Lumentum Holdings Inc. (“we,” “us,” “our”, “Lumentum” or the “Company”) is a leading provider of optical and photonic products and is recognized as an industry leader based on revenue and market share. Our products are essential to a range of cloud, artificial intelligence and machine learning (“AI/ML”), telecommunications, consumer, and industrial end-market applications. The Company operates in one reportable segment.

We disaggregate revenue by type of product, which are Components and Systems, and by geography. A Components product is defined as one of the individual building blocks that goes into creating a larger solution. It is typically not a complete product on its own but rather a specialized element that enables system functionality. This includes semiconductor laser chips, laser sub-assemblies, line subsystems and wavelength management systems. These are supplied to customers who then integrate them into their own full system solutions. Components represent foundational parts that support or enable that system’s operation and include a comprehensive portfolio of optical and photonic chips, components, laser light sources that are integrated into smartphones, subsystems supplied to cloud data center operators, AI/ML infrastructure providers, and network equipment manufacturer customers who are building cloud data center and network infrastructures.

A Systems product is defined as a complete, stand-alone product that delivers full functionality to the end customer. It is typically self-contained and ready to operate within a customer’s network or application environment. This includes optical modules, optical circuit switches, and industrial lasers such as short-pulse solid-state lasers and kilowatt-class fiber lasers. These products integrate multiple technologies and subsystems into a finished solution that directly addresses a customer’s needs. A system represents the end-product that can be deployed and used independently.

Our products enable high-capacity optical links for cloud computing, AI/ML workloads, and data center interconnect (“DCI”) applications, as well as for communications service provider networks. Our offerings support access (local), metro (intracity), long-haul (intercity and global), and submarine (undersea) network infrastructure. Our products serve enterprise network infrastructure needs, including storage area networks (“SANs”), local area networks (“LANs”), and wide area networks (“WANs”). Demand for our products is fueled by the ongoing expansion of network capacity required to support cloud services, AI/ML processing, streaming video, video conferencing, wireless and mobile connectivity, and the internet of things (“IoT”). In addition, our industrial laser products are used for precision material processing across diverse industries, including semiconductor and microelectronics fabrication, electric vehicle and battery production, metal cutting and welding, and advanced manufacturing that emphasize greater manufacturing precision, flexibility, and sustainability.

We have prepared the condensed consolidated financial statements in accordance with U.S. generally accepted accounting principles (“GAAP”), which requires management to make estimates and assumptions that affect the amounts reported in our condensed consolidated financial statements and accompanying notes. Management bases its estimates on historical experience and various other assumptions believed to be reasonable. Although these estimates are based on management’s best knowledge of current events and actions that may impact the Company in the future, actual results may be different from the estimates. Our critical accounting policies are those that affect our financial statements materially and involve difficult, subjective or complex judgments by management. These policies are inventory valuation, revenue recognition, income taxes, goodwill and business combinations.

Prior to fiscal year 2026, we operated in two reportable segments consisting of Cloud & Networking and Industrial Tech. During the first quarter of fiscal year 2026, we implemented a re-organization, and we are now managed as a single, integrated enterprise, with a unified management team overseeing operations across the entire company, rather than through discrete operating segments. The chief operating decision maker (“CODM”) is the Company’s Chief Executive Officer, who reviews financial information presented as a single enterprise for purposes of allocating resources and evaluating financial performance. Accordingly, following the reorganization, we determined we operate in a single reporting segment. Comparative prior period segment information has been updated to reflect the new segment structure and measures. The changes in our operating segments had no impact on our previously reported consolidated results of operations, financial position or cash flows. Refer to “Note 15. Operating Segments and Geographic Information” for more details.

Our business and operating results depend significantly on general market and economic conditions. The current global macroeconomic environment is volatile and continues to be adversely impacted by many factors including inflation, a dynamic supply chain and demand environment, changes in trade policies, including heightened, scheduled, or threatened tariffs, trade restrictions including for certain rare earth minerals, and signs of a fluctuating macroeconomic environment.

The Company is actively monitoring and assessing the ongoing global trade environment, particularly with respect to recent changes in trade restrictions and tariff regulations. We have assessed the potential impacts of heightened restrictions and tariffs on our allowance for credit losses, the carrying value of our goodwill and other long-lived assets, inventory valuation, and revenue recognition. While we have determined there was not a material impact to our condensed consolidated financial statements as of December 27, 2025 and for the three and six months ended December 27, 2025, import tariffs implemented by the U.S. and other countries, as currently in effect and/or proposed, could have a material impact on our results for the remainder of fiscal year 2026 and in the future. The impact of tariffs is dependent upon negotiations with customers and suppliers and other mitigation efforts and potential further changes in global trade policies, including higher tariffs in the U.S. or other countries.

During the three months ended December 27, 2025, the last reported sale price of the Company’s common stock was at least 130% of the applicable conversion price of each series of our convertible notes, which includes 2032 Notes, 2029 Notes, 2028 Notes, and 2026 Notes (collectively referred to as the “Notes”) for at least 20 trading days during the 30 consecutive trading-day period ended on December 27, 2025. Therefore, the Notes are convertible at the option of the holders, and we are required to satisfy the conversion obligation with respect to any such converted series of Notes by paying cash equal to the principal amount of such converted series of Notes, and paying or delivering, as the case maybe, cash, shares of common stock or a combination of cash and shares of common stock, at our election, with respect to any conversion value in excess thereof. Accordingly, pursuant to ASC 470-20 under U.S. GAAP, although the applicable contractual maturity dates of these Notes extend beyond 12 months from the balance sheet date, we are required to classify our 2028 Notes, 2029 Notes and 2032 Notes, that have an aggregate carrying value of $2,714.2 million, as current portion of long-term debt as of December 27, 2025. Only the 2026 Notes with carrying value of $468.3 million mature within the next 12 months.


	December 27, 2025				June 28, 2025
	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
2032 Notes	$	1,255.3	$	2,840.8	$	—	$	—
2029 Notes	600.6		3,400.1		600.2		925.5
2028 Notes	858.3		2,584.6		857.7		890.2
2026 Notes	468.3		1,844.6		1,048.3		1,233.3
	$	3,182.5	$	10,670.1	$	2,506.2	$	3,049.0

The 2028 Notes, 2029 Notes and 2032 Notes are held by more than 60 unique holders and no holders had individual aggregate principal values greater than $505.0 million at December 27, 2025. To the extent Note holders elect to convert all or a significant portion of the Notes within a short period of time, our liquidity would be adversely impacted, and the Note holders’ ability to exercise their conversion right raises a substantial doubt that we could continue as a going concern. If we receive a significant number of requests for early conversion of Notes, we would utilize existing cash, cash equivalents and short-term investments, together with available borrowings under our existing revolving credit facility, cash flows from operations, and proceeds from one or more potential new financings to settle the principal amount of such converted Notes in cash, with any excess conversion value thereof to be settled in cash, shares of common stock, or a combination of cash and shares of common stock, at our election.

However, the fair value of the Notes, which would be the estimated value the holders would receive if they sell their Notes in the bond market, is generally higher than the value the holders would receive upon early conversion. The fair value is generally higher than the conversion value due to the embedded call option in the Notes which has time left until the Notes mature. Conversion also requires a holder to be subject to a holding period in which they are subject to further volatility. Therefore, historically, the holders’ requests for early conversion of our Notes have not been significant prior to the three-month period immediately preceding maturity.

We utilize a 52-53 week fiscal year ending on the Saturday closest to June 30th. Every fifth or sixth fiscal year will have a 53-week period. The additional week in a 53-week year is added to the third quarter, making such quarter consist of 14 weeks. Our fiscal year 2026 is a 52-week year ending on June 27, 2026, with the quarter ended December 27, 2025 being a 13-week quarterly period. Our fiscal year 2025 was a 52-week year that ended on June 28, 2025, with the quarter ended December 28, 2024 being a 13-week quarterly period.

The condensed consolidated financial statements and accompanying notes should be read in conjunction with the audited consolidated financial statements and accompanying notes included in our Annual Report on Form 10-K for the fiscal year ended June 28, 2025. There were no significant changes to our accounting policies during the six months ended December 27, 2025, except as noted below:

In accordance with the authoritative guidance on accounting for income taxes, we recognize income taxes using an asset and liability approach. This approach requires the recognition of taxes payable or refundable for the current year and deferred tax liabilities and assets for the future tax consequences of events that have been recognized in our consolidated financial statements or tax returns. The measurement of current and deferred taxes is based on provisions of the enacted tax law, and the effects of future changes in tax laws or rates are not anticipated.

The authoritative guidance provides for recognition of deferred tax assets if the realization of such deferred tax assets is more likely than not to occur based on an evaluation of both positive and negative evidence and the relative weight of the evidence. We consider future growth, forecasted earnings, future taxable income, the mix of earnings in the jurisdictions in which we operate, historical earnings, taxable income in prior years, if carry-back is permitted under the law, and prudent and feasible tax planning strategies in determining the need for a valuation allowance.

In the event we determine that we would not be able to realize all or part of our net deferred tax assets in the future, an adjustment to the deferred tax assets valuation allowance would be charged to earnings in the period in which we make such a determination, or goodwill would be adjusted at our final determination of the valuation allowance related to an acquisition within the measurement period. Conversely, if we later determine that it is more likely than not that all or a portion of the net deferred tax assets will be realized, we would reverse the applicable portion of the previously established valuation allowance. A release of valuation allowance decreases income tax expense in the period of release, increases net income, and reduces our effective tax rate. Such releases may be material to our financial statements depending on the size of the deferred tax assets involved.

In the fourth quarter of fiscal year 2025, we released $153.1 million of valuation allowances on our UK deferred tax assets after we considered all available positive and negative evidence related to our UK subsidiary. We analyzed the UK subsidiary’s historical operating results, projected future taxable income, tax planning strategies, and reversals of deferred tax liabilities, and determined that the weight of available objectively verifiable positive evidence supported the realizability of the UK deferred tax assets. In weighing the available evidence, more weight was placed upon our forecasts of future taxable income than on the history of pre-tax losses as such losses were generated under our prior UK business operating model which will no longer be in effect beginning with fiscal year 2026, and the guarantee of a positive operating margin as we effectuated an internal restructuring at the end of fiscal year 2025. Further, the most significant deferred tax asset in the UK is the net operating loss carryforward. Under UK tax law, net operating losses may be carried forward indefinitely, and we have considered the indefinite carryforward period to be positive evidence.

We are subject to income tax audits by the respective tax authorities of the jurisdictions in which we operate. The determination of our income tax liabilities in each of these jurisdictions requires the interpretation and application of complex, and sometimes uncertain, tax laws and regulations. The authoritative guidance on accounting for income taxes prescribes both recognition and measurement criteria that must be met for the benefit of a tax position to be recognized in the financial statements. If a tax position taken, or expected to be taken, in a tax return does not meet such recognition or measurement criteria, an unrecognized tax benefit liability is recorded. If we ultimately determine that an unrecognized tax benefit liability is no longer necessary, we reverse the liability and recognize a tax benefit in the period in which it is determined that the unrecognized tax benefit liability is no longer necessary.

Our income tax provision is highly dependent on the geographic distribution of our worldwide earnings or losses, tax laws and regulations in various jurisdictions, tax incentives, the availability of tax credits and loss carryforwards, and the effectiveness of our tax planning strategies. The application of tax laws and regulations is subject to legal and factual interpretation, judgment and uncertainty. Tax laws themselves are subject to change as a result of changes in fiscal policy, changes in legislation, and the evolution of regulations and court rulings and tax audits.

The recognition and measurement of current taxes payable or refundable and deferred tax assets and liabilities requires that we make certain estimates and judgments. Changes to these estimates, including changes in judgment regarding the realizability of deferred tax assets and the need for or release of valuation allowances, may have a material impact on our tax provision, net income, and effective tax rate in a future period.