{"schema_version":"secwatch.filing_event.v1","accession":"0001580808-23-000180","form_type":"8-K","ticker":"ATEN","cik":"0001580808","company_name":"A10 Networks, Inc.","filed_at":"2023-09-01T23:59:59+00:00","discovered_at":"2026-05-14T18:03:34.420571+00:00","generated_at":"2026-06-11T00:30:36.996485+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"A10 Networks EVP Worldwide Sales & Marketing Bruening to retire; Thomas named successor","bullets":["Matthew Bruening retires as EVP Worldwide Sales and Marketing effective Oct 1, 2023.","Karen Thomas appointed as new EVP Worldwide Sales and Marketing effective Sept 5, 2023.","Thomas has over 30 years sales leadership, most recently Chief Growth Officer at Alegeus Technologies.","Bruening's retirement is not due to any disagreement with the company; he will assist transition through Oct 1."],"urls":{"canonical":"https://secwatch.observer/filing/0001580808-23-000180","json":"https://secwatch.observer/filing/0001580808-23-000180.json","markdown":"https://secwatch.observer/filing/0001580808-23-000180.md","text":"https://secwatch.observer/filing/0001580808-23-000180.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1580808/000158080823000180/0001580808-23-000180-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1580808/000158080823000180/aten-20230830.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-11T00:30:36.996485+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"4530627fc0","claim":"Matthew Bruening retired as Executive Vice President, Worldwide Sales and Marketing at A10 Networks, Inc..","evidence_excerpt":"Matthew Bruening, Executive Vice President, Worldwide Sales and Marketing of A10 Networks, Inc. (the “Company”), notified the Company of his decision to retire, effective October 1, 2023.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1580808/000158080823000180/0001580808-23-000180-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retired"},{"label":"Role","value":"Executive Vice President, Worldwide Sales and Marketing"}],"fact_type":"executive_change"},{"claim_id":"d08de6bfb3","claim":"Karen Thomas was appointed as Executive Vice President, Worldwide Sales and Marketing at A10 Networks, Inc..","evidence_excerpt":"The Company has hired Karen Thomas to be the Company’s next Executive Vice President, Worldwide Sales and Marketing, effective September 5, 2023.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1580808/000158080823000180/0001580808-23-000180-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Executive Vice President, Worldwide Sales and Marketing"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}