---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-24-077274"
form_type: "8-K"
ticker: "FISI"
cik: "0000862831"
company_name: "FINANCIAL INSTITUTIONS INC"
filed_at: "2024-06-25T23:59:59+00:00"
generated_at: "2026-06-01T02:21:26.512338+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Director Mauricio F. Riveros resigns from Financial Institutions board due to health

## Summary
- Mauricio F. Riveros resigned from the Board of Financial Institutions, Inc. and Five Star Bank, effective June 19, 2024.
- Resignation due to health issues; no disagreement with the Company, Board, management, or operations.
- No replacement director has been announced as of the filing date.

## SEC filing metadata
- accession: 0000950170-24-077274
- form_type: 8-K
- ticker: FISI
- cik: 0000862831
- company_name: FINANCIAL INSTITUTIONS INC
- filed_at: 2024-06-25T23:59:59+00:00
- event_type: leadership
- 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/862831/000095017024077274/0000950170-24-077274-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/862831/000095017024077274/fisi-20240619.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-24-077274
- JSON: https://secwatch.observer/filing/0000950170-24-077274.json
- Plain text: https://secwatch.observer/filing/0000950170-24-077274.txt

## Key facts
- Executive change
  Mauricio F. Riveros resigned as Director at FINANCIAL INSTITUTIONS INC.
  - Action: resigned
  - Role: Director
  source text: On June 19, 2024, Mauricio F. Riveros tendered his resignation from the Board of Directors (the “Board”) of Financial Institutions, Inc. (the “Company”) and as a member of the Board of Five Star Bank effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/862831/000095017024077274/0000950170-24-077274-index.htm

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