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DIODES INC /DEL/

For the period ended Sep 30, 2025. Filed Nov 6, 2025.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2025 · Filed Nov 6, 2025

DIOD$85.89+11.0%Stored close · as of Nov 9, 2026

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Item 1. Financial Statements

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands, except share and per share data)

September 30,December 31,
20252024
Assets
Current assets:
Cash and cash equivalents$376,587$308,671
Restricted cash5,4606,053
Short-term investments9,8077,464
Accounts receivable, net of allowances of $4,169 and $7,799 at September 30, 2025 and December 31, 2024, respectively303,813325,517
Inventories470,912474,948
Prepaid expenses and other106,931101,500
Total current assets1,273,5101,224,153
Property, plant, and equipment, net657,413684,259
Deferred tax assets54,51151,974
Goodwill183,144181,555
Intangible assets, net50,26467,397
Other long-term assets250,949176,943
Total assets$2,469,791$2,386,281
Liabilities
Current liabilities:
Lines of credit$33,167$31,429
Accounts payable146,910133,765
Accrued liabilities and other175,235186,576
Income tax payable23,72622,730
Current portion of long-term debt4,7581,096
Total current liabilities383,796375,596
Long-term debt, net of current portion20,09719,563
Deferred tax liabilities11,2236,953
Unrecognized tax benefits24,64624,646
Other long-term liabilities82,60890,576
Total liabilities522,370517,334
Commitments and contingencies (See Note 9)
Stockholders' equity
Preferred stock - par value $1.00 per share; 1,000,000 shares authorized; no shares issued or outstanding--
Common stock - par value $0.66 2/3 per share; 70,000,000 shares authorized; and 46,383,277 shares and 46,332,891 shares issued and outstanding at September 30, 2025 and December 31, 2024, respectively37,25737,083
Additional paid-in capital531,433523,744
Retained earnings1,775,2371,719,298
Treasury stock, at cost, 9,499,364 shares and 9,288,420 shares at September 30, 2025 and December 31, 2024, respectively(348,104)(338,100)
Accumulated other comprehensive loss(106,669)(146,724)
Stockholders' equity1,889,1541,795,301
Noncontrolling interest58,26773,646
Total equity1,947,4211,868,947
Total liabilities and stockholders' equity$2,469,791$2,386,281
The accompanying notes are an integral part of these condensed consolidated financial statements.

-3-

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share data)

Three Months Ended · Nine Months Ended
September 30,September 30,
2025202420252024
Net sales$392,170$350,079$1,090,495$971,822
Cost of goods sold271,682232,071749,989646,844
Gross profit120,488118,008340,506324,978
Operating expenses
Selling, general, and administrative60,49859,388178,667171,590
Research and development41,86133,691121,025100,844
Amortization of acquisition related intangible assets5,8503,83317,51311,497
Loss (gain) on disposal of fixed assets699(571)700(5,525)
Restructuring charges9(211)3438,039
Other operating (income) expense(1)11-
Total operating expense108,91696,131318,249286,445
Income from operations11,57221,87722,25738,533
Other income (expense)
Interest income8,4874,53221,32413,383
Interest expense(503)(456)(1,476)(1,840)
Foreign currency (loss), net(3,328)(4,423)(9,943)(2,652)
Unrealized gain (loss) on investments2,391(3,410)28,0041,310
Impairment of equity investment--(5,817)-
Gain on disposal of subsidiary--13,730-
Other income4136821,4091,678
Total other income (expense)7,460(3,075)47,23111,879
Income before income taxes and noncontrolling interest19,03218,80269,48850,412
Income tax provision3,5553,61912,6389,799
Net income15,47715,18356,85040,613
Less net income attributable to noncontrolling interest(1,199)(1,438)(911)(4,830)
Net income attributable to common stockholders$14,278$13,745$55,939$35,783
Earnings per share attributable to common stockholders:
Basic$0.31$0.30$1.21$0.78
Diluted$0.31$0.30$1.20$0.77
Number of shares used in earnings per share computation:
Basic46,38346,33146,38446,166
Diluted46,43746,44246,45446,378

-4-

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

Three Months Ended · Nine Months Ended
September 30,September 30,
2025202420252024
Net income$15,477$15,183$56,850$40,613
Unrealized gain on defined benefit plan, net of tax2,7541327,0144,070
Unrealized gain (loss) on derivative instruments, net of tax11,309(9,790)(11,784)1,005
Unrealized foreign currency (loss) gain, net of tax(20,453)29,24644,82522,568
Comprehensive income9,08734,77196,90568,256
Less: Comprehensive income attributable to noncontrolling interest(1,199)(1,438)(911)(4,830)
Total comprehensive income attributable to common stockholders$7,888$33,333$95,994$63,426

-5-

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY

Common stock · Treasury stock · Additional paid-in · Retained · Accumulated other comprehensive · Total Diodes Incorporated stockholders' · Noncontrolling · Total
SharesAmountSharesAmountcapitalearningslossequityinterestequity
Balance, June 30, 202555,710$37,142(9,499)$(348,104)$527,385$1,760,959$(100,279)$1,877,103$57,068$1,934,171
Total comprehensive income-----14,278(6,390)7,8881,1999,087
Net changes in noncontrolling interest----------
Common stock issued for share-based plans172115--(115)-----
Share-based compensation----6,826--6,826-6,826
Tax related to net share settlement----(2,663)--(2,663)-(2,663)
Balance, September 30, 202555,882$37,257(9,499)$(348,104)$531,433$1,775,237$(106,669)$1,889,154$58,267$1,947,421
Common stock · Treasury stock · Additional paid-in · Retained · Accumulated other comprehensive · Total Diodes Incorporated stockholders' · Noncontrolling · Total
SharesAmountSharesAmountcapitalearningslossequityinterestequity
Balance, December 31, 202455,621$37,083(9,288)$(338,100)$523,744$1,719,298$(146,724)$1,795,301$73,646$1,868,947
Total comprehensive income-----55,93940,05595,99491196,905
Net changes in noncontrolling interest----(6,855)--(6,855)(16,290)(23,145)
Common stock issued for share-based plans261174--(174)-----
Share-based compensation----19,005--19,005-19,005
Stock buyback--(211)(10,004)---(10,004)-(10,004)
Tax related to net share settlement----(4,287)--(4,287)-(4,287)
Balance, September 30, 202555,882$37,257(9,499)$(348,104)$531,433$1,775,237$(106,669)$1,889,154$58,267$1,947,421

-6-

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (CONT.)

Common stock · Treasury stock · Additional paid-in · Retained · Accumulated other comprehensive · Total Diodes Incorporated stockholders' · Noncontrolling · Total
Shares · Amount · Shares · Amount · capital · earnings · loss · equity · interest · equity
Balance, June 30, 202455,434$36,958(9,288)$(338,052)$513,309$1,697,312$(135,172)$1,774,355$77,221$1,851,576
Total comprehensive income-----13,74519,58833,3331,43834,771
Net changes in noncontrolling interest----853-853(6,934)(6,081)
Common stock issued for share-based plans185124--(124)-----
Share-based compensation----6,817--6,817-6,817
Deferred compensation plan---(48)48-----
Tax related to net share settlement----(3,774)--(3,774)-(3,774)
Balance, September 30, 202455,619$37,082(9,288)$(338,100)$517,129$1,711,057$(115,584)$1,811,584$71,725$1,883,309
Common stock · Treasury stock · Additional paid-in · Retained · Accumulated other comprehensive · Total Diodes Incorporated stockholders' · Noncontrolling · Total
Shares · Amount · Shares · Amount · capital · earnings · loss · equity · interest · equity
Balance, December 31, 202355,225$36,819(9,287)$(337,986)$509,861$1,675,274$(143,227)$1,740,741$68,936$1,809,677
Total comprehensive income-----35,78327,64363,4264,83068,256
Net changes in noncontrolling interest----853--853(2,041)(1,188)
Common stock issued for share-based plans394263--(263)-----
Share-based compensation----16,080--16,080-16,080
Deferred compensation plan--(1)(114)114---
Tax related to net share settlement----(9,516)--(9,516)-(9,516)
Balance, September 30, 202455,619$37,082(9,288)$(338,100)$517,129$1,711,057$(115,584)$1,811,584$71,725$1,883,309

-7-

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

Nine Months Ended
September 30,
20252024
Cash flows from operating activities
Net income$56,850$40,613
Adjustments to reconcile net income to net cash flows from operating activities, net of effects of acquisitions
Depreciation90,97490,762
Amortization of intangible assets17,51311,497
Share-based compensation expense19,00516,083
Deferred income taxes(304)(307)
Investment gain(27,613)(1,336)
Gain on sale of subsidiary(13,730)-
Impairment of long-lived assets5,836-
Gain (loss) on disposal of fixed assets700(5,525)
Interest income from derivative financial instruments(15,484)(7,091)
Other381(2,206)
Changes in operating assets:
Change in accounts receivable27,77816,482
Change in inventory12,645(90,155)
Change in other operating assets1,8593,669
Changes in operating liabilities:
Change in accounts payable10,049(9,200)
Change in accrued liabilities(12,671)(19,439)
Change in income tax payable(97)(6,975)
Change in other operating liabilities3,706741
Net cash flows from operating activities177,39737,613
Cash flows from investing activities
Acquisition, net of cash acquired(5,160)-
Purchases of property, plant, and equipment(52,660)(53,328)
Proceeds from sale of property, plant, and equipment5,6601,088
Proceeds from short-term investments7,62915,468
Purchases of short-term investments(8,919)(12,958)
Purchases of equity securities(49,303)-
Proceeds from sale of subsidiary15,958-
Insurance recovery-4,725
Net amounts paid for hedge termination(6,635)-
Other(540)(3,870)
Net cash flows from investing activities(93,970)(48,875)
Cash flows from financing activities
Advances on lines of credit and short-term debt34,03667,920
Repayments of lines of credit and short-term debt(34,906)(72,433)
Proceeds from long-term debt6,5396,283
Repayments of long-term debt(4,097)(5,554)
Repayment of and proceeds from finance lease obligation(73)(36)
Taxes paid related to net share settlement(4,287)(9,516)
Net changes in noncontrolling interest(18,004)2,544
Repurchase of common stock(10,004)-
Other(28)(4,744)
Net cash flows from financing activities(30,824)(15,536)
Effect of exchange rate changes on cash and cash equivalents14,72025,399
Change in cash and cash equivalents, including restricted cash67,323(1,399)
Cash and cash equivalents, beginning of period, including restricted cash314,724318,483
Cash and cash equivalents, end of period, including restricted cash$382,047$317,084

-8-

Supplemental Cash Flow Information
Interest paid during the period$1,237$1,618
Taxes paid during the period$21,205$18,302
Non-cash investing and financing activities:
Accounts payable balance related to the purchase of property, plant, and equipment$12,237$13,186

-9-

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

NOTE 1 – Summary of Operations and Significant Accounting Policies

Summary of Operations

Diodes Incorporated, together with its subsidiaries (collectively the “Company,” “we,” or “our” (Nasdaq: DIOD)), a Standard and Poor’s Smallcap 600 and Russell 3000 Index company, delivers high-quality semiconductor products to the world’s leading companies in the automotive, industrial, computing, consumer electronics, and communications markets.

The Company’s diverse product portfolio covers diodes; rectifiers; transistors; MOSFETs; SiC diodes and MOSFETs; protection devices; logic; voltage translators; amplifiers and comparators; sensors; isolation; and power management devices such as AC-DC converters, DC-DC switching, photocoupler, linear voltage regulators, voltage references, LED drivers, power switches, and voltage supervisors. We also have timing and connectivity solutions including clock ICs, crystal oscillators, PCIe packet switches, multi-protocol switches, interface products, and signal integrity solutions for high-speed signals.

The Company operates from the following locations, with additional support offices throughout the world:

Corporate Headquarters

Plano, Texas, United States

Design, Engineering, and Marketing

Shanghai, Yangzhou, Shenzhen, and Hong Kong, China

Greenock, Scotland

Bratislava, Slovakia

New Taipei City, Hsinchu, and Tainan, Taiwan

Milpitas, California, and Plano, Texas, United States

Wafer Fabrication

Shanghai and Wuxi, China

Greenock, Scotland

Hsinchu, Taiwan

South Portland, Maine, United States

Assembly and Test

Shanghai, Chengdu, and Wuxi, China

Neuhaus am Rennweg, Germany

Chongli, Taiwan

Sales, Warehouse, and Logistics

Hong Kong, Shanghai, Beijing, Shenzhen, Wuhan, Qingdao, and Xiamen China

Frankfurt and Munich, Germany

Milan, Italy

Tokyo, Japan

Singapore

Seongnam-si, South Korea

New Taipei City, Taiwan

Milpitas, California and Plano, Texas, United States

The Company’s manufacturing facilities have achieved certifications in the internationally recognized standards of ISO 9001:2015, ISO 14001:2015, and, for automotive products, IATF 16949:2016 and the Company is also C-TPAT certified. We believe these quality awards reflect the superior quality-control techniques established at the Company and further enhance our credibility as a vendor-of-choice to original equipment manufacturers (“OEMs”) increasingly concerned with quality and consistency.

Our market focus is on high-growth, end-user applications in the following areas:

Industrial: embedded systems, precision controls, medical, clean energy, machine to machine, robotics, motor control, and AIoT;

Automotive: connected driving, comfort/style/safety, and electrification/powertrain;

-10-

Computing: cloud computing: server, AI server, storage, data centers, and edge AI;

Communications: smart phones, 5G networks, and enterprise networking; and

Consumer: IoT: wearables, home automation, home appliances, smart infrastructure, and charging solutions.

Basis of Presentation

The condensed consolidated financial data at December 31, 2024 are derived from audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2024 filed with the Securities and Exchange Commission (“SEC”) on February 14, 2025 (“Form 10-K”). The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with United States Generally Accepted Accounting Principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q. They do not include all information and footnotes necessary for a fair presentation of financial position, operating results, and cash flows in conformity with GAAP for complete financial statements. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes contained in our Form 10-K. All significant intercompany balances and transactions have been eliminated in consolidation. In the opinion of management, all adjustments (consisting of normal recurring adjustments and accruals) considered necessary for a fair presentation of the operating results for the period presented have been included in the interim period. Operating results for the three and nine months ended September 30, 2025 are not necessarily indicative of the results that may be expected for other interim periods or the year ending December 31, 2025.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from these estimates. As permitted under GAAP, interim accounting for certain expenses, including income taxes, are based on full year forecasts. For interim financial reporting purposes, income taxes are recorded based upon estimated annual effective income tax rates taking into consideration discrete items occurring in a quarter.

Dollar amounts and share amounts are presented in thousands, except per share amounts, unless otherwise noted. Certain prior year’s balances may have been reclassified to conform to the current condensed consolidated financial statement presentation.

Recently Issued Accounting Pronouncements

In November 2024, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40). The amendments in this update require that at each interim and annual reporting period an entity disclose:

The amounts of purchases of inventory, employee compensation, depreciation, intangible asset amortization, and depreciation, depletion, and amortization recognized as part of oil and gas-producing activities (or other amounts of depletion expense) included in each relevant expense caption. A relevant expense caption is an expense caption presented on the face of the income statement within continuing operations that contains any of the expense categories listed above;

Companies are also required to include certain amounts that are already required to be disclosed under current generally accepted accounting principles in the same disclosure as the other disaggregation requirements;

Disclose a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively; and

Disclose the total amount of selling expenses and, in annual reporting periods, an entity’s definition of selling expenses.

The amendments in this update are effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. Early adoption is permitted.

In May 2025, the FASB issued ASU 2025-03, “Business Combination and Consolidation: Determining the Accounting Acquirer in the Acquisition of a Variable Interest Entity”(“ASU 2025-03”). ASU 2025-03 provides clarifying guidance on determining the accounting acquirer in certain transactions involving VIEs. The update aims to improve consistency and comparability in financial reporting, especially when companies merge with a special-purpose acquisition company (“SPAC”). ASU 2025-03 requires entities to apply the same factors used for determining the accounting acquirer in other acquisition transactions. Essentially, it aims to make financial reporting more comparable and decision-useful for investors by ensuring that the accounting acquirer is appropriately identified in acquisitions of VIEs, particularly in SPAC transactions. ASU 2024-03 is effective for fiscal years beginning after December 15, 2026 including interim periods within those annual periods, with early adoption permitted. The Company is currently evaluating the impact this amended guidance may have on its financial statements.

In July 2025, the FASB issued ASU 2025-05, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets”(“ASU 2025-05”). ASU 2025-05 provides a practical expedient that all entities can use when estimating expected credit losses for current accounts receivable and current contract assets arising from transactions accounted for under ASC 606, Revenue from Contracts with Customers. Under this practical expedient, an entity is allowed to assume that the current conditions it has applied in determining credit loss allowances for current accounts receivable and current contract assets remain

-11- unchangedfor the remaining life of those assets. ASU 2025-05 is effective for fiscal years beginning after December 15, 2025, and interim reporting periods in those years. Entities that elect the practical expedient and, if applicable, make the accounting policy election are required to apply the amendments prospectively. The Company does not expect this amended guidance will have a material impact on its financial statements.

NOTE 2 – Earnings per Share

Earnings per share (“EPS”) is calculated by dividing net income attributable to common stockholders by the weighted-average number of shares of Common Stock outstanding during the period. Diluted EPS is calculated similarly but includes potential dilution from the exercise of stock options and stock awards, except when the effect would be anti-dilutive. No dividends were paid on our Common Stock in any of the periods presented in this report.

The table below sets forth the reconciliation between net income and the weighted average shares outstanding used for calculating basic and diluted EPS:

Three Months Ended · Nine Months Ended
September 30,September 30,
2025202420252024
Earnings (numerator)
Net income attributable to common stockholders$14,278$13,745$55,939$35,783
Shares (denominator)
Weighted average common shares outstanding (basic)46,38346,33146,38446,166
Dilutive effect of stock options and stock awards outstanding5411170212
Adjusted weighted average common shares outstanding (diluted)46,43746,44246,45446,378
Earnings per share attributable to common stockholders
Basic$0.31$0.30$1.21$0.78
Diluted$0.31$0.30$1.20$0.77
Stock options and stock awards excluded from EPS calculation because the effect would be anti-dilutive273125674241

NOTE 3 – Inventories

The table below sets forth inventories which are stated at the lower of cost or net realizable value:

September 30, 2025December 31, 2024
Finished goods$174,062$203,665
Work-in-progress89,04080,232
Raw materials207,810191,051
Total$470,912$474,948

NOTE 4 – Goodwill and Intangible Assets

The table below sets forth the changes in goodwill:

Balance at December 31, 2024$181,555
Disposal(2,942)
Foreign currency translation adjustment4,531
Balance at September 30, 2025$183,144

-12-

The table below sets forth the value of intangible assets, other than goodwill:

September 30,December 31,
20252024
Intangible assets subject to amortization:
Gross carrying amount$270,997$271,000
Accumulated amortization(221,830)(204,317)
Foreign currency translation adjustment(8,277)(8,507)
Total intangible assets subject to amortization40,89058,176
Intangible assets with indefinite lives:
Gross carrying amount10,30310,303
Foreign currency translation adjustment(929)(1,082)
Total intangible assets with indefinite lives9,3749,221
Total intangible assets, net$50,264$67,397

The table below sets forth amortization expense related to intangible assets subject to amortization:

Amortization expense20252024
Three Months Ended September 30,$5,850$3,833
Nine Months Ended September 30,$17,513$11,497

NOTE 5 – Income Tax Provision

The table below sets forth information related to our income tax expense:

Three Months Ended · Nine Months Ended
September 30,September 30,
2025202420252024
Domestic pre-tax income (loss)$(27,451)$7,327$62,798$3,502
Foreign pre-tax (loss) income$46,483$11,475$6,690$46,910
Income tax provision$3,555$3,619$12,638$9,799
Effective tax rate18.7%19.2%18.2%19.4%
Impact of tax holidays on tax expense$(353)$438$(816)$641
Earnings per share impact of tax holidays:
Basic$0.01$(0.01)$0.02$(0.01)
Diluted$0.01$(0.01)$0.02$(0.01)

The decrease in effective tax rate for the three and nine months ended September 30, 2025, when compared to the three and nine months ended September 30, 2024, is primarily due to the change in pre-tax earnings during the comparable periods, including the geographical mix of pre-tax income and loss across tax jurisdictions and changes in conclusions regarding the realizability of certain deferred tax assets.

Our undistributed foreign earnings continue to be indefinitely reinvested in foreign operations, with limited exceptions related to certain earnings of European and Asian subsidiaries. Any future distributions of foreign earnings will not be subject to additional U.S. income tax but may be subject to non-U.S. withholding taxes.

We file income tax returns in the U.S. federal jurisdiction and in various state and foreign jurisdictions. We are no longer subject to U.S. federal income tax examinations by tax authorities for tax years before 2021. We are no longer subject to China income tax examinations by tax authorities for tax years before 2014. With respect to state and local jurisdictions and countries outside of the U.S. (other than China), with limited exceptions, the Company is no longer subject to income tax audits for years before 2018. Although the outcome of tax audits is always uncertain, the Company believes that adequate amounts of tax, interest and penalties, if any, have been provided for in the Company’s reserve for any adjustments that may result from currently pending tax audits. The Company recognizes accrued interest and penalties related to unrecognized tax benefits in interest expense. As of September 30, 2025, the gross amount of unrecognized tax benefits was approximately $45.5 million.

Several jurisdictions in which we operate have either enacted, or announced plans to enact, legislation consistent with the Organization for Economic Co-operation and Development Global Anti-Base Erosion Model Rules ("Pillar Two") which introduced a global minimum effective tax rate of 15% applied on a jurisdiction-by-jurisdiction basis. We have analyzed enacted legislation and do not anticipate that it will have a material impact on our effective tax rate for 2025; however, we continue to monitor future tax legislative changes in the jurisdictions in which we operate in order to evaluate the impacts to the consolidated financial statements.

-13-

It is reasonably possible that the amount of the unrecognized benefit with respect to certain of the Company’s unrecognized tax positions will significantly increase or decrease within the next 12 months. At this time, an estimate of the range of the reasonably possible outcomes cannot be made.

One Big Beautiful Bill Act

On July 4, 2025, the One Big Beautiful Bill Act was signed into law in the U.S., which contains a broad range of income tax provisions affecting businesses. The Company has evaluated the impact of this legislation and determined that there is no material impact to income tax expense for 2025.

NOTE 6 – Share-Based Compensation

The table below sets forth information related to our share-based compensation expense:

Three Months Ended · Nine Months Ended
September 30,September 30,
2025202420252024
Cost of goods sold$584$579$1,650$1,500
Selling, general, and administrative4,9094,91613,55710,874
Research and development1,3331,2713,7983,709
Total share-based compensation expense$6,826$6,766$19,005$16,083

Share Grants. Share grants consist of restricted stock awards, restricted stock units (“RSUs”) and performance stock units (“PSUs”). Restricted stock awards and RSUs generally vest in equal annual installments over a four-year period and are measured based on the fair market value of the underlying stock on the date of grant. Compensation expense is recognized on a straight-line basis over the requisite four-year service period. All new grants are awarded under the Company’s 2022 Equity Incentive Plan.

PSUs are measured based on the fair market value of the underlying stock on the date of grant, and compensation expense is recognized over the three-year performance period, with adjustments made to the expense to recognize the probable payout percentage.

As of September 30, 2025, total unrecognized share-based compensation expense related to share grants was approximately$57.5 million, before income taxes, and is expected to be recognized over a weighted average period of approximately 2.4 years.

NOTE 7 – Enterprise-Wide Segment Information and Net Sales

Segment Reporting. For financial reporting purposes, we operate in a single segment, standard semiconductor products, through our various manufacturing and distribution facilities. One segment reflects how our chief operating decision maker, which is ourchief executive officer, allocates resources and measures results. We aggregate our products because the products are similar and have similar economic characteristics, use similar production processes and share similar customer type. Our primary operations include operations in Asia, the Americas, and Europe.

During the three months ended September 30, 2025, two customers accounted for approximately $51.9 million and $44.6 million, or 13.2% and 11.4%, respectively, of our net sales. During thenine months ended September 30, 2025, two customers accounted for approximately $134.7 million and $124.1 million, or 12.4% and 11.4%, respectively, or our net sales. As of September 30, 2025, one customer accounted for approximately $50.4 million, or 16.6%, of the Company’s outstanding accounts receivable.

During the three months ended September 30, 2024, one customer accounted for approximately $44.3 million or 12.6% of our net sales. During thenine months ended September 30, 2024, one customer accounted for approximately $64.8 million or 16.0% of our net sales. As of September 30, 2024, one customer accounted for approximately 17.7% andone customer accounted for approximately 14.1% of our outstanding accounts receivable. All customers that accounted for 10% or more of our net sales during any period presented in this Quarterly Report on Form 10-Q are broad-based global distributors that sell to thousands of different end users.

Disaggregation of Net Sales. We disaggregate net sales with customers into direct sales to end customers and distribution sales to distributors (“Distributors”) and by geographic area. Direct sales customers consist of those customers using our product in their manufacturing process, and Distributors are those customers who resell our products to third parties. We deliver our products to customers around the world for use in the industrial, automotive, computing, consumer, and communications markets. Further, most of our contracts are fixed-price arrangements, and are short term in nature, ranging from days to several months. The tables below set forth net sales based on the location of the subsidiary producing the net sale:

-14-

For the Three Months EndedSeptember 30, 2025AsiaAmericasEuropeConsolidated
Total sales$442,991$298,683$63,003$804,677
Intercompany elimination(202,191)(171,276)(39,040)(412,507)
Net sales$240,800$127,407$23,963$392,170
For the Three Months Ended September 30, 2024AsiaAmericasEuropeConsolidated
Total sales$380,013$255,058$68,771$703,842
Intercompany elimination(161,213)(155,017)(37,533)(353,763)
Net sales$218,800$100,041$31,238$350,079
As of and for the
Nine Months Ended September 30, 2025AsiaAmericasEuropeConsolidated
Total sales$1,192,521837,343$180,888$2,210,752
Intercompany elimination(539,676)(474,653)(105,928)(1,120,257)
Net sales$652,845$362,690$74,960$1,090,495
Property, plant, and equipment, net$492,175$68,893$96,345$657,413
Total assets$1,608,545$599,627$261,619$2,469,791
As of and for the
Nine Months Ended September 30, 2024AsiaAmericasEuropeConsolidated
Total sales$1,051,118$695,447$204,868$1,951,433
Intercompany elimination(445,714)(431,204)(102,693)(979,611)
Net sales$605,404$264,243$102,175$971,822
Property, plant, and equipment, net$515,347$78,915$109,463$703,725
Total assets$1,678,927$472,420$238,035$2,389,382

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The tables below set forth net sales for the Company disaggregated into geographic locations based on shipment destination and by type(direct sales or Distributor):

For the Three Months Ended September 30,
Net Sales by Region20252024
Asia$307,902$274,711
Europe46,20852,588
Americas38,06022,780
Total net sales$392,170$350,079
Net Sales by Type
Direct sales$132,074$127,219
Distributor sales260,096222,860
Total net sales$392,170$350,079
For the Nine Months Ended September 30,
Net Sales by Region20252024
Asia$852,170$748,774
Europe136,328147,403
Americas101,99775,645
Total net sales$1,090,495$971,822
Net Sales by Type
Direct sales$383,903$362,223
Distributor sales706,592609,599
Total net sales$1,090,495$971,822

The table below sets forth the location to where products were shipped, representing 10% or more of net sales.

Location · Amount
For the three months ended September 30,20252024
China$170.6$149.2
Singapore$38.2$36.2
Taiwan$44.0$41.2
For the nine months ended September 30,
China$488.4$430.2
Singapore$112.8$94.7
Taiwan$95.5$107.3

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NOTE 8 – Debt

Borrowings outstanding as of September 30, 2025 and December 31, 2024 are set forth in the table below:

September 30, · December 31, · Current Amount
Description20252024Interest RateMaturity
Short-term debt$33,167$31,429Various indices plus marginVarious during next 12 months
Long-term debt
Notes payable to Bank of Taiwan1,5701,5932-yr deposit rate floating plus 0.1148%June 2033
Notes payable to Bank of Taiwan3,2753,0522-yr deposit rate floating plus 0.082%September 2026
Notes payable to CTBC Bank3,2753,052TAIBOR 3M plus 0.5%March 2027
Notes payable to CTBC Bank3,275-TAIBOR 3M plus 0.5%April 2027
Notes payable to CTBC Bank11,90811,606TAIBOR 3M plus 0.5%May 2028
Notes payable to E Sun Bank1141481-M deposit rate floating plus 0.08%July 2027
Notes payable to E Sun Bank9951,0641-M deposit rate floating plus 0.08%July 2030
Notes payable to E Sun Bank1151441-M time deposit rate plus 1.4%October 2027
Notes payable to Taishin Bank328-3-M deposit rate floating plus 0.25%January 2027
Total long-term debt24,85520,659
Less: Current portion of long-term debt(4,758)(1,096)
Total long-term debt, net of current portion$20,097$19,563

Short-term debt

Our Asia subsidiaries maintain credit facilities with several financial institutions through our foreign entities worldwide totaling$148.9 million. Other than two Taiwanese credit facilities that are collateralized by assets, our foreign credit lines are unsecured, uncommitted and contain no restrictive covenants. These credit facilities bear interest at the Taipei Interbank Offered Rate (or similar indices) plus a specified margin. Interest payments are due monthly on outstanding amounts under the credit lines. The unused and available credit under the various facilities as of September 30, 2025, was approximately$115.3 million, net of$33.2 million advanced under our foreign credit lines and$0.4 million credit used for import and export guarantee.

Long-term debt

The Company maintains a long-term credit facility (“Credit Agreement”). The Credit Agreement consists of a Revolving Credit Facility in the amount of$225.0 million, including a swing line sublimit equal to the lesser of $50.0 million and the Revolving Credit Facility, a letter of credit sublimit equal to the lesser of $100.0 million and the Revolving Credit Facility, and an alternative currency sublimit equal to the lesser of $40.0 million and the Revolving Credit Facility. The Company has the option to increase the Credit Facility and/or incur Incremental Term Loans in an aggregate principal amount of up to $350.0 million. There wasno outstanding balance at September 30, 2025.

NOTE 9 – Commitments and Contingencies

Purchase Commitments. We have entered into non-cancelable purchase contracts for capital expenditures, primarily for manufacturing equipment, for approximately$38.1 million at September 30, 2025. As of September 30, 2025, we also had a commitment to purchase approximately$62.5 million of wafers to be used in our manufacturing process. These wafer purchases are scheduled to occur through 2031.

Defined Benefit Plan. We have a contributory defined benefit plan that covers certain employees in the United Kingdom. As of September 30, 2025, the underfunded liability for this defined benefit plan was approximately$3.4 million. We have agreed to a revised schedule of contributions of GBP 2.0 million (approximately $2.6 million based on a GBP: USD exchange rate of 1:1.3) to be paid annually with effect from January 1, 2023 to address the deficit revealed by the valuation (with the annual payments to be made by December 31, 2023 through December 31, 2028). A final payment of GBP 1.5 million (approximately $2.0 million based on a GBP: USD rate of 1:1.3) will be made by December 31, 2029.

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Contingencies. From time to time, we are involved in various legal proceedings that arise in the normal course of business. While we intend to defend any lawsuit vigorously, we presently believe that the ultimate outcome of any pending legal proceeding will not have any material adverse effect on our consolidated financial position, cash flows, or operating results. However, litigation is subject to inherent uncertainties, and unfavorable rulings could occur. An unfavorable ruling could include monetary damages, which could impact our business and operating results for the period in which the ruling occurs and future periods. Based on available information available, we evaluate the likelihood of potential outcomes of all pending disputes. We record an appropriate liability when the amount of any liability associated with a pending dispute is deemed probable and reasonably estimable. In addition, we do not accrue estimated legal fees and other directly related costs as they are expensed as incurred. The Company is not currently a party to any pending litigation that we consider material.

NOTE 10 – Derivative Financial Instruments

We use derivative instruments to manage risks related to foreign currencies, interest rates, and the net investment risk in our foreign subsidiaries. Our objectives for holding derivatives include reducing, eliminating, and efficiently managing the economic impact of these exposures as effectively as possible. Our derivative programs include strategies that both qualify and do not qualify for hedge accounting treatment.

Hedges of Foreign Currency Risk. We are exposed to fluctuations in various foreign currencies against our different functional currencies. We use foreign currency forward agreements to manage this exposure. As of September 30, 2025 and December 31, 2024, we had$316.9 million and$380.9 million, respectively, of outstanding foreign currency forward agreements that are intended to preserve the economic value of foreign currency denominated monetary assets and liabilities; these instruments are not designated for hedge accounting treatment in accordance with Accounting Standards Codification (“ASC”) No. 815.

Hedges of Interest Rate and Net Investment Risk. The Company’s objectives in using interest rate derivatives are to add stability to interest expense and to manage its exposure to interest rate movements. To accomplish these objectives, the Company primarily uses interest rate swaps, including interest rate collars, as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. The Company makes use of cross-currency swaps and foreign-currency forward contracts to decrease the foreign exchange risk inherent in the Company’s investment in some of its foreign subsidiaries.

The table below sets forth the fair value of the Company’s derivative financial instruments as well as their classification on our condensed consolidated balance sheets as of September 30, 2025 and December 31, 2024:

Fair Value
Other Current or Non-Current Assets · Other Liabilities
2025 · 2024 · 2025 · 2024
Collared forwards$2,916$593$-$8,071

NOTE 11 – Leases

The Company leases certain assets used in its business, including land, buildings, and equipment. These leased assets are used for operational and administrative purposes.

The components of lease expense are set forth in the table below:

Three Months Ended · Nine Months Ended
September 30, · September 30,
2025 · 2024 · 2025 · 2024
Operating lease expense$3,602$3,615$10,835$10,778
Finance lease expense:
Amortization of assets772122
Interest on lease liabilities1133
Short-term lease expense6235641,7111,685
Variable lease expense1,3931,3743,7183,676
Total lease expense$5,626$5,561$16,288$16,164

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The table below sets forth supplemental balance sheet information related to leases. In our condensed consolidated balance sheets, right of use (“ROU”) assets are included in other long-term assets while lease liabilities are located in accrued liabilities and other for the current portion and other long-term liabilities for the non-current portion:

September 30, 2025December 31, 2024
Operating leases:
Operating lease ROU assets$55,248$53,749
Current operating lease liabilities11,14610,863
Noncurrent operating lease liabilities31,36228,648
Total operating lease liabilities$42,508$39,511
Finance leases:
Finance lease ROU assets$2,765$2,708
Accumulated amortization(2,630)(2,606)
Finance lease ROU assets, net$135$102
Current finance lease liabilities$43$40
Non-current finance lease liabilities9163
Total finance lease liabilities$134$103
Weighted average remaining lease term (in years):
Operating leases7.36.6
Finance leases3.13.3
Weighted average discount rate:
Operating leases4.1%4.0%
Finance leases3.6%3.6%

The table below sets forth supplemental cash flow and other information related to leases:

Nine Months Ended
September 30, 2025September 30, 2024
Cash paid for the amounts included in the measurements of lease liabilities:
Operating cash outflows from operating leases$14,579$15,469
Operating cash outflows from finance leases23
Financing cash outflow from finance leases7336
ROU assets obtained in exchange for lease liabilities incurred:
Operating leases10,6203,630

The table below sets forth information about lease liability maturities:

Operating Leases · Finance Leases
2025$5,203$12
202612,47947
20278,56844
20285,57936
20292,6223
20302,584-
2031 and thereafter12,979-
Total lease payments50,014142
Less: imputed interest(7,506)(8)
Total lease obligations42,508134
Less: current obligations(11,146)(43)
Long-term lease obligations$31,362$91

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NOTE 12 – Employee Benefit Plans

We maintain a Non-Qualified Deferred Compensation Plan (the “Deferred Compensation Plan”) for executive officers, key employees, and members of the Board of Directors. The Deferred Compensation Plan allows eligible participants to defer the receipt of eligible compensation, including equity awards, until designated future dates. We offset our obligations under the Deferred Compensation Plan primarily by investing in the actual underlying investments. At September 30, 2025 and December 31, 2024, these investments totaled approximately$19.6 million and$17.2 million, respectively.

NOTE 13– Related Parties

We conduct business with the following related parties: Keylink International (B.V.I.) Inc. and its subsidiaries and affiliates (“Keylink”), Nuvoton Technology Corporation (“Nuvoton”), Jiyuan Crystal Photoelectric Frequency Technology Ltd. (“JCP”), and Atlas Magnetics, Co. (“Atlas”).

Keylink is a 5% joint venture partner in our Shanghai assembly and test facilities. We sell products to, and purchase inventory from, companies owned by Keylink. In addition, our subsidiaries in China lease their manufacturing facilities in Shanghai from, and subcontract a portion of our manufacturing process (metal plating and environmental services) to, Keylink. We also pay a consulting fee to Keylink.

Warren Chen, a member of the Company’s board of directors, serves as a member of the Nuvoton board of directors. We purchase wafers from Nuvoton for use in our production process. We have an agreement to purchase approximately$5.7 million of wafers from Nuvoton that ends in the second quarter of 2026. We consider our relationship with Nuvoton to be mutually beneficial, and plan to continue our strategic alliance with Nuvoton.

JCP is a frequency control product manufacturing company from which we purchase material and in which we have made an equity investment that we account for using the equity method of accounting.

Atlas is an early stage privately held fabless wafer design company in which the Company holds a majority interest. The Company determined that Atlas is a variable interest entity (“VIE”), and the Company does not have the power to direct the activities that most significantly impact Atlas. The Company has therefore determined that the Company is not the primary beneficiary. Consequently, we do not consolidate the assets and liabilities of Atlas in the Company’s financial statements. For additional information related to Atlas see Note 14 - Equity Investments - Unconsolidated VIE, below.

In May 2025, the Company entered into a Joint Venture Agreement (the “Joint Venture Agreement”) with Global Advanced Packaging Test Limited (“GAPT”) to acquire a 43% interest and joint control of ATX Semiconductor SDN (“ATX”), a Malaysian private limited liability company, with the purpose of building synergies related to testing and packaging. ATX is a related party for the Company.

The tables below set forth the revenues, expenses, accounts receivable and accounts payable with our related parties:

Three Months Ended · Nine Months Ended
September 30, · September 30,
2025 · 2024 · 2025 · 2024
Keylink:
Net sales$(37)$15$(10)$3,373
Purchases$6$270$205$988
Plating, rental, and consulting expense$3,438$3,625$9,966$11,568
Nuvoton:
Net sales$3$2$56$35
Purchases$2,218$1,570$4,561$5,699
JCP:
Purchases$-$44$105$180
Atlas:
Purchases$2,055$1,327$8,793$2,632

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The table below sets forth accounts receivable from, and accounts payable to, related parties:

September 30, 2025 · December 31, 2024
Keylink:
Accounts receivable$24,568$23,796
Accounts payable$27,100$26,522
Nuvoton:
Accounts receivable$1$31
Accounts payable$1,255$543
JCP:
Accounts payable$-$64
Atlas:
Accounts payable$306$558

NOTE 14 - Equity Investments

The Company maintains equity investments in companies which are accounted for under the measurement alternative described in ASC 321-10-35-2 for equity securities that lack readily determinable fair values. As of September 30, 2025, the Company had$97.5 million of investments accounted for under the measurement alternative. During the nine months ended September 30, 2025, the Company recorded$28.0 million of non-cash mark-to-market adjustments related to the value of a previously made equity investments.

Unconsolidated VIE

During July 2021, the Company acquired an interest in Atlas, an early stage privately held fabless wafer design company located in the western United States. The Company’s initial investment in July 2021 was $10.0 million of preferred stock and a $5.0 million convertible promissory note. In April 2023, the Company acquired an additional interest in Atlas by purchasing $13.9 million of preferred stock and the Company’s previously held convertible note converted to $5.2 million of preferred stock. In June 2025, the Company acquired an additional interest in Atlas by purchasing $12.3 million of preferred stock. In connection with the additional investment in Atlas in June 2025, the Company recorded an upward mark-to-market adjustment of $33.3 million to adjust the value of the investment. The primary purpose for providing the additional investments in Atlas was to provide for continued access to developing technology with potential future benefit to the Company. At September 30, 2025, the Company owned more than 50% of Atlas. The Company determined that Atlas is a VIE and a related party. While the Company does own more than 50% of Atlas, according to the voting agreement governing the transaction, the Company does not have the power to control the board of directors or direct the activities that most significantly impact Atlas, including:

The hiring and firing of officers (i.e., CEO, CFO, etc.) – The hiring and firing of personnel responsible for making the key daily decisions and implementing the strategic operating direction will determine the success the Company has in their initiatives, thereby affecting the economic performance;

Determining the business plan and budget, including incurring additional indebtedness or issuing additional equity interests – As Atlas is thinly capitalized, the decisions around when and how to obtain cash will influence whether AM can continue operating; and

Determining the strategic operating direction of Atlas – The decisions made around the significant operating direction of Atlas will significantly impact the overall performance of the Company by determining where and how Atlas limited capital is spent without having significant revenues to keep the Company operating.

As the Company is not the primary beneficiary of Atlas, the Company did not consolidate the assets and liabilities of Atlas in our financial statements and instead accounts for the investment under the measurement alternative described in ASC 321-10-35-2 for equity securities that lack readily determinable fair value. As such, the Company’s investment is measured at cost less impairment, and adjusted to fair value if there are any observable price changes for identical or similar investment of the same issuer.

Atlas is funded through debt and equity. The Company's maximum exposure to loss is limited to its investment in Atlas and notes receivable and accrued interest owed to the Company from Atlas. The following is a summary of the Company’s holdings in Atlas, a VIE, in which we are not the primary beneficiary:

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September 30, 2025December 31, 2024
VIE total assets$42,774$20,273
VIE total liabilities11,2814,945
Diodes' equity in VIE$90,035$44,420
Diodes' note receivable from VIE9,0004,000
Diodes' interest receivable from VIE515245
Diodes' maximum exposure to loss$99,550$48,665

ATX Semiconductor SDN

In June 2025, the Company entered into a Joint Venture Agreement with GAPT to acquire a 43% interest and joint control of ATX, a Malaysian private limited liability company, with the purpose of building synergies related to testing and packaging.

The ATX joint venture meets the accounting definition of a joint venture where neither party has unilateral control of the entity and both parties have joint control over the decision-making process in ATX. As such, the Company uses the equity method to account for its share of the investment in ATX.

The carrying value of the equity investment is $30.0 million as of June 30, 2025, which represents the initial cost of the investment in ATX. The Company intends to record equity method earnings of the joint venture on a 3-month lag. As such, the Company will recognize the equity method earnings from the date of formation through June 30, 2025 within the Condensed Consolidated Statements of Operations for the three months ended September 30, 2025.

NOTE 15 – Acquisitions and Divestitures

TF Semiconductor Solutions, Inc. Agreement and Plan of Merger

On April 29, 2025, the Company entered into an agreement to sell its approximate 56.4% ownership stake in TF Semiconductor Solutions, Inc. to Microchip Technology Incorporated (“MCHP”) in exchange for shares of MCHP common stock at a value up to approximately $17.6 million, subject to earnout provisions, and certain closing adjustments. The transaction closed on May 8, 2025, resulting in a gain of $13.7 million.

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