FOR RELEASE: January 7, 2026

•Net sales increased 2.1% to $348.6 million

•EBITDA margin of 11.4% and adjusted EBITDA margin of 13.2%

•Diluted earnings per share of $0.77 and adjusted diluted earnings per share of $1.02

•Company updates fiscal 2026 outlook for net sales and adjusted diluted earnings per share

MINNEAPOLIS, MN, January 7, 2026 – Apogee Enterprises, Inc. (Nasdaq: APOG), a leading provider of architectural building products and services, as well as high-performance coated materials used in a variety of applications, today reported its results for the third quarter of fiscal 2026, ended November 29, 2025. The Company reported the following selected financial results:

“I’m proud of our team’s disciplined execution and agility during this transition. Despite a challenging environment, we delivered results in line with expectations and remain focused on serving customers with innovative products and exceptional service. Our strong operational foundation and balance sheet position us to navigate near-term challenges and drive sustainable long-term value,” said Donald Nolan, Executive Chair and CEO.

Consolidated Results (Third Quarter Fiscal 2026 compared to Third Quarter Fiscal 2025)

•Consolidated net sales increased 2.1%, to $348.6 million, driven by $18.4 million of inorganic sales contribution from the acquisition of UW Solutions and favorable product mix, partially offset by lower volume.

•Gross margin decreased to 23.8%, compared to 26.1%, primarily due to the impact of lower volume and price, and higher aluminum, restructuring and health insurance costs, partially offset by lower incentive compensation expense.

•Selling, general and administrative (SG&A) expense as a percent of net sales decreased to 16.7%, compared to 17.7%. The decrease was primarily due to lower acquisition-related costs and lower incentive compensation expense, partially offset by higher amortization expense related to the UW Solutions acquisition and CEO transition costs.

•Operating income declined to $24.9 million from $28.6 million, and operating margin decreased 130 basis points to 7.1%.

•Adjusted EBITDA increased to $46.1 million, compared to $45.8 million, and adjusted EBITDA margin decreased to 13.2%, compared to 13.4%. The decrease in adjusted EBITDA margin was primarily driven by lower volume and price, higher aluminum and health insurance costs, partially offset by lower incentive compensation expense and benefits from cost savings related to Fortify Phase 2.

•Interest expense increased to $3.2 million, primarily due to a higher average debt balance resulting from the acquisition of UW Solutions in November 2024.

•Other income was $2.5 million, compared to $0.1 million. The change was primarily due to a $2.1 million gain related to a New Market Tax Credit recognized in the current period.

•Income tax expense as a percentage of earnings before income tax was 31.4%, compared to 24.1%. The increase in the effective tax rate was primarily driven by an increase in tax expense for discrete items.

Segment Results (Third Quarter Fiscal 2026 compared to Third Quarter Fiscal 2025)

Architectural Metals net sales were $124.4 million, compared to $138.0 million, primarily due to lower volume, partially offset by favorable price and product mix. Adjusted EBITDA was $16.8 million, or 13.5% of net sales, compared to $17.5 million, or 12.7% of net sales. The higher adjusted EBITDA margin was primarily driven by favorable productivity including cost savings related to Fortify Phase 2, lower incentive compensation expense, and favorable price and product mix, partially offset by lower volume.

Architectural Services net sales were $105.2 million compared to $104.9 million, primarily due to increased volume. Adjusted EBITDA was $10.2 million, or 9.7% of net sales, compared to $10.0 million, or 9.5% of net sales. The increase in adjusted EBITDA margin was primarily driven by lower incentive compensation expense, partially offset by project mix. Segment backlog1 at the end of the quarter was $774.7 million, compared to $792.3 million at the end of the second quarter.

Architectural Glass net sales were $70.9 million, compared to $70.2 million, primarily due to increased volume and favorable mix, partially offset by lower price driven by end-market demand. Adjusted EBITDA was $11.5 million, or 16.3% of net sales, compared to $13.2 million, or 18.8% of net sales. The decrease in adjusted

1 Backlog is a non-GAAP financial measure. See Use of Non-GAAP Financial Measures later in this press release for more information.

EBITDA margin was primarily driven by lower price and higher material costs, partially offset by higher volume, favorable mix and lower incentive compensation expense.

Performance Surfaces net sales were $53.0 million, compared to $33.2 million. Net sales included $18.4 million of inorganic sales contribution from the acquisition of UW Solutions and organic growth of 4.3%. Adjusted EBITDA was $11.9 million, or 22.5% of net sales compared to $7.8 million, or 23.6% of net sales. The decrease in adjusted EBITDA margin was primarily driven by the dilutive impact of lower adjusted EBITDA margin from UW Solutions and unfavorable productivity, partially offset by favorable product mix and price.

Corporate and other adjusted EBITDA expense was $4.3 million, compared to $2.7 million, primarily driven by higher health insurance costs.

Net cash provided by operating activities in the third quarter was $29.3 million, compared to $31.0 million in the prior-year period. Fiscal year-to-date, net cash provided by operating activities was $66.6 million, compared to $95.1 million in the prior-year period. The year-to-date change was primarily driven by lower net earnings and an increase in cash used for working capital, including a net payment of $13.7 million for the settlement of an arbitration award. Fiscal year-to-date, net cash used in investing activities was $15.8 million, primarily related to capital expenditures. Fiscal year-to-date, the Company returned $16.6 million of cash to shareholders through dividend payments. Quarter-end long-term debt decreased $15 million from the end of the second quarter to $255.0 million, which decreased the Consolidated Leverage Ratio2 (as defined in the Company’s credit agreement) to 1.4x at the end of the quarter.

As previously announced, in the first quarter of fiscal 2026, the Company began the second phase of Project Fortify (referred to as "Project Fortify Phase 2" or "Phase 2") to drive further cost efficiencies, primarily in the Architectural Services and Architectural Metals Segments. The Company is expanding the scope of Phase 2 to include further restructuring actions, primarily in Architectural Metals and Corporate. With the expanded scope, the Company now expects the actions of Phase 2 to incur a total of approximately $28 million to $29 million in pre-tax charges, and deliver estimated annualized pre-tax cost savings of approximately $25 million to $26 million. During the third quarter, the Company incurred $5.1 million of pre-tax costs associated with Phase 2. The Company expects the actions associated with Phase 2 to be substantially completed by the end of the fourth quarter of fiscal 2026.

The Company now expects net sales to be approximately $1.39 billion, diluted EPS in the range of $2.49 to $2.65 and adjusted diluted EPS in the range of $3.40 to $3.50. This includes a projected unfavorable EPS impact from tariffs of approximately $0.30. The Company’s revised outlook assumes an adjusted effective tax rate of approximately 27%. The Company now assumes capital expenditures between $25 million to $30 million.

The Company will host a conference call on January 7, 2026, at 8:00 a.m. Central Time to discuss this earnings release. This call will be webcast and is available in the Investor Relations section of the Company’s website, along with presentation slides, at https://www.apog.com/events-and-presentations. A replay and transcript of the webcast will be available on the Company’s website following the conference call.

2 Consolidated Leverage Ratio is a non-GAAP financial measure. See Use of Non-GAAP Financial Measures later in this press release for more information.

Apogee Enterprises, Inc. (Nasdaq: APOG) is a leading provider of architectural building products and services, as well as high-performance coated materials used in a variety of applications. Headquartered in Minneapolis, MN, our portfolio of industry-leading products and services includes architectural glass, windows, curtainwall, storefront and entrance systems, integrated project management and installation services, and high-performance coatings that provide protection, innovative design, and enhanced performance. For more information, visit www.apog.com.

Management uses non-GAAP measures to evaluate the Company’s historical and prospective financial performance, measure operational profitability on a consistent basis, as a factor in determining executive compensation, and to provide enhanced transparency to the investment community. Non-GAAP measures should be viewed in addition to, and not as a substitute for, the reported financial results of the Company prepared in accordance with GAAP. Other companies may calculate these measures differently, limiting the usefulness of the measures for comparison with other companies. This release and other financial communications may contain the following non-GAAP measures:

•Adjusted net earnings, adjusted diluted EPS, and adjusted EBITDA are used by the Company to provide meaningful supplemental information about its operating performance by excluding amounts that are not considered part of core operating results to enhance comparability of results from period to period.

•Adjusted EBITDA represents adjusted net earnings before interest, taxes, depreciation, and amortization, and adjusted EBITDA margin is adjusted EBITDA as a percentage of net sales. We use adjusted EBITDA and adjusted EBITDA margin to assess segment performance and make decisions about the allocation of operating and capital resources by analyzing recent results, trends, and variances of each segment in relation to forecasts and historical performance.

•Consolidated Leverage Ratio is calculated as Consolidated Funded Indebtedness minus Unrestricted Cash at the end of the current period, divided by Consolidated EBITDA (calculated as EBITDA plus certain non-cash charges and allowed addbacks, less certain non-cash income, plus the pro forma effect of acquisitions and certain pro forma run-rate cost savings for acquisitions and dispositions, as applicable for the trailing twelve months ended as of the current period). All capitalized and undefined terms used in this bullet are defined in the Company’s credit agreement dated July 19, 2024. The Company is unable to present a quantitative reconciliation of forward-looking expected Consolidated Leverage Ratio to its most directly comparable forward-looking GAAP financial measure because such information is not available, and management cannot reliably predict all the necessary components of such GAAP financial measure without unreasonable effort or expense. In addition, the Company believes such reconciliation would imply a degree of precision that would be confusing or misleading to investors.

•Backlog is an operating measure used by management to assess future potential sales revenue. Backlog is defined as the dollar amount of signed contracts or firm orders, generally as a result of a competitive bidding process, which is expected to be recognized as revenue. It is most meaningful for the Architectural Services segment, due to the longer-term nature of their projects. Backlog is not a term defined under U.S. GAAP and is not a measure of contract profitability. Backlog should not be used as the sole indicator of future revenue because the Company has a substantial number of projects with short lead times that book-and-bill within the same reporting period that are not included in backlog.

This press release contains “forward-looking statements” within the meaning of the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995. The words “may,” “believe,” “expect,” “anticipate,” “intend,” “estimate,” “forecast,” “project,” “should,” “will,” “continue,” and similar expressions are intended to identify “forward-looking statements”. These statements reflect Apogee management’s expectations or beliefs as of the date of this release. The Company undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

All forward-looking statements are qualified by factors that may affect the results, performance, financial condition, prospects and opportunities of the Company, including the following: (A) North American and global economic conditions, including the cyclical nature of the North American and Latin American non-residential construction industries and the potential impact of an economic downturn or recession; (B) U.S. and global instability and uncertainty arising from events outside of our control; (C) actions of new and existing competitors; (D) departure of key personnel and ability to source sufficient labor; (E) product performance, reliability and quality issues; (F) project management and installation issues that could affect the profitability of individual contracts; (G) dependence on a relatively small number of customers in one operating segment; (H) financial and operating results that could differ from market expectations; (I) self-insurance risk related to a material product liability or other events for which the Company is liable; (J) maintaining our information technology systems and potential cybersecurity threats; (K) cost of regulatory compliance, including environmental regulations; (L) supply chain disruptions, including fluctuations in the availability and cost of materials used in our products and the impact of trade policies and regulations, including existing and potential future tariffs; (M) integration and future operating results of acquisitions, including but not limited to the acquisition of UW Solutions, and management of acquired contracts; (N) impairment of goodwill or indefinite-lived intangible assets; (O) our ability to successfully manage and implement our enterprise strategy; (P) our ability to maintain effective internal controls over financial reporting; (Q) our judgments regarding accounting for tax positions and resolution of tax disputes; (R) the impacts of cost inflation and interest rates; and (S) the impact of changes in capital and credit markets on our liquidity and cost of capital. The Company cautions investors that actual future results could differ materially from those described in the forward-looking statements and that other factors may in the future prove to be important in affecting the Company’s results, performance, prospects, or opportunities. New factors emerge from time to time, and it is not possible for management to predict all such factors, nor can it assess the impact of each factor on the business or the extent to which any factor, or a combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements. More information concerning potential factors that could affect future financial results is included in the Company’s Annual Report on Form 10-K and in subsequent filings with the U.S. Securities and Exchange Commission.

Jeremy Steffan

Vice President, Investor Relations & Communications

952.346.3502

ir@apog.com

•N/M - Indicates calculation is not meaningful.

•Segment net sales is defined as net sales for a certain segment and includes revenue related to intersegment transactions.

•Net sales intersegment eliminations are reported separately to exclude these sales from our consolidated total.

•Adjusted EBITDA represents adjusted net earnings before interest, taxes, depreciation, and amortization.