Change in Certifying Accountants Form 8 K

Item 4.01

Changes in Registrant's Certifying Accountant.

As previously reported, on September 6, 2024, Innovex International, Inc., a Delaware corporation formerly named Dril-Quip, Inc. (the "Company"), completed its business combination with Innovex Downhole Solutions, Inc., a Delaware corporation ("Pre-MergerInnovex"), pursuant to that certain Agreement and Plan of Merger, dated as of March 18, 2024, as amended by the First Amendment to the Agreement and Plan of Merger, dated as of June 12, 2024 (the "Merger Agreement"), by and among the Company, Pre-MergerInnovex, Ironman Merger Sub, Inc., a Delaware corporation and a direct wholly owned subsidiary of the Company, and DQ Merger Sub, LLC, a Delaware limited liability company and a direct wholly owned subsidiary of the Company (the "Merger"). In connection with the completion of the Merger, the Company changed its name from "Dril-Quip, Inc." to "Innovex International, Inc."

For accounting purposes, the Merger was treated as a reverse acquisition and, as such, the historical financial statements of the accounting acquirer, Pre-MergerInnovex, which have been audited by Grant Thornton LLP ("GT"), become the historical consolidated financial statements of the Company. In a reverse acquisition, a change of accountants presumptively occurs unless the same accountant audited the pre-transactionfinancial statements of both the legal acquirer and the accounting acquirer.

Dismissal of Independent Registered Public Accounting Firm

GT served as the independent registered public accounting firm of Pre-MergerInnovex prior to the completion of the Merger. On September 27, 2024, the Audit Committee of the board of directors of the Company dismissed GT as the Company's independent registered public accounting firm.

GT's reports on Pre-MergerInnovex's consolidated financial statements as of and for the fiscal years ended December 31, 2023 and December 31, 2022 did not contain an adverse opinion or disclaimer of opinion and were not qualified or modified as to uncertainty, audit scope or accounting principles.

During the fiscal years ended December 31, 2023 and December 31, 2022 and the subsequent interim period through September 27, 2024, (i) there were no disagreements within the meaning of Item 304(a)(1)(iv) of Regulation S-K,between Pre-MergerInnovex and GT on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedure, any of which that, if not resolved to GT's satisfaction, would have caused GT to make reference to the subject matter of any such disagreement in connection with its reports for such years and interim period, and (ii) there were no reportable events within the meaning of Item 304(a)(1)(v) of Regulation S-K,except for the material weakness in the internal controls over financial reporting of Pre-MergerInnovex disclosed in the Company's Registration Statement on Form S-4that was declared effective by the Securities and Exchange Commission on August 6, 2024.

The Company provided GT with a copy of the above disclosures and requested that GT furnish a letter addressed to the Securities and Exchange Commission stating whether it agrees with the statements made herein. A copy of GT's letter dated October 1, 2024 is filed as Exhibit 16.1 to this Current Report on Form 8-K.

Appointment of the Incoming Independent Registered Public Accounting Firm

On September 27, 2024, the Audit Committee of the board of directors of the Company approved the continuation of PricewaterhouseCoopers LLP ("PwC") as the Company's independent registered public accounting firm.

During the fiscal years ended December 31, 2023 and December 31, 2022 and the subsequent interim period through September 27, 2024, neither the Company nor anyone on the Company's behalf consulted with PwC regarding (i) the application of accounting principles to a specified transaction, either completed or proposed; or the type of audit opinion that might be rendered on the Company's financial statements, and no written report or oral advice was provided to the Company by PwC that PwC concluded was an important factor considered by the Company in reaching a decision as to the accounting, auditing or financial reporting issue; or (ii) any matter that was either the subject of a disagreement, as that term is described in Item 304(a)(1)(iv) of Regulation S-K, ora reportable event, as that term is defined in Item 304(a)(1)(v) of Regulation S-K,other than PwC's role as Dril-Quip, Inc.'s independent registered public accountant, where a material weakness in Dril-Quip, Inc.'s internal control over financial reporting was

identified relating to a classification error associated with an inventory write-down, as disclosed in its amended Annual Report on Form 10-K/Afor the fiscal year ended December 31, 2023 filed with the Securities and Exchange Commission on July 8, 2024.