---
schema_version: "secwatch.filing_event.v1"
accession: "0001288847-25-000177"
form_type: "8-K"
ticker: "FIVN"
cik: "0001288847"
company_name: "Five9, Inc."
filed_at: "2025-07-31T23:59:59+00:00"
generated_at: "2026-05-17T22:11:33.549788+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# CEO Michael Burkland to retire; Bryan Lee appointed permanent CFO; board proposes declassification

## Summary
- CEO Michael Burkland to retire; will remain CEO until successor found, then Executive Chairman for 6 months, then director until 2026 annual meeting.
- Bryan Lee, interim CFO since April 2025, appointed CFO and Treasurer permanently, effective July 31, 2025.
- Board proposes declassifying board over three years and removing supermajority vote threshold; amendments to be voted at 2026 annual meeting.

## SEC filing metadata
- accession: 0001288847-25-000177
- form_type: 8-K
- ticker: FIVN
- cik: 0001288847
- company_name: Five9, Inc.
- filed_at: 2025-07-31T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1288847/000128884725000177/0001288847-25-000177-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1288847/000128884725000177/fivn-20250729.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001288847-25-000177
- JSON: https://secwatch.observer/filing/0001288847-25-000177.json
- Plain text: https://secwatch.observer/filing/0001288847-25-000177.txt

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