of a Current Report on Form 8-K filed with the Securities and Exchange Commission on August 24, 2026 (the “Prior 8-K”), Nutex Health Inc. (the “Company”) became aware of unauthorized activity involving data stored on its computer network. As disclosed in the Prior 8-K, the Company engaged an independent third-party cybersecurity response team and forensic experts, activated a cybersecurity response plan, implemented containment measures and notified law enforcement. Based on the current statu…

Other Events. Nutex Health Inc. (the “Company”) recently learned of unauthorized activity involving data stored on its computer network. As a result, the Company has engaged an independent third-party cybersecurity response team and forensic experts, activated a cybersecurity response plan, implemented containment measures and notified law enforcement. Based on preliminary findings from the Company’s ongoing investigation, the Company believes that certain information maintained on the Compan…

OF THIS CURRENT REPORT, INCLUDING EXHIBIT 99.1 ATTACHED HERETO, SHALL NOT BE DEEMED “FILED” FOR THE PURPOSES OF SECTION 18 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED, NOR SHALL IT BE DEEMED INCORPORATED BY REFERENCE INTO ANY REGISTRATION STATEMENT OR OTHER FILING PURSUANT TO THE SECURITIES ACT OF 1933, AS AMENDED, EXCEPT AS OTHERWISE EXPRESSLY STATED IN SUCH FILING. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant caused this report to be s…

Entry into a Material Definitive Agreement. Effective June 30, 2026, Nutex Health Inc., a Delaware corporation (the “Company”), on July 15, 2026, entered into a First Amendment (the “Amendment”) to that certain Payment Dispute Resolution Services Agreement, dated as of May 1, 2024 (the “Agreement”), by and between the Company and HaloMD, L.L.C., a Delaware limited liability company (“HaloMD”). The services provided under the Agreement are subject to the regulatory framework established by the…

OF THIS CURRENT REPORT, INCLUDING EXHIBIT 99.1 ATTACHED HERETO, SHALL NOT BE DEEMED “FILED” FOR THE PURPOSES OF SECTION 18 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED, NOR SHALL IT BE DEEMED INCORPORATED BY REFERENCE INTO ANY REGISTRATION STATEMENT OR OTHER FILING PURSUANT TO THE SECURITIES ACT OF 1933, AS AMENDED, EXCEPT AS OTHERWISE EXPRESSLY STATED IN SUCH FILING. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant caused this report to be s…

OF THIS CURRENT REPORT, INCLUDING EXHIBIT 99.1 ATTACHED HERETO, SHALL NOT BE DEEMED “FILED” FOR THE PURPOSES OF SECTION 18 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED, NOR SHALL IT BE DEEMED INCORPORATED BY REFERENCE INTO ANY REGISTRATION STATEMENT OR OTHER FILING PURSUANT TO THE SECURITIES ACT OF 1933, AS AMENDED, EXCEPT AS OTHERWISE EXPRESSLY STATED IN SUCH FILING SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant caused this report to be si…

OF THIS CURRENT REPORT, INCLUDING EXHIBIT 99.1 ATTACHED HERETO, SHALL NOT BE DEEMED “FILED” FOR THE PURPOSES OF SECTION 18 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED, NOR SHALL IT BE DEEMED INCORPORATED BY REFERENCE INTO ANY REGISTRATION STATEMENT OR OTHER FILING PURSUANT TO THE SECURITIES ACT OF 1933, AS AMENDED, EXCEPT AS OTHERWISE EXPRESSLY STATED IN SUCH FILING SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant caused this report to be si…

OF THIS CURRENT REPORT, INCLUDING EXHIBIT 99.1 ATTACHED HERETO, SHALL NOT BE DEEMED “FILED” FOR THE PURPOSES OF SECTION 18 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED, NOR SHALL IT BE DEEMED INCORPORATED BY REFERENCE INTO ANY REGISTRATION STATEMENT OR OTHER FILING PURSUANT TO THE SECURITIES ACT OF 1933, AS AMENDED, EXCEPT AS OTHERWISE EXPRESSLY STATED IN SUCH FILING SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant caused this report to be si…

OF THIS CURRENT REPORT, INCLUDING EXHIBIT 99.1 ATTACHED HERETO, SHALL NOT BE DEEMED “FILED” FOR THE PURPOSES OF SECTION 18 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED, NOR SHALL IT BE DEEMED INCORPORATED BY REFERENCE INTO ANY REGISTRATION STATEMENT OR OTHER FILING PURSUANT TO THE SECURITIES ACT OF 1933, AS AMENDED, EXCEPT AS OTHERWISE EXPRESSLY STATED IN SUCH FILING SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant caused this report to be si…

OF THIS CURRENT REPORT, INCLUDING EXHIBIT 99.1 ATTACHED HERETO, SHALL NOT BE DEEMED “FILED” FOR THE PURPOSES OF SECTION 18 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED, NOR SHALL IT BE DEEMED INCORPORATED BY REFERENCE INTO ANY REGISTRATION STATEMENT OR OTHER FILING PURSUANT TO THE SECURITIES ACT OF 1933, AS AMENDED, EXCEPT AS OTHERWISE EXPRESSLY STATED IN SUCH FILING SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant caused this report to be si…

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing. As previously disclosed, on August 20, 2025, the Company received a notice (the “Notice”) from the Listing Qualifications Department of The Nasdaq Stock Market LLC (“Nasdaq”) notifying the Company that due to the Company’s failure to timely file its Quarterly Report on Form 10-Q for the period ended June 30, 2025 (the “June 30, 2025 Form 10-Q”) with the Securities and Exchange Commission (the…

Results of Operations and Financial Condition. On October 20, 2025, Nutex Health Inc. (the “Company”) issued a press release containing certain anticipated preliminary financial metrics with respect to the period ended September 30, 2025 and other information. The press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information furnished in this

Chief Operating Officer — Wesley Bamburg: Appointment of a new Chief Operating Officer to replace the previous one.

Other Events. On September 8, 2025, a purported stockholder filed a derivative action (the “Derivative Action”) on behalf of Nutex Health Inc. (the “Company”) in the United States District Court for the Southern District of Texas, captioned Juan Camilo Jimenez, derivatively on behalf of Nutex Health Inc ., Case No. 4:25-cv-04253, naming as defendants the Company’s Chief Executive Officer, its Chief Financial Officer and its President, along with the current members of its Board of Directors (…

Lead Independent Director — Michael L. Reed: Mr. Michael L. Reed was appointed as the Lead Independent Director of the Board.

Other Events. On August 22, 2025, a putative securities class action complaint was filed in the United States District Court for the Southern District of Texas in Harris County ( Anjana Bhagavan v. Nutex Health Inc ., Case No. 4:25-cv-03999). The complaint named Nutex Health Inc. (the “Company”), our Chairman of the Board and Chief Executive Officer, our Chief Financial Officer and our President and Director as defendants and asserted claims under Sections 10(b) and 20(a) of the Securities Ex…

Non-Reliance on Previously Issued Financial Statement or Related Audit Report or Completed Interim Review. On August 20, 2025, the Audit Committee of the Board of Directors of Nutex Health Inc. (“Nutex Health” or “the Company”), after consultation with the Chief Financial Officer, concluded that the Company’s previously issued (i) unaudited condensed consolidated financial statements as of and for the three months ended March 31, 2025 contained in the Form 10-Q for the period ended March 31,…

Other Events The Company provides the following updated information with respect to the current federal arbitration process, to respond to a recent short seller attack and litigation matters: Arbitration process. Federal Rules Applicable to Out-of-Network Billing Congress enacted the No Surprises Act (“NSA”) effective January 1, 2022, to protect patients from surprise medical bills incurred when they receive emergency medical services from out-of-network healthcare providers. The NSA achieves…

and Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing. On August 20, 2025, the Company received a notice (the “Notice”) from the Listing Qualifications Department of The Nasdaq Stock Market LLC (“Nasdaq”) notifying the Company that due to the Company’s failure to timely file its Quarterly Report on Form 10-Q for the period ended June 30, 2025 (the “June 30, 2025 Form 10-Q”), with the Securities and Exchange Commission (the “SEC”), the Company is n…

and Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Chief Operating Officer — Joshua DeTillio: Joshua DeTillio resigned to take a CEO position at another company.

Changes in Registrant’s Certifying Accountant. The Audit Committee of the Board of Directors (the “Committee”) of Nutex Health Inc. (the “Company”) concluded a competitive selection process to determine the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2025. (a) Dismissal of Independent Registered Public Accounting Firm On May 15, 2025, the Committee notified CBIZ CPAs P.C. (“CBIZ”) of its dismissal as the Company’s independent registered publ…

OF THIS CURRENT REPORT, INCLUDING EXHIBIT 99.1 ATTACHED HERETO, SHALL NOT BE DEEMED “FILED” FOR THE PURPOSES OF SECTION 18 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED, NOR SHALL IT BE DEEMED INCORPORATED BY REFERENCE INTO ANY REGISTRATION STATEMENT OR OTHER FILING PURSUANT TO THE SECURITIES ACT OF 1933, AS AMENDED, EXCEPT AS OTHERWISE EXPRESSLY STATED IN SUCH FILING SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant caused this report to be si…

Changes in Registrant’s Certifying Accountant. (a) Resignation of Independent Registered Public Accounting Firm On November 1, 2024, CBIZ CPAs P.C. (“CBIZ”) acquired the attest business of Marcum LLP (“Marcum”). On April 25, 2025, Nutex Health Inc. (the “Company”) was notified by Marcum that Marcum resigned as the Company’s independent registered public accounting firm as a result of such acquisition, and the Company’s Audit Committee approved the resignation. ​ The audit report of Marcum on…