Powell Industries Inc SEC filings POWL

Powell Industries Inc has 1,002 filings in SEC EDGAR's recent list, going back to Mar 9, 2006. Its latest annual report, Form 10-K, was filed on Nov 19, 2025 for the period ended Sep 30, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 4, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (other events). The company's fiscal year ends on September 30.

Powell Industries Inc SEC filings
Form Description Filed Period
SD Specialized disclosure (conflict minerals) May 26, 2026 —
SD Specialized disclosure (conflict minerals) May 22, 2025 —
SD Specialized disclosure (conflict minerals) May 28, 2024 —
SD Specialized disclosure (conflict minerals) May 25, 2023 —
UPLOAD Letter from the SEC Apr 10, 2023 —
CORRESP Letter to the SEC Mar 30, 2023 —
CORRESP Letter to the SEC Mar 20, 2023 —
UPLOAD Letter from the SEC Mar 17, 2023 —
SD Specialized disclosure (conflict minerals) May 27, 2022 —
SD Specialized disclosure (conflict minerals) May 20, 2021 —
SD Specialized disclosure (conflict minerals) May 26, 2020 —
UPLOAD Letter from the SEC Mar 23, 2020 —
CORRESP Letter to the SEC Mar 18, 2020 —
CORRESP Letter to the SEC Mar 2, 2020 —
UPLOAD Letter from the SEC Feb 26, 2020 —
SD Specialized disclosure (conflict minerals) May 29, 2019 —
SD Specialized disclosure (conflict minerals) May 30, 2018 —
SD Specialized disclosure (conflict minerals) May 31, 2017 —
SD Specialized disclosure (conflict minerals) May 31, 2016 —
SD Specialized disclosure (conflict minerals) Jun 1, 2015 —
SD Specialized disclosure (conflict minerals) Jun 2, 2014 —
CT ORDER Filing Mar 28, 2014 —
UPLOAD Letter from the SEC Aug 16, 2011 —
CORRESP Letter to the SEC Jul 25, 2011 —
UPLOAD Letter from the SEC Jul 12, 2011 —
UPLOAD Letter from the SEC Jun 12, 2009 —
CORRESP Letter to the SEC May 27, 2009 —
CORRESP Letter to the SEC May 5, 2009 —
UPLOAD Letter from the SEC Apr 23, 2009 —
CORRESP Letter to the SEC Apr 1, 2009 —
UPLOAD Letter from the SEC Mar 17, 2009 —
CORRESP Letter to the SEC Mar 5, 2009 —
UPLOAD Letter from the SEC Feb 19, 2009 —
CT ORDER Filing Jun 23, 2008 —
UPLOAD Letter from the SEC Jul 11, 2007 —
NT 10-Q Notification of late filing May 11, 2007 Mar 31, 2007
CORRESP Letter to the SEC Mar 5, 2007 —
UPLOAD Letter from the SEC Feb 20, 2007 —

Showing 38 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

Company profile

Industry
Switchgear & Switchboard Apparatus (SIC 3613)
Listed as
POWL (Nasdaq)
Fiscal year ends
September 30
Incorporated in
NV
Headquarters
Houston, TX
SEC filer status
Large accelerated filer
SEC CIK
80420

Other Switchgear & Switchboard Apparatus companies

Source: SEC EDGAR filings. This is company-reported data, not investment advice.