脂鲤技术美股招股说明书(2026-06-04版)

TETRA Technologies, Inc. Common Stock We are offering 10,810,811 shares of our common stock, par value $0.01 per share (“common stock”). Unless otherwise stated or the contextotherwise indicates, all references to “TETRA,” “TETRA Technologies,” “registrant,” “ourcompany,” “we,” “our,” “us” or similar references refer to Our common stock is listed on The New York Stock Exchange under the symbol “TTI.” The last reported sales price of our common stock on TheNew York Stock Exchange on June1, 2026 was $10.36 per share. Investing in our common stock involves risks. See “RiskFactors” on pageS-12. Per ShareTotalPrice to Public$9.25$100,000,001.75Underwriting Discounts and Commissions(1)$0.50875$5,500,000.10Proceeds to TETRA Technologies, Inc.(2)$8.74125$94,500,001.65 (1)We refer you to “Underwriting” beginning on page S-25 of this prospectus supplement for additional information regarding underwritingcompensation. We have granted the underwriters the option to purchase up to an additional 1,621,621 shares of common stock solely to cover anyover-allotments on the same terms and conditions set forth above within 30days from the date of this prospectus supplement. Delivery of the shares of common stock will be made on or about June4, 2026. Neither the U.S. Securities and Exchange Commission nor any state securities commission has approved ordisapproved of these securitiesor determined if this prospectus supplement is truthful or complete. Any representation to the contrary is a criminal offense. Lead Book-Running Manager J.P. Morgan Book-Running Manager Jefferies Co-Managers Berenberg NorthlandCapitalMarkets CJSSecurities Table of Contents TABLE OF CONTENTS ABOUT THIS PROSPECTUS SUPPLEMENTTRADEMARKS, SERVICE MARKS AND TRADE NAMESCAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTSSUMMARYTHE OFFERINGSUMMARY HISTORICAL CONSOLIDATED FINANCIAL DATARISK FACTORSUSE OF PROCEEDSDIVIDEND POLICYCAPITALIZATIONCERTAIN ERISA CONSIDERATIONSMATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS FOR NON-U.S. HOLDERSUNDERWRITINGLEGAL MATTERSEXPERTSWHERE YOU CAN FIND MORE INFORMATIONINCORPORATION BY REFERENCE ABOUT THIS PROSPECTUSINCORPORATION BY REFERENCE WHERE YOU CAN FIND MORE INFORMATIONCAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTSSUMMARYRISK FACTORSUSE OF PROCEEDSDESCRIPTION OF CAPITAL STOCKDESCRIPTION OF DEBT SECURITIESDESCRIPTION OF WARRANTSDESCRIPTION OF RIGHTSDESCRIPTION OF UNITSPLAN OF DISTRIBUTIONLEGAL MATTERSEXPERTSS-i Table of Contents ABOUT THIS PROSPECTUS SUPPLEMENT This document is in two parts. The first part is this prospectus supplement, which describes the specific terms of this offering. The second partcontains an accompanying primary base prospectus relating to sales of shares of common stock and other securities by TETRA Technologies, Inc. andgives more general information, some of which may not apply to this offering. Generally, when we refer to the prospectus, we are referring to thisprospectus supplement and the accompanying base prospectus combined. Unless otherwise indicated, capitalized terms used but not defined herein havethe meaning assigned to them in the registration statement of which this prospectus supplement forms a part. You should read the entire prospectussupplement, as well as the accompanying base prospectus and the documents incorporated by reference that are described under “Incorporation by You should rely only on the information included or incorporated by reference in this prospectus supplement and the accompanying baseprospectus prepared by us or on behalf of us or to which we have referred you. Neither we, the underwriters nor any of our or their representatives haveauthorized any other person to provide you with information different from that included or incorporated by reference in this prospectus supplement andthe accompanying base prospectus. If anyone provides you with different or inconsistent information, you should not rely on it. Neither we nor theunderwriters are making an offer to sell these securities in any jurisdiction where an offer or sale is not permitted. The information in this prospectus This prospectus supplement contains forward-looking statements that are subject to a number of risks and uncertainties, many of which arebeyond our control. Please read the sections entitled “Risk Factors” and “Cautionary Statement Regarding Forward-Looking Statements.” TRADEMARKS, SERVICE MARKS AND TRADE NAMES We own or have rights to various trademarks, service marks and trade names, including those mentioned in this prospectus supplement, that weuse in connection with the operation of our business. This prospectus supplement may also contain trademarks, service marks and trade names of thirdparties, which are the property of their respective owners. Our use or display of third parties’ trademarks, service marks, trade names or products in thisprospectus supplement is not intended to imply, and such use or display should not be construed to