---
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"
generated_at: "2026-06-26T14:48:10.508238+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Director Ann Mather to resign from Arista board, not seeking re-election

## Summary
- 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.

## SEC filing metadata
- 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
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02
- 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

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001596532-22-000100
- JSON: https://secwatch.observer/filing/0001596532-22-000100.json
- Plain text: https://secwatch.observer/filing/0001596532-22-000100.txt

## Key facts
- Executive change
  Ann Mather resigned as Director at Arista Networks, Inc..
  - Action: resigned
  - Role: Director
  source text: 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_url: https://www.sec.gov/Archives/edgar/data/1596532/000159653222000100/0001596532-22-000100-index.htm

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