Global Water Resources 424B5 Prospectus supplement for primary offering

Filed pursuant to Rule 424(b)(5)

Registration No. 333-245722

PROSPECTUS SUPPLEMENT

(To prospectus dated September 8, 2020)

1,000,000 Shares

Common Stock

We are offering 1,000,000 shares of our common stock in this offering.

Our common stock is listed on the NASDAQ Global Market under the symbol “GWRS.” On July 26, 2022, the last reported sale price of our common stock on the NASDAQ Global Market was $13.75 per share.

We have granted the underwriter an option to buy up to an additional 150,000 shares of common stock from us to cover over-allotments. The underwriter may exercise this option at any time and from time to time during the 30-day period from the date of this prospectus supplement.


	No Exercise of Over-Allotment				Full Exercise of Over-Allotment
	Per Share		Total		Per Share		Total
Public offering price	$	13.50	$	13,500,000	$	13.50	$	15,525,000
Underwriting discounts and commissions(1)	$	0.675	$	675,000	$	0.675	$	776,250
Proceeds to us, before expenses	$	12.825	$	12,825,000	$	12.825	$	14,748,750

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(1)The underwriter will not receive any underwriting discount or commissions for the sale of shares of our common stock to existing stockholders, including certain directors and/or their affiliates. See “Underwriting” for additional information regarding underwriting compensation and expense reimbursement.

YOU SHOULD READ THIS PROSPECTUS SUPPLEMENT, THE DOCUMENTS INCORPORATED BY REFERENCE HEREIN, AND THE ACCOMPANYING PROSPECTUS CAREFULLY BEFORE YOU INVEST IN OUR COMMON STOCK. INVESTING IN OUR SECURITIES INVOLVES A HIGH DEGREE OF RISK. SEE “RISK FACTORS” BEGINNING ON PAGE S-7 OF THIS PROSPECTUS SUPPLEMENT.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

The underwriter expects to deliver the shares on or about August 1, 2022, subject to customary closing conditions.

Roth Capital Partners

July 28, 2022

TABLE OF CONTENTS

PROSPECTUS SUPPLEMENT


ABOUT THIS PROSPECTUS SUPPLEMENT			S-1
PROSPECTUS SUPPLEMENT SUMMARY			S-2
THE OFFERING			S-6
RISK FACTORS			S-7
FORWARD-LOOKING STATEMENTS			S-9
USE OF PROCEEDS			S-10
DIVIDEND POLICY			S-11
UNDERWRITING			S-12
WHERE YOU CAN FIND MORE INFORMATION			S-19
INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE			S-19
LEGAL MATTERS			S-20
EXPERTS			S-20

PROSPECTUS


ABOUT THIS PROSPECTUS			1
OUR COMPANY			1
RISK FACTORS			2
FORWARD-LOOKING STATEMENTS			2
USE OF PROCEEDS			2
DESCRIPTION OF CAPITAL STOCK			3
DESCRIPTION OF DEBT SECURITIES			5
GLOBAL SECURITIES			12
PLAN OF DISTRIBUTION			15
WHERE YOU CAN FIND MORE INFORMATION			17
INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE			18
LEGAL MATTERS			19
EXPERTS			19

We have not, and the underwriter has not, authorized anyone to provide you with information different than or inconsistent with the information contained in or incorporated by reference in this prospectus supplement, the accompanying prospectus and in any free writing prospectus that we have authorized for use in connection with this offering. We and the underwriter take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. We are not, and the underwriter is not, making an offer to sell these securities in any jurisdiction where the offer or sale is not permitted.

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ABOUT THIS PROSPECTUS SUPPLEMENT

This document is in two parts. The first part is this prospectus supplement, which describes the terms of this offering of common stock and also adds to and updates information contained in the accompanying prospectus and the documents incorporated by reference into this prospectus supplement and the accompanying prospectus. The second part, the accompanying prospectus, dated September 8, 2020, including the documents incorporated by reference therein, provides more general information. Generally, when we refer to this prospectus, we are referring to both parts of this document combined. To the extent there is a conflict between the information contained in this prospectus supplement, on the one hand, and the information contained in the accompanying prospectus or in any document incorporated by reference that was filed with the United States Securities and Exchange Commission (the “SEC”) before the date of this prospectus supplement, on the other hand, you should rely on the information in this prospectus supplement. If any statement in one of these documents is inconsistent with a statement in another document having a later date, the statement in the document having the later date modifies or supersedes the earlier statement.

You should assume that the information appearing in this prospectus supplement, the accompanying prospectus, the documents incorporated by reference in this prospectus supplement and the accompanying prospectus, and in any free writing prospectus that we have authorized for use in connection with this offering, is accurate only as of the date of those respective documents, regardless of the time of delivery of those respective documents. Our business, financial condition, results of operations, and prospects may have changed since those dates. You should read this prospectus supplement, the accompanying prospectus, the documents incorporated by reference in this prospectus supplement and the accompanying prospectus, and any free writing prospectus that we have authorized for use in connection with this offering, in their entirety before making an investment decision. You should also read and consider the information in the documents to which we have referred you in the sections of this prospectus supplement entitled “Where You Can Find More Information” and “Incorporation of Certain Documents by Reference.”

This prospectus supplement, the accompanying prospectus, and the documents incorporated by reference contain statistical data, market research, and industry forecasts that were obtained from government or independent industry publications and reports or were based on estimates derived from such publications or reports and management’s knowledge of, and experience in, the markets in which we operate. Government and industry publications and reports generally indicate that they have obtained their information from sources believed to be reliable, but do not guarantee the accuracy and completeness of their information. None of the third-party sources cited have provided any form of consultation, advice or counsel regarding any aspect of, or is in any way whatsoever associated with, or consenting to this prospectus supplement, the accompanying prospectus and the documents incorporated by reference. While we believe the data to be reliable, market and industry data is subject to variations and cannot be verified due to limits on the availability and reliability of data inputs, the voluntary nature of the data gathering process and other limitations and uncertainties inherent in any statistical survey. Neither we nor the underwriter have independently verified any of the data from third party sources or ascertained the underlying assumptions relied upon by such sources. While we are not aware of any misstatements regarding any information presented in this prospectus supplement, the accompanying prospectus and the documents incorporated by reference, estimates, in particular, as they relate to projections, involve numerous assumptions, are subject to risks and uncertainties, and are subject to change based on various factors, including those discussed in “Risk Factors” and in our other filings with the SEC incorporated by reference herein.

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PROSPECTUS SUPPLEMENT SUMMARY

This summary highlights certain information contained in greater detail elsewhere in this prospectus supplement or the accompanying prospectus, or incorporated by reference herein or therein. This summary is not complete and does not contain all of the information that you should consider before deciding whether to invest in our securities. You should carefully read this prospectus supplement, the accompanying prospectus, any related free writing prospectus that we have authorized for use in connection with this offering and the documents incorporated by reference, including the information referred to under the heading “Risk Factors” in this prospectus supplement. Unless the context requires otherwise, references in this prospectus to the “Company”, “we”, “us”, and “our” refer to Global Water Resources, Inc., a Delaware corporation, and its consolidated subsidiaries.

Our Company

•Reuse of recycled water, either directly or to non-potable uses, through aquifer recharge, or direct potable reuse;

•Regional planning;

•Use of advanced technology and data;

•Employing the best subject matter experts and retaining thought and application leaders;

•Leading outreach and educational initiatives to ensure all stakeholders including customers, development partners, regulators, and utility staff are knowledgeable on the principles and practices of our Total Water Management approach; and

•Establishing partnerships with communities, developers, and industry stakeholders to gain support of our Total Water Management principles and practices.

We currently own and operate 25 water and wastewater systems in strategically targeted communities in metropolitan Phoenix. We currently serve more than 74,048 people in approximately 27,630 homes within our 376 square miles of certificated service areas. As of March 31, 2022, approximately 90.8% of our active service connections are customers of our Global Water - Santa Cruz Water Company, Inc. (“Santa Cruz”) and Global Water - Palo Verde Utilities Company, Inc. (“Palo Verde”) utilities, which are located within a single service area. At present, we have obtained a Designation of Assured Water Supply in the Maricopa/Casa Grande service territory (Santa Cruz) for approximately 22,900 acre-feet of water use and are only using approximately 7,700 acre feet per year. We have grown significantly since our formation in 2003, with total revenues increasing from $4.9 million in 2004 to $41.9 million in 2021, and total service connections increasing from 8,113 as of December 31, 2004 to 55,303 as of March 31, 2022, with regionally planned areas large enough to serve approximately two million service connections.

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The graph below presents the historical change in active and total connections for our ongoing operations over the past six years.

Business Outlook

2021 and the first quarter of 2022 continued the trend of positive growth in new connections. According to the 2020 U.S. Census Data, the Phoenix metropolitan statistical area (“MSA”) is the 11th largest MSA in the U.S. and had a population of 4.8 million, an increase of 14% over the 4.2 million people reported in the 2010 Census. Metropolitan Phoenix continues to grow due to its affordable housing, excellent weather, large and growing universities, a diverse employment base, and low taxes. The Employment and Population Statistics Department of the State of Arizona predicts that the Phoenix metropolitan area will have a population of 5.7 million people by 2030 and 6.5 million by 2040. During the three months ended March 31, 2022, Arizona’s employment rate increased by 3.7%, ranking the state in the top 20 nationally for job growth.

According to the W.P. Carey School of Business Greater Phoenix Blue Chip Real Estate Consensus Panel (the “Greater Phoenix Blue Chip Panel”), the single family housing market experienced a period of very rapid growth in 2021 with approximately 31,000 building permits issued. Strong underlying demand and an extreme shortage of existing inventory pushed prices up rapidly. The Greater Phoenix Blue Chip Panel expects this to continue but at a slower pace as lack of product and affordability issues slow demand. Building permits are forecasted to increase to 35,000 and 36,000 in 2022 and 2023, respectively.

We believe that our utilities and service areas are directly in the anticipated path of growth primarily in the Phoenix metropolitan area. Management believes that we are well-positioned to benefit from the near-term growth in the Phoenix metropolitan area due to the availability of lots and existing infrastructure in place within our services areas.

Our Growth Strategy

Our long-term goal is to become one of the largest investor-owned operators of integrated water and wastewater utilities in areas of the arid western U.S. where water scarcity management is necessary for long-term economic sustainability and growth.

Our growth strategy involves the elements listed below:

•acquiring or forming utilities in the path of prospective population growth;

•expanding our service areas geographically and organically growing our customer base within those areas; and

•deploying our Total Water Management approach into these utilities and service areas.

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We believe this plan can be executed in our current service areas and in other geographic areas where water scarcity management is necessary to support long-term growth and in which regulatory authorities recognize the need for water conservation through water recycling.

In April 2022, we signed a definitive agreement to acquire Farmers Water Co., a subsidiary of Farmers Investment Co., located in Pima County. The acquisition is expected to add approximately 3,300 active water service connections, approximately $1.5 million in annual revenue and 21.1 square miles of Certificate of Convenience and Necessity service area in Sahuarita, Arizona.

Our Competitive Strengths

Our Utilities Are Located in Areas of Strong Population Growth Where We Have Contracted Service Areas

We have three regional planning areas located in the metropolitan Phoenix area with area-wide permits and contractual service rights relating to over 500 square miles of territory. Our Maricopa regional planning area and Sun Corridor regional planning area are located in Pinal County, Arizona. Pinal County is rapidly changing from primarily rural to an area of suburbanization. According to the U.S. Census, Pinal County grew by approximately 20% from a population of 375,770 in 2010 to an estimated population of 449,557 in 2021.

Our West Valley regional planning area is located in Maricopa County. Maricopa County grew by approximately 18% from a population of 3,817,117 in 2010 to an estimated population of 4,496,588 in 2021 according to the U.S. Census. From 2020 to 2021, Maricopa County was the fastest growing county in the U.S., with a population increase of 58,246 persons. Maricopa County is the fourth largest county in the U.S. with approximately 4.5 million residents.

Modern Infrastructure Provides Foundation for Future Growth with Low Future Maintenance Capital Expenditures

We believe that as demand for new homes continues to increase in the regions we serve, there will be opportunities for growth, particularly in the Maricopa Planning Area, where our local utilities have considerable infrastructure already in place. As of April 2022, Maricopa’s median home price of approximately $410,000 was a 19% discount to the average median home price of approximately $507,000 for the rest of the metropolitan Phoenix area. As a result of our investment in modern infrastructure, we expect our regulated utilities business in our current service areas to have relatively low maintenance capital expenditures because greater than 90% of our infrastructure was built in the last 17 years compared to most U.S. drinking water infrastructure, which was built 50 or more years ago. This allows for the majority of future capital expenditure to be focused on growth areas and acquisitions. Additionally, our current infrastructure has built-in capacity to support substantial growth in total connections.

Leader in Utilization of Technology and Innovation

We use technology to reduce costs, increase revenues, and save water. We focus on technological innovations that allow us to deliver high-quality water and customer service with lower potential for human error, delays, and inefficiencies. Our comprehensive technology platform includes customer information systems, automated meter reading and geographical information system technologies, along with supervisory control and data acquisition systems, which we use to map and monitor our physical assets and water resources on an automated, real-time basis with fewer employees than the standard water utility model requires. Our innovative approaches to utility planning, water conservation, and technology utilization have led to our development of strong relationships with key regulatory bodies.

Proven Ability to Acquire and Consolidate

We have acquired or formed 27 regulated water and wastewater utilities, some of which have subsequently been divested or combined with other utilities. We have successfully consolidated the operations, management, technology and employees of these utilities. We believe that our success to date engenders positive relationships and credibility with regulators, municipalities, developers and customers in both existing and prospective service areas. As part of our acquisition strategy, we are currently seeking additional utility acquisitions, but we currently do not have any agreements or understandings as to any particular acquisition other than as disclosed in our filings with the SEC.

Recent Developments

Arizona Corporation Commission (“ACC”) Rate Case

On August 28, 2020, 12 of our 18 regulated utilities each filed a rate case application with the ACC for water,

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wastewater, and recycled water rates based on a 2019 test year. In addition to a rate increase, we requested, among other things, the consolidation of water and/or wastewater rates for certain of our utilities, including our Red Rock, Santa Cruz, Palo Verde, Picacho Water, and Picacho Utilities located in Pinal County. Of our utilities filing a rate case, these utilities make up approximately 96% of our active service connections; provide or will provide water, wastewater and recycled water services; and are expected to create economies of scale that are beneficial to all customers if consolidated.

On July 12, 2022, the ACC voted in an open meeting to approve the recommended order and opinion in the rate case with certain amendments, subject to a final signed decision. Pursuant to the vote, the ACC approved a collective annual revenue requirement increase of approximately $2.2 million (including the acquisition premiums discussed below) based on 2019 test year service connections, phased-in over time, as follows:


		Incremental		Cumulative
August 1, 2022	$	1,457,462	$	1,457,462
January 1, 2023		675,814		2,133,277
January 1, 2024		98,585		2,231,861

Whereas this phase-in of additional revenues was determined using a 2019 test year, to the extent that the number of active service connections has increased and continues to increase from 2019 levels, the additional revenues may be greater than the amounts set forth above. On the other hand, if active connections decrease or we experience declining usage per customer, we may not realize all of the anticipated revenues.

Additionally, the ACC approved, among other things, (i) the consolidation of water and/or wastewater rates to create economies of scale that are beneficial to all customers when rates are consolidated; (ii) acquisition premiums relating to our acquisitions of our Red Rock and Turner Ranches utilities, which increase the rate base for such utilities and result in an increase in the annual collective revenue requirement included in the table above; (iii) our ability to annually adjust rates to flow through changes in property tax expense and/or changes in income tax expense, without the necessity of a rate case proceeding; and (iv) a sustainable water surcharge, which will allow semiannual surcharges to be added to customer bills based on verified costs of new water resources.

Finally, the order and opinion requires us to work with ACC staff and the Residential Utility Consumer Office to prepare a Private Letter Ruling request to the Internal Revenue Service (“IRS”) to clarify whether the failure to eliminate the deferred taxes attributable to assets condemned in a transaction governed by Section 1033 of the Internal Revenue Code (“Code”) would violate the normalization provisions of Section 168(i)(9) of the Code. If the IRS accepts the request and issues its ruling, a copy must be provided to the ACC. Within 90 days after providing the ruling to the ACC, ACC Staff shall prepare, for ACC consideration, a memorandum and proposed order regarding guidance issued within the Private Letter Ruling. This may result in further action by the ACC, which we are unable to predict due to the uncertainties involved, that could have an adverse impact on our financial condition, results of operations and cash flows.

Revolving Line of Credit Amendment

On July 26, 2022, we entered into a second amendment (the “Second Modification Agreement”) to our loan agreement with The Northern Trust Company, an Illinois banking corporation, relating to our revolving line of credit. Pursuant to the Second Modification Agreement, the terms and conditions set forth in the loan agreement were further amended to, among other things, (i) extend the scheduled maturity date from April 30, 2024 to July 1, 2024; (ii) increase the maximum principal amount available for borrowing under the revolving line of credit from $10.0 million to $15.0 million; and (iii) replace the London Interbank Offered Rate (LIBOR) interest rate provisions with provisions based on the secured overnight financing rate (SOFR). As of the date of this prospectus supplement, no amount was drawn under the revolving line of credit.

Corporate Information

Global Water Resources, Inc. was incorporated as a Delaware corporation on May 2, 2008. Our principal executive offices are located at 21410 N 19th Avenue #220, Phoenix, AZ 85027, and our telephone number is (480) 360-7775. Our website address is www.gwresources.com. The information contained on, or accessible through, our website is not incorporated in, and shall not be part of, this prospectus supplement.

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THE OFFERING


Common stock offered by us			1,000,000 shares

Option to purchase additional shares			We have granted the underwriter an over-allotment option for a period of thirty (30) days to purchase up to an aggregate of 150,000 additional shares of common stock at a purchase price of $13.50 per share to cover over-allotments, if any, of the shares offered by this prospectus supplement. See “Underwriting” on page S-12.

Common stock to be outstanding after this offering(1)			23,716,609 shares

Use of proceeds			We estimate that the net proceeds to us from this offering after deducting underwriting discounts and commissions and estimated offering expenses payable by us will be approximately $13.0 million. We intend to use the proceeds from this offering to fund acquisitions and for working capital and other general corporate purposes. See “Use of Proceeds.”

Dividend policy			We currently intend to continue to pay a regular monthly dividend of $0.02458 per share ($0.29496 per share annually); however, dividend payments are not mandatory or guaranteed, and there can be no assurance that we will continue to pay a dividend in the future. See “Dividend Policy.”

Risk factors			See “Risk Factors” beginning on page S-7 (and under similar headings in the documents incorporated by reference herein) and the other information included in this prospectus for a discussion of factors you should carefully consider before deciding to invest in our common stock.

NASDAQ Global Market symbol			GWRS

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(1)The number of shares of our common stock outstanding is based on 22,716,609 shares of our common stock outstanding as of June 30, 2022 and excludes the following:

•179,805 shares of our common stock issuable upon the exercise of outstanding stock options at a weighted-average exercise price of $10.20 per share; and

•102,493 shares of our common stock reserved for future issuance under our 2020 Omnibus Incentive Plan.

Except as otherwise indicated, all information in this prospectus supplement assumes no exercise by the underwriter of its over-allotment option.

Existing stockholders, including certain directors and/or their affiliates, have agreed to purchase an aggregate of 652,000 shares of our common stock offered hereby at the public offering price of $13.50 per share. The shares sold to such stockholders will be subject to the lock-up agreement described under “Underwriting.” The underwriter will not receive any underwriting discount or commissions on the shares of our common stock purchased by such stockholders in this offering.

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RISK FACTORS

Investing in our common stock involves a high degree of risk. Before deciding whether to invest in our common stock, you should consider carefully the risks described below and all other information in this prospectus supplement, the accompanying prospectus, any related free writing prospectus that we have authorized for use in connection with this offering, and the documents incorporated by reference, including our Annual Report on Form 10-K for the year ended December 31, 2021 and our subsequently filed Quarterly Report on Form 10-Q, each of which is incorporated by reference in this prospectus supplement and which may be amended, supplemented, or superseded from time to time by other reports that we subsequently file with the SEC. If any of these risks actually occur, our business, financial condition, results of operations, or cash flows could be seriously harmed. This could cause the trading price of our common stock to decline, resulting in a loss of all or part of your investment. Please also read carefully the section entitled “Forward-Looking Statements” in this prospectus supplement.

Risks Related to this Offering

Management will have broad discretion in determining how to use the proceeds of this offering.

Our management will have broad discretion over the use of proceeds from this offering, and we could use the proceeds from this offering in ways our stockholders may not agree with or that do not yield a favorable return, if at all. We intend to use the proceeds from this offering for any of the purposes described in the section entitled “Use of Proceeds” in this prospectus supplement. However, our use of these proceeds may differ substantially from our current plans. If we do not invest or apply the proceeds of this offering in ways that improve our operating results, we may fail to achieve expected financial results, which could have an adverse effect on the market price of our common stock.

If you purchase shares of our common stock in this offering, you will incur immediate and substantial dilution.

The public offering price of our common stock offered pursuant to this prospectus supplement is substantially higher than the net tangible book value per share of our common stock. Therefore, if you purchase shares of common stock in this offering, you will incur immediate and substantial dilution in the pro forma net tangible book value per share of common stock from the price per share that you pay for the common stock. Furthermore, we expect that we will seek to raise additional capital from time to time in the future. Such financings may involve the issuance of equity and/or securities convertible into or exercisable or exchangeable for our equity securities. We also expect to continue to utilize equity-based compensation. To the extent that stock options are exercised, or we issue common stock, preferred stock, or securities, such as warrants that are convertible into, exercisable or exchangeable for, our common stock or preferred stock in the future, you may experience further dilution.

Substantial future sales of our common stock, or the perception in the public markets that these sales may occur, may depress our stock price.

Shares of our common stock sold in this offering may be freely tradable without restriction or further registration under the Securities Act except for any shares of our common stock that may be held or acquired by our directors, executive officers, and other affiliates, as that term is defined in the Securities Act, which may not be sold in the public market unless the sale is registered under the Securities Act or an exemption from registration is available. Moreover, from time to time, certain of our stockholders may be eligible to sell all or some of their shares of common stock by means of ordinary brokerage transactions in the open market or otherwise. As a result, the market price of our common stock may decline if our stockholders sell a large number of shares of our common stock in the public market or the market perceives that such sales may occur.

Fluctuations in the price of our common stock may make our common stock more difficult to resell.

The market price and trading volume of our common stock have been and may continue to be subject to significant fluctuations due not only to general stock market conditions, but also to a change in sentiment in the market regarding the industry in which we operate, our operations, business prospects or liquidity or this offering. Stock markets in general may experience extreme volatility that is unrelated to the operating performance of listed companies. These broad market fluctuations may adversely affect the trading price of our common stock, regardless of our operating results. As a result, these fluctuations in the market price and trading volume of our common stock may make it difficult to predict the market price of our common stock in the future, cause the value of your investment to decline and make it more difficult to resell our common stock.

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Our common stock is an equity security and is subordinate to our existing and future indebtedness.

The shares of common stock being offered by this prospectus supplement and the accompanying prospectus are equity interests and do not constitute indebtedness. As such, the shares of common stock rank junior to all of our indebtedness and any non-equity claims on us and our assets that would be available to satisfy claims on us, including claims in a bankruptcy, liquidation or similar proceeding.

Additionally, unlike indebtedness, where principal and interest customarily are payable on specified due dates, in the case of our common stock, (i) dividends are payable only when and if declared by our board of directors or a duly authorized committee of the board, and (ii) as a corporation, we are restricted to only making dividend payments and redemption payments out of legally available assets. For additional information, see “Dividend Policy.” Further, our common stock places no restrictions on our business or operations or on our ability to incur indebtedness or engage in any transactions, subject only to the voting rights available to stockholders generally.

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FORWARD-LOOKING STATEMENTS

This prospectus supplement, the accompanying prospectus, any related free writing prospectus that we have authorized for use in connection with this offering and the documents incorporated by reference contain forward-looking statements within the meaning of federal securities laws and which are subject to certain risks, trends, and uncertainties. We use words such as “could”, “would”, “may”, “might”, “will”, “expect”, “likely”, “believe”, “continue”, “anticipate”, “estimate”, “intend”, “plan”, “objective”, “goal”, “focus”, “aim”, “should”, “project”, and other similar expressions to identify some forward-looking statements, but not all forward-looking statements include these words. These forward-looking statements include, but are not limited to, statements about our strategies; expectations about future business plans, prospective performance, and opportunities; future financial performance; regulatory and ACC proceedings and approvals; the anticipated benefits resulting from our approved rate application, including our expected collective revenue increase due to new water and wastewater rates and benefits from consolidation of rates; our contemplated Private Letter Ruling request in connection with our recent rate case and possible further action that may be taken by the ACC following such request; acquisition plans and our ability to complete additional acquisitions, including the acquisition of Farmers Water Co. and the expected timing and future benefits, such as expected increases in active water service connections, annual revenue and miles of Certificate of Convenience and Necessity service area; population and growth projections; technologies; revenues; metrics; operating expenses; trends relating to our industry, market, population growth, and housing permits; liquidity; cash flows and uses of cash; dividends; expectations that our regulated utilities business in our current service areas will have relatively low maintenance capital expenditures; depreciation and amortization; tax payments; our ability to repay indebtedness and invest in initiatives; impact and resolutions of legal matters; the impact of tax changes; the impact of accounting changes and other pronouncements; the anticipated impacts from the COVID-19 pandemic on the Company, including to our business operations, results of operations, cash flows, and financial position; our future responses to the COVID-19 pandemic; and the intended use of the net proceeds from this offering.

Forward-looking statements are based on assumptions that we have made in light of our industry experience and our perceptions of historical trends, current conditions, expected future developments, and other factors we believe are appropriate under the circumstances. As you read and consider this prospectus supplement, the accompanying prospectus, any related free writing prospectus that we have authorized for use in connection with this offering, and the documents incorporated by reference, you should understand that forward-looking statements should not be read as guarantees of future performance or results, and will not necessarily be accurate indications of whether or not, or the times at or by which, such performance or results will be achieved. Investors are cautioned not to place undue reliance on forward-looking information. They involve risks, uncertainties (many of which are beyond our control) and assumptions. Although we believe that these forward-looking statements are based on reasonable assumptions, you should be aware that many factors could affect our actual operating and financial performance and cause our performance to differ materially from the performance anticipated in the forward-looking statements. We believe these factors include, but are not limited to, those described under the section entitled “Risk Factors” in this prospectus supplement and in our other filings with the SEC incorporated by reference herein. Additional risks and uncertainties include, but are not limited to, whether all conditions precedent in the definitive agreement to acquire Farmers Water Company will be satisfied, including the receipt of ACC approval, and other risks to consummation of the acquisition, including circumstances that could give rise to the termination of the definitive agreement and the risk that the transaction will not be consummated without undue delay, cost or expense, or at all; and whether the IRS will rule in favor of us in connection with the contemplated Private Letter Ruling request. Should one or more of these risks or uncertainties materialize, or should any of these assumptions prove incorrect, our actual operating and financial performance may vary in material respects from the performance projected in these forward-looking statements.

Further, any forward-looking statement speaks only as of the date on which it is made, and except as required by law, we undertake no obligation to update any forward-looking statement contained herein to reflect events or circumstances after the date on which it is made or to reflect the occurrence of anticipated or unanticipated events or circumstances. New factors that could cause our business not to develop as we expect emerge from time to time, and it is not possible for us to predict all of them. Further, we cannot assess the impact of each currently known or new factor on our results of operations or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements.

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USE OF PROCEEDS

We estimate that the net proceeds to us from this offering after deducting underwriting discounts and commissions and estimated offering expenses payable by us will be approximately $13.0 million (or approximately $14.9 million if the underwriter exercises its over-allotment option in full).

We intend to use the proceeds from this offering to fund acquisitions and for working capital and other general corporate purposes. We have broad discretion in determining how the proceeds from this offering will be used, and our discretion is not limited by the aforementioned possible uses. See “Risk Factors—Risks Related to this Offering—Management will have broad discretion in determining how to use the proceeds of this offering.”

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DIVIDEND POLICY

We paid a monthly cash dividend of $0.02434 per share ($0.29208 per share annually) to holders of our common stock from January 2021 through November 2021. On November 30, 2021, we announced a monthly dividend increase to $0.02458 per share ($0.29496 per share annually).

For the year ended December 31, 2021, we paid cash dividends to holders of our common stock totaling $6.6 million, which included: from January 2021 through November 2021, a monthly dividend of $0.02434 per share; and a monthly dividend of $0.02458 per share for December 2021.

For the year ended December 31, 2020, we paid cash dividends to holders of our common stock totaling $6.5 million, which included: from January 2020 through November 2020, a monthly dividend of $0.0241 per share; and a monthly dividend of $0.02434 per share for December 2020.

We currently intend to continue to pay a regular monthly dividend of $0.02458 per share ($0.29496 per share annually). However, our future dividend policy is subject to our compliance with applicable law, and depending on, among other things, our results of operations, financial condition, level of indebtedness, capital requirements, contractual restrictions, restrictions in our debt agreements and in any preferred stock we may issue in the future, business prospects, and other factors that our board of directors may deem relevant. Dividend payments are not mandatory or guaranteed; there can be no assurance that we will continue to pay a dividend in the future.

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UNDERWRITING

We have entered into an underwriting agreement with the Roth Capital Partners, LLC as the underwriter. Subject to the terms and conditions of the underwriting agreement, we have agreed to sell to the underwriter, and the underwriter has agreed to purchase from us, shares of our common stock. Our common stock trades on the Nasdaq Global Market under the symbol “GWRS.”

Pursuant to the terms and subject to the conditions contained in the underwriting agreement, we have agreed to sell to the underwriter named below, and the underwriter has agreed to purchase from us, the number of shares of common stock set forth below:


Underwriter			Number of Shares
Roth Capital Partners, LLC			1,000,000
Total			1,000,000

The underwriting agreement provides that the obligation of the underwriter to purchase the shares of common stock offered by this prospectus supplement and the accompanying base prospectus is subject to certain conditions. The underwriter is obligated to purchase all of the shares of common stock offered hereby if any of the shares are purchased. As described below, existing stockholders, including certain directors and/or their affiliates, have indicated an interested in purchasing shares of common stock sold in this offering at the public offering price.

We have granted the underwriter an option to buy up to 150,000 additional shares of our common stock at the public offering price, less the underwriting discounts and commissions set forth on the cover page of this prospectus supplement, to cover over-allotments, if any. The underwriter may exercise this option at any time, in whole or in part, during the 30-day period after the date of this prospectus supplement. If any additional shares of common stock are purchased, the underwriter will offer the additional shares on the same terms as those on which the shares are being offered.

Discounts, Commissions, and Expenses

The underwriter proposes to offer the shares of common stock purchased pursuant to the underwriting agreement to the public at the public offering price set forth on the cover page of this prospectus supplement and to certain dealers at that price less a concession not in excess of $0.3375 per share. After this offering, the public offering price and concession may be changed by the underwriter. No such change shall change the amount of proceeds to be received by us as set forth on the cover page of this prospectus supplement.

In connection with the sale of the common stock to be purchased by the underwriter, the underwriter will be deemed to have received compensation in the form of underwriting commissions and discounts. The underwriter’s commissions and discounts will be five percent (5%) of the gross proceeds of this offering, or $0.675 per share of common stock, based on the public offering price per share set forth on the cover page of this prospectus supplement, with an additional 1% payable at the Company’s discretion.

We have also agreed to reimburse Roth Capital Partners at closing for legal expenses incurred by it in connection with the offering up to a maximum of $80,000.

Existing stockholders, including certain directors and/or their affiliates, have agreed to purchase an aggregate of 652,000 shares of our common stock offered hereby at the public offering price of $13.50 per share. The shares sold to such stockholders will be subject to the lock-up agreement described below. The underwriter will not receive any underwriting discount or commissions on the shares of our common stock purchased by such stockholders in this offering.

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The following table shows the underwriting discounts and commissions payable to the underwriter by us in connection with this offering (assuming both the exercise and non-exercise of the over-allotment option to purchase additional shares of common stock we have granted to the underwriter):


	Per Share				Total
	Without Over-allotment		With Over-allotment		Without Over-allotment		With Over-allotment
Public offering price	$	13.50	$	13.50	$	13,500,000	$	15,525,000
Underwriting discounts and commissions paid by us(1)	$	0.675	$	0.675	$	675,000	$	776,250

_______________________

(1)The underwriter will not receive any underwriting discount or commissions on the sale of an aggregate of 652,000 shares of our common stock to existing stockholders.

Indemnification

Pursuant to the underwriting agreement, we have agreed to indemnify the underwriter against certain liabilities, including liabilities under the Securities Act, or to contribute to payments that the underwriter or such other indemnified parties may be required to make in respect of those liabilities.

Lock-Up Agreements

We have agreed not to (i) offer, pledge, issue, sell, contract to sell, purchase, contract to purchase, lend or otherwise transfer or dispose of, directly or indirectly, any shares of our common stock or any securities convertible into or exercisable or exchangeable for our common stock; (ii) enter into any swap or other arrangement that transfers, in whole or in part, any of the economic consequences of ownership of shares of common stock; or (iii) file any registration statement with the SEC relating to the offering of any shares of our common stock or any securities convertible into or exercisable or exchangeable for shares of our common stock, without the prior written consent of Roth Capital Partners for a period of 90 days following the date of this prospectus supplement (the “Lock-up Period”). This consent may be given at any time without public notice. These restrictions on future issuances are subject to exceptions for (1) the issuance of shares of our common stock sold in this offering, (2) the issuance of shares of our common stock upon the exercise of outstanding options or warrants, (3) the issuance of employee stock options not exercisable during the Lock-up Period and the grant of restricted stock awards or settlement in cash of restricted stock units pursuant to our equity incentive plans, (4) the issuance of common stock or warrants to purchase common stock in connection with mergers, acquisitions of securities, businesses, property or other assets, joint ventures, strategic alliances, equipment leasing arrangements or debt financing, or (5) the filing of a registration statement on Form S-8 or any successor form thereto.

In addition, each of our directors and executive officers and certain of our stockholders expect to enter into a lock-up agreement with the underwriter. Under the lock-up agreements, our directors and executive officers and certain of our stockholders may not, directly or indirectly, (i) offer, pledge, announce the intention to sell, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, or otherwise transfer or dispose of, or file (or participate in the filing of) a registration statement with the SEC, in respect of any shares of our common stock or any securities convertible into, or exercisable or exchangeable for, shares of our common stock, (ii) enter into any swap or other agreement that transfers, in whole or in part, any of the economic consequences of ownership of the shares of our common stock, (iii) make any demand for, or exercise any right with respect to, the registration of any shares of our common stock or any security convertible into, or exercisable or exchangeable for, shares of our common stock, or (iv) publicly announce an intention to effect any of the foregoing, in each case, without the prior written consent of Roth Capital Partners, during the Lock-up Period. This consent may be given at any time without public notice. These restrictions on future dispositions are subject to certain exceptions, as applicable, for (1) transfers as a bona fide gift or gifts (so long as the donee or donees agree to be bound in writing by the lock-up restrictions), (2) transfers to any trust for the direct or indirect benefit of the covered person or the immediate family of the covered person (so long as the trustee of the trust agrees to be bound in writing by the lock-up restrictions and any such transfer does not involve a disposition for value), (3) the acquisition or exercise of any stock option issued pursuant to our existing stock option plan, (4) the purchase or sale of our securities pursuant to a plan, contract or instruction that satisfies all of the requirements of Rule 10b5-1(c)(1)(i)(B) that was in effect prior to the date of this prospectus supplement, or (5) transfers to us upon the vesting of stock-based awards outstanding as of the date of this prospectus supplement under our equity compensation plans to cover applicable withholding taxes due upon such vesting.

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Electronic Distribution

This prospectus supplement and the accompanying base prospectus may be made available in electronic format on websites or through other online services maintained by the underwriter or by its affiliates. In those cases, prospective investors may view offering terms online and prospective investors may be allowed to place orders online. Other than this prospectus supplement and the accompanying base prospectus in electronic format, the information on the underwriter’s websites or our website and any information contained in any other websites maintained by the underwriter or by us is not part of this prospectus supplement, the accompanying base prospectus or the registration statement of which this prospectus supplement and the accompanying base prospectus forms a part, has not been approved and/or endorsed by us or the underwriter in its capacity as underwriter, and should not be relied upon by investors.

Price Stabilization, Short Positions and Penalty Bids

In connection with the offering the underwriter may engage in stabilizing transactions, over-allotment transactions, syndicate covering transactions and penalty bids in accordance with Regulation M under the Exchange Act:

•Stabilizing transactions permit bids to purchase the underlying security so long as the stabilizing bids do not exceed a specified maximum.

•Over-allotment involves sales by the underwriter of shares in excess of the number of shares the underwriter is obligated to purchase, which creates a syndicate short position. The short position may be either a covered short position or a naked short position. In a covered short position, the number of shares over-allotted by the underwriter is not greater than the number of shares that they may purchase in the over-allotment option. In a naked short position, the number of shares involved is greater than the number of shares in the over-allotment option. The underwriter may close out any covered short position by either exercising their over-allotment option and/or purchasing shares in the open market.

•Syndicate covering transactions involve purchases of the common stock in the open market after the distribution has been completed in order to cover syndicate short positions. In determining the source of shares to close out the short position, the underwriter will consider, among other things, the price of shares available for purchase in the open market as compared to the price at which they may purchase shares through the over-allotment option. A naked short position occurs if the underwriter sells more shares than could be covered by the over-allotment option. This position can only be closed out by buying shares in the open market. A naked short position is more likely to be created if the underwriter is concerned that there could be downward pressure on the price of the shares in the open market after pricing that could adversely affect investors who purchase in the offering.

•Penalty bids permit the underwriter to reclaim a selling concession from a syndicate member when the common stock originally sold by the syndicate member is purchased in a stabilizing or syndicate covering transaction to cover syndicate short positions

These stabilizing transactions, syndicate covering transactions and penalty bids may have the effect of raising or maintaining the market price of our common stock or preventing or retarding a decline in the market price of the common stock. As a result, the price of our common stock may be higher than the price that might otherwise exist in the open market. These transactions may be discontinued at any time.

Neither we nor the underwriter makes any representation or prediction as to the direction or magnitude of any effect that the transactions described above may have on the price of our shares of common stock. In addition, neither we nor the underwriter makes any representation that the underwriter will engage in these transactions or that any transaction, if commenced, will not be discontinued without notice.

Offer restrictions outside the United States

Other than in the United States, no action has been taken by us or the underwriter that would permit a public offering of the securities offered by this prospectus in any jurisdiction where action for that purpose is required. The securities offered by this prospectus may not be offered or sold, directly or indirectly, nor may this prospectus or any other offering material or advertisements in connection with the offer and sale of any such securities be distributed or published in any jurisdiction, except under circumstances that will result in compliance with the applicable rules and regulations of that jurisdiction. Persons into whose possession this prospectus comes are advised to inform themselves about and to observe any restrictions relating to this offering and the distribution of this prospectus. This prospectus does not constitute an offer to sell or a solicitation of an offer to buy any securities offered by this prospectus in any jurisdiction in which such an offer or a solicitation is unlawful.

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Australia

This prospectus is not a disclosure document under Chapter 6D of the Australian Corporations Act, has not been lodged with the Australian Securities and Investments Commission and does not purport to include the information required of a disclosure document under Chapter 6D of the Australian Corporations Act. Accordingly, (i) the offer of the securities under this prospectus is only made to persons to whom it is lawful to offer the securities without disclosure under Chapter 6D of the Australian Corporations Act under one or more exemptions set out in section 708 of the Australian Corporations Act, (ii) this prospectus is made available in Australia only to those persons as set forth in clause (i) above, and (iii) the offeree must be sent a notice stating in substance that by accepting this offer, the offeree represents that the offeree is such a person as set forth in clause (i) above, and, unless permitted under the Australian Corporations Act, agrees not to sell or offer for sale within Australia any of the securities sold to the offeree within 12 months after its transfer to the offeree under this prospectus.

Canada

The securities may be sold in Canada only to purchasers purchasing, or deemed to be purchasing, as principal that are accredited investors, as defined in National Instrument 45-106 Prospectus Exemptions or subsection 73.3(1) of the Securities Act (Ontario), and are permitted clients, as defined in National Instrument 31-103 Registration Requirements, Exemptions and Ongoing Registrant Obligations. Any resale of the securities must be made in accordance with an exemption from, or in a transaction not subject to, the prospectus requirements of applicable securities laws. Securities legislation in certain provinces or territories of Canada may provide a purchaser with remedies for rescission or damages if this prospectus (including any amendment thereto) contains a misrepresentation, provided that the remedies for rescission or damages are exercised by the purchaser within the time limit prescribed by the securities legislation of the purchaser’s province or territory. The purchaser should refer to any applicable provisions of the securities legislation of the purchaser’s province or territory for particulars of these rights or consult with a legal advisor.

China

The information in this document does not constitute a public offer of the securities, whether by way of sale or subscription, in the People’s Republic of China (excluding, for purposes of this paragraph, Hong Kong Special Administrative Region, Macau Special Administrative Region and Taiwan). The securities may not be offered or sold directly or indirectly in the PRC to legal or natural persons other than directly to “qualified domestic institutional investors.”

European Economic Area — Belgium, Germany, Luxembourg and Netherlands

The information in this document has been prepared on the basis that all offers of securities will be made pursuant to an exemption under the Directive 2003/71/EC (“Prospectus Directive”), as implemented in Member States of the European Economic Area (each, a “Relevant Member State”), from the requirement to produce a prospectus for offers of securities.

An offer to the public of securities has not been made, and may not be made, in a Relevant Member State except pursuant to one of the following exemptions under the Prospectus Directive as implemented in that Relevant Member State:

•to legal entities that are authorized or regulated to operate in the financial markets or, if not so authorized or regulated, whose corporate purpose is solely to invest in securities;

•to any legal entity that has two or more of (i) an average of at least 250 employees during its last fiscal year; (ii) a total balance sheet of more than €43,000,000 (as shown on its last annual unconsolidated or consolidated financial statements) and (iii) an annual net turnover of more than €50,000,000 (as shown on its last annual unconsolidated or consolidated financial statements);

•to fewer than 100 natural or legal persons (other than qualified investors within the meaning of Article 2(1)(e) of the Prospectus Directive) subject to obtaining our prior consent or any underwriter for any such offer; or

•in any other circumstances falling within Article 3(2) of the Prospectus Directive, provided that no such offer of securities shall require us to publish a prospectus pursuant to Article 3 of the Prospectus Directive.

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France

This document is not being distributed in the context of a public offering of financial securities (offre au public de titres financiers) in France within the meaning of Article L.411-1 of the French Monetary and Financial Code (Code monétaire et financier) and Articles 211-1 et seq. of the General Regulation of the French Autorité des marchés financiers (“AMF”). The securities have not been offered or sold and will not be offered or sold, directly or indirectly, to the public in France.

This document and any other offering material relating to the securities have not been, and will not be, submitted to the AMF for approval in France and, accordingly, may not be distributed or caused to distributed, directly or indirectly, to the public in France.

Such offers, sales and distributions have been and shall only be made in France to (i) qualified investors (investisseurs qualifiés) acting for their own account, as defined in and in accordance with Articles L.411-2-II-2 and D.411-1 to D.411-3, D. 744-1, D.754-1 and D.764-1 of the French Monetary and Financial Code and any implementing regulation and/or (ii) a restricted number of non-qualified investors (cercle restreint d’investisseurs) acting for their own account, as defined in and in accordance with Articles L.411-2-II-2° and D.411-4, D.744-1, D.754-1 and D.764-1 of the French Monetary and Financial Code and any implementing regulation.

Pursuant to Article 211-3 of the General Regulation of the AMF, investors in France are informed that the securities cannot be distributed (directly or indirectly) to the public by the investors otherwise than in accordance with Articles L.411-1, L.411-2, L.412-1 and L.621-8 to L.621-8-3 of the French Monetary and Financial Code.

Ireland

The information in this document does not constitute a prospectus under any Irish laws or regulations and this document has not been filed with or approved by any Irish regulatory authority as the information has not been prepared in the context of a public offering of securities in Ireland within the meaning of the Irish Prospectus (Directive 2003/71/EC) Regulations 2005 (the “Prospectus Regulations”). The securities have not been offered or sold, and will not be offered, sold or delivered directly or indirectly in Ireland by way of a public offering, except to (i) qualified investors as defined in Regulation 2(l) of the Prospectus Regulations and (ii) fewer than 100 natural or legal persons who are not qualified investors.

Israel

The securities offered by this prospectus have not been approved or disapproved by the Israeli Securities Authority (the ISA), or ISA, nor have such securities been registered for sale in Israel. The shares may not be offered or sold, directly or indirectly, to the public in Israel, absent the publication of a prospectus. The ISA has not issued permits, approvals or licenses in connection with this offering or publishing the prospectus; nor has it authenticated the details included herein, confirmed their reliability or completeness, or rendered an opinion as to the quality of the securities being offered. Any resale in Israel, directly or indirectly, to the public of the securities offered by this prospectus is subject to restrictions on transferability and must be effected only in compliance with the Israeli securities laws and regulations.

Italy

The offering of the securities in the Republic of Italy has not been authorized by the Italian Securities and Exchange Commission (Commissione Nazionale per le Società e la Borsa, “CONSOB” pursuant to the Italian securities legislation and, accordingly, no offering material relating to the securities may be distributed in Italy and such securities may not be offered or sold in Italy in a public offer within the meaning of Article 1.1(t) of Legislative Decree No. 58 of 24 February 1998 (“Decree No. 58”), other than:

•to Italian qualified investors, as defined in Article 100 of Decree no. 58 by reference to Article 34-ter of CONSOB Regulation no. 11971 of 14 May 1999 (“Regulation no. 1197l”) as amended (“Qualified Investors”); and

•in other circumstances that are exempt from the rules on public offer pursuant to Article 100 of Decree No. 58 and Article 34-ter of Regulation No. 11971 as amended.

Any offer, sale or delivery of the securities or distribution of any offer document relating to the securities in Italy (excluding placements where a Qualified Investor solicits an offer from the issuer) under the paragraphs above must be:

•made by investment firms, banks or financial intermediaries permitted to conduct such activities in Italy in accordance with Legislative Decree No. 385 of 1 September 1993 (as amended), Decree No. 58, CONSOB Regulation No. 16190 of 29 October 2007 and any other applicable laws; and

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•in compliance with all relevant Italian securities, tax and exchange controls and any other applicable laws.

Any subsequent distribution of the securities in Italy must be made in compliance with the public offer and prospectus requirement rules provided under Decree No. 58 and the Regulation No. 11971 as amended, unless an exception from those rules applies. Failure to comply with such rules may result in the sale of such securities being declared null and void and in the liability of the entity transferring the securities for any damages suffered by the investors.

Japan

The securities have not been and will not be registered under Article 4, paragraph 1 of the Financial Instruments and Exchange Law of Japan (Law No. 25 of 1948), as amended (the “FIEL”) pursuant to an exemption from the registration requirements applicable to a private placement of securities to Qualified Institutional Investors (as defined in and in accordance with Article 2, paragraph 3 of the FIEL and the regulations promulgated thereunder). Accordingly, the securities may not be offered or sold, directly or indirectly, in Japan or to, or for the benefit of, any resident of Japan other than Qualified Institutional Investors. Any Qualified Institutional Investor who acquires securities may not resell them to any person in Japan that is not a Qualified Institutional Investor, and acquisition by any such person of securities is conditional upon the execution of an agreement to that effect.

New Zealand

The shares of common stock offered hereby have not been offered or sold, and will not be offered or sold, directly or indirectly in New Zealand and no offering materials or advertisements have been or will be distributed in relation to any offer of shares in New Zealand, in each case other than:

•to persons whose principal business is the investment of money or who, in the course of and for the purposes of their business, habitually invest money;

•to persons who in all the circumstances can properly be regarded as having been selected otherwise than as members of the public;

•to persons who are each required to pay a minimum subscription price of at least NZ$500,000 for the shares before the allotment of those shares (disregarding any amounts payable, or paid, out of money lent by the issuer or any associated person of the issuer); or

•in other circumstances where there is no contravention of the Securities Act 1978 of New Zealand (or any statutory modification or reenactment of, or statutory substitution for, the Securities Act 1978 of New Zealand).

Portugal

This document is not being distributed in the context of a public offer of financial securities (oferta pública de valores mobiliários) in Portugal, within the meaning of Article 109 of the Portuguese Securities Code (Código dos Valores Mobiliários). The securities have not been offered or sold and will not be offered or sold, directly or indirectly, to the public in Portugal. This document and any other offering material relating to the securities have not been, and will not be, submitted to the Portuguese Securities Market Commission (Comissăo do Mercado de Valores Mobiliários) for approval in Portugal and, accordingly, may not be distributed or caused to distributed, directly or indirectly, to the public in Portugal, other than under circumstances that are deemed not to qualify as a public offer under the Portuguese Securities Code. Such offers, sales and distributions of securities in Portugal are limited to persons who are “qualified investors” (as defined in the Portuguese Securities Code). Only such investors may receive this document and they may not distribute it or the information contained in it to any other person.

Sweden

This document has not been, and will not be, registered with or approved by Finansinspektionen (the Swedish Financial Supervisory Authority). Accordingly, this document may not be made available, nor may the securities be offered for sale in Sweden, other than under circumstances that are deemed not to require a prospectus under the Swedish Financial Instruments Trading Act (1991:980) (Sw. lag (1991:980) om handel med finansiella instrument). Any offering of securities in Sweden is limited to persons who are “qualified investors” (as defined in the Financial Instruments Trading Act). Only such investors may receive this document and they may not distribute it or the information contained in it to any other person.

Switzerland

The securities may not be publicly offered in Switzerland and will not be listed on the SIX Swiss Exchange (“SIX”) or on any other stock exchange or regulated trading facility in Switzerland. This document has been prepared without regard to the disclosure standards for issuance prospectuses under art. 652a or art. 1156 of the Swiss Code of Obligations or the disclosure standards for listing prospectuses under art. 27 ff. of the SIX Listing Rules or the listing rules of any other stock exchange or

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regulated trading facility in Switzerland. Neither this document nor any other offering material relating to the securities may be publicly distributed or otherwise made publicly available in Switzerland.

Neither this document nor any other offering material relating to the securities have been or will be filed with or approved by any Swiss regulatory authority. In particular, this document will not be filed with, and the offer of securities will not be supervised by, the Swiss Financial Market Supervisory Authority (FINMA).

This document is personal to the recipient only and not for general circulation in Switzerland.

United Arab Emirates

Neither this document nor the securities have been approved, disapproved or passed on in any way by the Central Bank of the United Arab Emirates or any other governmental authority in the United Arab Emirates, nor have we received authorization or licensing from the Central Bank of the United Arab Emirates or any other governmental authority in the United Arab Emirates to market or sell the securities within the United Arab Emirates. This document does not constitute and may not be used for the purpose of an offer or invitation. We may not render services relating to the securities within the United Arab Emirates, including the receipt of applications and/or the allotment or redemption of such shares.

No offer or invitation to subscribe for securities is valid or permitted in the Dubai International Financial Centre.

United Kingdom

Neither the information in this document nor any other document relating to the offer has been delivered for approval to the Financial Services Authority in the United Kingdom and no prospectus (within the meaning of section 85 of the Financial Services and Markets Act 2000, as amended (“FSMA”)) has been published or is intended to be published in respect of the securities. This document is issued on a confidential basis to “qualified investors” (within the meaning of section 86(7) of FSMA) in the United Kingdom, and the securities may not be offered or sold in the United Kingdom by means of this document, any accompanying letter or any other document, except in circumstances which do not require the publication of a prospectus pursuant to section 86(1) FSMA. This document should not be distributed, published or reproduced, in whole or in part, nor may its contents be disclosed by recipients to any other person in the United Kingdom.

Any invitation or inducement to engage in investment activity (within the meaning of section 21 of FSMA) received in connection with the issue or sale of the securities has only been communicated or caused to be communicated and will only be communicated or caused to be communicated in the United Kingdom in circumstances in which section 21(1) of FSMA does not apply us.

In the United Kingdom, this document is being distributed only to, and is directed at, persons (i) who have professional experience in matters relating to investments falling within Article 19(5) (investment professionals) of the Financial Services and Markets Act 2000 (Financial Promotions) Order 2005 (“FPO”), (ii) who fall within the categories of persons referred to in Article 49(2)(a) to (d) (high net worth companies, unincorporated associations, etc.) of the FPO or (iii) to whom it may otherwise be lawfully communicated (together “relevant persons”). The investments to which this document relates are available only to, and any invitation, offer or agreement to purchase will be engaged in only with, relevant persons. Any person who is not a relevant person should not act or rely on this document or any of its contents.

Transfer Agent

Our transfer agent is Continental Stock Transfer & Trust Company, 1 State Street, 30th Floor, New York, NY 10004, and its telephone number is 212-509-4000.

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WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly and current reports, proxy statements, and other information with the SEC. We have filed with the SEC a registration statement on Form S-3 under the Securities Act with respect to the shares of common stock we are offering under this prospectus supplement. This prospectus supplement and the accompanying prospectus do not contain all of the information set forth in the registration statement and the exhibits to the registration statement. The SEC maintains a website that contains reports, proxy and information statements, and other information about issuers, such as us, who file electronically with the SEC. The address of that website is http://www.sec.gov.

INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

The SEC’s rules allow us to “incorporate by reference” information and reports we file with it, which means that we can disclose important information to you by referring you to another document filed separately with the SEC. The information incorporated by reference is considered to be part of this prospectus supplement and the accompanying prospectus. Information in this prospectus supplement supersedes information incorporated by reference that we filed with the SEC prior to the date of this prospectus supplement, while information that we file later with the SEC will automatically update and supersede the information in this prospectus supplement and the accompanying prospectus. We incorporate by reference the documents listed below and any future filings (other than current reports furnished under Item 2.02 or Item 7.01 of Form 8-K and exhibits filed on such form that are related to such items) we make with the SEC under Sections 13(a), 13(c), 14, or 15(d) of the Securities Exchange Act of 1934, as amended, after the date of this prospectus supplement and prior to the termination of the offering of the common stock covered by this prospectus supplement:

•Our Annual Report on Form 10-K for the year ended December 31, 2021, filed with the SEC on March 10, 2022.

•Our Definitive Proxy Statement on Schedule 14A, filed with the SEC on March 25, 2022 (solely to the extent specifically incorporated by reference into our Annual Report on Form 10-K for the year ended December 31, 2021).

•Our Quarterly Report on Form 10-Q for the quarter ended March 31, 2022, filed with the SEC on May 4, 2022.

•Our Current Reports on Form 8-K, filed with the SEC on May 6, 2022, July 14, 2022, and July 27, 2022.

•The description of our common stock contained in our Registration Statement on Form 8-A, filed with the SEC on April 26, 2016 (File No. 001-37756), including any amendment or report filed for the purpose of updating such description.

You may request a free copy of any of the documents incorporated by reference in this prospectus supplement by writing or telephoning us at:

Global Water Resources, Inc.

21410 N. 19th Avenue #220

Phoenix, Arizona 85027

(480) 360-7775

Attention: Corporate Secretary

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LEGAL MATTERS

The validity of the shares of our common stock offered hereby will be passed upon for us by Snell & Wilmer L.L.P., Phoenix, Arizona. The underwriter is being represented by Dorsey & Whitney LLP, Seattle, Washington.

EXPERTS

The financial statements incorporated in this Prospectus Supplement by reference from the Company’s Annual Report on Form 10-K for the year ended December 31, 2021 have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their report, which is incorporated herein by reference. Such financial statements have been so incorporated in reliance upon the report of such firm given upon their authority as experts in accounting and auditing.

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Prospectus

$100,000,000
Common Stock

Debt Securities

We may offer and sell up to $100,000,000 in the aggregate of shares of our common stock and debt securities from time to time in one or more offerings. This prospectus provides you with a general description of the securities.

Each time we offer and sell securities, we will provide a supplement to this prospectus that contains specific information about the offering, as well as the amounts, prices and terms of the securities being offered. The prospectus supplement may also add, update or change information contained in this prospectus with respect to that offering. You should carefully read this prospectus and the applicable prospectus supplement before you invest in any of our securities.

We may offer and sell the securities described in this prospectus and any prospectus supplement to or through one or more underwriters, dealers and agents, or directly to purchasers, or through a combination of these methods. If any underwriters, dealers or agents are involved in the sale of any of the securities, their names and any applicable purchase price, fee, commission or discount arrangement between or among them will be set forth, or will be calculable from the information set forth, in the applicable prospectus supplement. See the sections of this prospectus entitled “About this Prospectus” and “Plan of Distribution” for more information. No securities may be sold without delivery of this prospectus and the applicable prospectus supplement describing the method and terms of the offering of such securities.

Our common stock is listed on the NASDAQ Global Market under the symbol “GWRS.” On September 4, 2020, the last reported sale price of our common stock on the NASDAQ Global Market was $11.27 per share.

As of the date of this prospectus, we are an “emerging growth company” as the term is used in the Jumpstart Our Business Act of 2012 and are subject to reduced public company reporting requirements.

INVESTING IN OUR SECURITIES INVOLVES A HIGH DEGREE OF RISK. YOU SHOULD CAREFULLY READ AND CONSIDER THE RISK FACTORS DESCRIBED IN THIS PROSPECTUS BEGINNING ON PAGE 2, ANY ACCOMPANYING PROSPECTUS SUPPLEMENT, AND IN THE DOCUMENTS INCORPORATED BY REFERENCE INTO THIS PROSPECTUS AND THE APPLICABLE PROSPECTUS SUPPLEMENT.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

The date of this prospectus is September 8, 2020.

ABOUT THIS PROSPECTUS

This prospectus is part of a registration statement that we filed with the U.S. Securities and Exchange Commission (the “SEC”) using a “shelf” registration process. Under this shelf registration process, we may sell the securities described in this prospectus from time to time and in one or more offerings up to an aggregate dollar amount of $100,000,000. Each time that we sell securities, we will provide a prospectus supplement to this prospectus that contains specific information about the securities being offered and sold and the specific terms of that offering. We may also authorize one or more free writing prospectuses to be provided to you that may contain material information relating to these offerings. The prospectus supplement may also add, update or change information contained in this prospectus with respect to that offering. If there is any inconsistency between the information in this prospectus and the applicable prospectus supplement, you should rely on the prospectus supplement. Before purchasing any securities, you should carefully read both this prospectus and the applicable prospectus supplement, together with the additional information described under the headings “Where You Can Find More Information” and “Incorporation of Certain Documents by Reference.”

We have not authorized anyone to provide you with any information or to make any representations other than those contained in this prospectus, any applicable prospectus supplement or any free writing prospectuses prepared by or on behalf of us or to which we have referred you. We take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. We will not make an offer to sell these securities in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus and the applicable prospectus supplement to this prospectus is accurate as of the date on its respective cover, and that any information incorporated by reference is accurate only as of the date of the document incorporated by reference, unless we indicate otherwise. Our business, financial condition, results of operations and prospects may have changed since those dates.

Unless the context requires otherwise, references in this prospectus to the “Company,” “we,” “us” and “our” refer to Global Water Resources, Inc., a Delaware corporation, and its consolidated subsidiaries.

OUR COMPANY

Overview

We are a water resource management company that owns, operates, and manages water, wastewater, and recycled water utilities in strategically located communities, principally in metropolitan Phoenix, Arizona. We seek to deploy our integrated approach, which we refer to as “Total Water Management,” a term we use to mean managing the entire water cycle by owning and operating the water, wastewater, and recycled water utilities within the same geographic areas in order to both conserve water and maximize its total economic and social value. We use Total Water Management to promote sustainable communities in areas where we expect growth to outpace the existing potable water supply. Our model focuses on the broad issues of water supply and scarcity and applies principles of water conservation through water reclamation and reuse. Our basic premise is that the world’s water supply is limited and yet can be stretched significantly through effective planning, the use of recycled water, and by providing individuals and communities resources that promote wise water usage practices.

Our Corporation Information

RISK FACTORS

Investing in our securities involves a high degree of risk. Before deciding whether to purchase any of the securities being registered pursuant to the registration statement of which this prospectus is a part, you should consider carefully the risks and uncertainties described in the section entitled “Risk Factors” contained in the applicable prospectus supplement and under similar headings in our Annual Report on Form 10-K for the year ended December 31, 2019 and our Quarterly Report on Form 10-Q for the quarter ended June 30, 2020, as updated by annual, quarterly and other reports and the documents we file with the SEC after the date of this prospectus and that are incorporated by reference herein or in the applicable prospectus supplement. These risks and uncertainties are not the only risks and uncertainties we face. Additional risks and uncertainties not currently known to us, or that we currently view as immaterial, may also impair our business. If any of the risks or uncertainties described in our SEC filings or any additional risks and uncertainties actually occur, our business, financial condition or results of operations could be materially harmed. In such case, the value of our securities could decline and you may lose all or part of your investment.

FORWARD-LOOKING STATEMENTS

This prospectus, including the documents incorporated by reference into this prospectus, contains forward-looking statements within the meaning of federal securities laws and which are subject to certain risks, trends and uncertainties. We use words such as “could,” “would,” “may,” “might,” “will,” “expect,” “likely,” “believe,” “continue,” “anticipate,” “estimate,” “intend,” “plan,” “project” and other similar expressions to identify some forward-looking statements, but not all forward-looking statements include these words. Forward-looking statements involve estimates and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements. These forward-looking statements include, but are not limited to, statements about our strategies; expectations about future business plans, prospective performance, and opportunities, including potential acquisitions; future financial performance; population and growth projections; technologies; revenues; metrics; operating expenses; market trends, including those in the markets in which we operate; liquidity; cash flows and uses of cash; dividends; amount and timing of capital expenditures; depreciation and amortization; tax payments; hedging arrangements; our ability to repay indebtedness and invest in initiatives; impact and resolutions of legal matters; the impact of tax reform; the impact of accounting changes and other pronouncements; and the anticipated impacts from the COVID-19 pandemic on the Company, including to our business operations, results of operations, cash flows, and financial position, and our future responses to the COVID-19 pandemic.

The forward-looking statements contained in this prospectus, including the documents incorporated by reference into this prospectus, are based on assumptions that we have made in light of our industry experience and our perceptions of historical trends, current conditions, expected future developments and other factors we believe are appropriate under the circumstances. As you read and consider this prospectus and any prospectus supplement, you should understand that these statements are not guarantees of performance or results. They involve risks, uncertainties (many of which are beyond our control) and assumptions. Although we believe that these forward-looking statements are based on reasonable assumptions, you should be aware that many factors could affect our actual operating and financial performance and cause our performance to differ materially from the performance anticipated in the forward-looking statements. We believe these factors include, but are not limited to, those described under the sections captioned “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2019 and in our Quarterly Report on Form 10-Q for the quarter ended June 30, 2020, as well as those discussed in any subsequent documents we file with the SEC. Should one or more of these risks or uncertainties materialize, or should any of these assumptions prove incorrect, our actual operating and financial performance may vary in material respects from the performance projected in these forward-looking statements.

Further, any forward-looking statement speaks only as of the date on which it is made, and except as required by law, we undertake no obligation to update any forward-looking statement contained in this prospectus to reflect events or circumstances after the date on which it is made or to reflect the occurrence of anticipated or unanticipated events or circumstances, except as otherwise required by law. New factors that could cause our business not to develop as we expect emerge from time to time, and it is not possible for us to predict all of them. Further, we cannot assess the impact of each currently known or new factor on our results of operations or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements.

USE OF PROCEEDS

Unless otherwise indicated in the applicable prospectus supplement, we intend to use the net proceeds from the sale of any securities offered by us under this prospectus for general corporate purposes, which includes working capital, acquisitions, retirement of debt and other business opportunities. We may temporarily invest such net proceeds in investment-grade, interest-bearing securities until they are used for their stated purpose. We have not determined the amount of net proceeds to be used specifically for such purposes. As a result, management will retain broad discretion over the allocation of net proceeds.

DESCRIPTION OF CAPITAL STOCK

Our authorized capital stock consists of 60,000,000 shares of common stock, par value $0.01 per share, and 5,000,000 shares of undesignated preferred stock, par value $0.01 per share. As of August 10, 2020, there were 22,586,544 shares of our common stock outstanding held by 10 stockholders of record. No shares of preferred stock were issued or outstanding as of August 10, 2020.

The following is a description of some of the terms of our common stock, our amended and restated certificate of incorporation, our amended and restated bylaws, and the Delaware General Corporation Law (the “DGCL”). The following description is not complete and is subject to, and qualified in its entirety by reference to, our amended and restated certificate of incorporation and our amended and restated bylaws, each of which is incorporated by reference as an exhibit to the registration statement of which this prospectus forms a part, and the DGCL. You should read our amended and restated certificate of incorporation, our amended and restated bylaws, and the applicable provisions of the DGCL for a complete statement of the provisions described below and for other provisions that may be important to you.

Common Stock

Holders of our common stock are entitled to one vote for each share held of record on all matters submitted to a vote of the stockholders, including the election of directors, and do not have cumulative voting rights. Accordingly, the holders of a majority of the shares of common stock would normally be entitled to vote in any election of directors and can elect all of the directors standing for election if they so choose.

Holders of common stock are entitled to receive ratably those dividends, if any, as may be declared by our board of directors out of legally available funds. Upon our liquidation, dissolution or winding up, the holders of common stock would normally be entitled to share ratably in the net assets legally available for distribution to stockholders after the payment of all of our debts and other liabilities of our company, subject to prior distribution rights of preferred stock, if any, then outstanding.

Holders of common stock have no preemptive or conversion rights or other subscription rights, and there are no redemption or sinking funds provisions applicable to our common stock.

Preferred Stock

Our board of directors has the authority, without action by our stockholders, to issue preferred stock and to fix voting powers for each class or series of preferred stock, and to provide that any class or series may be subject to redemption, entitled to receive dividends, entitled to rights upon dissolution, or convertible or exchangeable for shares of any other class or classes of capital stock. The rights with respect to a series or class of preferred stock may be greater than the rights attached to our common stock. It is not possible to state the actual effect of the issuance of any shares of our preferred stock on the rights of holders of our common stock until our board of directors determines the specific rights attached to that preferred stock. The effect of issuing preferred stock could include, among other things, one or more of the following:

•restricting dividends in respect of our common stock;

•diluting the voting power of our common stock or providing that holders of preferred stock have the right to vote on matters as a class;

•impairing the liquidation rights of our common stock; or

•delaying or preventing a change of control of us.

Anti-Takeover Provisions

We are subject to the provisions of Section 203 of the DGCL, which generally prohibits persons deemed “interested stockholders” from engaging in a “business combination” with a Delaware corporation for three years following the date such persons become interested stockholders, unless:

•the transaction is approved by the board of directors prior to the time that the interested stockholder became an interested stockholder;

•upon consummation of the transaction which resulted in the stockholder’s becoming an interested stockholder, the interested stockholder owned at least 85% of the voting stock of the corporation outstanding at the time the transaction commenced, excluding stock owned by (i) directors who are also officers of the corporation; and (ii)

employee stock plans in which employee participants do not have the right to determine confidentially whether shares held subject to the plan will be tendered in a tender or exchange offer; or

•subsequent to such time that the stockholder became an interested stockholder, the business combination is approved by the board of directors and authorized at an annual or special meeting of stockholders by at least two-thirds of the outstanding voting stock that is not owned by the interested stockholder.

Generally, a “business combination” includes a merger, asset or stock sale, or other transaction resulting in a financial benefit to the interested stockholder, and an “interested stockholder” is a person who, together with affiliates and associates, owns, or within three years prior to the determination of interested stockholder status did own, 15% or more of a corporation’s voting stock. The existence of this provision may have an anti-takeover effect and may delay, deter or prevent a change of control of our Company.

In addition, our amended and restated certificate of incorporation and amended and restated bylaws contain provisions that may make the acquisition of our company more difficult, including, but not limited to, the following:

•only allowing our board of directors, Chairman of our board of directors, Chief Executive Officer or President to call special meetings of our stockholders;

•setting forth specific procedures regarding how our stockholders may present proposals or nominate directors for election at stockholder meetings;

•requiring advance notice and duration of ownership requirements for stockholder proposals;

•permitting our board of directors to issue preferred stock without stockholder approval; and

•limiting the rights of stockholders to amend our bylaws.

Additionally, certain types of transactions are subject to review by the Arizona Corporation Commission (the “ACC”). For those transactions, the ACC will review whether the transactions will impair the financial status of our regulated utility subsidiaries, prevent our regulated utility subsidiaries from attracting capital at fair and reasonable terms, or impair the ability of our regulated utility subsidiaries to provide safe, reasonable, and adequate service. In addition, the ACC has asserted the authority to determine whether such transactions are in the public interest. Pursuant to this regulatory mandate, the ACC may impose conditions that could discourage, delay or prevent a transaction involving a change in control of our company, or the ACC could deny approval to the transaction outright.

Forum Selection

Our amended and restated certificate of incorporation provides that, unless we consent in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware will, to the fullest extent permitted by law, be the sole and exclusive forum for (1) any derivative action or proceeding brought on behalf of us, (2) any action asserting a claim for breach of a fiduciary duty owed by any of our directors, officers, employees or agents to us or our stockholders, (3) any action asserting a claim arising pursuant to any provision of the DGCL, our amended and restated certificate of incorporation and our amended and restated bylaws, (4) any action to interpret, apply, enforce or determine the validity of our amended and restated certificate of incorporation and our amended and restated bylaws, or (5) any action asserting a claim governed by the internal affairs doctrine, in each case subject to the Court of Chancery of the State of Delaware having personal jurisdiction over the indispensable parties named as defendants therein. Any person or entity purchasing or otherwise acquiring any interest in shares of our capital stock will be deemed to have notice of and consented to the forum provisions in our amended and restated certificate of incorporation. However, the enforce ability of similar forum provisions in other companies’ certificates of incorporation or bylaws has been challenged in legal proceedings, and it is possible that a court could find these types of provisions to be inapplicable or unenforceable.

Transfer Agent and Registrar

The transfer agent and registrar for our common stock is Continental Stock Transfer & Trust Company.

Listing

Our common stock is listed on the NASDAQ Global Market under the symbol “GWRS.”

DESCRIPTION OF DEBT SECURITIES

The following description, together with the additional information we include in any applicable prospectus supplement, summarizes certain general terms and provisions of the debt securities that we may offer under this prospectus. When we offer to sell a particular series of debt securities, we will describe the specific terms of the series in a supplement to this prospectus. We will also indicate in the supplement to what extent the general terms and provisions described in this prospectus apply to a particular series of debt securities.

We may issue debt securities either separately, or together with, or upon the conversion or exercise of or in exchange for, other securities. Debt securities may be our senior, senior subordinated or subordinated obligations, may be secured or unsecured and, unless otherwise specified in a supplement to this prospectus, the debt securities will be our direct obligations and may be issued in one or more series. However, if the debt securities are secured, the security will not include any security interest in the assets of our regulated utility subsidiaries nor any security interest in the portion of the revenues of our regulated utility subsidiaries necessary to meet their direct and indirect operation and maintenance expenses, including general and administrative expenses.

The debt securities will be issued under an indenture between us and a third party to be identified therein. We have summarized select portions of the indenture below. The summary is not complete. The form of the indenture has been filed as an exhibit to the registration statement and you should read the indenture for provisions that may be important to you. Capitalized terms used in the summary and not defined herein have the meanings specified in the indenture.

As used in this section only, “GWRI,” “we,” “our” or “us” refer to Global Water Resources, Inc. excluding our subsidiaries, unless expressly stated or the context otherwise requires.

General

The terms of each series of debt securities will be established by or pursuant to a resolution of our board of directors and set forth or determined in the manner provided in a resolution of our board of directors, in an officer’s certificate or by a supplemental indenture. The particular terms of each series of debt securities will be described in a prospectus supplement relating to such series (including any pricing supplement or term sheet).

We can issue an unlimited amount of debt securities under the indenture that may be in one or more series with the same or various maturities, at par, at a premium, or at a discount. We will set forth in a prospectus supplement (including any pricing supplement or term sheet) relating to any series of debt securities being offered, the aggregate principal amount and the following terms of the debt securities, if applicable:

•the title and ranking of the debt securities (including the terms of any subordination provisions);

•the price or prices (expressed as a percentage of the principal amount) at which we will sell the debt securities;

•any limit on the aggregate principal amount of the debt securities;

•the date or dates on which the principal of the securities of the series is payable;

•the rate or rates (which may be fixed or variable) per annum or the method used to determine the rate or rates (including any commodity, commodity index, stock exchange index or financial index) at which the debt securities will bear interest, the date or dates from which interest will accrue, the date or dates on which interest will commence and be payable and any regular record date for the interest payable on any interest payment date;

•the place or places where principal of, and interest, if any, on the debt securities will be payable (and the method of such payment), where the securities of such series may be surrendered for registration of transfer or exchange, and where notices and demands to us in respect of the debt securities may be delivered;

•the period or periods within which, the price or prices at which and the terms and conditions upon which we may redeem the debt securities;

•any obligation we have to redeem or purchase the debt securities pursuant to any sinking fund or analogous provisions or at the option of a holder of debt securities and the period or periods within which, the price or prices

at which and in the terms and conditions upon which securities of the series shall be redeemed or purchased, in whole or in part, pursuant to such obligation;

•the dates on which and the price or prices at which we will repurchase debt securities at the option of the holders of debt securities and other detailed terms and provisions of these repurchase obligations;

•the denominations in which the debt securities will be issued, if other than denominations of $1,000 and any integral multiple thereof;

•whether the debt securities will be issued in the form of certificated debt securities or global debt securities;

•the portion of principal amount of the debt securities payable upon declaration of acceleration of the maturity date, if other than the principal amount;

•the currency of denomination of the debt securities, which may be United States Dollars or any foreign currency, and if such currency of denomination is a composite currency, the agency or organization, if any, responsible for overseeing such composite currency;

•the designation of the currency, currencies or currency units in which payment of principal of, premium and interest on the debt securities will be made;

•if payments of principal of, premium or interest on the debt securities will be made in one or more currencies or currency units other than that or those in which the debt securities are denominated, the manner in which the exchange rate with respect to these payments will be determined;

•the manner in which the amounts of payment of principal of, premium, if any, or interest on the debt securities will be determined, if these amounts may be determined by reference to an index based on a currency or currencies or by reference to a commodity, commodity index, stock exchange index or financial index;

•any provisions relating to any security provided for the debt securities;

•any addition to, deletion of or change in the Events of Default described in this prospectus or in the indenture with respect to the debt securities and any change in the acceleration provisions described in this prospectus or in the indenture with respect to the debt securities;

•any addition to, deletion of or change in the covenants described in this prospectus or in the indenture with respect to the debt securities;

•any depositaries, interest rate calculation agents, exchange rate calculation agents or other agents with respect to the debt securities;

•the provisions, if any, relating to conversion or exchange of any debt securities of such series, including if applicable, the conversion or exchange price and period, provisions as to whether conversion or exchange will be mandatory, the events requiring an adjustment of the conversion or exchange price and provisions affecting conversion or exchange;

•any other terms of the debt securities, which may supplement, modify or delete any provision of the indenture as it applies to that series, including any terms that may be required under applicable law or regulations or advisable in connection with the marketing of the securities; and

•whether any of our direct or indirect subsidiaries will guarantee the debt securities of that series, including the terms of subordination, if any, of such guarantees.

We may issue debt securities that provide for an amount less than their stated principal amount to be due and payable upon declaration of acceleration of their maturity pursuant to the terms of the indenture. We will provide you with information on the federal income tax considerations and other special considerations applicable to any of these debt securities in the applicable prospectus supplement.

If we denominate the purchase price of any of the debt securities in a foreign currency or currencies or a foreign currency unit or units, or if the principal of and any premium and interest on any series of debt securities is payable in a foreign currency or currencies or a foreign currency unit or units, we will provide you with information on the restrictions, elections, general tax considerations, specific terms and other information with respect to that issue of debt securities and such foreign currency or currencies or foreign currency unit or units in the applicable prospectus supplement.

Transfer and Exchange

Each debt security will be represented by either one or more global securities registered in the name of The Depository Trust Company (“DTC” or the “Depositary”) or a nominee of the Depositary (we will refer to any debt security represented by a global debt security as a “book-entry debt security”), or a certificate issued in definitive registered form (we will refer to any debt security represented by a certificated security as a “certificated debt security”) as set forth in the applicable prospectus supplement. Except as set forth under the heading “Global Debt Securities and Book-Entry System” below, book-entry debt securities will not be issuable in certificated form.

Certificated Debt Securities. You may transfer or exchange certificated debt securities at any office we maintain for this purpose in accordance with the terms of the indenture. No service charge will be made for any transfer or exchange of certificated debt securities, but we may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection with a transfer or exchange.

You may effect the transfer of certificated debt securities and the right to receive the principal of, premium and interest on certificated debt securities only by surrendering the certificate representing those certificated debt securities and either reissuance by us or the trustee of the certificate to the new holder or the issuance by us or the trustee of a new certificate to the new holder.

Global Debt Securities and Book-Entry System. Each global debt security representing book-entry debt securities will be deposited with, or on behalf of, the Depositary, and registered in the name of the Depositary or a nominee of the Depositary. Please see “Global Securities.”

Covenants

We will set forth in the applicable prospectus supplement any restrictive covenants applicable to any issue of debt securities.

No Protection in the Event of a Change of Control

Unless we state otherwise in the applicable prospectus supplement, the debt securities will not contain any provisions which may afford holders of the debt securities protection in the event we have a change in control or in the event of a highly leveraged transaction (whether or not such transaction results in a change in control) which could adversely affect holders of debt securities.

Consolidation, Merger and Sale of Assets

We may not consolidate with or merge with or into, or convey, transfer or lease all or substantially all of our properties and assets to any person (a “successor person”) unless:

• we are the surviving corporation or the successor person (if other than GWRI) is a corporation organized and validly existing under the laws of any U.S. domestic jurisdiction and expressly assumes our obligations on the debt securities and under the indenture; and

•immediately after giving effect to the transaction, no Default or Event of Default, shall have occurred and be continuing.

Notwithstanding the above, any of our subsidiaries may consolidate with, merge into or transfer all or part of its properties to us or any of our other subsidiaries.

Defaults and Remedies

“Event of Default” means with respect to any series of debt securities, any of the following:

•default in the payment of any interest upon any debt security of that series when it becomes due and payable, and continuance of such default for a period of 30 days (unless the entire amount of the payment is deposited by us with the trustee or with a paying agent prior to the expiration of the 30-day period);

•default in the payment of principal of any security of that series at its maturity;

•default in the performance or breach of any other covenant or warranty by us in the indenture (other than a covenant or warranty that has been included in the indenture solely for the benefit of a series of debt securities other than that series), which default continues uncured for a period of 60 days after we receive written notice from the trustee or GWRI and the trustee receive written notice from the holders of not less than 25% in principal amount of the outstanding debt securities of that series as provided in the indenture;

•certain voluntary or involuntary events of bankruptcy, insolvency or reorganization of GWRI; and

•any other Event of Default provided with respect to debt securities of that series that is described in the applicable prospectus supplement.

No Event of Default with respect to a particular series of debt securities (except as to certain events of bankruptcy, insolvency or reorganization) necessarily constitutes an Event of Default with respect to any other series of debt securities. The occurrence of certain Events of Default or an acceleration under the indenture may constitute an event of default under certain indebtedness of ours or our subsidiaries outstanding from time to time.

We will provide the trustee written notice of any Default or Event of Default within 30 days of becoming aware of the occurrence of such Default or Event of Default, which notice will describe in reasonable detail the status of such Default or Event of Default and what action we are taking or propose to take in respect thereof.

If an Event of Default with respect to debt securities of any series at the time outstanding occurs and is continuing, then the trustee or the holders of not less than 25% in principal amount of the outstanding debt securities of that series may, by a notice in writing to us (and to the trustee if given by the holders), declare to be due and payable immediately the principal of (or, if the debt securities of that series are discount securities, that portion of the principal amount as may be specified in the terms of that series) and accrued and unpaid interest, if any, on all debt securities of that series. In the case of an Event of Default resulting from certain events of bankruptcy, insolvency or reorganization, the principal (or such specified amount) of and accrued and unpaid interest, if any, on all outstanding debt securities will become and be immediately due and payable without any declaration or other act on the part of the trustee or any holder of outstanding debt securities. At any time after a declaration of acceleration with respect to debt securities of any series has been made, but before a judgment or decree for payment of the money due has been obtained by the trustee, the holders of a majority in principal amount of the outstanding debt securities of that series may rescind and annul the acceleration if all Events of Default, other than the non-payment of accelerated principal and interest, if any, with respect to debt securities of that series, have been cured or waived as provided in the indenture. We refer you to the prospectus supplement relating to any series of debt securities that are discount securities for the particular provisions relating to acceleration of a portion of the principal amount of such discount securities upon the occurrence of an Event of Default.

The indenture provides that the trustee may refuse to perform any duty or exercise any of its rights or powers under the indenture unless the trustee receives indemnity satisfactory to it against any cost, liability or expense which might be incurred by it in performing such duty or exercising such right or power. Subject to certain rights of the trustee, the holders of a majority in principal amount of the outstanding debt securities of any series will have the right to direct the time, method and place of conducting any proceeding for any remedy available to the trustee or exercising any trust or power conferred on the trustee with respect to the debt securities of that series.

No holder of any debt security of any series will have any right to institute any proceeding, judicial or otherwise, with respect to the indenture or for the appointment of a receiver or trustee, or for any remedy under the indenture, unless:

•that holder has previously given to the trustee written notice of a continuing Event of Default with respect to debt securities of that series; and

•the holders of not less than 25% in principal amount of the outstanding debt securities of that series have made written request, and offered indemnity or security satisfactory to the trustee, to the trustee to institute the proceeding as trustee, and the trustee has not received from the holders of not less than a majority in principal amount of the outstanding debt securities of that series a direction inconsistent with that request and has failed to institute the proceeding within 60 days.

Notwithstanding any other provision in the indenture, the holder of any debt security will have an absolute and unconditional right to receive payment of the principal of, premium and any interest on that debt security on or after the due dates expressed in that debt security and to institute suit for the enforcement of payment.

The indenture requires us, within 120 days after the end of our fiscal year, to furnish to the trustee a statement as to compliance with the indenture. If a Default or Event of Default occurs and is continuing with respect to the securities of any series and if it is known to a responsible officer of the trustee, the trustee shall mail to each security holder of the securities of that series notice of a Default or Event of Default within 90 days after it occurs or, if later, after a responsible officer of the trustee has knowledge of such Default or Event of Default. The indenture provides that the trustee may withhold notice to the holders of debt securities of any series of any Default or Event of Default (except in payment on any debt securities of that series) with respect to debt securities of that series if the trustee determines in good faith that withholding notice is in the interest of the holders of those debt securities.

Modification and Waiver

We and the trustee may modify, amend or supplement the indenture or the debt securities of any series without the consent of any holder of any debt security:

•to cure any ambiguity, defect or inconsistency;

•to comply with covenants in the indenture described above under the heading “Consolidation, Merger and Sale of Assets”;

•to provide for uncertificated securities in addition to or in place of certificated securities;

•to add guarantees with respect to debt securities of any series or secure debt securities of any series;

•to surrender any of our rights or powers under the indenture;

•to add covenants or events of default for the benefit of the holders of debt securities of any series;

•to comply with the applicable procedures of the applicable depositary;

•to make any change that does not adversely affect the rights of any holder of debt securities;

•to provide for the issuance of and establish the form and terms and conditions of debt securities of any series as permitted by the indenture;

•to effect the appointment of a successor trustee with respect to the debt securities of any series and to add to or change any of the provisions of the indenture to provide for or facilitate administration by more than one trustee; or

•to comply with requirements of the SEC in order to effect or maintain the qualification of the indenture under the Trust Indenture Act.

We may also modify and amend the indenture with the consent of the holders of at least a majority in principal amount of the outstanding debt securities of each series affected by the modifications or amendments. We may not make any modification or amendment without the consent of the holders of each affected debt security then outstanding if that amendment will:

•reduce the amount of debt securities whose holders must consent to an amendment, supplement or waiver;

•reduce the rate of or extend the time for payment of interest (including default interest) on any debt security;

•reduce the principal of or premium on or change the fixed maturity of any debt security or reduce the amount of, or postpone the date fixed for, the payment of any sinking fund or analogous obligation with respect to any series of debt securities;

•reduce the principal amount of discount securities payable upon acceleration of maturity;

•waive a default in the payment of the principal of, premium or interest on any debt security (except a rescission of acceleration of the debt securities of any series by the holders of at least a majority in aggregate principal amount of the then outstanding debt securities of that series and a waiver of the payment default that resulted from such acceleration);

•make the principal of or premium or interest on any debt security payable in currency other than that stated in the debt security;

•make any change to certain provisions of the indenture relating to, among other things, the right of holders of debt securities to receive payment of the principal of, premium and interest on those debt securities and to institute suit for the enforcement of any such payment and to waivers or amendments; or

•waive a redemption payment with respect to any debt security.

Except for certain specified provisions, the holders of at least a majority in principal amount of the outstanding debt securities of any series may on behalf of the holders of all debt securities of that series waive our compliance with provisions of the indenture. The holders of a majority in principal amount of the outstanding debt securities of any series may on behalf of the holders of all the debt securities of such series waive any past default under the indenture with respect to that series and its consequences, except a default in the payment of the principal of, premium or any interest on any debt security of that series; provided, however, that the holders of a majority in principal amount of the outstanding debt securities of any series may rescind an acceleration and its consequences, including any related payment default that resulted from the acceleration.

Defeasance of Debt Securities and Certain Covenants in Certain Circumstances

Legal Defeasance. The indenture provides that, unless otherwise provided by the terms of the applicable series of debt securities, we may be discharged from any and all obligations in respect of the debt securities of any series (subject to certain exceptions). We will be so discharged upon the deposit with the trustee, in trust, of money and/or U.S. government obligations or, in the case of debt securities denominated in a single currency other than U.S. Dollars, government obligations of the government that issued or caused to be issued such currency, that, through the payment of interest and principal in accordance with their terms, will provide money or U.S. government obligations in an amount sufficient in the opinion of a nationally recognized firm of independent public accountants or investment bank to pay and discharge each installment of principal, premium and interest on and any mandatory sinking fund payments in respect of the debt securities of that series on the stated maturity of those payments in accordance with the terms of the indenture and those debt securities.

This discharge may occur only if, among other things, we have delivered to the trustee an opinion of counsel stating that we have received from, or there has been published by, the United States Internal Revenue Service a ruling or, since the date of execution of the indenture, there has been a change in the applicable United States federal income tax law, in either case to the effect that, and based thereon such opinion shall confirm that, the beneficial owners of the debt securities of that series will not recognize income, gain or loss for United States federal income tax purposes as a result of the deposit, defeasance and discharge and will be subject to United States federal income tax on the same amounts and in the same manner and at the same times as would have been the case if the deposit, defeasance and discharge had not occurred.

Defeasance of Certain Covenants. The indenture provides that, unless otherwise provided by the terms of the applicable series of debt securities, upon compliance with certain conditions:

•we may omit to comply with the covenant described under the heading “Consolidation, Merger and Sale of Assets” and certain other covenants set forth in the indenture, as well as any additional covenants which may be set forth in the applicable prospectus supplement; and

•any omission to comply with those covenants will not constitute a Default or an Event of Default with respect to the debt securities of that series (“covenant defeasance”).

The conditions include:

•depositing with the trustee money and/or U.S. government obligations or, in the case of debt securities denominated in a single currency other than U.S. Dollars, government obligations of the government that issued or caused to be issued such currency, that, through the payment of interest and principal in accordance with their terms, will provide money in an amount sufficient in the opinion of a nationally recognized firm of independent public accountants or investment bank to pay and discharge each installment of principal of, premium and interest on and any mandatory sinking fund payments in respect of the debt securities of that series on the stated maturity of those payments in accordance with the terms of the indenture and those debt securities; and

•delivering to the trustee an opinion of counsel to the effect that the beneficial owners of the debt securities of that series will not recognize income, gain or loss for United States federal income tax purposes as a result of the deposit and related covenant defeasance and will be subject to United States federal income tax on the same amounts and in the same manner and at the same times as would have been the case if the deposit and related covenant defeasance had not occurred.

No Personal Liability of Directors, Officers, Employees or Stockholders

None of our past, present or future directors, officers, employees or stockholders, as such, will have any liability for any of our obligations under the debt securities or the indenture or for any claim based on, or in respect or by reason of, such obligations or their creation. By accepting a debt security, each holder waives and releases all such liability.

This waiver and release is part of the consideration for the issue of the debt securities. However, this waiver and release may not be effective to waive liabilities under U.S. federal securities laws, and it is the view of the SEC that such a waiver is against public policy.

Governing Law

The indenture and the debt securities, including any claim or controversy arising out of or relating to the indenture or the securities, will be governed by the laws of the State of New York.

GLOBAL SECURITIES

Book-Entry, Delivery and Form

Unless we indicate differently in a prospectus supplement, the securities initially will be issued in book-entry form and represented by one or more global notes or global securities, or, collectively, global securities. The global securities will be deposited with, or on behalf of, DTC, New York, New York, as depositary, and registered in the name of Cede & Co., the nominee of DTC. Unless and until it is exchanged for individual certificates evidencing securities under the limited circumstances described below, a global security may not be transferred except as a whole by the Depositary to its nominee or by the nominee to the Depositary, or by the Depositary or its nominee to a successor depositary or to a nominee of the successor depositary.

DTC has advised us that it is:

•a limited-purpose trust company organized under the New York Banking Law;

•a “banking organization” within the meaning of the New York Banking Law;

•a member of the Federal Reserve System;

•a “clearing corporation” within the meaning of the New York Uniform Commercial Code; and

•a “clearing agency” registered pursuant to the provisions of Section 17A of the Exchange Act.

DTC holds securities that its participants deposit with DTC. DTC also facilitates the settlement among its participants of securities transactions, such as transfers and pledges, in deposited securities through electronic computerized book-entry changes in participants’ accounts, thereby eliminating the need for physical movement of securities certificates. “Direct participants” in DTC include securities brokers and dealers, including underwriters, banks, trust companies, clearing corporations and other organizations. DTC is a wholly-owned subsidiary of The Depository Trust & Clearing Corporation, or DTCC. DTCC is the holding company for DTC, National Securities Clearing Corporation and Fixed Income Clearing Corporation, all of which are registered clearing agencies. DTCC is owned by the users of its regulated subsidiaries. Access to the DTC system is also available to others, which we sometimes refer to as indirect participants, that clear through or maintain a custodial relationship with a direct participant, either directly or indirectly. The rules applicable to DTC and its participants are on file with the SEC.

Purchases of securities under the DTC system must be made by or through direct participants, which will receive a credit for the securities on DTC’s records. The ownership interest of the actual purchaser of a security, which we sometimes refer to as a beneficial owner, is in turn recorded on the direct and indirect participants’ records. Beneficial owners of securities will not receive written confirmation from DTC of their purchases. However, beneficial owners are expected to receive written confirmations providing details of their transactions, as well as periodic statements of their holdings, from the direct or indirect participants through which they purchased securities. Transfers of ownership interests in global securities are to be accomplished by entries made on the books of participants acting on behalf of beneficial owners. Beneficial owners will not receive certificates representing their ownership interests in the global securities, except under the limited circumstances described below.

To facilitate subsequent transfers, all global securities deposited by direct participants with DTC will be registered in the name of DTC’s partnership nominee, Cede & Co., or such other name as may be requested by an authorized representative of DTC. The deposit of securities with DTC and their registration in the name of Cede & Co. or such other nominee will not change the beneficial ownership of the securities. DTC has no knowledge of the actual beneficial owners of the securities. DTC’s records reflect only the identity of the direct participants to whose accounts the securities are credited, which may or may not be the beneficial owners. The participants are responsible for keeping account of their holdings on behalf of their customers.

So long as the securities are in book-entry form, you will receive payments and may transfer securities only through the facilities of the Depositary and its direct and indirect participants. We will maintain an office or agency in the location specified in the prospectus supplement for the applicable securities, where notices and demands in respect of the securities and the indenture may be delivered to us and where certificated securities may be surrendered for payment, registration of transfer or exchange.

Conveyance of notices and other communications by DTC to direct participants, by direct participants to indirect participants and by direct participants and indirect participants to beneficial owners will be governed by arrangements among them, subject to any legal requirements in effect from time to time.

Redemption notices will be sent to DTC. If less than all of the securities of a particular series are being redeemed, DTC’s practice is to determine by lot the amount of the interest of each direct participant in the securities of such series to be redeemed.

Neither DTC nor Cede & Co. (or such other DTC nominee) will consent or vote with respect to the securities. Under its usual procedures, DTC will mail an omnibus proxy to us as soon as possible after the record date. The omnibus proxy assigns the consenting or voting rights of Cede & Co. to those direct participants to whose accounts the securities of such series are credited on the record date, identified in a listing attached to the omnibus proxy.

So long as securities are in book-entry form, we will make payments on those securities to the Depositary or its nominee, as the registered owner of such securities, by wire transfer of immediately available funds. If securities are issued in definitive certificated form under the limited circumstances described below and unless if otherwise provided in the description of the applicable securities herein or in the applicable prospectus supplement, we will have the option of making payments by check mailed to the addresses of the persons entitled to payment or by wire transfer to bank accounts in the United States designated in writing to the applicable trustee or other designated party at least 15 days before the applicable payment date by the persons entitled to payment, unless a shorter period is satisfactory to the applicable trustee or other designated party.

Redemption proceeds, distributions and dividend payments on the securities will be made to Cede & Co., or such other nominee as may be requested by an authorized representative of DTC. DTC’s practice is to credit direct participants’ accounts upon DTC’s receipt of funds and corresponding detail information from us on the payment date in accordance with their respective holdings shown on DTC records. Payments by participants to beneficial owners will be governed by standing instructions and customary practices, as is the case with securities held for the account of customers in bearer form or registered in “street name.” Those payments will be the responsibility of participants and not of DTC or us, subject to any statutory or regulatory requirements in effect from time to time. Payment of redemption proceeds, distributions and dividend payments to Cede & Co., or such other nominee as may be requested by an authorized representative of DTC, is our responsibility, disbursement of payments to direct participants is the responsibility of DTC, and disbursement of payments to the beneficial owners is the responsibility of direct and indirect participants.

Except under the limited circumstances described below, purchasers of securities will not be entitled to have securities registered in their names and will not receive physical delivery of securities. Accordingly, each beneficial owner must rely on the procedures of DTC and its participants to exercise any rights under the securities and the indenture.

The laws of some jurisdictions may require that some purchasers of securities take physical delivery of securities in definitive form. Those laws may impair the ability to transfer or pledge beneficial interests in securities.

DTC may discontinue providing its services as securities depositary with respect to the securities at any time by giving reasonable notice to us. Under such circumstances, in the event that a successor depositary is not obtained, securities certificates are required to be printed and delivered.

As noted above, beneficial owners of a particular series of securities generally will not receive certificates representing their ownership interests in those securities. However, if:

•DTC notifies us that it is unwilling or unable to continue as a depositary for the global security or securities representing such series of securities or if DTC ceases to be a clearing agency registered under the Exchange Act at a time when it is required to be registered and a successor depositary is not appointed within 90 days of the notification to us or of our becoming aware of DTC’s ceasing to be so registered, as the case may be;

•we determine, in our sole discretion, not to have such securities represented by one or more global securities; or

•an Event of Default has occurred and is continuing with respect to such series of securities,

we will prepare and deliver certificates for such securities in exchange for beneficial interests in the global securities. Any beneficial interest in a global security that is exchangeable under the circumstances described in the preceding sentence will be exchangeable for securities in definitive certificated form registered in the names that the Depositary directs. It is

expected that these directions will be based upon directions received by the Depositary from its participants with respect to ownership of beneficial interests in the global securities.

We have obtained the information in this section and elsewhere in this prospectus concerning DTC and DTC’s book-entry system from sources that are believed to be reliable, but we take no responsibility for the accuracy of this information.

PLAN OF DISTRIBUTION

We may sell the securities covered by this prospectus from time to time pursuant to underwritten public offerings, negotiated transactions, block trades or a combination of these methods or through underwriters or dealers, through agents and/or directly to one or more purchasers. The shares of common stock may be distributed from time to time in one or more transactions:

•at a fixed price or prices, which may be changed;

•at market prices prevailing at the time of sale;

•at prices related to such prevailing market prices; or

•at negotiated prices.

Each time that we sell securities covered by this prospectus, we will provide a prospectus supplement or supplements that will describe the method of distribution and set forth the terms and conditions of the offering of such securities, including the offering price of the securities and the proceeds to us .

Offers to purchase the securities being offered by this prospectus may be solicited directly. Agents may also be designated to solicit offers to purchase the securities from time to time. Any agent involved in the offer or sale of our securities will be identified in a prospectus supplement.

If a dealer is utilized in the sale of the securities being offered by this prospectus, the securities will be sold to the dealer, as principal. The dealer may then resell the securities to the public at varying prices to be determined by the dealer at the time of resale.

If an underwriter is utilized in the sale of the securities being offered by this prospectus, an underwriting agreement will be executed with the underwriter at the time of sale and the name of any underwriter will be provided in the prospectus supplement that the underwriter will use to make resales of the securities to the public. In connection with the sale of the securities, we, or the purchasers of securities for whom the underwriter may act as agent, may compensate the underwriter in the form of underwriting discounts or commissions. The underwriter may sell the securities to or through dealers, and those dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters and/or commissions from the purchasers for which they may act as agent. Unless otherwise indicated in a prospectus supplement, an agent will be acting on a best efforts basis and a dealer will purchase securities as a principal, and may then resell the securities at varying prices to be determined by the dealer.

Any compensation paid to underwriters, dealers or agents in connection with the offering of the securities, and any discounts, concessions or commissions allowed by underwriters to participating dealers will be provided in the applicable prospectus supplement. Underwriters, dealers and agents participating in the distribution of the securities may be deemed to be underwriters within the meaning of the Securities Act, and any discounts and commissions received by them and any profit realized by them on resale of the securities may be deemed to be underwriting discounts and commissions. We may enter into agreements to indemnify underwriters, dealers and agents against civil liabilities, including liabilities under the Securities Act, or to contribute to payments they may be required to make in respect thereof and to reimburse those persons for certain expenses.

Any common stock will be listed on the NASDAQ Global Market, but any other securities may or may not be listed on a national securities exchange. To facilitate the offering of securities, certain persons participating in the offering may engage in transactions that stabilize, maintain or otherwise affect the price of the securities. This may include over-allotments or short sales of the securities, which involve the sale by persons participating in the offering of more securities than were sold to them. In these circumstances, these persons would cover such over-allotments or short positions by making purchases in the open market or by exercising their over-allotment option, if any. In addition, these persons may stabilize or maintain the price of the securities by bidding for or purchasing securities in the open market or by imposing penalty bids, whereby selling concessions allowed to dealers participating in the offering may be reclaimed if securities sold by them are repurchased in connection with stabilization transactions. The effect of these transactions may be to stabilize or maintain the market price of the securities at a level above that which might otherwise prevail in the open market. These transactions may be discontinued at any time.

We may engage in at the market offerings into an existing trading market in accordance with Rule 415(a)(4) under the Securities Act. In addition, we may enter into derivative transactions with third parties, or sell securities not covered by this prospectus to third parties in privately negotiated transactions. If the applicable prospectus supplement so indicates, in

connection with those derivatives, the third parties may sell securities covered by this prospectus and the applicable prospectus supplement, including in short sale transactions. If so, the third party may use securities pledged by us or borrowed from us or others to settle those sales or to close out any related open borrowings of stock, and may use securities received from us in settlement of those derivatives to close out any related open borrowings of stock. The third party in such sale transactions will be an underwriter and, if not identified in this prospectus, will be named in the applicable prospectus supplement (or a post-effective amendment). In addition, we may otherwise loan or pledge securities to a financial institution or other third party that in turn may sell the securities short using this prospectus and an applicable prospectus supplement. Such financial institution or other third party may transfer its economic short position to investors in our securities or in connection with a concurrent offering of other securities.

The specific terms of any lock-up provisions in respect of any given offering will be described in the applicable prospectus supplement.

The underwriters, dealers and agents may engage in transactions with us, or perform services for us, in the ordinary course of business for which they receive compensation.

WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly and current reports, proxy statements and other information with the SEC. The SEC maintains a website that contains reports, proxy and information statements and other information about issuers, such as us, who file electronically with the SEC. The address of that website is http://www.sec.gov.

This prospectus and any prospectus supplement are part of a registration statement that we filed with the SEC and do not contain all of the information in the registration statement. The full registration statement may be obtained from the SEC or us, as provided below. Other documents establishing the terms of the offered securities are or may be filed as exhibits to the registration statement. Statements in this prospectus or any prospectus supplement about these documents are summaries and each statement is qualified in all respects by reference to the document to which it refers. You should refer to the actual documents for a more complete description of the relevant matters. You may obtain a copy of the registration statement through the SEC’s website, as provided above.

We maintain a website at www.gwresources.com. Information contained in or accessible through our website does not constitute a part of this prospectus.

INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

The SEC’s rules allow us to “incorporate by reference” information into this prospectus, which means that we can disclose important information to you by referring you to another document filed separately with the SEC. The information incorporated by reference is deemed to be part of this prospectus, and subsequent information that we file with the SEC will automatically update and supersede that information. Any statement contained in a previously filed document incorporated by reference will be deemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained in this prospectus modifies or replaces that statement.

We incorporate by reference our documents listed below and any future filings made by us with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), in this prospectus, between the date of this prospectus and the termination of the offering of the securities described in this prospectus. We are not, however, incorporating by reference any documents or portions thereof, whether specifically listed below or filed in the future, that are not deemed “filed” with the SEC.

This prospectus and any accompanying prospectus supplement incorporate by reference the documents set forth below that have previously been filed with the SEC:

•Our Annual Report on Form 10-K for the year ended December 31, 2019, filed with the SEC on March 5, 2020.

•Our Definitive Proxy Statement on Schedule 14A, filed with the SEC on March 27, 2020 (solely to the extent specifically incorporated by reference into our Annual Report on Form 10-K for the year ended December 31, 2019).

•Our Quarterly Reports on Form 10-Q for the quarters ended March 31, 2020 and June 30, 2020, filed with the SEC on May 7, 2020 and August 6, 2020, respectively.

•Our Current Reports on Form 8-K, filed with the SEC on January 21, 2020, January 30, 2020, May 6, 2020 (the first report filed on such date pursuant to Items 1.01, 1.02, 2.03, and 9.01 of Form 8-K), May 8, 2020, July 28, 2020 and September 2, 2020 (with respect to Item 8.01 only).

All reports and other documents we subsequently file pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act prior to the termination of this offering, including all such documents we may file with the SEC after the date of the initial registration statement and prior to the effectiveness of the registration statement, but excluding any information furnished to, rather than filed with, the SEC, will also be incorporated by reference into this prospectus and deemed to be part of this prospectus from the date of the filing of such reports and documents.

You may request a free copy of any of the documents incorporated by reference in this prospectus by writing or telephoning us at:

Global Water Resources, Inc.
21410 N. 19th Avenue #220
Phoenix, Arizona 85027
(480) 360-7775
Attention: Corporate Secretary

You may also access the documents incorporated by reference in this prospectus through our website at www.gwresources.com.

LEGAL MATTERS

Certain legal matters with respect to the legality of the securities offered by this prospectus will be passed on for us by Snell & Wilmer L.L.P., Phoenix, Arizona.

EXPERTS

The financial statements incorporated in this Prospectus by reference from the Company’s Annual Report on Form 10-K have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their report, which is incorporated herein by reference. Such financial statements have been so incorporated in reliance upon the report of such firm given upon their authority as experts in accounting and auditing.

1,000,000 Shares

Common Stock


PROSPECTUS SUPPLEMENT

Roth Capital Partners

July 28, 2022

Global Water Resources (GWRS) 424B5Prospectus supplement for primary offering