Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the SecuritiesExchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submittedpursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smallerreporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period forcomplying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ As of May13, 2025, the registrant had27,450,978shares of common stock, $0.01 par value per share, outstanding. TABLE OF CONTENTS PART I. FINANCIAL INFORMATION ITEM 1. Financial Statements (Unaudited)Condensed Consolidated Balance Sheets (unaudited)Condensed Consolidated Statements of Operations (unaudited)Condensed Consolidated Statements of Shareholders’ Equity (unaudited)Condensed Consolidated Statements of Cash Flows (unaudited) Notes to the Condensed Consolidated Financial Statements ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of OperationsITEM 3. Qualitative and Quantitative Disclosures About Market RiskITEM 4. Controls and Procedures PART II. OTHER INFORMATION ITEM 1. Legal ProceedingsITEM 1A. Risk FactorsITEM 2. Unregistered Sales of Equity Securities and Use of ProceedsITEM 3. Defaults Upon Senior SecuritiesITEM 4. Mine Safety Disclosures DEFINED TERMS Index to Consolidated Financial Statements Condensed Consolidated Balance Sheets (unaudited)5Condensed Consolidated Statements of Operations (unaudited)6Condensed Consolidated Statements of Shareholders’ Equity (unaudited)7Condensed Consolidated Statements of Cash Flows (unaudited)8Notes to the Condensed Consolidated Financial Statements91. Description of Business, Basis of Presentation, Significant Accounting Policies, and Recent AccountingPronouncements92. Acquisitions9 GLOBAL WATER RESOURCES, INC.Condensed Consolidated Balance Sheets (unaudited)(in thousands, except share and per share amounts) GLOBAL WATER RESOURCES, INC.Condensed Consolidated Statements of Operations (unaudited)(in thousands, except share and per share amounts) GLOBAL WATER RESOURCES, INC.Condensed Consolidated Statements of Cash Flows (unaudited)(in thousands) GLOBAL WATER RESOURCES, INC.Notes to the Condensed Consolidated Financial Statements (unaudited) 1.Description of Business, Basis of Presentation, Significant Accounting Policies, and Recent Accounting Pronouncements Basis of Presentation and Principles of Consolidation The Company’s condensed consolidated financial statements (unaudited) and related disclosures as of March 31, 2025 and for the threemonths ended March 31, 2025 and 2024 are unaudited. Certain information and footnote disclosures normally included in financialstatements prepared in accordance with GAAP have been condensed or omitted. These financial statements follow the same accountingpolicies and methods of their application as the Company’s most recent annual consolidated financial statements. These financial statementsshould be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report The Company prepares its financial statements in accordance with the rules and regulations of the SEC. The preparation of the financialstatements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and Recent Accounting Pronouncements Recently Issued Accounting Pronouncements In December 2023, the FASB issued ASU 2023-09,Income Taxes (Topic 740): Improvements to Income Tax Disclosuresto expand thedisclosure requirements for income taxes, specifically related to the rate reconciliation and income taxes paid. ASU 2023-09 is effective forannual periods beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the impacts this In November 2024, the FASB issued ASU 2024-03,Income Statement—Reporting Comprehensive Income—Expense DisaggregationDisclosures (Subtopic 220-40). This pronouncement requires disaggregated disclosure of income statement expenses for public businessentities. In January 2025, the FASB issued ASU 2025-01,Income Statement – Reporting Comprehensive Income – Expense DisaggregationDisclosures (Subtopic 220-40): Clarifying the Effective Date, which clarified the effective date of