{"url_path":"/sec/rntx/10-q/2026/item-4","section_key":"item-4","section_title":"Item 4 Controls and Procedures.","topic":"sec","document":{"doc_type":"10-Q","doc_date":"2026-05-15","source_url":"https://www.sec.gov/Archives/edgar/data/1420565/0001193125-26-225352-index.html","accession_number":"0001193125-26-225352","cik":"0001420565","ticker":"RNTX","issuer_name":"Rein Therapeutics, Inc.","edgar_url":"https://www.sec.gov/Archives/edgar/data/1420565/0001193125-26-225352-index.html","primary_entity_key":"0001420565","primary_entity_name":"Rein Therapeutics, Inc."},"word_count":915,"has_tables":true,"body_markdown":"Item 4. Controls and Procedures.\n\nLimitations on Effectiveness of Controls and Procedures\n\nThe term “disclosure controls and procedures”, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, refers to controls and procedures that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure.\n\nIn designing and evaluating our disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints and that management is required to apply judgment in evaluating the benefits of possible controls and procedures relative to their costs.\n\n29\n\n \n\nEvaluation of Disclosure Controls and Procedures\n\nOur management, with the participation of our Chief Executive Officer and our interim Chief Financial Officer, evaluated, as of the end of the period covered by this Quarterly Report, the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act). Based on that evaluation, our Chief Executive Officer and our interim Chief Financial Officer concluded that our disclosure controls and procedures were not effective at the reasonable assurance level as of March 31, 2026, because of the identified material weaknesses in our internal control over financial reporting described below.\n\nMaterial Weaknesses\n\nWe identified material weaknesses in our internal control over financial reporting. A material weakness is a deficiency, or combination of deficiencies, in internal control over financial reporting such that there is a possibility that a material misstatement of our financial statements will not be prevented or detected on a timely basis. We identified the following material weaknesses in internal control over financial reporting: (i) lack of sufficient accounting and supervisory personnel who have the appropriate level of technical accounting experience and training, and (ii) lack of adequate procedures and controls to ensure that accurate financial statements could have been prepared and reviewed on a timely basis for annual reporting purposes. These material weaknesses continued to exist as of March 31, 2026 and December 31, 2025.\n\nManagement’s Plan to Remediate Material Weaknesses\n\nThe below are actions that we have taken to date to remediate the above-mentioned material weaknesses:\n\n•\nEnhanced the execution of our risk assessment activities by evaluating whether the design of our internal controls appropriately addresses changes in the business (including changes to people, processes and systems) that could impact our system of internal controls.\n\n•\nCompleted the integration of the acquired systems from the Lung Acquisition into our financial and accounting systems to allow for systematic segregation of duties, and to enhance the accurate and timely preparation and review of financial statements and supporting schedules.\n\n•\nEngaged a third-party to assist in assessing the design and implementation of controls and develop remediation plans for identified control gaps related to our timely preparation and review of account reconciliations, financial statements and supporting schedules.\n\n•\nReported regularly to the audit committee on the progress and results of the remediation plan, including the identification, status and resolution of internal control deficiencies.\n\n•\nContinued to reassess staffing and add additional resources, as required, with the requisite technical accounting experience and training, to further allow for segregation of duties and to support our system of internal control.\n\nIn addition to implementing and executing the aforementioned activities, the following activities are expected to be completed in fiscal year 2026:\n\n•\nImplement remediation plans for identified control design and implementation gaps.\n\n•\nContinue to act upon the enhancements to our internal controls that we implemented in 2025.\n\n•\nPerform testing of operating effectiveness of identified controls over financial reporting including IT General Controls.\n\n•\nAs needed, we will also supplement our internal resources with additional third-party resources to enhance our corporate oversight and monitoring over process-level controls and structures to ensure that there is appropriate assignment of authority, responsibility, and accountability.\n\nThe material weaknesses will not be considered remediated until management completes the design and implementation of the measures described above and the controls operate for a sufficient period of time and management has concluded, through testing, that these controls are effective. Management believes that the remediation measures described above will be implemented in a manner such that the controls can be tested, and the identified material weaknesses can be determined to be remediated, however, no assurance can be made that such remediation will occur or that additional material weaknesses will not be identified.\n\nChanges in Internal Control Over Financial Reporting\n\nExcept for the above noted and previously reported material weaknesses and the related ongoing remediation activities described above, no change in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) has occurred during the three months ended March 31, 2026 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.\n\n30\n\n \n\nPART II—OTHER INFORMATION"}