{"schema_version":"secwatch.filing_event.v1","accession":"0001596532-22-000100","form_type":"8-K","ticker":"ANET","cik":"0001596532","company_name":"Arista Networks, Inc.","filed_at":"2022-03-29T23:59:59+00:00","discovered_at":"2026-05-14T18:04:07.275243+00:00","generated_at":"2026-06-26T14:48:10.508238+00:00","sec_items":["5.02"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Director Ann Mather to resign from Arista board, not seeking re-election","bullets":["Ann Mather, Class II director, will not stand for re-election; resigns effective at 2022 Annual Meeting.","Decision due to desire to devote more time to other professional commitments; no disagreement with company.","Board size to reduce from nine to eight directors as of the effective date.","Company expressed appreciation for Mather's leadership and contributions."],"urls":{"canonical":"https://secwatch.observer/filing/0001596532-22-000100","json":"https://secwatch.observer/filing/0001596532-22-000100.json","markdown":"https://secwatch.observer/filing/0001596532-22-000100.md","text":"https://secwatch.observer/filing/0001596532-22-000100.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1596532/000159653222000100/0001596532-22-000100-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1596532/000159653222000100/anet-20220328.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-26T14:48:10.508238+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":"a72469f021","claim":"Ann Mather resigned as Director at Arista Networks, Inc..","evidence_excerpt":"On March 28, 2022, Ann Mather, a Class II director, notified Arista Networks, Inc. (the “Company”) that she will not stand for re-election as a director at the end of her current term and intends to resign from the board of directors of the Company (“Board”), effective as of the date of the Company’s 2022 Annual Meeting of Stockholders","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1596532/000159653222000100/0001596532-22-000100-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}