---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-212439"
form_type: "8-K/A"
ticker: "ADTN"
cik: "0000926282"
company_name: "ADTRAN Holdings, Inc."
filed_at: "2023-08-14T23:59:59+00:00"
generated_at: "2026-06-11T13:41:20.475594+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.15
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# ADTRAN corrects balance sheet classification of $200M revolver and cash flow lease disclosure

## Summary
- Revolving credit facility reclassified from current to noncurrent: $60M as of Dec 31, 2022 and $200M as of June 30, 2023.
- Cash used in operating leases for H1 2023 corrected to $5.082M from $4.502M (supplemental disclosure).
- Corrections had no impact on consolidated income statements, total cash flows, or non-GAAP measures.
- Amendment filed August 14, 2023; initial earnings release was on August 6, 2023.

## SEC filing metadata
- accession: 0001193125-23-212439
- form_type: 8-K/A
- ticker: ADTN
- cik: 0000926282
- company_name: ADTRAN Holdings, Inc.
- filed_at: 2023-08-14T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.15
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/926282/000119312523212439/0001193125-23-212439-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/926282/000119312523212439/d515577d8ka.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-212439
- JSON: https://secwatch.observer/filing/0001193125-23-212439.json
- Plain text: https://secwatch.observer/filing/0001193125-23-212439.txt

## Key facts
- Earnings Releases
  ADTRAN Holdings, Inc. reported financial results for fiscal quarter and six months ended June 30, 2023.
  - Period: fiscal quarter and six months ended June 30, 2023
  - Result: reported results
  source text: The Initial Form 8-K included, as Exhibit 99.1, a copy of the Company’s press release that was issued on August 6, 2023 and that announced the financial results of the Company for the fiscal quarter and six months ended June 30, 2023 (the “Earnings Release”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/926282/000119312523212439/0001193125-23-212439-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.