ADTRAN Holdings, Inc.

Previous wording

On July 21, 2026, we terminated the Former Credit Agreement with Wells Fargo. All outstanding principal amounts thereunder were repaid, and we entered into a new five-year, $350.0 million credit agreement with JPMorgan Chase Bank, N.A. (the “New Credit Agreement”) on such date. As with our Former Credit Agreement, the New Credit Agreement governs a portion of our indebtedness and contains restrictive covenants that limit our ability to engage in activities that may be in our long-term best interest. Our failure to comply with the restrictive covenants in our Former Credit Agreement has resulted in prior events of default, and a failure to comply with the restrictive covenants in the New Credit Agreement may in the future result in an event of default that, if not cured or waived, results in the acceleration of all of our debt. Specifically, our New Credit Agreement contains various restrictive covenants which include, among others, provisions limiting our ability to:

Current wording

On July 21, 2026, we terminated the Former Credit Agreement with Wells Fargo. All outstanding principal amounts thereunder were repaid, and we entered into a new five-year, $350.0 million credit agreement with JPMorgan Chase Bank, N.A. (the "Credit Agreement") on such date. As with our Former Credit Agreement, the Credit Agreement governs a portion of our indebtedness and contains restrictive covenants that limit our ability to engage in activities that may be in our long-term best interest. Our failure to comply with the restrictive covenants in our Former Credit Agreement has resulted in prior events of default, and a failure to comply with the restrictive covenants in the Credit Agreement may in the future result in an event of default that, if not cured or waived, results in the acceleration of all of our debt. Specifically, our Credit Agreement contains various restrictive covenants which include, among others, provisions limiting our ability to:

Previous wording

In addition, the New Credit Agreement contains customary events of default, such as misrepresentation and a default in the performance or observance of any covenant (subject to customary cure periods and materiality thresholds for certain covenants).

Current wording

In addition, the Credit Agreement contains customary events of default, such as misrepresentation and a default in the performance or observance of any covenant (subject to customary cure periods and materiality thresholds for certain covenants).

Previous wording

In addition, certain covenants in the New Credit Agreement, require us, among other things, to:

Current wording

In addition, certain covenants in the Credit Agreement, require us, among other things, to:

Previous wording

Our failure to comply with the restrictive covenants in our Former Credit Agreement has resulted in prior events of default, and a failure to comply with the restrictive covenants in the New Credit Agreement may in the future result in an event of default that accelerates the payment of such debt, which would likely have a material adverse impact on our financial condition and results of operations. In addition, an event of default under the New Credit Agreement would, if not cured or waived, permit the lenders to terminate all commitments to extend further credit under the applicable facility. Furthermore, if we were unable to repay the amounts due and payable under the New

Current wording

Our failure to comply with the restrictive covenants in our Former Credit Agreement has resulted in prior events of default, and a failure to comply with the restrictive covenants in the Credit Agreement may in the future result in an event of default that accelerates the payment of such debt, which would likely have a material adverse impact on our financial condition and results of operations. In addition, an event of default under the Credit Agreement would, if not cured or waived, permit the lenders to terminate all commitments to extend further credit under the applicable facility. Furthermore, if we were unable to repay the amounts due and payable under the Credit

Previous wording

Credit Agreement, the lenders could proceed against the collateral granted to them to secure that indebtedness. In the event our lenders accelerate the repayment of our borrowings, we and our subsidiaries may not have sufficient assets to repay that indebtedness. In addition, these defaults could impair our ability to access debt and equity capital markets. For additional information on our debt covenants, see "Liquidity and Capital Resources" in Part I, Item 2 of this report.

Current wording

Agreement, the lenders could proceed against the collateral granted to them to secure that indebtedness. In the event our lenders accelerate the repayment of our borrowings, we and our subsidiaries may not have sufficient assets to repay that indebtedness. In addition, these defaults could impair our ability to access debt and equity capital markets. For additional information on our debt covenants, see "Liquidity and Capital Resources" in Part I, Item 2 of this report.

Previous wording

On July 21, 2026, the Company terminated the Former Credit Agreement and entered into the New Credit Agreement. As of the date of this filing, the Company had total outstanding borrowings under the New Credit Agreement of $48.0 million, leaving $302.0 million available for future borrowings.

Current wording

On July 21, 2026, the Company terminated the Former Credit Agreement and entered into the Credit Agreement. As of the date of this filing, the Company had total outstanding borrowings under the Credit Agreement of $83.0 million, leaving $261.7 million available for future borrowings.

Previous wording

limits our ability to assume debt in a future acquisition. Specifically, our New Credit Agreement limits the amount of debt we can assume in an acquisition. This could limit our ability to take advantage of significant business opportunities, such as acquisition opportunities, and to react to changes in market or industry conditions;

Current wording

limits our ability to assume debt in a future acquisition. Specifically, our Credit Agreement limits the amount of debt we can assume in an acquisition. This could limit our ability to take advantage of significant business opportunities, such as acquisition opportunities, and to react to changes in market or industry conditions;

Previous wording

limits our ability to borrow additional money. Specifically, our New Credit Agreement limits our ability to borrow additional money, which could limit our ability to fund working capital, capital expenditures, research and development and other general corporate needs in the future.

Current wording

limits our ability to borrow additional money. Specifically, our Credit Agreement limits our ability to borrow additional money, which could limit our ability to fund working capital, capital expenditures, research and development and other general corporate needs in the future.

Previous wording

Our ability to satisfy our debt obligations and to refinance our indebtedness in the future is dependent upon our future performance and other risk factors discussed in this section. We cannot assure you that we will maintain a level of cash flows from operating activities sufficient to permit us to pay the principal, premium, if any, and interest on our indebtedness. If we fail to pay interest on, or repay, our borrowings under the New Credit Agreement when required, we will be in default under the applicable loans, and may also suffer an event of default under the terms of other borrowing arrangements that we may enter into from time to time. In addition, our failure to repurchase the 2030 Notes or to pay the cash amounts due upon conversion when required will constitute a default under the indenture. We may be forced to further reduce or delay capital expenditures, sell assets or operations, seek additional capital or restructure or refinance our indebtedness. We cannot assure you that we would be able to take any of these actions, that these actions would be successful and permit us to meet our scheduled obligations or that these actions would be permitted under the terms of our current or future debt agreements. If we are unable to achieve sufficient operating results and resources, we could face substantial liquidity challenges and might be required to dispose of material assets or operations to meet our debt service and other obligations. We may not be able to consummate those dispositions or obtain sufficient proceeds from those dispositions to meet our debt service and other obligations when due. Any of these events could have a material adverse effect on our business, results of operations and financial condition.

Current wording

Our ability to satisfy our debt obligations and to refinance our indebtedness in the future is dependent upon our future performance and other risk factors discussed in this section. We cannot assure you that we will maintain a level of cash flows from operating activities sufficient to permit us to pay the principal, premium, if any, and interest on our indebtedness. If we fail to pay interest on, or repay, our borrowings under the Credit Agreement when required, we will be in default under the applicable loans, and may also suffer an event of default under the terms of other borrowing arrangements that we may enter into from time to time. In addition, our failure to repurchase the 2030 Notes or to pay the cash amounts due upon conversion when required will constitute a default under the indenture. We may be forced to further reduce or delay capital expenditures, sell assets or operations, seek additional capital or restructure or refinance our indebtedness. We cannot assure you that we would be able to take any of these actions, that these actions would be successful and permit us to meet our scheduled obligations or that these actions would be permitted under the terms of our current or future debt agreements. If we are unable to achieve sufficient operating results and resources, we could face substantial liquidity challenges and might be required to dispose of material assets or operations to meet our debt service and other obligations. We may not be able to consummate those dispositions or obtain sufficient proceeds from those dispositions to meet our debt service and other obligations when due. Any of these events could have a material adverse effect on our business, results of operations and financial condition.

Previous wording

In recent years, international market conditions and the international regulatory environment have been increasingly affected by competition among countries and geopolitical frictions. Since early 2025, the U.S. has introduced trade policy actions that increased import tariffs across a wide range of countries at various rates, with certain exemptions. On February 20, 2026, the United States Supreme Court issued a ruling striking down certain tariffs previously imposed under the IEEPA. The ultimate availability, timing, and amount of any potential refunds of such tariffs remain highly uncertain and are subject to further legal, regulatory, and administrative developments. Following the Supreme Court’s decision, the U.S. presidential administration invoked Section 122 of the Trade Act of 1974 to impose new tariffs of 10% on imports from all countries, in addition to any existing non-IEEPA tariffs (including tariffs on semiconductors, which are expected to increase in June 2027), and also amended tariffs on imports of copper, steel and aluminum previously imposed under Section 232 of the Trade Expansion Act of 1962, effective April 6, 2026, to apply differentiated tariff rates based on metal content and the use of U.S.-origin metal inputs. By its terms, the Section 122 tariff expired on July 24, 2026. On July 23, 2026, the Office of the U.S. Trade Representative ("USTR") announced a final action under Section 301 of the Trade Act of 1974 imposing additional ad valorem tariffs of 10% or 12.5% on most goods imported from approximately 60 foreign trading partners, which together account for nearly all U.S. import trade. Under the final action, trading partners that have adopted, or have committed to adopt and effectively enforce, a qualifying forced labor import prohibition are subject to the lower 10% tariff rate, while trading partners that have not adopted such a prohibition are subject to the 12.5% rate. Certain categories of goods are excluded from the new tariffs, including articles already subject to duties under Section 232 of the Trade Expansion Act of 1962, and certain other products identified by USTR as warranting exemption.

Current wording

Act of 1962, effective April 6, 2026, to apply differentiated tariff rates based on metal content and the use of U.S.-origin metal inputs. On July 23, 2026, the USTR announced a final action under Section 301 of the Trade Act of 1974 imposing additional ad valorem tariffs of 10% or 12.5% on most goods imported from approximately 60 foreign trading partners, which together account for nearly all U.S. import trade. Under the final action, trading partners that have adopted, or have committed to adopt and effectively enforce, a qualifying forced labor import prohibition are subject to the lower 10% tariff rate, while trading partners that have not adopted such a prohibition are subject to the 12.5% rate. Certain categories of goods are excluded from the new tariffs, including articles already subject to duties under Section 232 of the Trade Expansion Act of 1962, and certain other products identified by USTR as warranting exemption.