and content subscriptions, as applicable, are bundled with the license for the term period.
Our Managed Vulnerability Management, Managed Detection and Response, and Managed Application Security products are offered on a managed service basis, pursuant to one or multi-year agreements. • Licensed on-premise software consists of term licenses. When licensed on-premise software is purchased, maintenance and support and content subscriptions, as applicable, are bundled with the license for the term period.
We offer our products through a variety of delivery models to meet the needs of our diverse customer base, including: • Cloud-based subscriptions, which provide our software capabilities to our customers through cloud access and on a subscription basis.
Our Business Model We offer our products through a variety of delivery models to meet the needs of our diverse customer base, including: 41 Ta ble of Contents • Cloud-based subscriptions, which provide our software capabilities to our customers through cloud access and on a subscription basis.
Our actual results may differ from these estimates. Our significant accounting policies, including those considered to be critical accounting estimates are summarized in Note 2, Summary of Significant Accounting Policies , in the Notes to our Consolidated Financial Statements included in this Annual Report on Form 10-K.
Our significant accounting policies, including those considered to be critical accounting estimates are summarized in Note 2, Summary of Significant Accounting Policies, in the Notes to our Consolidated Financial Statements included in this Annual Report on Form 10-K.
We believe that our existing cash and cash equivalents, our investments, our available borrowings under our Credit Agreement and cash generated by operating activities will be sufficient to meet our operating and capital requirements for at least the next 12 months as well as our longer-term expected future cash requirements and obligations.
We believe that our existing cash and cash equivalents, our investments, our available borrowings under our Credit Agreement and cash generated by operating activities will be sufficient to meet our operating and capital requirements for at least the next 12 months.
We expect our gross margins to fluctuate over time depending on the factors described above. 47 Table of Contents Operating Expenses Operating expenses consist of research and development, sales and marketing, and general and administrative expenses. Operating expenses include overhead costs for depreciation, facilities, IT, information security and recruiting.
We expect our gross margins to fluctuate over time depending on the factors described above. Operating Expenses Operating expenses consist of research and development, sales and marketing, general and administrative expenses, impairment of long-lived assets and restructuring. Operating expenses include overhead costs for depreciation, facilities, IT, information security and recruiting.
We define non-GAAP gross profit, non-GAAP income from operations, non-GAAP operating margin, non-GAAP net income (loss) and non-GAAP net income (loss) per share as the respective GAAP balances excluding the effect of stock-based compensation expense, amortization of acquired intangible assets, amortization of debt discount and issuance costs and certain other items such as acquisition-related expenses, litigation-related expenses and induced conversion expense.
We define non-GAAP gross profit, non-GAAP income from operations, non-GAAP operating margin, non-GAAP net income (loss) and non-GAAP net income (loss) per share as the respective GAAP balances excluding the effect of stock-based compensation expense, amortization of acquired intangible assets, amortization of debt issuance costs and certain other items such as acquisition-related expenses, impairment of long-lived assets, Restructuring Expense, induced conversion expense, change in the fair value of derivative assets and litigation-related expenses.
Our InsightIDR, InsightCloudSec, InsightVM, InsightAppSec, InsightConnect and Threat Intelligence products are offered as cloud-based subscriptions, generally with a one-year term. • Managed services, through which we operate our products and provide our capabilities on behalf of our customers.
Our InsightIDR, InsightCloudSec, InsightVM, InsightAppSec, InsightConnect and Threat Command products are offered as cloud-based subscriptions, with an option for a one or multi-year term. • Managed services, through which we operate our products and provide our capabilities on behalf of our customers.
Our customers span a wide variety of industries such as technology, energy, financial services, healthcare and life sciences, manufacturing, media and entertainment, retail, education, real estate, transportation, government and professional services. As of December 31, 2022, we had over 10,000 customers in 146 countries, including 48% of the Fortune 100.
Our customers span a wide variety of industries such as technology, energy, financial services, healthcare and life sciences, manufacturing, media and entertainment, retail, education, real estate, transportation, government and professional services. As of December 31, 2023, we had over 11,500 customers in 151 countries, including 40% of the Fortune 100.
We believe these key metrics are useful to investors both because they allow for greater transparency with respect to key metrics used by management in its financial and operational decision-making and also because they are used by institutional investors and the analyst community to help evaluate the health of our business: Year Ended December 31, 2022 2021 2020 (dollars in thousands) Total revenue $ 685,083 $ 535,404 $ 411,486 Year-over-year growth 28.0 % 30.1 % 25.9 % Non-GAAP income from operations $ 30,386 $ 7,599 $ 2,032 Non-GAAP operating margin 4.4 % 1.4 % 0.5 % Free cash flow $ 40,677 $ 35,053 $ (15,045) As of December 31, 2022 2021 (dollars in thousands) Annualized recurring revenue (“ARR”) $ 714,231 $ 599,020 Year-over-year growth 19.2 % 38.4 % Number of customers 10,929 10,283 Year-over-year growth 6.3 % 18.0 % ARR per customer $ 65.4 $ 58.3 Year-over-year growth 12.2 % 17.3 % Total Revenue and Growth .
We believe these key metrics are useful to investors both because they allow for greater transparency with respect to key metrics used by management in its financial and operational decision-making and also because they are used by institutional investors and the analyst community to help evaluate the health of our business: Year Ended December 31, 2023 2022 2021 (dollars in thousands) Total revenue $ 777,707 $ 685,083 $ 535,404 Year-over-year growth 13.5 % 28.0 % 30.1 % Non-GAAP income from operations $ 102,221 $ 30,386 $ 7,599 Non-GAAP operating margin 13.1 % 4.4 % 1.4 % Free cash flow $ 84,034 $ 40,677 $ 35,053 As of December 31, 2023 2022 (dollars in thousands) Annualized recurring revenue (“ARR”) $ 805,670 $ 714,231 Year-over-year growth 12.8 % 19.2 % Number of customers 11,526 10,929 Year-over-year growth 5.5 % 6.3 % ARR per customer $ 69.9 $ 65.4 Year-over-year growth 7.0 % 12.2 % Total Revenue and Growth .
The $111.4 million increase in revenue from existing customers was due to an increase in revenue from renewals, upsells and cross-sells as a result of our growing base of existing customers. Revenue from new customers represents the revenue recognized from the customer's initial purchase. All renewals, upsells and cross-sells are considered revenue from existing customers.
The $90.4 million increase in revenue from existing customers was due to an increase in revenue from renewals, upsells and cross-sells as a result of the continued growth of our existing customer base. Revenue from new customers represents the revenue recognized from the customer's initial purchase.
These factors were partially offset by a $25.5 million increase in accounts receivable, a $22.5 million increase in deferred contract acquisition and fulfillment costs, a $3.4 million increase in prepaid expenses and other assets and a $2.1 million decrease in accounts payable, which each had a negative impact on operating cash flow.
These factors were offset by an $18.5 million increase in deferred contract acquisition and fulfillment costs, a $14.0 million increase in accounts receivable, a $4.1 million increase in prepaid expenses and a $1.3 million decrease in other liabilities , which each had a negative impact on operating cash flow.
Interest Income Year Ended December 31, Change 2022 2021 $ % (dollars in thousands) Interest income $ 1,813 $ 365 $ 1,448 396.7 % % of revenue 0.3 % 0.1 % Interest income increased by $1.4 million in 2022 compared to 2021 primarily due to an increase in interest rates.
Interest Income Year Ended December 31, Change 2023 2022 $ % (dollars in thousands) Interest income $ 10,177 $ 1,813 $ 8,364 461.3 % % of revenue 1.3 % 0.3 % Interest income increased by $8.4 million in 2023 compared to 2022, primarily due to an increase in interest rates.
Further, stock-based compensation expense has been and will continue to be for the foreseeable future a significant recurring expense in our business and an important part of the compensation provided to our employees. 44 Table of Contents The following tables reconcile GAAP gross profit to non-GAAP gross profit for the years ended December 31, 2022, 2021 and 2020: Year Ended December 31, 2022 2021 2020 (in thousands) GAAP total gross profit $ 470,734 $ 366,456 $ 289,969 Stock-based compensation expense 10,367 6,491 4,298 Amortization of acquired intangible assets 18,493 15,373 8,700 Non-GAAP total gross profit $ 499,594 $ 388,320 $ 302,967 Year Ended December 31, 2022 2021 2020 (in thousands) GAAP gross profit – products $ 465,323 $ 360,070 $ 286,058 Stock-based compensation expense 7,562 4,357 2,740 Amortization of acquired intangible assets 18,493 15,373 8,700 Non-GAAP gross profit – products $ 491,378 $ 379,800 $ 297,498 Year Ended December 31, 2022 2021 2020 (in thousands) GAAP gross profit – professional services $ 5,411 $ 6,386 $ 3,911 Stock-based compensation expense 2,805 2,134 1,558 Non-GAAP gross profit – professional services $ 8,216 $ 8,520 $ 5,469 The following table reconciles GAAP loss from operations to non-GAAP income from operations for the years ended December 31, 2022, 2021 and 2020: Year Ended December 31, 2022 2021 2020 (in thousands) GAAP loss from operations $ (111,614) $ (120,065) $ (74,099) Stock-based compensation expense 119,902 102,579 63,888 Amortization of acquired intangible assets 21,983 17,305 9,138 Acquisition-related expenses — 7,211 1,343 Litigation-related expenses 115 569 1,762 Non-GAAP income from operations $ 30,386 $ 7,599 $ 2,032 45 Table of Contents The following table reconciles GAAP net loss to non-GAAP net income (loss) for the years ended December 31, 2022, 2021 and 2020: Year Ended December 31, 2022 2021 2020 (in thousands, except share and per share data) GAAP net loss $ (124,717) $ (146,334) $ (98,849) Stock-based compensation expense 119,902 102,579 63,888 Amortization of acquired intangible assets 21,983 17,305 9,138 Acquisition-related expenses — 16,176 1,343 Litigation-related expenses 115 569 1,762 Amortization of debt discount and issuance costs 4,085 3,982 17,518 Induced conversion expense — 2,740 — Non-GAAP net income (loss) $ 21,368 $ (2,983) $ (5,200) Interest expense of convertible senior notes (1) 1,500 — — Numerator for non-GAAP earnings per share calculation $ 22,868 $ (2,983) $ (5,200) Weighted average shares used in GAAP earnings per share calculation, basic 58,552,065 55,270,998 51,036,824 Dilutive effect of convertible senior notes (1) 5,803,831 — — Dilutive effect of employee equity incentive plans (2) 1,251,725 — — Weighted average shares used in non-GAAP earnings per share calculation, diluted 65,607,621 55,270,998 51,036,824 Non-GAAP net income (loss) per share: Basic $ 0.36 $ (0.05) $ (0.10) Diluted $ 0.35 $ (0.05) $ (0.10) (1) We use the if-converted method to compute diluted earnings per share with respect to our convertible senior notes.
Further, stock-based compensation expense has been and will continue to be for the foreseeable future a significant recurring expense in our business and an important part of the compensation provided to our employees. 44 Ta ble of Contents The following tables reconcile GAAP gross profit to non-GAAP gross profit for the years ended December 31, 2023, 2022 and 2021: Year Ended December 31, 2023 2022 2021 (in thousands) GAAP total gross profit $ 545,966 $ 470,734 $ 366,456 Stock-based compensation expense 10,700 10,367 6,491 Amortization of acquired intangible assets 18,386 18,493 15,373 Non-GAAP total gross profit $ 575,052 $ 499,594 $ 388,320 Year Ended December 31, 2023 2022 2021 (in thousands) GAAP gross profit – products $ 537,264 $ 465,323 $ 360,070 Stock-based compensation expense 8,202 7,562 4,357 Amortization of acquired intangible assets 18,386 18,493 15,373 Non-GAAP gross profit – products $ 563,852 $ 491,378 $ 379,800 Year Ended December 31, 2023 2022 2021 (in thousands) GAAP gross profit – professional services $ 8,702 $ 5,411 $ 6,386 Stock-based compensation expense 2,498 2,805 2,134 Non-GAAP gross profit – professional services $ 11,200 $ 8,216 $ 8,520 The following table reconciles GAAP loss from operations to non-GAAP income from operations for the years ended December 31, 2023, 2022 and 2021: Year Ended December 31, 2023 2022 2021 (in thousands) GAAP loss from operations $ (80,733) $ (111,614) $ (120,065) Stock-based compensation expense 108,081 119,902 102,579 Amortization of acquired intangible assets 21,499 21,983 17,305 Acquisition-related expenses 363 — 7,211 Litigation-related expenses — 115 569 Impairment of long-lived assets 30,784 — — Restructuring expense 22,227 — — Non-GAAP income from operations $ 102,221 $ 30,386 $ 7,599 45 Ta ble of Contents The following table reconciles GAAP net loss to non-GAAP net (loss) income for the years ended December 31, 2023, 2022 and 2021: Year Ended December 31, 2023 2022 2021 (in thousands, except share and per share data) GAAP net loss $ (149,260) $ (124,717) $ (146,334) Stock-based compensation expense 108,081 119,902 102,579 Amortization of acquired intangible assets 21,499 21,983 17,305 Acquisition-related expenses 363 — 16,176 Litigation-related expenses — 115 569 Amortization of debt issuance costs 4,138 4,085 3,982 Induced conversion expense 53,889 — 2,740 Change in fair value of derivative assets 15,511 — — Impairment of long-lived assets 30,784 — — Restructuring expense 22,227 — — Non-GAAP net (loss) income $ 107,232 $ 21,368 $ (2,983) Interest expense of convertible senior notes (1) 2,667 1,500 — Numerator for non-GAAP earnings per share calculation $ 109,899 $ 22,868 $ (2,983) Weighted average shares used in GAAP earnings per share calculation, basic 60,756,087 58,552,065 55,270,998 Dilutive effect of convertible senior notes (1) 10,429,891 5,803,831 — Dilutive effect of employee equity incentive plans (2) 916,134 1,251,725 — Weighted average shares used in non-GAAP earnings per share calculation, diluted 72,102,112 65,607,621 55,270,998 Non-GAAP net income (loss) per share: Basic $ 1.76 $ 0.36 $ (0.05) Diluted $ 1.52 $ 0.35 $ (0.05) (1) We use the if-converted method to compute diluted earnings per share with respect to our Notes.
The decrease in our net operating assets was primarily due to a $85.6 million increase in deferred revenue due to increased billings, a $19.2 million increase in accrued expenses and a $3.7 million increase in other liabilities, which each had a positive impact on operating cash flow.
The change in our net operating assets and liabilities was primarily due to a $30.5 million increase in deferred revenue due to increased billings and a $5.4 million increase in accounts payable and a $2.4 million increase in accrued expenses, which each had a positive impact on operating cash flow.
The following table reconciles GAAP net loss to adjusted EBITDA for the years ended December 31, 2022, 2021 and 2020: Year Ended December 31, 2022 2021 2020 (in thousands) GAAP net loss $ (124,717) $ (146,334) $ (98,849) Interest income (1,813) (365) (1,454) Interest expense 10,982 14,292 24,137 Other (income) expense, net 1,522 1,921 81 Provision for income taxes 2,412 10,421 1,986 Depreciation expense 13,571 12,342 11,036 Amortization of intangible assets 27,467 21,159 11,595 Stock-based compensation expense 119,902 102,579 63,888 Acquisition-related expenses — 7,211 1,343 Litigation-related expenses 115 569 1,762 Adjusted EBITDA $ 49,441 $ 23,795 $ 15,525 46 Table of Contents The following table reconciles net cash provided by operating activities to free cash flow for the years ended December 31, 2022, 2021 and 2020: Year Ended December 31, 2022 2021 2020 (in thousands) Net cash provided by operating activities $ 78,204 $ 53,917 $ 4,887 Purchases of property and equipment (20,382) (9,010) (13,802) Capitalized internal-use software costs (17,145) (9,854) (6,130) Free cash flow $ 40,677 $ 35,053 $ (15,045) Components of Results of Operations Revenue We generate revenue primarily from selling products and professional services through a variety of delivery models to meet the needs of our diverse customer base.
(2) We use the treasury method to compute the dilutive effect of employee equity incentive plan awards. 46 Ta ble of Contents The following table reconciles GAAP net loss to adjusted EBITDA for the years ended December 31, 2023, 2022 and 2021: Year Ended December 31, 2023 2022 2021 (in thousands) Net loss $ (149,260) $ (124,717) $ (146,334) Interest income (10,177) (1,813) (365) Interest expense 64,700 10,982 14,292 Other (income) expense, net 14,522 1,522 1,921 (Benefit from) provision for income taxes (518) 2,412 10,421 Depreciation expense 14,047 13,571 12,342 Amortization of intangible assets 31,892 27,467 21,159 Stock-based compensation expense 108,081 119,902 102,579 Acquisition-related expenses 363 — 7,211 Litigation-related expenses — 115 569 Impairment of long-lived assets 30,784 — — Restructuring expense 22,227 — — Adjusted EBITDA $ 126,661 $ 49,441 $ 23,795 The following table reconciles net cash provided by operating activities to free cash flow for the years ended December 31, 2023, 2022 and 2021: Year Ended December 31, 2023 2022 2021 (in thousands) Net cash provided by operating activities $ 104,278 $ 78,204 $ 53,917 Less: Purchases of property and equipment (4,366) (20,382) (9,010) Less: Capitalized internal-use software costs (15,878) (17,145) (9,854) Free cash flow $ 84,034 $ 40,677 $ 35,053 Components of Results of Operations Revenue We generate revenue primarily from selling products and professional services through a variety of delivery models to meet the needs of our diverse customer base.
Cash Flows The following table shows a summary of our cash flows for the years ended December 31, 2022, 2021 and 2020: Year Ended December 31, 2022 2021 2020 (in thousands) Cash, cash equivalents and restricted cash at beginning of period $ 165,017 $ 173,617 $ 123,413 Net cash provided by operating activities 78,204 53,917 4,887 Net cash used in investing activities (39,988) (325,378) (156,287) Net cash provided by financing activities 7,416 264,133 200,925 Effects of exchange rates on cash, cash equivalents and restricted cash (2,845) (1,272) 679 Cash, cash equivalents and restricted cash at end of period $ 207,804 $ 165,017 $ 173,617 Uses of Funds Our historical uses of cash have primarily consisted of cash used for operating activities such as expansion of our sales and marketing operations, research and development activities and other working capital needs, as well as cash used for business acquisitions and purchases of property and equipment, including leasehold improvements for our facilities.
If we are unable to raise additional capital on terms satisfactory to us when we require it, our business, operating results and financial condition could be adversely affected. 54 Ta ble of Contents Cash Flows The following table shows a summary of our cash flows for the years ended December 31, 2023 and 2022: Year Ended December 31, 2023 2022 2021 (in thousands) Cash, cash equivalents and restricted cash at beginning of period $ 207,804 $ 165,017 $ 173,617 Net cash provided by operating activities 104,278 78,204 53,917 Net cash used in investing activities (178,754) (39,988) (325,378) Net cash provided by financing activities 79,597 7,416 264,133 Effects of exchange rates on cash, cash equivalents and restricted cash 1,202 (2,845) (1,272) Cash, cash equivalents and restricted cash at end of period $ 214,127 $ 207,804 $ 165,017 Uses of Funds Our historical uses of cash have primarily consisted of cash used for operating activities such as expansion of our sales and marketing operations, research and development activities and other working capital needs, as well as cash used for business acquisitions and purchases of property and equipment, including leasehold improvements for our facilities.
To date, we have financed our operations primarily through private and public equity financings and issuance of convertible senior notes and through cash generated by operating activities.
Our principal sources of liquidity are cash and cash equivalents, investments and our Credit and Security Agreement (the “Credit Agreement”). To date, we have financed our operations primarily through private and public equity financings, issuance of convertible senior notes and through cash generated by operating activities.
Factors that could cause or contribute to these differences include those under “Risk Factors” included in Part I, Item 1A or in other parts of this Annual Report on Form 10-K. Overview Rapid7 is on a mission to create a safer digital world by making cybersecurity simpler and more accessible.
Factors that could cause or contribute to these differences include those under “Risk Factors” included in Part I, Item 1A or in other parts of this Annual Report on Form 10-K.
Cash provided by operating activities reflected our net loss of $146.3 million, offset by a decrease in our net operating assets of $55.0 million and non-cash charges of $145.2 million related primarily to depreciation and amortization, stock-based compensation expense, deferred income taxes, induced conversion expense, amortization of debt issuance costs and other non-cash charges.
Cash provided by operating activities reflected our net loss of $149.3 million and an increase in our net operating assets and liabilities of $0.4 million, offset by non-cash charges of $253.2 million related primarily to depreciation and amortization, stock-based compensation expense, deferred income taxes, impairment of long-lived assets, change in fair value of derivative assets, amortization of debt issuance costs and other non-cash charges.
We exclude induced conversion expense because this amount is not indicative of the performance of, or trends in, our business and is neither comparable to the prior period nor predictive of future results. 43 Table of Contents • Litigation-related expenses.
In conjunction with the third quarter of 2023 partial repurchase of our 2025 Notes, we incurred a non-cash induced conversion expense of $53.9 million. We exclude induced conversion expense because this amount is not indicative of the performance of, or trends in, our business and neither is comparable to the prior period nor predictive of future results. • Litigation-related expenses.
Other Income (Expense), Net Other income (expense), net consists primarily of unrealized and realized gains and losses related to changes in foreign currency exchange rates. Provision for Income Taxes Provision for income taxes consists of income taxes in foreign jurisdictions where we conduct business, withholding taxes, and state income taxes in the United States.
Other Income (Expense), Net Other income (expense), net consists primarily of the change in fair value of derivative assets and unrealized and realized gains and losses related to changes in foreign currency exchange rates. Provision for Income Taxes Provision for income taxes consists of domestic and foreign taxes on income and withholding taxes.
In the event that additional financing is required from outside sources, we may be unable to raise the funds on acceptable terms, if at all. If we are unable to raise additional capital on terms satisfactory to us when we require it, our business, operating results and financial condition could be adversely affected.
In the event that additional financing is required from outside sources, we may be unable to raise the funds on acceptable terms, if at all.
Additional expenses include third-party infrastructure costs, travel and entertainment, consulting and professional fees for third-party development resources as well as allocated overhead costs.
Additional expenses include third-party infrastructure costs, travel and entertainment, consulting and professional fees for third-party development resources as well as allocated overhead costs. We expect research and development expense to decrease as a percentage of total revenue in the near term.
Operating activities provided $4.9 million of cash in 2020, which reflects continued growth in revenue partially offset by our continued investments in our operations and changes in working capital items.
Operating Activities Operating activities provided $104.3 million of cash and cash equivalents for the year ended December 31, 2023, which reflects continued growth in revenue partially offset by our continued investments in our operations and the timing of working capital adjustments.
We believe that both management and investors benefit from referring to these key metrics as supplemental information in assessing our performance and when planning, forecasting, and analyzing future periods. These key metrics also facilitate management's internal comparisons to our historical performance as well as comparisons to certain competitors' operating results.
Key Metrics We monitor the following key metrics to help us measure and evaluate the effectiveness of our operations and as a means to evaluate period-to-period comparisons. We believe that both management and investors benefit from referring to these key metrics as supplemental information in assessing our performance and when planning, forecasting, and analyzing future periods.
Financing activities provided $200.9 million of cash in 2020, which consisted primarily of $222.8 million in proceeds from the issuance of the 2025 Notes, net of issuance costs paid of $7.2 million, $7.8 million in proceeds from the exercise of stock options and $7.1 million in proceeds from the issuance of common stock purchased by employees under the ESPP, partially offset by $27.3 million for the purchase of 2025 Capped Calls, $8.9 million in withholding taxes paid for the net share settlement of equity awards, $0.4 million of payments of debt issuance costs and $0.2 million of deferred consideration payments.
Financing Activities Financing activities provided $79.6 million for the year ended December 31, 2023, which consisted primarily of $292.1 million in proceeds from the issuance of the 2029 Notes, net of issuance costs paid of $7.9 million, $17.5 million in proceeds from the 55 Ta ble of Contents settlement of the 2023 Capped Calls, $11.3 million in proceeds from the issuance of common stock purchased by employees under the Rapid7, Inc. 2015 Employee Stock Purchase Plan (“ESPP”) and $3.1 million in proceeds from the exercise of stock options, partially offset by $200.0 million for the repurchase and conversion of the 2025 Notes, $36.6 million for the purchase of the 2029 Capped Calls, $5.6 million in withholding taxes paid for the net share settlement of equity awards and $2.3 million in payments related to the acquisition of IntSights.
Investing activities used $325.4 million of cash in 2021, consisting of $358.4 million of cash paid for the acquisitions of IntSights, Alcide and Velocidex, net of cash acquired, $9.9 million for capitalization of internal-use software costs, $9.0 million in capital expenditures to purchase computer equipment, furniture and fixtures and leasehold improvements, $3.0 million for other investing activities, partially offset by $54.9 million of investment sales and maturities, net of purchases.
Investing Activities Investing activities used $178.8 million of cash for the year ended December 31, 2023, consisting of $126.4 million in purchases of investments, net of sales and maturities, $34.8 million of cash paid for the acquisition of Minerva, $15.9 million for capitalization of internal-use software costs, $4.4 million in capital expenditures to purchase computer equipment and leasehold improvements, partially offset by $2.7 million in proceeds from other investments.
There was no add-back of interest expense or additional dilutive shares related to the convertible senior notes where the effect was anti-dilutive. On an if-converted basis, for the year ended December 31, 2022, the 2027 convertible senior notes were dilutive and the 2025 convertible senior notes were anti-dilutive.
There was no add-back of interest expense or additional dilutive shares related to the Notes where the effect was anti-dilutive.
We do not adjust for ordinary course legal expenses, including those expenses resulting from maintaining and enforcing our intellectual property portfolio and license agreements. • Acquisition-related expenses. We exclude acquisition-related expenses that are unrelated to the current operations and neither are comparable to the prior period nor predictive of future results.
We do not adjust for ordinary course legal expenses, including legal costs and settlement fees resulting from maintaining and enforcing our intellectual property portfolio and license agreements. • Acquisition-related expenses.
The preparation of our consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, expenses and disclosures. We base our estimates and assumptions on historical experience and other factors that we believe to be reasonable under the circumstances. We evaluate our estimates and assumptions on an ongoing basis.
We base our estimates and assumptions on historical experience and other factors that we believe to be reasonable under the circumstances. We evaluate our estimates and assumptions on an ongoing basis. Our actual results may differ from these estimates.
The increase in total revenue in 2022 was comprised of $108.7 million generated from sales in North America and $41.0 million generated from sales from the rest of the world. 50 Table of Contents Cost of Revenue Year Ended December 31, Change 2022 2021 $ % (dollars in thousands) Products $ 182,212 $ 140,773 $ 41,439 29.4 % Professional services 32,137 28,175 3,962 14.1 Total cost of revenue $ 214,349 $ 168,948 $ 45,401 26.9 % Gross margin %: Products 71.9 % 71.9 % Professional services 14.4 18.5 Total gross margin % 68.7 % 68.4 % Total cost of revenue increased by $45.4 million in 2022 compared to 2021, primarily due to a $18.2 million increase in personnel costs, inclusive of a $3.9 million increase in stock-based compensation expense, resulting from an increase in headcount to support our growing customer base, as well as $1.5 million of additional costs attributable to the employees acquired in the IntSights acquisition in July 2021.
The increase in total revenue in 2023 compared to 2022 was comprised of $65.6 million generated from sales in North America and $27.0 million generated from sales from the rest of the world. 51 Ta ble of Contents Cost of Revenue Year Ended December 31, Change 2023 2022 $ % (dollars in thousands) Cost of revenue: Products $ 202,904 $ 182,212 $ 20,692 11.4 % Professional services 28,837 32,137 (3,300) (10.3) % Total cost of revenue $ 231,741 $ 214,349 $ 17,392 8.1 % Gross margin %: Products 72.6 % 71.9 % Professional services 23.2 % 14.4 % Total gross margin % 70.2 % 68.7 % Total cost of revenue increased by $17.4 million in 2023 compared to 2022, primarily due to a $10.0 million increase in cloud computing costs related to growing cloud-based subscription and managed services revenue, a $4.9 million increase in amortization expense for capitalized internally-developed software, a $2.3 million increase in personnel costs, inclusive of a $0.3 million increase in stock-based compensation expense, and a $0.1 million increase in other expenses.
General and Administrative Expense General and administrative expense consists of personnel costs for our executive, legal, human resources, and finance and accounting departments, including salaries and other payroll related costs, bonuses and stock-based compensation. Additional expenses include travel and entertainment, professional fees, litigation-related expenses, insurance, acquisition-related expenses, amortization of certain intangible assets and allocated overhead costs.
Additional expenses include travel and entertainment, professional fees, litigation-related expenses, insurance, acquisition-related expenses, amortization of certain intangible assets and allocated overhead costs.
Since our inception, we have generated significant losses and expect to continue to generate losses for the foreseeable future and as of December 31, 2022 have an accumulated deficit of $860.7 million. Our principal sources of liquidity are cash and cash equivalents, investments and our Credit and Security Agreement (“Credit Agreement”).
Liquidity and Capital Resources As of December 31, 2023, we had $213.6 million in cash and cash equivalents, $225.7 million in investments that have maturities ranging from one to thirteen months and an accumulated deficit of $1.0 billion. Since our inception, we have generated significant losses and we may generate losses for the foreseeable future.
By continuously improving our technology, stemming the creation of risk in the community, and making security more usable and accessible, Rapid7 aims to close the security achievement gap. We market and sell our products and professional services to organizations of all sizes globally, including mid-market businesses, enterprises, non-profits, educational institutions and government agencies.
Our focus is to be the leading provider of integrated security solutions for the extended SOC by providing risk and threat management within the context of overall security. We market and sell our products and professional services to organizations of all sizes globally, including mid-market businesses, enterprises, non-profits, educational institutions and government agencies.
Operating Expenses Research and Development Expense Year Ended December 31, Change 2022 2021 $ % (dollars in thousands) Research and development $ 189,970 $ 160,779 $ 29,191 18.2 % % of revenue 27.7 % 30.0 % Research and development expense increased by $29.2 million in 2022 compared to 2021, primarily due to a $18.5 million increase in personnel costs, a $8.1 million increase in allocated overhead driven largely by an increase in IT and facilities costs and a $2.6 million increase in other expenses.
Operating Expenses Research and Development Expense Year Ended December 31, Change 2023 2022 $ % (dollars in thousands) Research and development $ 176,776 $ 189,970 $ (13,194) (6.9) % % of revenue 22.7 % 27.7 % Research and development expense decreased by $13.2 million in 2023 compared to 2022, primarily due to a $14.2 million decrease in personnel costs, inclusive of a $11.9 million decrease in stock-based compensation expense, resulting from a decrease in headcount primarily due to the Restructuring Plan, and a $2.5 million decrease in other expenses.
Total gross margin percentage increased slightly in 2022 compared to 2021 due to a higher mix of products revenue as compared to professional services revenue. The gross margin for products remained consistent. The decrease in professional services gross margin was due to an increase in personnel cost inclusive of stock-based compensation expense.
Total gross margin percentage increased in 2023 compared to 2022. The increase in products gross margin was driven by our ability to scale as our revenue continues to grow. The increase in professional services gross margin in 2023 compared to 2022 was primarily due to a decrease in personnel costs.
In 2022, 2021 and 2020 recurring revenue, defined as revenue from term software licenses, content subscriptions, managed services, cloud-based subscriptions and maintenance and support, was 94%, 92% and 90%, respectively, of total revenue. Key Metrics We monitor the following key metrics to help us measure and evaluate the effectiveness of our operations and as a means to evaluate period-to-period comparisons.
Our Managed Threat Complete Offering is offered on a managed service basis, generally pursuant to one or multi-year agreements. In the years ended December 31, 2023, 2022 and 2021, recurring revenue, defined as revenue from term software licenses, content subscriptions, managed services, cloud-based subscriptions and maintenance and support, was 95%, 94% and 92%, respectively, of total revenue.
We therefore believe that we are not materially exposed to any financing, liquidity, market or credit risk that could arise if we had engaged in these relationships. 57 Table of Contents Critical Accounting Estimates Our consolidated financial statements are prepared in accordance with generally accepted accounting principles in the United States (“GAAP”).
In addition, we do not engage in trading activities involving non-exchange traded contracts. We therefore believe that we are not materially exposed to any financing, liquidity, market or credit risk that could arise if we had engaged in these relationships.
Interest Expense Year Ended December 31, Change 2022 2021 $ % (dollars in thousands) Interest expense $ (10,982) $ (14,292) $ 3,310 (23.2) % % of revenue (1.6) % (2.7) % Interest expense decreased by $3.3 million in 2022 compared to 2021 primarily due to a $2.7 million decrease of induced conversion expense incurred in conjunction with the partial repurchase of the 2023 Notes in March 2021 and a decrease in contractual interest expense related to the 2023 Notes which were partially repurchased in the first quarter of 2021, with the remaining amount repurchased in the fourth quarter of 2021.
Interest Expense Year Ended December 31, Change 2023 2022 $ % (dollars in thousands) Interest expense $ (64,700) $ (10,982) $ (53,718) 489.1 % % of revenue (8.3) % (1.6) % Interest expense increased by $53.7 million in 2023 compared to 2022, primarily due to $53.9 million of induced conversion expense incurred in conjunction with the partial repurchase of the 2025 Notes. 53 Ta ble of Contents Other Income (Expense), Net Year Ended December 31, Change 2023 2022 $ % (dollars in thousands) Other income (expense), net $ (14,522) $ (1,522) $ (13,000) 854.1 % % of revenue (1.9) % (0.2) % Other income (expense), net increased by $13.0 million in 2023 compared to 2022, due to a $15.5 million expense for the change in fair value of derivative assets related to our 2023 Capped Calls settlement and a decrease in realized and unrealized foreign currency gains, primarily related to the euro and British pound sterling.
These increases were partially offset by a $2.8 million decrease in bad debt expense. 54 Table of Contents Interest Income Year Ended December 31, Change 2021 2020 $ % (dollars in thousands) Interest income $ 365 $ 1,454 $ (1,089) (74.9) % % of revenue 0.1 % 0.4 % Interest income decreased by $1.1 million in 2021 compared to 2020 primarily due to a decrease in interest rates.
This increase was partially offset by a decrease of $1.7 million in marketing and advertising expenses and a $0.7 million decrease in other expenses. 52 Ta ble of Contents General and Administrative Expense Year Ended December 31, Change 2023 2022 $ % (dollars in thousands) General and administrative $ 84,276 $ 84,969 $ (693) (0.8) % % of revenue 10.8 % 12.4 % General and administrative expense decreased by $0.7 million in 2023 compared to 2022, primarily due to a $2.8 million increase in professional fees, partially offset by a $1.9 million decrease in other expenses.
Sales and Marketing Expense Year Ended December 31, Change 2022 2021 $ % (dollars in thousands) Sales and marketing $ 307,409 $ 247,453 $ 59,956 24.2 % % of revenue 44.9 % 46.2 % Sales and marketing expense increased by $60.0 million in 2022 compared to 2021, primarily due to a $30.4 million increase in personnel costs, a $10.6 million increase in commission expense, a $10.0 million increase in allocated overhead driven largely by an increase in IT and facilities costs, a $3.2 million increase in marketing and advertising costs, a $1.2 million increase in amortization of acquired intangible assets, a $2.5 million increase in travel and entertainment expense and a $2.1 million increase in other expenses.
Sales and Marketing Expense Year Ended December 31, Change 2023 2022 $ % (dollars in thousands) Sales and marketing $ 312,636 $ 307,409 $ 5,227 1.7 % % of revenue 40.2 % 44.9 % Sales and marketing expense increased by $5.2 million in 2023 compared to 2022, primarily due to a $7.6 million increase in personnel costs, net of a $1.7 million decrease in stock-based compensation expense, resulting from a decrease in headcount primarily due to the Restructuring Plan.
Our acquisition-related expenses for the year ended December 31, 2021 include $9.0 million of tax expense related to the sale of acquired intellectual property through an intercompany transaction related to the Alcide acquisition. • Anti-dilutive impact of capped call transaction. Our capped calls transactions are intended to offset potential dilution from the conversion features in our convertible senior notes.
Our capped calls transactions are intended to offset potential dilution from the conversion features in our convertible senior notes.
Provision for Income Taxes Year Ended December 31, Change 2021 2020 $ % (dollars in thousands) Provision for income taxes $ 10,421 $ 1,986 $ 8,435 NM % of revenue 1.9 % 0.5 % Provision for income taxes increased by $8.4 million in 2021 compared to 2020 primarily due to $9.0 million of tax expense recorded for an intercompany sale of intellectual property as part of post-acquisition tax planning related to the Alcide acquisition.
(Benefit From) Provision for Income Taxes Year Ended December 31, Change 2023 2022 $ % (dollars in thousands) (Benefit from) provision for income taxes $ (518) $ 2,412 $ (2,930) (121.5) % % of revenue (0.1) % 0.4 % In 2023, the benefit from income taxes was $0.5 million, primarily due to changes in valuation allowance related to foreign entity deferred tax assets, compared to a provision for income taxes of $2.4 million in 2022.
We expect sales and marketing expense to increase on an absolute dollar basis in the near term as we continue to increase investments to drive our revenue growth, but to decrease as a percentage of total revenue.
We expect sales and marketing expense to decrease as a percentage of total revenue in the near term. General and Administrative Expense General and administrative expense consists of personnel costs for our executive, legal, human resources, and finance and accounting departments, including salaries and other payroll related costs, bonuses and stock-based compensation.
Our revenue was not concentrated with any individual customer and no customer represented more than 1% of our revenue in 2022, 2021 or 2020. Our Business Model We have offerings in six key areas: (1) Incident Detection and Response, (2) Cloud Security, (3) Vulnerability Risk Management, (4) Application Security, (5) Threat Intelligence and (6) Security Orchestration and Automation Response.
Our revenue was not concentrated with any individual customer and no customer represented more than 1% of our revenue for the years ended December 31, 2023, 2022 or 2021.