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QS Energy, Inc. (QSEP): material weakness open 1,763 days

By , Ctrl Worx™. Built from its own SEC filings. How the Clock works.

QS Energy, Inc. reported ineffective internal control over financial reporting because of a material weakness in 5 filings since Mar 31, 2022. It stated one or more material weaknesses in 11 more SEC filings that gave no conclusion on whether that control is effective. The latest was its 10-Q for the period ended Jun 30, 2026.

Ctrl Worx Watch List™ status

On the Clock
4.8 yearsopen since Dec 31, 2021
10-Q, Aug 14, 2026latest filing that reports the weakness. Read it on SEC EDGAR
#416 of 1,250on the Clock by time open, tied with 41 other companies that share its start date. See the Clock

Still filing, and no annual report of its own says the weakness is fixed.

Checked against SEC EDGAR: Oct 29, 2026 · Entry #10370

Filings with a weakness16
First in our dataMar 31, 2022
AuditorWeinberg & Company, P.A.

Causes the company named

Segregation of duties · 16Accounting expertise and resources · 16

What the latest filing says

Based on this evaluation, the Company’s Chief Executive and Financial Officer concluded that the Company’s disclosure controls and procedures were not effective as of June 30, 2026. As of June 30, 2026, management’s assessment identified the material weaknesses in the Company’s internal control over financial reporting: We continue to have a material weakness in our internal control over financial reporting as disclosed in our 2025 Form 10-K, filed with the SEC on March 31, 2026, in that the Company has (i) inadequate segregation of duties consistent with control objectives; and (ii) the Company has an insufficient number of personnel with an appropriate level of U.S. GAAP knowledge and experience and ongoing training in the application of U.S. GAAP and SEC disclosure requirements commensurate with the Company’s financial reporting requirements. (a) Changes in Internal Control over Financial Reporting No change in the Company's internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) occurred during the six-month period [...]

From the controls section of the 10-Q filed Aug 14, 2026. Read the full filing on SEC EDGAR.

Company response: QS Energy, Inc. can send a statement or a link to its remediation update to russell@ctrlworx.com. We post it here, unedited and dated.

Filings

FiledFormPeriodControlsCausesFiling
Aug 14, 202610-QJun 30, 2026Material weakness stated, no ICFR conclusionSegregation of duties; Accounting expertise and resourcesEDGAR
May 15, 202610-QMar 31, 2026Material weakness stated, no ICFR conclusionSegregation of duties; Accounting expertise and resourcesEDGAR
Mar 31, 202610-KDec 31, 2025Not effectiveSegregation of duties; Accounting expertise and resourcesEDGAR
Nov 14, 202510-QSep 30, 2025Material weakness stated, no ICFR conclusionSegregation of duties; Accounting expertise and resourcesEDGAR
Aug 14, 202510-QJun 30, 2025Material weakness stated, no ICFR conclusionSegregation of duties; Accounting expertise and resourcesEDGAR
May 14, 202510-QMar 31, 2025Material weakness stated, no ICFR conclusionSegregation of duties; Accounting expertise and resourcesEDGAR
Mar 28, 202510-KDec 31, 2024Not effectiveSegregation of duties; Accounting expertise and resourcesEDGAR
Nov 14, 202410-QSep 30, 2024Material weakness stated, no ICFR conclusionSegregation of duties; Accounting expertise and resourcesEDGAR
Aug 9, 202410-QJun 30, 2024Material weakness stated, no ICFR conclusionSegregation of duties; Accounting expertise and resourcesEDGAR
May 15, 202410-QMar 31, 2024Material weakness stated, no ICFR conclusionSegregation of duties; Accounting expertise and resourcesEDGAR
Apr 9, 202410-KDec 31, 2023Not effectiveSegregation of duties; Accounting expertise and resourcesEDGAR
Nov 14, 202310-QSep 30, 2023Material weakness stated, no ICFR conclusionSegregation of duties; Accounting expertise and resourcesEDGAR
Aug 14, 202310-QJun 30, 2023Material weakness stated, no ICFR conclusionSegregation of duties; Accounting expertise and resourcesEDGAR
May 12, 202310-QMar 31, 2023Material weakness stated, no ICFR conclusionSegregation of duties; Accounting expertise and resourcesEDGAR
Mar 30, 202310-KDec 31, 2022Not effectiveSegregation of duties; Accounting expertise and resourcesEDGAR
Mar 31, 202210-KDec 31, 2021Not effectiveSegregation of duties; Accounting expertise and resourcesEDGAR

Others on the Clock in the same industry

By SEC industry code: 3533, Oil & Gas Field Machinery & Equipment, then related codes.

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Based on public SEC filings. Causes are grouped into standard categories by Ctrl Worx. The filings are the authority. Ctrl Worx is not affiliated with QS Energy, Inc. or the SEC. Not investment advice. Why you can rely on the Watch List.