---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-097240"
form_type: "8-K"
ticker: "ADTN"
cik: "0000926282"
company_name: "ADTRAN Holdings, Inc."
filed_at: "2023-04-11T23:59:59+00:00"
generated_at: "2026-06-17T03:58:15.416685+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# ADTRAN pre-announces Q1 revenue of $322-326M, below guidance of $355-375M

## Summary
- Preliminary Q1 revenue $322M-$326M, missing guidance of $355M-$375M due to customer inventory corrections.
- GAAP operating margin expected -14% to -17%; non-GAAP operating margin -1% to -2.5%.
- Subscriber Solutions impacted by customer inventory corrections; Access & Optical Networking grew sequentially.
- CEO expects inventory issues transitory with improvement in Q2; company adjusting expenses near term.
- Final Q1 results scheduled for release on May 8/9, 2023.

## SEC filing metadata
- accession: 0001193125-23-097240
- form_type: 8-K
- ticker: ADTN
- cik: 0000926282
- company_name: ADTRAN Holdings, Inc.
- filed_at: 2023-04-11T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/926282/000119312523097240/0001193125-23-097240-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/926282/000119312523097240/d499918d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-097240
- JSON: https://secwatch.observer/filing/0001193125-23-097240.json
- Plain text: https://secwatch.observer/filing/0001193125-23-097240.txt

## Key facts
- Earnings Releases
  ADTRAN Holdings, Inc. reported fiscal quarter ended March 31, 2023 results: revenue expected to be between $322 million and $326 million.
  - Period: fiscal quarter ended March 31, 2023
  - Revenue: expected to be between $322 million and $326 million
  - Result: preliminary results
  source text: 31, 2023. All figures in this release are approximate due to the preliminary nature of the announcement. For the first quarter, preliminary revenue is expected to be between $322 million and $326 million as compared to our guidance of $355 million to $375 million. This was primarily due to customer inventory corrections which impacted our Subscriber Solutions
  evidence_url: https://www.sec.gov/Archives/edgar/data/926282/000119312523097240/0001193125-23-097240-index.htm

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