ADTN 10-Q: SEC filing
ADTRAN Holdings
Filed with the SEC on · accession 0001193125-26-449723
ADTN filed a 10-Q (quarterly report) with the SEC on Nov 5, 2026. ADTRAN Holdings filed its Q3 2026 Form 10-Q, reporting quarterly financial results for the period ended September 30, 2026.
Summary of the filing
ADTRAN Holdings filed its Q3 2026 Form 10-Q, reporting quarterly financial results for the period ended September 30, 2026. The filing contains standard financial statements, segment disclosures, and debt covenant details with no single material corporate event disclosed.
Key details
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What did ADTN file with the SEC on Nov 5, 2026?
ADTN filed a 10-Q (SEC filing). ADTRAN Holdings filed its Q3 2026 Form 10-Q, reporting quarterly financial results for the period ended September 30, 2026. The filing contains standard financial statements, segment disclosures, and debt covenant details with no single material corporate event disclosed.
How do I read a 10-Q?
The quarterly report: unaudited results for the quarter plus management’s comments. Compare revenue, margins and cash flow with the same quarter last year. Check MD&A for guidance changes and what drove the quarter.
Why are SEC filings important?
Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 10-Q (quarterly report): The quarterly report: unaudited results for the quarter plus management’s comments.
Other ADTN SEC filings
- 8-K · SEC filingNov 3, 2026
- 8-K · Board changeOct 29, 2026
- 8-K · Executive departureAug 10, 2026
- 10-Q · SEC filingAug 4, 2026
- 8-K · SEC filingAug 4, 2026
- 8-K · Material agreementJul 23, 2026
- 8-K · Guidance cutJul 22, 2026
- 8-K · Board changeJun 26, 2026
- 144 · Insider sale plannedMay 20, 2026
- 8-K · Board changeMay 18, 2026
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