ADVANCED ENERGY INDUSTRIES INC 10-K

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA INDEX TO CONSOLIDATED FINANCIAL STATEMENTS ​ ​ Report of Independent Registered Public Accounting Firm (PCAOB ID No. 42 ) 45 Consolidated Balance Sheets 48 Consolidated Statements of Operations 49 Consolidated Statements of Comprehensive Income 50 Consolidated Statements of Stockholders’ Equity 51 Consolidated Statements of Cash Flows 52 Notes to Consolidated Financial Statements 53 ​ ​ ​ 44 Table of Contents Report of Independent Registered Public Accounting Firm ​ To the Stockholders and the Board of Directors of Advanced Energy Industries, Inc. ​ Opinion on the Financial Statements We have audited the accompanying consolidated balance sheets of Advanced Energy Industries, Inc. (the Company) as of December 31, 2023 and 2022, the related consolidated statements of operations, comprehensive income, stockholders’ equity and cash flows for each of the three years in the period ended December 31, 2023, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2023 and 2022, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2023, in conformity with U.S. generally accepted accounting principles. ​ We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework), and our report dated February 20, 2024 expressed an unqualified opinion thereon. Basis for Opinion These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB. We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion. Critical Audit Matter The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of the critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates. ​ 45 Table of Contents ​ ​ ​ ​ ​ Inventory valuation Description of the Matter ​ As more fully described in Notes 1 and 9 to the consolidated financial statements, the Company has inventories with a carrying value of $336.1 million as of December 31, 2023. The Company adjusts its inventory carrying value for estimated excess or obsolescence equal to the difference between the cost of inventory and the estimated net realizable value based on projected customer demand, which is determined by considering historical usage, customer orders and forecast, and qualitative considerations such as market and economic conditions . Auditing management’s inventory valuation was complex and involved a high degree of judgment because a critical factor in determining excess and obsolete inventory requires management to determine projected customer demand, which could be impacted by future market and economic conditions. How We Addressed the Matter in Our Audit ​ We obtained an understanding, evaluated the design and tested the operating effectiveness of internal controls related to the Company’s process for evaluating inventory valuation inclusive of controls related to the development of and management’s review of the underlying data, including historical usage and the estimation of projected customer demand. We evaluated certain inventories for excess or obsolescence by testing key inputs, including historical usage and projected customer demand, and by testing the completeness and accuracy of the underlying data supporting management’s inventory valuation assessment. Specifically, we compared the Company’s projected customer demand to historical sales and inventory usage. We assessed historical trends of management’s estimates and performed analyses to evaluate management’s excess and obsolete inventory estimates and underlying assumptions. We also performed a retrospective review of the prior year valuation assumptions, including inventory write-off history. ​ ​ ​ /s/ Ernst & Young LLP We have served as the Company’s auditor since 2019. Denver, Colorado February 20, 2024 ​ ​ ​ 46 Table of Contents Report of Independent Registered Public Accounting Firm ​ To the Stockholders and the Board of Directors of Advanced Energy Industries, Inc. Opinion on Internal Control Over Financial Reporting We have audited Advanced Energy Industries, Inc.’s internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our opinion, Advanced Energy Industries, Inc. (the Company) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2023, based on the COSO criteria. We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Company as of December 31, 2023 and 2022, the related consolidated statements of operations, comprehensive income, stockholders’ equity and cash flows for each of the three years in the period ended December 31, 2022, and the related notes and our report dated February 20, 2024 expressed an unqualified opinion thereon. Basis for Opinion The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB. We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion. Definition and Limitations of Internal Control Over Financial Reporting A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. /s/ Ernst & Young LLP Denver, Colorado February 20, 2024 ​ 47 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. Consolidated Balance Sheets (In thousands, except per share amounts) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ ​ 2023 2022 ​ ASSETS ​ ​ Current assets: ​ ​ Cash and cash equivalents ​ $ 1,044,556 ​ $ 458,818 ​ Accounts receivable, net ​ 282,430 ​ 300,683 ​ Inventories ​ 336,137 ​ 376,012 ​ Other current assets ​ ​ 48,771 ​ ​ 53,001 ​ Total current assets ​ 1,711,894 ​ 1,188,514 ​ Property and equipment, net ​ 167,665 ​ 148,462 ​ Operating lease right-of-use assets ​ ​ 95,432 ​ ​ 100,177 ​ Other assets ​ 136,448 ​ 84,056 ​ Intangible assets, net ​ 161,478 ​ 189,526 ​ Goodwill ​ 283,840 ​ 281,433 ​ TOTAL ASSETS ​ $ 2,556,757 ​ $ 1,992,168 ​ ​ ​ ​ ​ ​ ​ ​ ​ LIABILITIES AND STOCKHOLDERS’ EQUITY ​ ​ ​ ​ ​ Current liabilities: ​ ​ ​ ​ ​ Accounts payable ​ $ 141,850 ​ $ 170,467 ​ Accrued payroll and employee benefits ​ 73,595 ​ 82,733 ​ Other accrued expenses ​ 66,662 ​ 76,750 ​ Customer deposits and other ​ 15,997 ​ 26,322 ​ Current portion of long-term debt ​ ​ 20,000 ​ ​ 20,000 ​ Current portion of operating lease liabilities ​ ​ 17,744 ​ ​ 16,771 ​ Total current liabilities ​ 335,848 ​ 393,043 ​ Long-term debt, net ​ ​ 895,679 ​ ​ 353,262 ​ Operating lease liabilities ​ ​ 89,330 ​ ​ 94,460 ​ Pension benefits ​ ​ 49,135 ​ ​ 44,031 ​ Other long-term liabilities ​ ​ 42,583 ​ ​ 41,105 ​ Total liabilities ​ 1,412,575 ​ 925,901 ​ ​ ​ ​ ​ ​ ​ ​ ​ Commitments and contingencies (Note 17) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Stockholders' equity: ​ ​ ​ ​ ​ Preferred stock, $ 0.001 par value, 1,000 shares authorized, none issued and outstanding ​ — ​ — ​ Common stock, $ 0.001 par value, 70,000 shares authorized; 37,318 and 37,429 issued and outstanding at December 31, 2023 and December 31, 2022, respectively ​ 37 ​ 37 ​ Additional paid-in capital ​ 148,300 ​ 134,640 ​ Accumulated other comprehensive income ​ 6,114 ​ 16,320 ​ Retained earnings ​ 989,731 ​ 915,270 ​ Total stockholders' equity ​ 1,144,182 ​ 1,066,267 ​ TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY ​ $ 2,556,757 ​ $ 1,992,168 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The accompanying notes are an integral part of these consolidated financial statements. ​ 48 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. Consolidated Statements of Operations (In thousands, except per share amounts) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ ​ 2023 2022 2021 Revenue, net ​ ​ $ 1,655,810 ​ $ 1,845,422 ​ $ 1,455,954 Cost of revenue ​ ​ 1,063,412 ​ 1,169,916 ​ 923,632 Gross profit ​ ​ 592,398 ​ 675,506 ​ 532,322 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Operating expenses: ​ ​ ​ ​ ​ ​ Research and development ​ ​ 202,439 ​ 191,020 ​ 161,831 Selling, general, and administrative ​ ​ 221,034 ​ 218,463 ​ 191,998 Amortization of intangible assets ​ ​ 28,254 ​ 26,114 ​ 22,060 Restructuring, asset impairments, and other charges ​ ​ 26,977 ​ 6,814 ​ 4,752 Total operating expenses ​ ​ 478,704 ​ 442,411 ​ 380,641 Operating income ​ ​ 113,694 ​ 233,095 ​ 151,681 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest income ​ ​ ​ 27,092 ​ ​ 4,147 ​ ​ 454 Interest expense ​ ​ ​ ( 16,566 ) ​ ​ ( 7,325 ) ​ ​ ( 3,576 ) Other income (expense), net ​ ​ ( 1,759 ) ​ 11,824 ​ 152 Income from continuing operations, before income tax ​ ​ 122,461 ​ 241,741 ​ 148,711 Income tax provision (benefit) ​ ​ ( 8,288 ) ​ 39,850 ​ 14,004 Income from continuing operations ​ ​ 130,749 ​ 201,891 ​ 134,707 Income (loss) from discontinued operations, net of income tax ​ ​ ( 2,465 ) ​ ( 2,215 ) ​ 73 Net income ​ ​ $ 128,284 ​ $ 199,676 ​ $ 134,780 Income from continuing operations attributable to noncontrolling interest ​ ​ - ​ 16 ​ 44 Net income attributable to Advanced Energy Industries, Inc. ​ ​ $ 128,284 ​ $ 199,660 ​ $ 134,736 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Basic weighted-average common shares outstanding ​ ​ 37,480 ​ 37,463 ​ 38,143 Diluted weighted-average common shares outstanding ​ ​ 37,750 ​ 37,721 ​ 38,355 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Earnings per share: ​ ​ ​ ​ ​ ​ Continuing operations: ​ ​ ​ ​ ​ ​ Basic earnings per share ​ ​ $ 3.49 ​ $ 5.39 ​ $ 3.53 Diluted earnings per share ​ ​ $ 3.46 ​ $ 5.35 ​ $ 3.51 Discontinued operations: ​ ​ ​ ​ ​ ​ ​ Basic loss per share ​ ​ $ ( 0.07 ) ​ $ ( 0.06 ) ​ $ — Diluted loss per share ​ ​ $ ( 0.07 ) ​ $ ( 0.06 ) ​ $ — Net income: ​ ​ ​ ​ ​ ​ ​ Basic earnings per share ​ ​ $ 3.42 ​ $ 5.33 ​ $ 3.53 Diluted earnings per share ​ ​ $ 3.40 ​ $ 5.29 ​ $ 3.51 ​ The accompanying notes are an integral part of these consolidated financial statements. ​ 49 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. Consolidated Statements of Comprehensive Income (In thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ 2023 2022 2021 Net income ​ $ 128,284 ​ $ 199,676 ​ $ 134,780 Other comprehensive income (loss), net of income tax ​ ​ ​ Foreign currency translation ​ 2,027 ​ ( 10,543 ) ​ ( 12,262 ) Change in fair value of cash flow hedges ​ ( 6,374 ) ​ 9,741 ​ 4,246 Minimum pension benefit retirement liability ​ ( 5,859 ) ​ 18,338 ​ 9,405 Comprehensive income ​ ​ 118,078 ​ ​ 217,212 ​ ​ 136,169 Comprehensive income attributable to noncontrolling interest ​ — ​ 16 ​ 44 Comprehensive income attributable to Advanced Energy Industries, Inc. ​ $ 118,078 ​ $ 217,196 ​ $ 136,125 ​ The accompanying notes are an integral part of these consolidated financial statements. ​ 50 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. Consolidated Statements of Stockholders’ Equity (In thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Advanced Energy Industries, Inc. Stockholders' Equity ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Common Stock ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Accumulated ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Additional ​ Other ​ ​ ​ ​ Non- ​ Total ​ ​ ​ ​ ​ ​ ​ Paid-in ​ Comprehensive ​ Retained ​ controlling ​ Stockholders' ​ ​ Shares ​ Amount ​ Capital ​ Income (Loss) ​ Earnings ​ Interest ​ Equity Balances, December 31, 2020 38,293 ​ $ 38 ​ $ 105,009 ​ $ ( 2,605 ) ​ $ 712,297 ​ $ 601 $ 815,340 Stock issued from equity plans, net ​ 197 ​ — ​ ( 1,931 ) ​ — ​ — ​ — ​ ​ ( 1,931 ) Stock-based compensation ​ — ​ ​ — ​ ​ 15,428 ​ ​ — ​ ​ — ​ ​ — ​ ​ 15,428 Share repurchases ​ ( 901 ) ​ ​ — ​ ​ ( 2,800 ) ​ ​ — ​ ​ ( 75,325 ) ​ ​ — ​ ​ ( 78,125 ) Dividends declared ($ 0.10 per share) ​ — ​ ​ — ​ ​ — ​ ​ ​ ​ ​ ( 15,385 ) ​ ​ ​ ​ ​ ( 15,385 ) Other comprehensive income ​ — ​ — ​ — ​ 1,389 ​ — ​ — ​ ​ 1,389 Net income ​ — ​ — ​ — ​ — ​ 134,736 ​ 44 ​ ​ 134,780 Balances, December 31, 2021 ​ 37,589 ​ ​ 38 ​ ​ 115,706 ​ ​ ( 1,216 ) ​ ​ 756,323 ​ ​ 645 ​ ​ 871,496 Stock issued from equity plans, net ​ 196 ​ ​ — ​ ​ ( 26 ) ​ ​ — ​ ​ — ​ ​ — ​ ( 26 ) Stock-based compensation ​ — ​ ​ — ​ ​ 19,624 ​ ​ — ​ ​ — ​ ​ — ​ 19,624 Share repurchases ​ ( 356 ) ​ ​ ( 1 ) ​ ​ ( 1,125 ) ​ ​ — ​ ​ ( 25,509 ) ​ ​ — ​ ​ ( 26,635 ) Dividends declared ($ 0.10 per share) ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ ( 15,204 ) ​ ​ — ​ ​ ( 15,204 ) Other comprehensive income ​ — ​ ​ — ​ ​ — ​ ​ 17,536 ​ ​ — ​ ​ — ​ 17,536 Acquisition of non-controlling interest ​ — ​ ​ — ​ ​ 461 ​ ​ — ​ ​ — ​ ​ ( 661 ) ​ ​ ( 200 ) Net income ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 199,660 ​ ​ 16 ​ 199,676 Balances, December 31, 2022 ​ 37,429 ​ ​ 37 ​ ​ 134,640 ​ ​ 16,320 ​ ​ 915,270 ​ ​ — ​ ​ 1,066,267 Stock issued from equity plans, net ​ 267 ​ ​ 1 ​ ​ ( 80 ) ​ ​ — ​ ​ — ​ ​ — ​ ( 79 ) Stock-based compensation ​ — ​ ​ — ​ ​ 29,314 ​ ​ — ​ ​ — ​ ​ — ​ 29,314 Share repurchases ​ ( 378 ) ​ ​ ( 1 ) ​ ​ ( 1,530 ) ​ ​ — ​ ​ ( 38,601 ) ​ ​ — ​ ​ ( 40,132 ) Dividends declared ($ 0.10 per share) ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ ( 15,222 ) ​ ​ — ​ ​ ( 15,222 ) Other comprehensive income ​ — ​ ​ — ​ ​ — ​ ​ ( 10,206 ) ​ ​ — ​ ​ — ​ ( 10,206 ) Warrants and note hedges, net ​ — ​ ​ — ​ ​ ( 40,135 ) ​ ​ — ​ ​ — ​ ​ — ​ ​ ( 40,135 ) Tax impact of convertible notes and note hedges ​ — ​ ​ — ​ ​ 26,091 ​ ​ — ​ ​ — ​ ​ — ​ ​ 26,091 Net income ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 128,284 ​ ​ — ​ 128,284 Balances, December 31, 2023 ​ 37,318 ​ $ 37 ​ $ 148,300 ​ $ 6,114 ​ $ 989,731 ​ $ — ​ $ 1,144,182 ​ The accompanying notes are an integral part of these consolidated financial statements. ​ 51 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. Consolidated Statements of Cash Flows (In thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ 2023 2022 2021 CASH FLOWS FROM OPERATING ACTIVITIES: ​ ​ ​ Net income ​ $ 128,284 ​ $ 199,676 ​ $ 134,780 Less: income (loss) from discontinued operations, net of income tax ​ ( 2,465 ) ​ ( 2,215 ) ​ 73 Income from continuing operations, net of income tax ​ 130,749 ​ 201,891 ​ 134,707 Adjustments to reconcile net income to net cash from operating activities: ​ ​ ​ Depreciation and amortization ​ 66,533 ​ 60,296 ​ 52,893 Stock-based compensation ​ 31,001 ​ 19,849 ​ 15,739 Deferred income tax provision (benefit) ​ ( 33,940 ) ​ ( 5,736 ) ​ 1,326 (Gain) loss from discount on notes receivable ​ ​ — ​ ​ — ​ ​ ( 638 ) Loss (gain) on disposal and sale of assets ​ 439 ​ ( 3,962 ) ​ 1,496 Changes in operating assets and liabilities, net of assets acquired ​ ​ ​ ​ Accounts receivable, net ​ 23,282 ​ ( 59,630 ) ​ 5,271 Inventories ​ 39,300 ​ ( 32,244 ) ​ ( 115,737 ) Other assets ​ 5,015 ​ ( 19,673 ) ​ ( 2,910 ) Accounts payable ​ ( 26,080 ) ​ ( 28,703 ) ​ 67,111 Other liabilities and accrued expenses ​ ( 23,374 ) ​ 51,643 ​ ( 18,344 ) Net cash from operating activities from continuing operations ​ 212,925 ​ 183,731 ​ 140,914 Net cash from operating activities from discontinued operations ​ ( 3,988 ) ​ ( 144 ) ​ ( 669 ) Net cash from operating activities ​ 208,937 ​ 183,587 ​ 140,245 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ CASH FLOWS FROM INVESTING ACTIVITIES: ​ ​ ​ Purchases of long-term investments ​ ​ ( 3,746 ) ​ ​ — ​ ​ — Proceeds from the sale of assets ​ ​ — ​ ​ — ​ ​ 3,050 Purchases of property and equipment ​ ( 61,005 ) ​ ( 58,885 ) ​ ( 28,817 ) Acquisitions, net of cash acquired ​ ​ — ​ ​ ( 149,387 ) ​ ​ ( 21,535 ) Net cash from investing activities ​ ( 64,751 ) ​ ( 208,272 ) ​ ( 47,302 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ CASH FLOWS FROM FINANCING ACTIVITIES: ​ ​ ​ Proceeds from long-term borrowings ​ ​ 575,000 ​ ​ — ​ ​ 85,000 Payment of fees for long-term borrowings ​ ​ ( 13,880 ) ​ ​ — ​ ​ ( 1,350 ) Payments on long-term borrowings ​ ​ ( 20,000 ) ​ ​ ( 20,000 ) ​ ​ ( 13,750 ) Dividend payments ​ ​ ( 15,222 ) ​ ​ ( 15,204 ) ​ ​ ( 15,385 ) Payment for purchase of note hedges ​ ​ ( 115,000 ) ​ ​ — ​ ​ — Proceeds from sale of warrants ​ ​ 74,865 ​ ​ — ​ ​ — Purchase and retirement of common stock ​ ​ ( 40,000 ) ​ ​ ( 26,635 ) ​ ​ ( 78,125 ) Net payments related to stock-based awards ​ ( 79 ) ​ ( 26 ) ​ ( 1,762 ) Net cash from financing activities ​ 445,684 ​ ( 61,865 ) ​ ( 25,372 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ EFFECT OF CURRENCY TRANSLATION ON CASH AND CASH EQUIVALENTS ​ ( 4,132 ) ​ 996 ​ ( 3,567 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ NET CHANGE IN CASH AND CASH EQUIVALENTS ​ 585,738 ​ ( 85,554 ) ​ 64,004 CASH AND CASH EQUIVALENTS, beginning of period ​ 458,818 ​ 544,372 ​ 480,368 CASH AND CASH EQUIVALENTS, end of period ​ $ 1,044,556 ​ $ 458,818 ​ $ 544,372 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION: ​ ​ ​ Cash paid for interest ​ $ 14,429 ​ $ 6,608 ​ $ 4,040 Cash paid for income taxes ​ $ 47,937 ​ $ 17,546 ​ $ 32,543 ​ The accompanying notes are an integral part of these consolidated financial statements. ​ ​ ​ 52 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (in thousands, except per share amounts) NOTE 1. SUMMARY OF OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES AND ESTIMATES Advanced Energy Industries, Inc., a Delaware corporation, and its consolidated subsidiaries (“we,” “us,” “our,” “Advanced Energy,” or the “Company”) provides highly engineered, critical, precision power conversion, measurement, and control solutions to our global customers. We design, manufacture, sell and support precision power products that transform, refine, and modify the raw electrical power coming from either the utility or the building facility and convert it into various types of highly controllable, usable power that is predictable, repeatable, and customizable to meet the necessary requirements for powering a wide range of complex equipment. Many of our products enable customers to reduce or optimize their energy consumption through increased power conversion efficiency, power density, power coupling, and process control across a wide range of applications . In December 2015, we completed the wind down of engineering, manufacturing, and sales of our solar inverter product line. We have continuing involvement with regard to certain warranty obligations. Accordingly, the results of our inverter business are reflected as income (loss) from discontinued operations, net of income taxes on our Consolidated Statements of Operations. Principles of Consolidation Our consolidated financial statements include the Company and its subsidiaries. All intercompany accounts and transactions have been eliminated. Our consolidated financial statements are stated in United States (“U.S.”) Dollars and have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”). We reclassified certain prior period amounts to conform to the current year presentation. Use of Estimates in the Preparation of the Consolidated Financial Statements The preparation of our consolidated financial statements in conformity with U.S. GAAP requires us to make estimates, assumptions, and judgments that affect the reported amounts of assets and liabilities, the disclosure of contingent liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting period. The significant estimates, assumptions, and judgments include, but are not limited to: ● excess and obsolete inventory; ● income taxes and other provisions; and ● acquisitions and asset valuations ​ Segment Information Our Chief Executive Officer is the chief operating decision maker who reviews financial information on a consolidated basis for purposes of allocating resources and evaluating financial performance. Accordingly, we determined we operate in a single reporting segment. Foreign Currency Translation The functional currency of certain of our foreign subsidiaries is the local currency. Assets and liabilities of these foreign subsidiaries are translated to the United States Dollar at prevailing exchange rates on the balance sheet date. Revenues and expenses are translated at the average exchange rates in effect for each period. Translation adjustments resulting from this process are reported as a separate component of other comprehensive income. 53 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) For certain other subsidiaries, the functional currency is the U.S. Dollar. Foreign currency transactions are recorded based on exchange rates at the time such transactions arise. Subsequent changes in exchange rates for foreign currency denominated monetary assets and liabilities result in foreign currency transaction gains and losses, which are reflected as unrealized (based on period end remeasurement) or realized (upon settlement of the transactions) in other income (expense), net in our Consolidated Statements of Operations. Derivatives We use derivative financial instruments to manage risks associated with foreign currency and interest rate fluctuations. Unless we meet specific hedge accounting criteria, changes in the fair value of derivative financial instruments are recognized in the Consolidated Statements of Operations within other income (expense), net. For derivatives designated as cash flow hedges, changes in fair value are recorded to accumulated other comprehensive income (loss) on the Consolidated Balance Sheets and are reclassified into earnings when the underlying forecasted transaction is settled. We reassess the probability of the underlying forecasted transactions occurring on a quarterly basis. Fair Value We value certain financial assets and liabilities using fair value measurements. U.S. GAAP for fair value establishes a hierarchy that prioritizes fair value measurements based on the types of inputs used for the various valuation techniques (market approach, income approach, and cost approach). Our financial assets and liabilities are measured using inputs from the three levels of the fair value hierarchy. The three levels of the hierarchy and the related inputs are as follows: ● Level 1 — Quoted prices (unadjusted) in active markets for identical assets or liabilities that the entity can access on the measurement date. ● Level 2 — Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. ● Level 3 — Unobservable inputs for the asset or liability. We categorize fair value measurements within the fair value hierarchy based upon the lowest level of the most significant inputs used to determine fair value. Our assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of the fair value of assets and liabilities and their placement within the fair value hierarchy levels. 54 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) We have various assets and liabilities measured at fair value on a recurring basis, including: ​ ​ ​ ​ ​ ​ ​ Category of Asset or Liability ​ Fair Value Hierarchy ​ Methodology Certificates of deposit ​ ​ ​ Level 2 ​ Observable market data for similar assets Foreign currency forward contracts ​ ​ Level 2 ​ Forecasted movement in the forward rates of foreign currency for the applicable duration in which the hedging instrument is denominated Interest rate swaps ​ ​ Level 2 ​ Estimated net present value of the expected cash flows based on market rates and the associated yield curves, adjusted for non-performance credit risk, as applicable Pension benefit obligations ​ ​ Level 2 ​ Actuarial analysis, which includes various estimates and assumptions including, but not limited to, discount rates, expected return on plan assets, and future inflation rates ​ The carrying amounts of our cash and cash equivalents, accounts receivable, accounts payable and other current assets and liabilities approximate fair value as recorded due to the short-term nature of these instruments. Our non-financial assets, which primarily consist of property and equipment, operating lease right-of-use assets, goodwill, and other intangible assets, are not required to be carried at fair value on a recurring basis and are reported at carrying value. However, on a periodic basis or whenever events or changes in circumstances indicate that their carrying value may not be fully recoverable (and at least annually for goodwill), non-financial instruments are assessed for impairment and, if applicable, written down to and recorded at fair value. See Note 11. Intangible Assets and Goodwill for further discussion and presentation of these amounts. Cash, Cash Equivalents, and Marketable Securities We consider all amounts on deposit with financial institutions and highly liquid investments with an original maturity of three months or less at the time of purchase to be cash equivalents. Cash and cash equivalents consist primarily of short-term money market instruments and demand deposits with insignificant interest rate risk. In some instances, we invest excess cash in money market funds not insured by the Federal Deposit Insurance Corporation. The investments in money market funds are on deposit with credit-worthy financial institutions and the funds are highly liquid. These investments are reported at fair value and included in cash and cash equivalents. We classify investments with stated maturities of greater than three months at time of purchase in other current assets on the Consolidated Balance Sheets. Concentrations of Credit Risk Financial instruments with potential credit risk include cash and cash equivalents and trade accounts receivable. To preserve capital and maintain liquidity, we invest with financial institutions we deem to be of high quality and sound financial condition. Our investments are in low-risk instruments, and we limit our credit exposure in any one institution or type of investment instrument based upon criteria, including creditworthiness. 55 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) Allowance for Credit Losses We evaluate collection risk and establish expected credit loss primarily through a combination of the following: continuous monitoring of customer credit, analysis of historical aging and credit loss experience, current economic conditions, and customer specific information. Our standard payment terms are net 30 days. Certain large volume customers have longer payment terms. Generally, we do not require collateral from customers. Inventories We value inventories at the lower of cost or net realizable value, computed on a first-in, first-out basis. General market conditions, as well as our design activities, can cause certain products to become obsolete and we adjust our inventory carrying value for estimated excess and obsolescence equal to the difference between the cost of inventory and the estimated net realizable value based on projected end-user demand, which is determined by considering historical usage, customer orders and forecast, and qualitative considerations such as market and economic conditions. The determination of projected end-user demand requires the use of estimates and assumptions related to projected unit sales for each product. Demand for our products can fluctuate significantly. A significant decrease in demand could result in an increase in the charges for excess inventory quantities on hand. Property and Equipment Property and equipment are stated at cost or estimated fair value if acquired in a business combination. We compute depreciation over the estimated useful lives using the straight-line method. Additions and improvements are capitalized, while maintenance and repairs are expensed as incurred. We evaluate the useful life and test for impairment whenever events or changes in circumstances indicate the carrying amount of an asset group containing the property and equipment may not be recoverable. When depreciable assets are retired, or otherwise disposed of, the cost and related accumulated depreciation are removed from the accounts, and any related gains or losses are included in other income (expense), net, in our Consolidated Statements of Operations. Internal-Use Software Development Costs We capitalize qualifying costs associated with software applications developed for internal use. We begin capitalization after meeting two criteria: (i) the preliminary project stage is completed and (ii) it is probable that the software will be completed and used for its intended function. We also capitalize costs related to specific upgrades and enhancements when it is probable the expenditures will result in significant additional functionality. We cease capitalization when the software is substantially complete and ready for its intended use, including the completion of all significant testing. Costs related to preliminary project activities, post-implementation operating activities, maintenance, and minor upgrades are expensed as incurred. We classify capitalized software development costs within property and equipment, net and other assets on the Consolidated Balance Sheets. These costs are amortized on a straight-line basis over the software’s estimated useful life. Amortization is included in both cost of revenue and operating expenses. We evaluate the useful life and test for impairment whenever events or changes in circumstances indicate the carrying amount may not be recoverable. 56 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) Leases We lease manufacturing and office space under non-cancelable operating leases. Some of these leases contain provisions for landlord funded leasehold improvements, which we record as a reduction to right-of-use (“ROU”) assets and the related operating lease liabilities. Our lease agreements generally contain lease and non-lease components, and we combine fixed payments for non-lease components with lease payments and account for them together as a single lease component. Certain lease agreements may contain variable payments, which are expensed as incurred and not included in the right-of-use lease assets and operating lease liabilities. When renewal options are reasonably certain of exercise, we include the renewal period in the lease term. In many cases, we have leases with a term of less than one year. We elected the practical expedient to exclude these short-term leases from our ROU assets and operating lease liabilities. On an ongoing basis, we negotiate and execute new leases to meet business objectives. Right-of-use assets and operating lease liabilities are recognized at the present value of the future lease payments on the lease commencement date. The interest rate used to determine the present value of the future lease payments is our incremental borrowing rate because the interest rate implicit in our leases is not readily determinable. Our incremental borrowing rate is estimated to approximate the interest rate on a collateralized basis with similar terms and payments. We have a centrally managed treasury function; therefore, we apply a portfolio approach for determining the incremental borrowing rate applicable to the lease term. Operating lease expense is recognized on a straight-line basis over the lease term. We evaluate the useful life and test for impairment whenever events or changes in circumstances indicate the carrying amount of an asset group containing the right-of-use assets may not be recoverable. Goodwill and Intangible Assets Goodwill represents the excess of the purchase price over the fair value of the identifiable net assets acquired in a business combination. We evaluate goodwill for impairment as a single reporting unit annually during the fourth quarter or when events or changes in circumstances indicate the carrying value may not be recoverable. Our goodwill impairment evaluation consists of a qualitative assessment. If this assessment indicates it is more likely than not that the Company’s estimated fair value exceeds the carrying value of our net assets, we do not consider goodwill to be impaired. Otherwise, we perform a quantitative assessment by comparing the Company’s fair value to the carrying value of our net assets, including goodwill. If the carrying value of our net assets exceeds the fair value, we consider goodwill to be impaired. Based on the facts and circumstances, we determine the fair value based on an income, market, or cost approach. Each method is subjective in nature and involves the use of significant estimates and assumptions, which can include projected financial results, discount rates, long-term growth rates, and industry trends. Our intangible assets consist of customer relationships, developed technology, trademarks, patents, and intellectual property, which are stated at cost less accumulated amortization. Intangible assets, which are considered long-lived assets, are amortized over their estimated useful lives and reviewed for impairment when events or changes in circumstances indicate that the carrying amount of an asset group containing these assets may not be recoverable. 57 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) Debt Issuance Costs We capitalize costs associated with issuing debt. Depending on the nature of the agreement, we record these costs on the Consolidated Balance Sheets either in other assets or as a direct deduction from the carrying amount of the debt. We amortize the costs over the term of the agreement using the effective interest method. Amortization expense is reflected within interest expense on the Consolidated Statements of Operations. See Note 18. Long-Term Debt for additional details. Revenue Recognition Net revenue consists of products and support services. We recognize substantially all revenue at a point in time when we satisfy our performance obligations. Typically, this occurs on shipment of goods because, at that point, we transfer control to our customer. The transaction price is based upon the standalone selling price. In most transactions, we have no obligations to our customers after the date products are shipped, other than pursuant to warranty obligations. We recognize revenue net of any taxes collected from customers, which are subsequently remitted to governmental authorities. Surcharges, cost recoveries, and shipping and handling fees billed to customers, if any, are recognized as revenue. The related cost for shipping and handling fees is recognized in cost of revenue. Support services include warranty and non-warranty repair services, upgrades, and refurbishments on the products we sell. Repairs covered under our standard warranty do not generate revenue. We recognize substantially all non-warranty revenue upon completion of the service because that is the point in time when we satisfy our performance obligation. As part of our ongoing service business, we satisfy our service obligations under preventative maintenance contracts and extended warranties. Up-front fees received for extended warranties or maintenance plans are deferred and recorded in customer deposits and other on the Consolidated Balance Sheets. Revenue under these arrangements is recognized ratably over the underlying terms, as we do not have historical information that would allow us to project the estimated service usage pattern at this time. We expense the incremental costs of obtaining contracts when the amortization period of the costs is less than one year. These costs are included in selling, general, and administrative expenses in our Consolidated Statements of Operations. Our remaining performance obligations primarily relate to customer purchase orders for products we have not yet shipped. We expect to fulfill the majority of these performance obligations within one year. Research and Development Expenses Costs incurred to advance, test, or otherwise modify our technology or develop new technologies are considered research and development costs and are expensed when incurred. These costs are primarily comprised of costs associated with the operation of our laboratories and research facilities, including internal labor, materials, and overhead. Stock-Based Compensation Accounting for stock-based compensation requires the measurement and recognition of compensation expense for all stock-based awards made to employees and directors based on estimated fair value at the grant date. We utilize the Black-Scholes Merton option pricing model to estimate the fair value of stock options. This model requires various estimates and assumptions. 58 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) We estimate the fair value of restricted stock units (“RSUs”) on the grant date. For RSUs that contain a time-based and/or performance-based vesting condition, we estimate fair value using the closing share price on the grant date. We record stock-based compensation expense for awards with time-based vesting conditions on a straight-line basis over the requisite service period. For awards with a performance-based vesting condition, we record stock-based compensation expense (based on our assessment of the probability of meeting the performance conditions) over the estimated period to achieve the performance conditions. If the awards are forfeited, we reverse the stock-based compensation expense. Certain RSUs vest based on a market condition. Our stock-based compensation expense is based on an estimate of the fair value and probability of achievement for each tranche of these awards using a Monte Carlo simulation. For these RSUs, we recognize stock-based compensation expense over each tranche’s estimated achievement period even if some or all of the shares never vest. For all stock awards, we estimate forfeitures at the grant date and revise those estimates in subsequent periods if actual forfeitures differ from our estimates. Income Taxes We follow the liability method of accounting for income taxes under which deferred tax assets and liabilities are recognized for future tax consequences. A deferred tax asset or liability is computed for both the expected future impact of differences between the financial statement and tax basis of assets and liabilities and for the expected future tax benefit to be derived from tax loss and tax credit carryforwards. Tax rate changes are reflected in the period such changes are enacted. We assess the recoverability of our net deferred tax assets and the need for a valuation allowance on a quarterly basis. Our assessment includes several factors, including historical results and taxable income projections for each jurisdiction. The ultimate realization of deferred income tax assets is dependent on the generation of taxable income in appropriate jurisdictions during the periods in which those temporary differences are deductible. We consider the scheduled reversal of deferred income tax liabilities, projected future taxable income, and tax planning strategies in determining the amount of the valuation allowance. Based on the level of historical taxable income and projections for future taxable income over the periods in which the deferred income tax assets are deductible, we determine if we will more likely than not realize the benefits of these deductible differences. Accounting for income taxes requires a two-step approach to recognize and measure uncertain tax positions. The first step is to evaluate the tax position for recognition by determining, if based on the technical merits, it is more likely than not that the position will be sustained upon audit, including resolutions of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is more than 50% likely of being realized upon ultimate settlement. We regularly assess the likelihood of favorable or unfavorable outcomes resulting from these examinations to determine the adequacy of our provision for income taxes. This evaluation is based on factors including, but not limited to, changes in facts or circumstances, changes in tax law, effectively settled issues under audit, and new audit activity. Under U.S. GAAP, an accounting policy election can be made to either recognize deferred taxes for temporary basis differences expected to reverse as global intangible low-tax income (“GILTI”) in future years, or to provide for the tax expense related to GILTI in the year that the tax is incurred as a period expense only. We have elected to account for GILTI in the year that the tax is incurred. 59 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) Commitments and Contingencies We are involved in disputes and legal actions arising in the normal course of our business. While we currently believe that the amount of any ultimate loss would not be material to our financial position, the outcome of these actions is inherently difficult to predict. In the event of an adverse outcome, the ultimate loss could have a material adverse effect on our financial position or reported results of operations. An unfavorable decision in intellectual property litigation also could require material changes in production processes and products or result in our inability to ship products or components found to have violated third party intellectual property rights. We accrue loss contingencies in connection with our commitments and contingencies, including litigation, when it is probable that a loss has occurred, and the amount of such loss can be reasonably estimated. We are not currently a party to any legal action that we believe would reasonably have a material adverse impact on our business, financial condition, results of operations or cash flows. New Accounting Standards From time to time, the Financial Accounting Standards Board (“FASB”) or other standards setting bodies issue new accounting pronouncements. Updates to the FASB Accounting Standards Codification (“ASC”) are communicated through issuance of an Accounting Standards Update (“ASU”). Unless otherwise discussed, we believe that the impact of recently issued guidance, whether adopted or to be adopted in the future, will not have a material impact on the consolidated financial statements upon adoption. New Accounting Standards Adopted The FASB issued the following ASUs that we adopted in the current year: ​ Issuance Date ASU Title March 2020 2020-04 Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting ​ January 2021 2021-01 Reference Rate Reform (Topic 848): Scope ​ December 2022 ​ 2022-06 Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848 ​ This collective guidance provides optional expedients and exceptions for applying U.S. GAAP to contract modifications and hedging relationships, subject to meeting certain criteria that reference LIBOR or another reference rate that is expected to be discontinued. Our Credit Agreement (see Note 18. Long-Term Debt ) and interest rate swap agreements (see Note 7. Derivative Financial Instruments ) referenced the one-month USD LIBOR rate. On March 31, 2023, we executed agreements with our debt holders and the counterparties to our interest rate swap agreements to transition the benchmark interest rate from LIBOR to the one-month-USD Term Secured Overnight Financing Rate (“SOFR”). The impact of this transition and the adoption of the above guidance was not material to our consolidated financial statements. New Accounting Standards Issued But Not Yet Adopted In November 2023, the FASB issued ASU 2023-07 “Segment Reporting (Topic 280) Improvements to Reportable Segment Disclosures.” The amendments in ASU 2023-07 expand disclosure requirements to require additional information about significant segment expenses. In addition, the ASU enhances interim disclosures, clarifies 60 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) circumstances in which an entity can disclose multiple segment measures of profit or loss, and provides new disclosures requirements for entities with a single reportable segment. This guidance will be effective for us on January 1, 2024. We do not expect the above guidance to materially impact our consolidated financial statements. In December 2023, the FASB issued ASU 2023-09 “Improvements to Income Tax Disclosures.” The standard requires disaggregated information about a reporting entity’s effective tax rate reconciliation as well as additional disclosure on income taxes paid. This guidance will be effective for us on January 1, 2025. We do not expect the above guidance to materially impact our consolidated financial statements. ​ NOTE 2. ACQUISITIONS On April 25, 2022, we acquired 100 % of the issued and outstanding shares of capital stock of SL Power Electronics Corporation (“SL Power”), which is based in Calabasas, California. We accounted for this transaction as a business combination. This acquisition added complementary products to Advanced Energy’s medical power offerings and extended our presence in several advanced industrial markets. The components of the fair value of the total consideration transferred were as follows: ​ ​ ​ ​ ​ Cash paid for acquisition ​ $ 145,693 Less cash acquired ​ ​ ( 3,484 ) Total fair value of purchase consideration ​ $ 142,209 ​ We allocated the purchase price consideration to the assets acquired and liabilities assumed based on their estimated fair values as of the acquisition date, with the excess allocated to goodwill. ​ ​ ​ ​ ​ ​ ​ Fair Value Current assets and liabilities, net ​ $ 12,329 Property and equipment ​ ​ 3,567 Operating lease right-of-use assets ​ ​ 4,640 Deferred tax and other liabilities ​ ​ ( 2,326 ) Intangible assets ​ ​ 57,600 Goodwill ​ ​ 71,039 Operating lease liability ​ ​ ( 4,640 ) Total fair value of net assets acquired ​ $ 142,209 ​ The following table summarizes the intangible assets acquired: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortization Useful Life ​ ​ Fair Value ​ Method ​ (in years) Customer relationships ​ $ 50,500 Straight-line 10 Technology ​ 7,100 Straight-line 5 Total ​ $ 57,600 61 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) ​ To estimate the fair value of intangible assets, we used a multi-period excess earnings approach for the customer relationships and a relief from royalty approach for developed technology. Goodwill represents SL Power’s assembled workforce and the expected operating synergies from combining operations. Virtually all of the goodwill is deductible for tax purposes. We included SL Power’s results of operations in our consolidated financial statements from the date of acquisition. During the years ended December 31, 2023 and 2022, SL Power contributed $ 54.9 million and $ 50.3 million, respectively, to our net revenue. ​ ​ 62 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) NOTE 3. REVENUE Disaggregation of Revenue The following tables present additional information regarding our revenue: ​ Revenue by Market ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ 2023 2022 2021 Semiconductor Equipment ​ ​ $ 743,794 ​ $ 930,809 ​ $ 710,174 Industrial and Medical ​ ​ 474,449 ​ 426,763 ​ 341,176 Data Center Computing ​ ​ ​ 249,874 ​ ​ 327,466 ​ ​ 270,924 Telecom and Networking ​ ​ ​ 187,693 ​ ​ 160,384 ​ ​ 133,680 Total ​ ​ $ 1,655,810 ​ $ 1,845,422 ​ $ 1,455,954 ​ Revenue by Region ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ 2023 2022 2021 North America ​ ​ $ 724,481 ​ 43.8 % $ 857,490 ​ 46.5 % $ 665,479 ​ 45.7 % Asia ​ ​ ​ 713,571 ​ 43.1 ​ ​ 754,997 ​ 40.9 ​ ​ 597,830 ​ 41.1 ​ Europe ​ ​ ​ 212,368 ​ 12.8 ​ ​ 219,119 ​ 11.9 ​ ​ 179,056 ​ 12.3 ​ Other ​ ​ 5,390 0.3 ​ 13,816 0.7 ​ 13,589 0.9 ​ Total ​ ​ $ 1,655,810 100.0 % $ 1,845,422 100.0 % $ 1,455,954 100.0 % ​ Revenue by Significant Countries ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ 2023 2022 2021 United States ​ ​ $ 598,359 ​ 36.2 % $ 723,564 ​ 39.2 % $ 561,312 ​ 38.5 % China ​ ​ ​ 165,940 ​ 10.0 ​ ​ 180,355 ​ 9.8 ​ ​ 188,708 ​ 13.0 ​ All others ​ ​ ​ 891,511 ​ 53.8 ​ ​ 941,503 ​ 51.0 ​ ​ 705,934 ​ 48.5 ​ Total ​ ​ $ 1,655,810 100.0 % $ 1,845,422 100.0 % $ 1,455,954 100.0 % ​ We attribute revenue to individual countries and regions based on the customer’s ship to location. Apart from the United States and China, no revenue attributable to any individual country exceeded 10% of our total consolidated revenues during the periods presented. Revenue by Category ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ 2023 2022 2021 Product ​ $ 1,484,007 ​ $ 1,686,053 ​ $ 1,318,213 Services and other ​ ​ 171,803 ​ 159,369 ​ 137,741 Total ​ $ 1,655,810 $ 1,845,422 $ 1,455,954 ​ Other revenue includes certain spare parts and products sold by our service group. ​ 63 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) Significant Customers During the year ended December 31, 2023, Applied Materials, Inc. accounted for 22 % of our total revenue. During the years ended December 31, 2022 and 2021, Applied Materials Inc. and Lam Research Corporation accounted for 20 % and 14 %, respectively, and 20 % and 10 %, respectively, of our total revenue. As of December 31, 2023 and 2022, the account receivable balance from Applied Materials, Inc. accounted for 26 % and 18 %, respectively, of our total accounts receivable. No other customer’s account receivable exceeded 10% of our total accounts receivable in the periods presented. ​ ​ NOTE 4. INCOME TAXES The geographic distribution of pretax income from continuing operations was as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ 2023 2022 2021 Domestic ​ $ ( 17,458 ) ​ $ 5,969 ​ $ 24,541 Foreign ​ 139,919 ​ 235,772 ​ 124,170 Income from continuing operations, before income taxes ​ $ 122,461 ​ $ 241,741 ​ $ 148,711 ​ The income tax provision (benefit) from continuing operations is summarized as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ 2023 2022 2021 Current: ​ ​ ​ ​ Federal ​ $ 13,402 ​ $ 23,370 ​ $ ( 2,468 ) ​ State ​ 589 ​ 1,949 ​ 929 ​ Foreign ​ 11,661 ​ 20,267 ​ 14,217 ​ Total current provision ​ ​ 25,652 ​ ​ 45,586 ​ ​ 12,678 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Deferred: ​ ​ ​ ​ Federal ​ ​ ( 5,455 ) ​ ​ ( 6,742 ) ​ ​ 762 ​ State ​ ( 955 ) ​ ( 1,030 ) ​ ( 200 ) ​ Foreign ​ ( 27,530 ) ​ 2,036 ​ 764 ​ Total deferred provision (benefit) ​ ( 33,940 ) ​ ( 5,736 ) ​ 1,326 ​ Total income tax provision (benefit) ​ $ ( 8,288 ) ​ $ 39,850 ​ $ 14,004 ​ Effective tax rate ​ ​ ( 6.8 ) % ​ 16.5 % ​ 9.4 % ​ Our effective tax rate decreased in 2023 compared to 2022, primarily driven by a change in valuation allowance assessment in 2023. ​ 64 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) The principal causes of the difference between the federal statutory rate and the effective income tax rate for each of the years below are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ 2023 2022 2021 Income taxes per federal statutory rate ​ $ 25,850 ​ $ 50,766 ​ $ 31,229 State income taxes, net of federal deduction ​ ​ ( 490 ) ​ ​ 510 ​ ​ 534 U.S. tax on foreign operations ​ ​ 20,451 ​ ​ 28,726 ​ ​ 5,786 Foreign derived intangible income deduction ​ ​ ( 2,868 ) ​ ​ ( 6,259 ) ​ ​ ( 3,927 ) Tax effect of foreign operations ​ ​ ( 27,959 ) ​ ​ ( 28,432 ) ​ ​ ( 11,520 ) Uncertain tax positions ​ ​ 1,291 ​ ​ 1,080 ​ ​ ( 6,899 ) Audit settlements ​ ​ — ​ ​ 34 ​ ​ 7,764 Change in valuation allowance assessment ​ ​ ( 25,636 ) ​ ​ — ​ ​ — Tax credits ​ ​ ( 7,289 ) ​ ​ ( 5,857 ) ​ ​ ( 6,149 ) Change in valuation allowance ​ ​ 12,927 ​ ​ 268 ​ ​ ( 73 ) Executive compensation limitation ​ ​ 1,955 ​ ​ 641 ​ ​ 1,926 Other permanent items, net ​ ​ ( 6,520 ) ​ ​ ( 1,627 ) ​ ​ ( 4,667 ) Total income tax provision (benefit) ​ $ ( 8,288 ) ​ $ 39,850 ​ $ 14,004 ​ Deferred tax assets and liabilities are recognized for the future tax consequences of differences between the carrying amounts of assets and liabilities and their respective tax bases using enacted tax rates in effect for the year in which the differences are expected to be reversed. Significant deferred tax assets and liabilities consist of the following: ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ 2023 2022 Deferred tax assets ​ ​ Net operating loss and tax credit carryforwards ​ $ 73,954 ​ $ 47,733 Interest expense limitation ​ ​ 7,282 ​ ​ 7,282 Pension obligation ​ 9,960 ​ 7,301 Bond hedge original issue discount ​ 24,755 ​ — Employee bonuses and commissions ​ 6,654 ​ 9,276 Depreciation and amortization ​ 24,787 ​ 25,879 Operating lease liabilities ​ ​ 12,054 ​ ​ 10,136 Other ​ 28,099 ​ 17,102 Total deferred tax assets ​ 187,545 ​ 124,709 Less: valuation allowance ​ ( 37,999 ) ​ ( 36,046 ) Deferred tax assets, net of valuation allowance ​ 149,546 ​ 88,663 ​ ​ ​ ​ ​ ​ ​ Deferred tax liabilities ​ ​ ​ Depreciation and amortization ​ 32,110 ​ 35,678 Unremitted earnings ​ 3,277 ​ 4,115 Operating lease right-of-use assets ​ ​ 9,520 ​ ​ 8,392 Other ​ 4,107 ​ 1,801 Total deferred tax liabilities ​ 49,014 ​ 49,986 Net deferred tax assets ​ $ 100,532 ​ $ 38,677 ​ Of the $ 100.5 million and $ 38.7 million net deferred tax asset on December 31, 2023 and 2022, respectively, $ 107.9 million and $ 48.1 million, respectively, are included as a net non-current deferred tax asset within other assets on 65 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) the Consolidated Balance Sheets. $ 7.4 million and $ 9.4 million, respectively, are included as a net non-current deferred tax liability within other long-term liabilities on the Consolidated Balance Sheets. During the fourth quarter of 2023, we executed a tax planning strategy to facilitate the future utilization of deferred tax assets against which a valuation allowance had been previously recorded. We simultaneously evaluated the need for a valuation allowance and determined that the tax planning strategy resulted in sufficient positive evidence to more likely than not realize the deferred tax assets. As a result, we recorded at $ 25.6 million tax benefit from the release of the related valuation allowance. As of December 31, 2023, we have recorded a total valuation allowance on $ 2.5 million of our U.S. domestic deferred tax assets, largely attributable to state carryforward attributes that are expected to expire before sufficient income can be realized in those jurisdictions. The remaining valuation allowance on deferred tax assets approximates $ 35.5 million and is associated primarily with operations in Germany, Hong Kong, and Switzerland. As of December 31, 2023, there is not sufficient positive evidence to conclude that such deferred tax assets, presently reduced by a valuation allowance, will more likely than not be recognized. The December 31, 2023 valuation allowance balance reflects a decrease of $ 1.9 million during the year. The change in the valuation allowance is primarily due to the release of valuation allowance in Germany, offset by increased losses in Hong Kong subject to a valuation allowance and increases from foreign exchange movements and current year’s activity. As of December 31, 2023, we had U.S., foreign and state tax loss carryforwards of $ 36.7 million, $ 287.1 million, and $ 103.9 million, respectively. Additionally, we had $ 1.8 million and $ 30.5 million of capital loss and interest expense limitation carryforwards, respectively. Finally, we had U.S. and state tax credit carryforwards of $ 0.1 million and $ 1.9 million, respectively. The U.S. and state net operating losses, tax credits, and interest expense limitation are subject to various utilization limitations under Section 382 of the Internal Revenue Code and applicable state laws. These Section 382 limited attributes have various expiration periods through 2036 or, in the case of the interest expense limitation amount, no expiration period. Much of the foreign loss carryforwards, and $ 8.0 million of the federal net operating loss carry forwards, have no expiration period. We operate under a tax holiday in Singapore, China, and Malaysia. These tax holidays are in effect through June 30, 2027, December 31, 2025, and January 31, 2025, respectively. The tax holidays are conditional upon our meeting certain employment and investment thresholds. For the years ended December 31, 2023, 2022 and 2021, the impact of the tax holidays decreased foreign taxes by $ 14.3 million, $ 19.4 million, and $ 13.3 million, respectively, and. the benefit on earnings per diluted share was $ 0.38 , $ 0.52 , and $ 0.35 , respectively. As of December 31, 2023, we have undistributed earnings in certain foreign subsidiaries of approximately $ 34.9 million that we have indefinitely invested, and on which we have not recognized deferred taxes. Estimating the amount of potential tax is not practicable because of the complexity and variety of assumptions necessary to compute the tax. ​ 66 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) We account for uncertain tax positions by applying a minimum recognition threshold to tax positions before recognizing these positions in the consolidated financial statements. The following table provides a reconciliation of our total gross unrecognized tax benefits, which we include within other long-term liabilities on the Consolidated Balance Sheets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ 2023 2022 2021 Balance at beginning of period ​ $ 7,467 ​ $ 5,513 ​ $ 9,673 Additions based on tax positions taken during a prior period ​ 199 ​ 245 ​ 963 Additions based on tax positions taken during a prior period - acquisitions ​ — ​ 1,025 ​ — Additions based on tax positions taken during the current period ​ 1,070 ​ 836 ​ 566 Reductions based on tax positions taken during a prior period ​ — ​ — ​ — Reductions related to a lapse of applicable statute of limitations ​ ( 139 ) ​ ( 152 ) ​ ( 4,575 ) Reductions related to a settlement with taxing authorities ​ ( 145 ) ​ — ​ ( 1,114 ) Balance at end of period ​ $ 8,452 ​ $ 7,467 ​ $ 5,513 ​ The unrecognized tax benefits of $ 8.5 million, if recognized, will impact our effective tax rate. In accordance with our accounting policy, we recognize accrued interest and penalties related to unrecognized tax benefits as a component of tax expense. We had $ 0.7 million and $ 0.6 million of accrued interest and penalties on December 31, 2023 and 2022, respectively. With few exceptions, we are no longer subject to federal, state, or foreign income tax examinations by tax authorities for years before 2020. ​ The Inflation Reduction Act (“IRA”) and CHIPS and Science Act (“CHIPS Act”) were both enacted in August 2022. The IRA introduced new provisions including a 15% corporate alternative minimum tax for certain large corporations that have at least an average of $1 billion adjusted financial statement income over a consecutive three-tax-year period and a 1% excise tax surcharge on stock repurchases. The CHIPS Act provides a variety of incentives associated with investments in domestic semiconductor manufacturing and related activities. The IRA and the CHIPS Act are applicable for tax years beginning after December 31, 2022 and had no benefit to our consolidated financial statements for any of the periods presented, and we do not expect them to have a direct material impact on our future results of operations, financial condition, or cash flows. The Organization for Economic Cooperation and Development is coordinating negotiations among more than 140 countries with the goal of achieving consensus around substantial changes to international tax policies, including the implementation of a minimum global effective tax rate of 15%. Various countries have implemented the legislation as of January 1, 2024, and we are still evaluating the impact. As additional jurisdictions enact such legislation, our effective tax rate and cash tax payments could increase in future years. ​ 67 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) NOTE 5. STOCKHOLDERS’ EQUITY AND EARNINGS PER SHARE Accumulated Other Comprehensive Income The following table summarizes the components of and changes in accumulated other comprehensive income (loss), net of income taxes. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Foreign Currency Translation ​ Change in Fair Value of Cash Flow Hedges ​ Minimum Pension Benefit Retirement Liability ​ Total Balance at December 31, 2020 ​ $ 9,982 ​ $ ( 2,139 ) ​ $ ( 10,448 ) ​ $ ( 2,605 ) Other comprehensive income prior to reclassifications ​ ​ ( 12,262 ) ​ ​ 3,116 ​ ​ 8,585 ​ ​ ( 561 ) Amounts reclassified from accumulated other comprehensive income ​ ​ - ​ ​ 1,130 ​ ​ 820 ​ ​ 1,950 Balance at December 31, 2021 ​ ​ ( 2,280 ) ​ ​ 2,107 ​ ​ ( 1,043 ) ​ ​ ( 1,216 ) Other comprehensive income prior to reclassifications ​ ​ ( 10,543 ) ​ ​ 12,625 ​ ​ 18,016 ​ ​ 20,098 Amounts reclassified from accumulated other comprehensive income ​ ​ - ​ ​ ( 2,884 ) ​ ​ 322 ​ ​ ( 2,562 ) Balance at December 31, 2022 ​ ​ ( 12,823 ) ​ ​ 11,848 ​ ​ 17,295 ​ ​ 16,320 Other comprehensive income prior to reclassifications ​ ​ 2,027 ​ ​ 4,502 ​ ​ ( 5,455 ) ​ ​ 1,074 Amounts reclassified from accumulated other comprehensive income ​ ​ - ​ ​ ( 10,876 ) ​ ​ ( 404 ) ​ ​ ( 11,280 ) Balance at December 31, 2023 ​ $ ( 10,796 ) ​ $ 5,474 ​ $ 11,436 ​ $ 6,114 ​ Amounts reclassified from accumulated other comprehensive income (loss) to the specific caption within the Consolidated Statements of Operations were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ To Caption on ​ 2023 2022 2021 Consolidated Statements of Operations Change in fair value of cash flow hedges ​ $ ( 10,876 ) ​ $ ( 2,884 ) ​ $ 1,130 ​ Interest expense Minimum pension benefit retirement liability ​ ( 404 ) ​ 322 ​ 820 ​ Other income (expense), net Total reclassifications ​ $ ( 11,280 ) ​ $ ( 2,562 ) ​ $ 1,950 ​ ​ ​ 68 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) Earnings Per Share The following table summarizes our earnings per share (“EPS”): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ 2023 2022 2021 Income from continuing operations ​ ​ $ 130,749 ​ $ 201,891 ​ $ 134,707 Less: income from continuing operations attributable to noncontrolling interest ​ ​ — ​ 16 ​ 44 Income from continuing operations attributable to Advanced Energy Industries, Inc. ​ ​ $ 130,749 ​ $ 201,875 ​ $ 134,663 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Basic weighted-average common shares outstanding ​ ​ 37,480 ​ 37,463 ​ 38,143 Dilutive effect of stock awards ​ ​ 270 ​ 258 ​ 212 Diluted weighted-average common shares outstanding ​ ​ 37,750 ​ 37,721 ​ 38,355 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ EPS from continuing operations ​ ​ ​ ​ Basic EPS ​ ​ $ 3.49 ​ $ 5.39 ​ $ 3.53 Diluted EPS ​ ​ $ 3.46 ​ $ 5.35 ​ $ 3.51 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Anti-dilutive shares not included above ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Stock awards ​ ​ ​ 95 ​ ​ 67 ​ ​ 1 Warrants ​ ​ ​ 3,486 ​ ​ — ​ ​ — Total anti-dilutive shares ​ ​ ​ 3,581 ​ ​ 67 ​ ​ 1 ​ We compute basic earnings per share of common stock (“Basic EPS”) by dividing income available to common stockholders by the weighted-average number of common shares outstanding during the period. 69 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) See Note 18. Long-Term Debt for information regarding our Convertible Notes, Note Hedges, and Warrants. For diluted earnings per share of common stock (“Diluted EPS”), we increase the weighted-average number of common shares outstanding during the period, as needed, to include the following: ● Dilutive impact associated with the Convertible Notes using the if-converted method. The Convertible Notes are repayable in cash up to par value and in cash or shares of common stock for the excess over par value, as such when the stock price is lower than the strike price, there is no dilutive or anti-dilutive impact. Prior to conversion, we do not consider the Note Hedges for purposes of Diluted EPS as their effect would be anti-dilutive. Upon conversion, we expect the Note Hedges to offset the dilutive effect of the Convertible Notes when the stock price is above $ 137.46 ; ● Additional common shares that would have been outstanding if our outstanding stock awards had been converted to common shares using the treasury stock method. We exclude any stock awards that have an anti-dilutive effect; and ● Dilutive effect of the Warrants issued concurrently with the Convertible Notes using the treasury stock method. For all periods presented, the Warrants did not increase the weighted-average number of common shares outstanding because the exercise price of the Warrants exceeded the average market price of our common stock. Share Repurchases To repurchase shares of our common stock, we periodically enter into stock repurchase agreements. The following table summarizes these repurchases: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, (in thousands, except per share amounts) 2023 2022 2021 Amount paid or accrued to repurchase shares ​ ​ $ 40,132 ​ $ 26,635 ​ $ 78,125 Number of shares repurchased ​ ​ 378 ​ 356 ​ 901 Average repurchase price per share ​ ​ $ 105.74 ​ $ 74.90 ​ $ 86.76 ​ There were no shares repurchased from related parties. Repurchased shares were retired and assumed the status of authorized and unissued shares. At December 31, 2023, the remaining amount authorized by the Board of Directors (“our Board” or “the Board”) for future share repurchases was $ 199.2 million with no time limitation . 70 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) NOTE 6. FAIR VALUE MEASUREMENTS The following tables present information about our assets and liabilities measured at fair value on a recurring basis. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 Description ​ Balance Sheet Classification ​ Level 1 ​ Level 2 ​ Level 3 ​ Total Fair Value Certificates of deposit ​ Other current assets ​ $ — ​ $ 163 ​ $ — ​ $ 163 Interest rate swaps ​ Other current assets ​ ​ — ​ ​ 6,995 ​ ​ — ​ ​ 6,995 Available for sale investments ​ Other assets ​ ​ — ​ ​ 5,952 ​ ​ — ​ ​ 5,952 Net assets measured at fair value on a recurring basis ​ ​ ​ $ — ​ $ 13,110 ​ $ — ​ $ 13,110 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 Description ​ Balance Sheet Classification ​ Level 1 Level 2 Level 3 Total Fair Value Certificates of deposit ​ Other current assets ​ $ — ​ $ 2,128 ​ $ — ​ $ 2,128 Interest rate swaps ​ Other assets ​ ​ — ​ ​ 15,310 ​ ​ — ​ ​ 15,310 Net assets measured at fair value on a recurring basis ​ ​ ​ $ — ​ $ 17,438 ​ $ — ​ $ 17,438 ​ ​ ​ ​ NOTE 7. DERIVATIVE FINANCIAL INSTRUMENTS Changes in foreign currency exchange rates impact our results of operations and cash flows. We may manage these risks through the use of derivative financial instruments, primarily forward contracts with banks. These forward contracts manage the exchange rate risk associated with assets and liabilities denominated in nonfunctional currencies. Typically, we execute these derivative instruments for one-month periods and do not designate them as hedges; however, they do partially offset the economic fluctuations of certain of our assets and liabilities due to foreign exchange rate changes. There were no foreign currency forward contracts outstanding at December 31, 2023 or 2022. Gains and losses related to foreign currency exchange contracts were offset by corresponding gains and losses on the revaluation of the underlying assets and liabilities. Both are included as a component of other income (expense), net in our Consolidated Statements of Operations. We have executed interest rate swap contracts that fix a portion of the interest payments related to the outstanding principal balance on our Term Loan Facility to a total interest rate of 1.172 %. The interest rate swap contracts expire on September 10, 2024 and are accounted for as cash flow hedging instruments. See Note 18. Long-term Debt for information regarding the Term Loan. ​ 71 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) The following table summarizes the notional amount of our qualified hedging instruments: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ 2023 2022 Interest rate swap contracts ​ $ 220,719 ​ $ 238,219 ​ The following table summarizes the amounts net of tax recorded in accumulated other comprehensive income on the Consolidated Balance Sheets for qualifying hedges. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ 2023 2022 Interest rate swap contract gains ​ $ 5,350 ​ $ 11,779 ​ See Note 6. Fair Value Measurements for information regarding the fair value of derivative instruments. As a result of using derivative financial instruments, we are exposed to the risk that counterparties to contracts could fail to meet their contractual obligations. We manage this credit risk by reviewing counterparty creditworthiness on a regular basis and limiting exposure to any single counterparty. ​ ​ NOTE 8. ACCOUNTS RECEIVABLE, NET We record accounts receivable at net realizable value. The following table summarizes the changes in expected credit losses related to receivables: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ December 31, ​ 2023 2022 2021 Balance at beginning of period $ 1,814 ​ $ 5,784 ​ $ 7,602 Additions ​ 220 ​ ​ 441 ​ 135 Deductions - write-offs, net of recoveries ​ ​ ( 281 ) ​ ​ ( 4,381 ) ​ ​ ( 687 ) Foreign currency translation ​ ​ 9 ​ ​ ( 30 ) ​ ​ ( 18 ) Other ​ ​ — ​ ​ — ​ ​ ( 1,248 ) Balance at end of period ​ $ 1,762 ​ $ 1,814 ​ $ 5,784 ​ ​ ​ NOTE 9. INVENTORIES We value inventories at the lower of cost or net realizable value, computed on a first-in, first-out basis. Components of inventories were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2023 2022 Parts and raw materials ​ ​ $ 249,698 ​ $ 286,955 Work in process ​ ​ 14,595 ​ 23,002 Finished goods ​ ​ 71,844 ​ 66,055 Total ​ ​ $ 336,137 ​ $ 376,012 ​ ​ 72 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) NOTE 10. PROPERTY AND EQUIPMENT, NET Property and equipment, net is comprised of the following: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Estimated Useful ​ December 31, ​ December 31, ​ Life (in years) 2023 2022 Buildings, machinery, and equipment ​ 5 to 25 ​ $ 191,744 ​ $ 165,673 Software ​ 3 to 5 ​ ​ 24,526 ​ ​ 21,120 Computer equipment, furniture, fixtures, and vehicles ​ 3 to 5 ​ 19,281 ​ 15,161 Leasehold improvements ​ 2 to 10 ​ 79,764 ​ 63,103 Capital projects in process ​ ​ ​ 21,721 ​ 18,226 ​ ​ ​ ​ 337,036 ​ 283,283 Less: Accumulated depreciation ​ ​ ​ ( 169,371 ) ​ ( 134,821 ) Property and equipment, net ​ ​ ​ $ 167,665 ​ $ 148,462 ​ The following table summarizes property and equipment, net by geographic area: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ 2023 2022 United States ​ $ 63,222 ​ $ 43,963 Asia ​ ​ 96,045 ​ ​ 98,684 Europe and other ​ ​ 8,398 ​ ​ 5,815 Total ​ $ 167,665 ​ $ 148,462 ​ The following table summarizes depreciation expense. All depreciation expense is recorded in income from continuing operations: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ ​ 2023 2022 2021 Depreciation expense ​ ​ $ 38,279 ​ $ 34,182 ​ $ 30,833 ​ ​ ​ ​ 73 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) NOTE 11. INTANGIBLE ASSETS AND GOODWILL Intangible assets consisted of the following: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ Gross Carrying Accumulated Net Carrying Weighted Average Remaining ​ ​ Amount ​ Amortization ​ Amount Useful Life (in years) Technology ​ $ 97,961 ​ $ ( 60,412 ) ​ $ 37,549 ​ 6.8 Customer relationships ​ 168,685 ​ ​ ( 58,835 ) ​ 109,850 ​ 9.5 Trademarks and other ​ 27,141 ​ ​ ( 13,062 ) ​ 14,079 ​ 5.6 Total ​ $ 293,787 ​ $ ( 132,309 ) ​ $ 161,478 ​ 8.5 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ Gross Carrying Accumulated Net Carrying ​ ​ ​ ​ Amount ​ Amortization ​ Amount ​ ​ Technology ​ $ 97,237 ​ $ ( 47,196 ) ​ $ 50,041 ​ ​ Customer relationships ​ 167,631 ​ ​ ( 44,774 ) ​ 122,857 ​ ​ Trademarks and other ​ 27,036 ​ ​ ( 10,408 ) ​ 16,628 ​ ​ Total ​ $ 291,904 ​ $ ( 102,378 ) ​ $ 189,526 ​ ​ ​ Amortization expense related to intangible assets was as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ ​ 2023 2022 2021 Amortization expense ​ ​ $ 28,254 ​ $ 26,114 ​ $ 22,060 ​ Estimated future amortization expense related to intangibles is as follows: ​ ​ ​ ​ ​ Year Ending December 31, ​ ​ 2024 ​ $ 25,250 2025 ​ 21,013 2026 ​ 19,297 2027 ​ 17,384 2027 ​ ​ 16,141 Thereafter ​ 62,393 Total ​ $ 161,478 ​ ​ The following table summarizes the changes in goodwill: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ ​ 2023 2022 Balance at beginning of period ​ $ 281,433 ​ $ 212,190 Measurement period adjustments ​ ​ 353 ​ ​ 40 Additions from acquisition ​ ​ — ​ ​ 70,686 Foreign currency translation ​ ​ 2,054 ​ ​ ( 1,483 ) Balance at end of period $ 283,840 ​ $ 281,433 ​ Additions and adjustments are the result of business combinations. Refer to Note 2. Acquisitions. ​ 74 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) NOTE 12. RESTRUCTURING, ASSET IMPAIRMENTS, AND OTHER CHARGES Details of restructuring, asset impairments, and other charges are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ ​ 2023 2022 2021 Restructuring $ 25,134 ​ $ 6,814 ​ $ 4,752 Asset impairments ​ ​ 1,446 ​ ​ — ​ ​ — Other charges ​ 397 ​ — ​ — Total restructuring, asset impairments, and other charges ​ $ 26,977 ​ $ 6,814 ​ $ 4,752 ​ Restructuring We have several restructuring plans in process: 2023 Plan In 2023, we approved a plan intended to optimize and consolidate our manufacturing operations and functional support groups as well as a general reduction-in-force to align to our expenses to revenue levels (the “2023 Plan”). We expect additional charges of $ 1.0 million to $ 2.0 million to be incurred in future periods through the second quarter of 2025. We anticipate the 2023 Plan will be substantially completed by the end of 2024, with the final activities concluding by June 2025. ​ 2022 Plan This plan was approved to further improve our operating efficiencies and drive the realization of synergies from our business combinations by consolidating our operations, optimizing our factory footprint, including moving certain production into our higher volume factories, reducing redundancies, and lowering our cost structure. We anticipate the 2022 Plan will be substantially completed by the end of 2024. ​ 2018 Plan The purpose of this plan is to optimize our manufacturing footprint and to improve our operating efficiencies and synergies related to business combinations. We incurred severance costs primarily related to the transition and exit of our facility in Shenzhen, China and actions associated with synergies related to the acquisition of Artesyn Embedded Technologies, Inc.’s embedded power business. This plan is complete with the closure of our Shenzhen facility in February 2023. ​ Charges related to our restructuring plans are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ ​ 2023 2022 2021 Severance and related charges $ 25,134 ​ $ 6,469 ​ $ 3,467 Facility relocation and closure charges ​ — ​ 345 ​ 1,285 Total restructuring charges ​ $ 25,134 ​ $ 6,814 ​ $ 4,752 ​ 75 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cumulative Cost Through ​ ​ December 31, 2023 ​ 2023 Plan 2022 Plan 2018 Plan Total Severance and related charges $ 17,103 ​ $ 13,987 ​ $ 20,893 ​ $ 51,983 Facility relocation and closure charges ​ ​ — ​ ​ — ​ ​ 7,160 ​ ​ 7,160 Total restructuring charges ​ $ 17,103 ​ $ 13,987 ​ $ 28,053 ​ $ 59,143 ​ Our restructuring liabilities are included in other accrued expenses in our Consolidated Balance Sheets. Changes in restructuring liabilities were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 Plan 2022 Plan 2018 Plan Total December 31, 2020 ​ $ — ​ $ — ​ $ 10,641 ​ $ 10,641 Costs incurred and charged to expense ​ ​ — ​ ​ — ​ ​ 4,752 ​ ​ 4,752 Costs paid or otherwise settled ​ ​ — ​ ​ — ​ ​ ( 6,127 ) ​ ​ ( 6,127 ) Foreign currency translation ​ ​ — ​ ​ — ​ ​ ( 3 ) ​ ​ ( 3 ) December 31, 2021 ​ $ — ​ $ — ​ $ 9,263 ​ $ 9,263 Costs incurred and charged to expense ​ ​ — ​ ​ 5,788 ​ ​ 1,026 ​ ​ 6,814 Costs paid or otherwise settled ​ ​ — ​ ​ — ​ ​ ( 8,751 ) ​ ​ ( 8,751 ) Foreign currency translation ​ ​ — ​ ​ — ​ ​ ( 116 ) ​ ​ ( 116 ) December 31, 2022 ​ $ — ​ $ 5,788 ​ $ 1,422 ​ $ 7,210 Costs incurred and charged to expense ​ ​ 17,103 ​ ​ 8,199 ​ ​ ( 168 ) ​ ​ 25,134 Costs paid or otherwise settled ​ ​ ( 2,879 ) ​ ​ ( 11,057 ) ​ ​ ( 1,066 ) ​ ​ ( 15,002 ) December 31, 2023 ​ $ 14,224 ​ $ 2,930 ​ $ 188 ​ $ 17,342 ​ Asset Impairments In connection with vacating facilities, we remeasured the operating lease right-of-use assets at fair value using Level 2 measurements and recorded a $ 1.4 million impairment charge. ​ ​ NOTE 13. WARRANTIES Our sales agreements include customary product warranty provisions, which generally range from 12 to 24 months after shipment. We record the estimated warranty obligations cost when we recognize revenue. This estimate is based on historical experience by product and configuration. Our estimated warranty obligation is included in other accrued expenses in our Consolidated Balance Sheets. Changes in our product warranty obligation were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ 2023 2022 Balance at beginning of period ​ ​ $ 5,702 ​ $ 3,350 Additions from acquisitions ​ ​ ​ — ​ ​ 181 Net increases to accruals ​ ​ 2,317 ​ 5,620 Warranty expenditures ​ ​ ( 4,017 ) ​ ( 3,408 ) Effect of changes in exchange rates ​ ​ 5 ​ ( 41 ) Balance at end of period ​ ​ $ 4,007 ​ $ 5,702 ​ ​ 76 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) NOTE 14. LEASES Components of total operating lease cost were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ ​ 2023 2022 ​ 2021 Operating lease cost ​ ​ $ 22,571 ​ $ 22,626 ​ $ 23,443 Short-term and variable lease cost ​ ​ ​ 4,150 ​ ​ 4,838 ​ ​ 2,555 Total operating lease cost ​ ​ $ 26,721 ​ $ 27,464 ​ $ 25,998 ​ Payments on our operating lease liabilities are as follows: ​ ​ ​ ​ ​ Year Ending December 31, ​ ​ 2024 ​ $ 22,523 2025 ​ 19,341 2026 ​ 16,652 2027 ​ ​ 13,649 2028 ​ ​ 13,244 Thereafter ​ ​ 53,003 Total lease payments ​ ​ 138,412 Less: Interest ​ ​ ( 31,338 ) Present value of lease liabilities ​ $ 107,074 ​ ​ In addition to the above, we have lease agreements with total payments of $ 48.9 million that commence on various dates in 2024 and 2025 and extend through 2037. The following tables present additional information about our lease agreements: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ ​ 2023 2022 ​ Weighted average remaining lease term (in years) ​ ​ 8.3 ​ ​ 8.9 ​ Weighted average discount rate ​ ​ 5.0 % ​ 4.6 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ 2023 2022 ​ 2021 Cash paid for operating leases $ 22,988 ​ $ 22,287 ​ $ 23,668 Right-of-use assets obtained in exchange for operating lease liabilities $ 14,321 ​ $ 17,022 ​ $ 16,399 ​ ​ 77 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) NOTE 15. EMPLOYEE RETIREMENT PLANS AND POSTRETIREMENT BENEFITS Defined Contribution Plans We have a 401(k) profit-sharing and retirement savings plan covering substantially all full-time U.S. employees. Participants may defer up to the maximum amount permitted by law. Participants are immediately vested in both their own contributions and profit-sharing contributions. Profit-sharing contributions, which are discretionary, are approved by the Board. For the years ended December 31, 2023 and 2022, we based our profit-sharing contribution on matching 100 % of employee contributions up to 3 % of compensation plus an additional match of 50 % on the next 2 % of compensation. For the year ended December 31, 2021 we based our profit-sharing contribution on matching 50 % of employee contributions up to 6 % of the employee’s compensation. During the years ended December 31, 2023, 2022, and 2021 we recognized total defined contribution plan costs of $ 5.1 million, $ 4.5 million, and $ 3.1 million, respectively. Defined Benefit Plans We maintain defined benefit pension plans for certain of our non-U.S. employees in the United Kingdom, Germany, and Philippines. Each plan is managed locally and in accordance with respective local laws and regulations. To measure the expense and related benefit obligation, we make various assumptions, including discount rates used to value the obligation, expected return on plan assets used to fund these expenses, and estimated future inflation rates. We base these assumptions on historical experience as well as current facts and circumstances. We use an actuarial analysis to measure the expense and liability associated with pension benefits. The information provided below includes one pension plan which is part of discontinued operations. As such, for all periods presented, all related expenses are reported in discontinued operations in the Consolidated Statements of Operations. 78 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) Our projected benefit obligation and plan assets for defined benefit pension plans and the related assumptions used to determine the related liabilities are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ 2023 2022 Projected benefit obligation, beginning of year ​ $ 56,520 ​ $ 85,776 Service cost ​ 1,016 ​ 1,133 Interest cost ​ 2,909 ​ 1,819 Actuarial loss (gain) ​ 4,808 ​ ( 23,677 ) Benefits paid ​ ( 1,452 ) ​ ( 1,502 ) Translation adjustment ​ 1,852 ​ ( 7,029 ) Projected benefit obligation, end of year ​ ​ 65,653 ​ ​ 56,520 ​ ​ ​ ​ ​ ​ ​ Fair value of plan assets, beginning of year ​ $ 12,489 ​ $ 18,521 Expected return ​ 654 ​ 535 Contributions ​ 1,443 ​ 1,430 Benefits paid ​ ( 1,140 ) ​ ( 1,124 ) Actuarial gain (loss) ​ 17 ​ ( 5,060 ) Translation adjustment ​ 652 ​ ( 1,813 ) Fair value of plan assets, end of year ​ ​ 14,115 ​ ​ 12,489 Funded status of plan ​ $ ( 51,538 ) ​ $ ( 44,031 ) ​ The components of net periodic pension benefit cost recognized in our Consolidated Statements of Operations for the periods presented are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ 2023 2022 2021 Service cost ​ $ 1,016 ​ $ 1,133 ​ $ 1,282 Interest cost ​ ​ 2,909 ​ ​ 1,819 ​ ​ 1,452 Expected return on plan assets ​ ( 654 ) ​ ( 535 ) ​ ( 642 ) Amortization of actuarial gains and losses ​ ( 404 ) ​ 322 ​ 820 Net periodic pension cost ​ $ 2,867 ​ $ 2,739 ​ $ 2,912 ​ Assumptions used in the determination of the net periodic pension cost are: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ 2023 2022 2021 Discount rate used for net periodic pension costs 5.1 % 2.6 % 1.6 % Discount rate used for pension benefit obligations ​ 4.4 % 5.1 % 2.6 % Expected long-term return on plan assets 5.2 % 3.2 % 3.2 % ​ ​ 79 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) The fair value of our qualified pension plan assets by category was as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ Level 1 Level 2 Level 3 Total Diversified Growth Fund ​ $ — ​ $ 11,606 ​ $ — ​ $ 11,606 Corporate Bonds ​ — ​ ​ 1,212 ​ ​ — ​ ​ 1,212 Insurance Contracts ​ ​ — ​ ​ — ​ ​ 799 ​ ​ 799 Cash ​ 498 ​ ​ — ​ ​ — ​ ​ 498 Total ​ $ 498 ​ $ 12,818 ​ $ 799 ​ $ 14,115 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ Level 1 Level 2 Level 3 Total Diversified Growth Fund ​ $ — ​ $ 9,100 ​ $ — ​ $ 9,100 Corporate Bonds ​ — ​ 2,333 ​ — ​ 2,333 Insurance Contracts ​ ​ — ​ — ​ 798 ​ 798 Cash ​ 258 ​ — ​ — ​ 258 Total ​ $ 258 ​ $ 11,433 ​ $ 798 ​ $ 12,489 ​ Expected future payments during the next ten years for our defined benefit pension plans are as follows: ​ ​ ​ ​ ​ Year Ending December 31, ​ ​ 2024 ​ $ 3,884 2025 ​ ​ 2,205 2026 ​ ​ 4,224 2027 ​ ​ 2,927 2028 ​ ​ 3,217 2029 to 2033 ​ ​ 21,309 ​ ​ ​ NOTE 16. STOCK-BASED COMPENSATION The Compensation Committee of our Board administers our stock plans. As of December 31, 2023, we have two active stock-based incentive compensation plans: the 2023 Omnibus Incentive Plan (“the 2023 Plan”) and the Employee Stock Purchase Plan (“ESPP”). The 2023 Plan was approved on April 27, 2023. We issue all new equity compensation grants under these two plans; however, outstanding awards previously issued under inactive plans will continue to vest and remain exercisable in accordance with the terms of the respective plans. The 2023 Plan provides for the grant of stock options, stock appreciation rights, restricted stock, stock units, unrestricted stock, and dividend equivalent rights. Any of the awards issued may be issued as performance-based awards to align stock compensation awards to the attainment of annual or long-term performance goals. The following table summarizes information related to our stock-based incentive compensation plans: ​ ​ ​ ​ ​ ​ December 31, 2023 Shares available for future issuance under the 2023 Plan ​ 2,323 Shares available for future issuance under the ESPP ​ 577 ​ 80 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) Stock-based Compensation Expense We recognize stock-based compensation expense based on the fair value of the awards issued and the functional area of the employee receiving the award. Stock-based compensation was as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ 2023 2022 2021 Stock-based compensation expense ​ ​ $ 31,001 ​ $ 19,849 ​ $ 15,739 ​ Restricted Stock Units Generally, we grant restricted stock units (“RSUs”) with a three year time-based vesting schedule. Certain RSUs contain performance-based or market-based vesting conditions in addition to the time-based vesting requirements. RSUs are generally granted with a grant date fair value based on the market price of our stock on the date of grant. Changes in our RSUs were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2023 ​ ​ Weighted- ​ ​ ​ ​ Average ​ ​ Number of ​ Grant Date ​ ​ RSUs ​ Fair Value RSUs outstanding at beginning of period 803 ​ $ 78.46 RSUs granted 408 ​ $ 100.04 RSUs vested ( 228 ) ​ $ 85.47 RSUs forfeited ( 66 ) ​ $ 81.40 RSUs outstanding at end of period 917 ​ $ 85.96 ​ The weighted-average grant date fair value for RSUs granted in the years ended December 31, 2023, 2022, and 2021 was $ 100.04 , $ 74.62 , and $ 94.60 , respectively. The fair value of RSUs vested for the years ended December 31, 2023, 2022 and 2021 was $ 19.5 million, $ 13.5 million, and $ 11.2 million, respectively. As of December 31, 2023, there was $ 40.5 million of total unrecognized compensation cost, net of expected forfeitures, related to non-vested RSUs, that we expect to recognize through December 2026, with a weighted-average remaining vesting period of 1.1 years. Stock Options Generally, we grant stock option awards with an exercise price equal to the market price of our stock at the date of grant and with either a three or four-year vesting schedule or performance-based vesting. Stock option awards generally have a term of ten years . 81 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) Changes in our stock options were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2023 ​ ​ Weighted- Weighted- ​ ​ ​ ​ Average ​ Average ​ ​ Number of ​ Exercise Price ​ Remaining ​ ​ Options ​ per Share ​ Contractual Life Options outstanding at beginning of period 151 ​ $ 55.48 ​ 5.63 years Options exercised ( 62 ) ​ $ 24.67 ​ ​ Options outstanding at end of period 89 ​ $ 76.69 ​ 7.10 years Options vested at end of period 39 ​ $ 64.74 ​ 5.68 years ​ The total intrinsic value of options exercised for the years ended December 31, 2023, 2022 and 2021 was $ 4.6 million, $ 2.6 million, and $ 2.6 million, respectively. As of December 31, 2023, the aggregate intrinsic value of options outstanding and exercisable was $ 2.9 million and $ 1.7 million, respectively. As of December 31, 2023, there was $ 1.0 million of total unrecognized compensation cost, net of expected forfeitures, related to the unvested options that we expect to recognize over a remaining period of 1.2 years. Employee Stock Purchase Plan The ESPP, a stockholder-approved plan, provides for the issuance of rights to purchase up to 1.5 million shares of common stock. Most employees are eligible to participate in the ESPP if employed for at least 20 hours per week during at least five months per calendar year. Participating employees may contribute up to the lesser of 15 % of their eligible earnings or $ 5,000 during each plan period. Currently, the plan period is six months. The purchase price of common stock purchased under the ESPP is currently equal to the lower of 1) 85 % of the fair market value of our common stock on the commencement date of each plan period or 2) 85 % of the fair market value of our common shares on each plan period purchase date. As of December 31, 2023, there was $ 0.5 million of total unrecognized compensation cost related to the ESPP that we expect to recognize over a remaining period of five months . ​ ​ NOTE 17. COMMITMENTS AND CONTINGENCIES We are involved in disputes and legal actions arising in the normal course of our business. While we currently believe that the amount of any ultimate loss would not be material to our financial position, the outcome of these actions is inherently difficult to predict. In the event of an adverse outcome, the ultimate loss could have a material adverse effect on our financial position or reported results of operations. An unfavorable decision in intellectual property litigation also could require material changes in production processes and products or result in our inability to ship products or components found to have violated third party intellectual property rights. We accrue loss contingencies in connection with our commitments and contingencies, including litigation, when it is probable that a loss has occurred, and the amount of such loss can be reasonably estimated. We are not currently a party to any legal action that we believe would reasonably have a material adverse impact on our business, financial condition, results of operations or cash flows. ​ ​ 82 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) NOTE 18. LONG-TERM DEBT Long-term debt on our Consolidated Balance Sheets consists of the following: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ 2023 2022 Convertible Notes due 2028 ​ $ 575,000 ​ $ — Term Loan Facility due 2026 ​ ​ 355,000 ​ ​ 375,000 Gross long-term debt, including current maturities ​ ​ 930,000 ​ ​ 375,000 Less: debt discount ​ ​ ( 14,321 ) ​ ​ ( 1,738 ) Net long-term debt, including current maturities ​ ​ 915,679 ​ ​ 373,262 Less: current maturities ​ ​ ( 20,000 ) ​ ​ ( 20,000 ) Net long-term debt ​ $ 895,679 ​ $ 353,262 ​ For all periods presented, we were in compliance with the covenants under all debt agreements. Contractual maturities of our gross long-term debt, including current maturities, are as follows: ​ ​ ​ ​ ​ Year Ending December 31, ​ 2024 ​ $ 20,000 2025 ​ ​ 20,000 2026 ​ ​ 315,000 2027 ​ ​ — 2028 ​ ​ 575,000 Total ​ $ 930,000 ​ The following table summarizes our borrowings: ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ ​ Balance Interest Rate Convertible Notes ​ $ 575,000 ​ 2.50 % Term Loan Facility at fixed interest rate due to interest rate swap ​ ​ 220,719 ​ 1.17 % Term Loan Facility at variable interest rate ​ ​ 134,281 ​ 6.21 % Total borrowings ​ $ 930,000 ​ ​ ​ The interest rate swap contracts expire on September 10, 2024. After that date, this portion of our Term Loan Facility will be subject to a variable interest rate. For more information, see Note 7. Derivative Financial Instruments . The Term Loan Facility and Revolving Facility bear interest, at our option, at a rate based on the Base Rate or SOFR, as defined in the Credit Agreement, plus an applicable margin. The following table summarizes interest expense related to our debt: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, ​ ​ 2023 2022 2021 Interest expense ​ ​ $ 15,186 ​ $ 6,607 ​ $ 3,969 Amortization of debt issuance costs ​ ​ ​ 1,330 ​ ​ 547 ​ ​ 822 Total interest expense related to debt ​ ​ $ 16,516 ​ $ 7,154 ​ $ 4,791 ​ 83 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) Convertible Senior Notes due 2028 On September 12, 2023, we completed a private, unregistered offering of $ 575.0 million aggregate principal amount 2.50 % convertible senior notes (“Convertible Notes”) and received net proceeds of approximately $ 561.1 million after the discount for the initial purchasers’ fees. We used $ 40.1 million of the net proceeds to repurchase approximately 0.4 million shares of common stock and $ 40.1 million to fund the net cost of convertible note hedge transactions (“Note Hedges”) after such costs were offset by the proceeds from the sale of warrants to purchase our common stock (“Warrants”). The Convertible Notes mature on September 15, 2028, unless earlier repurchased, redeemed, or converted. Interest is payable semi-annually in arrears in March and September. We do not maintain a sinking fund. We may redeem for cash all or any portion of the Convertible Notes, at our option, on or after September 20, 2026 if the last reported sale price of our common stock has been at least 130 % of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading-day period (including the last trading day of such period). The redemption price is 100 % of the principal amount plus accrued and unpaid interest. Prior to May 15, 2028, holders have the option to convert all or a portion of their Convertible Notes under the following circumstances: ● during any calendar quarter if the last reported sale price of our common stock, for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days is greater than or equal to 130 % of the conversion price on each applicable trading day; ● during the five business day period immediately after any five consecutive trading day period in which the trading price per $ 1,000 principal amount of the Convertible Notes for each trading day was less than 98 % of the product of the last reported sale price of our common stock on each such trading day and the conversion rate on each such trading day; ● if Advanced Energy calls any or all of the Convertible Notes for redemption; or ● upon the occurrence of specified corporate transactions or events described in the indenture. From May 15, 2028 through the maturity date, holders have the option to convert at any time regardless of circumstances. The initial conversion rate is 7.2747 shares of common stock per $ 1,000 principal amount, which is equivalent to an initial conversion price of approximately $ 137.46 per share of common stock. The conversion rate is subject to adjustment upon the occurrence of certain specified events as set forth in the indenture. Upon conversion, Advanced Energy will do the following: ● pay cash up to the aggregate principal amount to be converted; and ● pay or deliver cash, shares of our common stock, or a combination (at our election) with respect to the remainder, if any, of the conversion obligation in excess of the aggregate principal amount being converted. Concurrent with the Convertible Notes issuance, we entered into the Note Hedges with respect to our common stock. We will exercise the Note Hedges simultaneously when the Convertible Notes are settled. The Note Hedges have a $ 137.46 per share initial exercise price and cover, subject to customary anti-dilution adjustments, the number of shares 84 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) of common stock that initially underlie the Convertible Notes and are expected to reduce the potential dilution to the common stock and/or offset potential cash payments in excess of the principal amount upon conversion of the Convertible Notes. We paid approximately $ 115.0 million in cash for the Note Hedges, which we recorded to additional paid-in capital in our Statements of Stockholders’ Equity . Also concurrent with the issuance of our Convertible Notes, we sold Warrants, which provide the counterparties the option to acquire approximately 4.2 million aggregate shares of our common stock (subject to customary anti-dilution adjustments), which is the same number of shares of our common stock covered by the Note Hedges at a $ 179.76 per share initial exercise price, which represents a 70 % premium over the $ 105.74 closing price of our common stock on September 7, 2023. The Warrants expire on July 7, 2029. We received aggregate proceeds of $ 74.9 million for the sale of Warrants, which we recorded to additional paid-in capital in our Statements of Stockholders’ Equity. If the market value per share of our common stock exceeds the exercise price of the Warrants during the measurement period at the maturity of such Warrants, the Warrants will have a dilutive effect on our earnings per share as we will owe the counterparties a number of shares of common stock in an amount based on the excess of such market price per share of the common stock over the Warrants’ exercise price. The Note Hedge and Warrants are separate from the Convertible Notes. The Convertible Notes holders have no rights with respect to the Note Hedges and Warrants. Counterparties in the Note Hedge and Warrants transactions have no rights with respect to the Convertible Notes. However, in combination, the Note Hedges and Warrants synthetically increase the initial conversion price on the Convertible Notes from $ 137.46 to $ 179.76 , reducing the potential dilutive effect of the Convertible Notes. We recorded a $ 26.1 million deferred tax asset to reflect the impact of the Convertible Notes and Note Hedges. Credit Agreement Our credit agreement dated as of September 10, 2019, as amended (the “Credit Agreement”) consists of a senior unsecured term loan facility (“Term Loan Facility”) and a senior unsecured revolving facility (“Revolving Facility”). Both mature on September 9, 2026. On March 31, 2023, we executed agreements pursuant to the Credit Agreement to transition the benchmark interest rate from LIBOR to SOFR. The impact of this transition was not material to our consolidated financial statements. On September 7, 2023, we entered into an additional amendment to the Credit Agreement to amend certain definitions, covenants, and events of default to enable the issuance of the Convertible Notes and the entry into the Note Hedges and Warrants. The following table summarizes our availability to withdraw on the Revolving Facility: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ 2023 2022 Available capacity on Revolving Facility ​ $ 200,000 ​ $ 200,000 ​ As part of our available capacity on the Revolving Facility, prior to the maturity date of our Credit Agreement, we may request an increase to the financing commitments in either the Term Loan Facility or Revolving Facility by an aggregate amount not to exceed $ 115.0 million. Any requested increase is subject to lender approval. 85 Table of Contents ADVANCED ENERGY INDUSTRIES, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (continued) (in thousands, except per share amounts) We use level 2 measurements to estimate the fair value of our debt. As of December 31, 2023, we estimate the fair value of our Convertible Notes to be $ 598.7 million, and the par value of the Term Loan Facility approximates its fair value. ​ ​ 86 Table of Contents ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE Not applicable. ​