---
schema_version: "secwatch.filing_event.v1"
accession: "0000943374-25-000418"
form_type: "8-K"
ticker: "AVBC"
cik: "0002058758"
company_name: "Avidia Bancorp, Inc."
filed_at: "2025-09-25T23:59:59+00:00"
generated_at: "2026-05-17T05:43:13.275227+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Avidia Bancorp appoints Michael Gilles to Board of Directors, effective Sept 25

## Summary
- Michael O. Gilles appointed to Board of Directors and Avidia Bank board, effective September 25, 2025.
- Gilles also appointed to serve on the Audit Committee.
- Brings over 45 years of community banking experience; most recently EVP/COO/CFO of Cambridge Financial Group.
- No material transactions with the Company exceeding $120,000; no arrangement for selection.
- Gilles is a Certified Management Accountant and holds a B.S. in Accountancy from Bentley University.

## SEC filing metadata
- accession: 0000943374-25-000418
- form_type: 8-K
- ticker: AVBC
- cik: 0002058758
- company_name: Avidia Bancorp, Inc.
- filed_at: 2025-09-25T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2058758/000094337425000418/0000943374-25-000418-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2058758/000094337425000418/form8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000943374-25-000418
- JSON: https://secwatch.observer/filing/0000943374-25-000418.json
- Plain text: https://secwatch.observer/filing/0000943374-25-000418.txt

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