---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-264438"
form_type: "8-K"
ticker: "ATEN"
cik: "0001580808"
company_name: "A10 Networks, Inc."
filed_at: "2024-11-22T23:59:59+00:00"
generated_at: "2026-05-29T19:45:35.644081+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# A10 Networks EVP Worldwide Sales & Marketing Karen Thomas resigns effective Dec 31, 2024

## Summary
- Resignation of Karen Thomas, Executive VP Worldwide Sales and Marketing, effective December 31, 2024.
- Severance includes lump sum of approximately $300,000, any 2024 bonus paid in March 2025, and COBRA coverage for nine months.
- Ms. Thomas will remain to assist in transition; no disruption to current operations or outlook expected.
- No replacement officer announced in the filing.
- Severance payments are under the existing Change in Control and Severance Agreement, subject to release.

## SEC filing metadata
- accession: 0001193125-24-264438
- form_type: 8-K
- ticker: ATEN
- cik: 0001580808
- company_name: A10 Networks, Inc.
- filed_at: 2024-11-22T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1580808/000119312524264438/0001193125-24-264438-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1580808/000119312524264438/d868856d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-264438
- JSON: https://secwatch.observer/filing/0001193125-24-264438.json
- Plain text: https://secwatch.observer/filing/0001193125-24-264438.txt

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