Exhibit 99.1

Leslie’s, Inc. Announces Fourth Quarter & Fiscal 2025 Financial Results

Fourth quarter sales and adjusted EBITDA exceed high-end of guided range

Store and DC optimization to include the closure of 80 to 90 underperforming stores and one distribution center yielding immediate EBITDA improvement for FY26

Available liquidity of approximately $168 million and no borrowings under ABL

Improved inventory efficiency with ~10% year-over-year reduction

PHOENIX – December 2, 2025 – Leslie’s, Inc. (NASDAQ: LESL), the largest and most trusted direct-to-customer brand in the U.S. pool and spa care industry serving residential customers and pool professionals nationwide, today announced its financial results for both the fiscal fourth quarter and fiscal year 2025.  

“We delivered fourth quarter sales and adjusted EBITDA above the high end of our previously established guidance range and are today announcing the closure of 80-90 underperforming stores and one distribution center as we work with speed and urgency to improve Leslie's operations and establish a clear path to financial recovery,” said Jason McDonell, Chief Executive Officer of Leslie’s. “In addition, we will continue to focus diligently on rightsizing the cost base of our business by reducing inventory 10% year over year and delivering direct cost reductions of $7-$12 million which we will invest back into our customer price value proposition.”

McDonell continued, “These initiatives represent the next phase of our strategic transformation plan, focused on strengthening our balance sheet, optimizing our cost structure, and rebuilding stakeholder confidence. We remain committed to executing this strategic transformation with urgency and delivering the results our customers, employees, and investors expect.”

Fiscal Fourth Quarter Ended October 4, 2025 Results

Fiscal 2025 Results

Balance Sheet Highlights

Full Year Fiscal 2026 Expectations

As is typical for our business, we anticipate generating the majority of our sales and earnings during the second half of the year driven by the seasonal nature of our industry. The guide provided is for the 52 week period of Fiscal Year 2026 and includes the impact on revenue of the store closures noted above as well as the addback of expected costs incurred with these closures.

*Note: A reconciliation of non-GAAP guidance measures to corresponding GAAP measures is not available on a forward-looking basis without unreasonable effort due to the uncertainty of expenses that may be incurred in the future, although it is important to note that these factors could be material to our results computed in accordance with GAAP.

Conference Call Details

The company will host a conference call at 5:00 p.m. Eastern time on December 2, 2025 to discuss the financial results for the fourth quarter and full year fiscal 2025 as well as progress against the company’s strategic transformation initiatives. A live audio webcast of the conference call will be available online at https://ir.lesliespool.com/.

A replay of the conference call will be available within approximately three hours of the conclusion of the call and will be available on the company’s Investor Relations website for 180 days.

About Leslie’s

Founded in 1963, Leslie’s is the largest and most trusted direct-to-customer brand in the U.S. pool and spa care industry serving residential customers and pool professionals nationwide. The company serves the aftermarket needs of residential and professional consumers with an extensive and largely exclusive assortment of essential pool and spa care products. The company operates an integrated ecosystem of over 1,000 physical locations and a robust digital platform, enabling consumers to engage with Leslie’s whenever, wherever, and however they prefer to shop. Its dedicated team of associates, pool and spa care experts, and experienced service technicians are passionate about empowering Leslie’s consumers with the knowledge, products, and solutions necessary to confidently maintain and enjoy their pools and spas.

Use of Non-GAAP Financial Measures and Other Operating Measures

In addition to reporting financial results in accordance with accounting principles generally accepted in the United States (“GAAP”), we use certain non-GAAP financial measures and other operating measures, including comparable sales growth, Adjusted EBITDA, Adjusted net income (loss), and Adjusted diluted earnings per share, to evaluate the effectiveness of our business strategies, to make budgeting decisions, and to compare our performance against that of other peer companies using similar measures. These non-GAAP financial measures and other operating measures should not be considered in isolation or as substitutes for our results as reported under GAAP. In addition, these non-GAAP financial measures and other operating measures are not calculated in the same manner by all companies, and accordingly, are not necessarily comparable to similarly titled measures of other companies and may not be appropriate measures for performance relative to other companies.

Comparable Sales Growth

We measure comparable sales growth as the increase or decrease in sales recorded by the comparable base in any reporting period, compared to sales recorded by the comparable base in the prior reporting period. The comparable base includes sales through our locations and through our e-commerce websites and third-party marketplaces. Comparable sales growth is a key measure used by management and our board of directors to assess our financial performance.

Adjusted EBITDA

Adjusted EBITDA is defined as earnings before interest (including amortization of debt issuance costs), taxes, depreciation and amortization, equity-based compensation expense, executive transition costs, severance, strategic project costs, merger and acquisition costs, and other non-recurring, non-cash or discrete items. Adjusted EBITDA is a key measure used by management and our board of directors to assess our financial performance. Adjusted EBITDA is also frequently used by analysts, investors, and other interested parties to evaluate companies in our industry, when considered alongside other GAAP measures. We use Adjusted EBITDA to supplement GAAP measures of performance to evaluate the effectiveness of our business strategies, to make budgeting decisions, and to compare our performance against that of other companies using similar measures.

Adjusted EBITDA is not a recognized measure of financial performance under GAAP but is used by some investors to determine a company’s ability to service or incur indebtedness. Adjusted EBITDA is not calculated in the same manner by all companies, and accordingly, is not necessarily comparable to similarly titled measures of other companies and may not be an appropriate measure for performance relative to other companies. Adjusted EBITDA should not be construed as an indicator of a company’s operating performance in isolation from, or as a substitute for, net income (loss), cash flows from operations or cash flow data, all of which are prepared in accordance with GAAP. We have presented Adjusted EBITDA solely as supplemental disclosure because we believe it allows for a more complete analysis of results of operations. Adjusted EBITDA is not intended to represent, and should not be considered more meaningful than, or as an alternative to, measures of operating performance as determined in accordance with GAAP. In the future, we may incur expenses or charges such as those added back to calculate Adjusted EBITDA. Our presentation of Adjusted EBITDA should not be construed as an inference that our future results will be unaffected by these items.

Adjusted Net Income (Loss) and Adjusted Diluted Earnings (Loss) per Share

Adjusted net income (loss) and Adjusted diluted earnings (loss) per share are additional key measures used by management and our board of directors to assess our financial performance. Adjusted net income (loss) and Adjusted diluted earnings (loss) per share are also frequently used by analysts, investors, and other interested parties to evaluate companies in our industry, when considered alongside other GAAP measures.

Adjusted net income (loss) is defined as net income (loss) adjusted to exclude equity-based compensation expense, executive transition costs, severance, strategic project costs, merger and acquisition costs, change in valuation allowance for deferred taxes, and other non-recurring, non-cash, or discrete items. Adjusted diluted earnings (loss) per share is defined as Adjusted net income (loss) divided by the diluted weighted average number of common shares outstanding.

Forward-Looking Statements

This press release contains forward-looking statements about us and our industry that involve substantial risks and uncertainties. All statements other than statements of historical fact contained in this press release, including statements regarding our future results of operations or financial condition, business strategy, including our strategic transformation plan, value proposition, dispositions, legal proceedings, competitive advantages, market size, growth opportunities, industry expectations, plans and objectives of management for future operations, are forward-looking statements. In some cases, you can identify forward-looking statements because they contain words such as “anticipate,” “believe,” “contemplate,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “target,” “will,” or “would,” or the negative of these words or other similar terms or expressions. Our actual results or outcomes, or timing of our results or outcomes, could differ materially from those indicated in these forward-looking statements for a variety of reasons, including, among others:

You should not rely on forward-looking statements as predictions of future events. We have based the forward-looking statements contained in this press release primarily on our current expectations and projections about future events and trends that we believe may affect our business, financial condition, and operating results. The outcome of the events described in these forward-looking statements is subject to risks, uncertainties, and other factors described in Part I, Item 1A, “Risk Factors” in our Annual Report on Form 10-K for the year ended October 4, 2025 and in our other filings with the SEC. Moreover, we operate in a very competitive and rapidly changing environment. New risks and uncertainties emerge from time to time, and it is not possible for us to predict all risks and uncertainties that could have an impact on the forward-looking statements contained in this press release. The results, outcomes, events, and circumstances reflected in the forward-looking statements may not be achieved or occur, and actual results or outcomes, or the timing of results and outcomes, could differ materially from those described in the forward-looking statements.

In addition, statements that “we believe” and similar statements reflect our beliefs and opinions on the relevant subject. These statements are based on information available to us as of the date of this press release, and, while we believe that information provides a reasonable basis for these statements, that information may be limited or incomplete. Our statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of, all relevant information. These statements are inherently uncertain, and investors are cautioned not to unduly rely on these statements.

The forward-looking statements made in this press release are based on events or circumstances as of the date on which the statements are made. We undertake no obligation to update any forward-looking statements made in this press release to reflect events or circumstances after the date of this press release or to reflect new information, changed expectations, the occurrence of unanticipated events or otherwise, except as required by law. We may not actually achieve the plans, intentions, outcomes, or expectations disclosed in our forward-looking statements, and you should not place undue reliance on our forward-looking statements. Our forward-looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, joint ventures, or investments.

Contact

Tom Filandro

Partner, ICR

Lesliesir@icrinc.com

Condensed Consolidated Statements of Operations

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Other Financial Data (1)

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Condensed Consolidated Balance Sheets

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Condensed Consolidated Statements of Cash Flows

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GAAP to Non-GAAP Reconciliation

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