---
schema_version: "secwatch.filing_event.v1"
accession: "0001580808-23-000072"
form_type: "8-K"
ticker: "ATEN"
cik: "0001580808"
company_name: "A10 Networks, Inc."
filed_at: "2023-04-03T23:59:59+00:00"
generated_at: "2026-06-17T06:59:15.414420+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# A10 Networks prelim Q1 revenue $56-58M, reiterates FY earnings guidance

## Summary
- Preliminary Q1 2023 revenue expected $56M-$58M; full-year earnings guidance reiterated.
- Cyber incident during Q1 caused ~$4.8M in orders shifted to future periods.
- Actions taken to flex cost structure to achieve full-year earnings targets.
- Q1 Adjusted EBITDA margin expanded year-over-year despite top line headwinds.
- Expects double-digit growth in full-year non-GAAP EPS; Q1 seen as bottom.

## SEC filing metadata
- accession: 0001580808-23-000072
- form_type: 8-K
- ticker: ATEN
- cik: 0001580808
- company_name: A10 Networks, Inc.
- filed_at: 2023-04-03T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1580808/000158080823000072/0001580808-23-000072-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1580808/000158080823000072/aten-20230403.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001580808-23-000072
- JSON: https://secwatch.observer/filing/0001580808-23-000072.json
- Plain text: https://secwatch.observer/filing/0001580808-23-000072.txt

## Key facts
- Earnings Releases
  A10 Networks, Inc. reported first quarter of 2023 results: revenue between $56 million and $58 million. Guidance reaffirmed.
  - Period: first quarter of 2023
  - Revenue: between $56 million and $58 million
  - Guidance: reaffirmed
  - Result: preliminary results
  source text: A10 Networks expects revenue in the first quarter of 2023 to be between $56 million and $58 million. The Company also reiterated guidance for full-year earnings.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1580808/000158080823000072/0001580808-23-000072-index.htm

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