Avidia Bancorp (AVBC)CFO bought ~$50K

~$50K

Approx. value · 3,245 sh @ $15.41

20K

Holds after · shares reported

Traded

Nov 24, 2025

Filed

Nov 25, 2025

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Sep 25, 2025Company filing · Form 8-K · Executive changeChanged a top executive or board member“On September 25, 2025, Avidia Bancorp, Inc. (the “Company”) appointed Michael O. Gilles to its Board of Directors, to serve in the class of Directors with terms expiring in 2028.”
2. Oct 23, 2025Company filing · Form 8-K · ResultsReported its results
3. Oct 30, 2025Insider · 2 peopleInsiders: 2 purchases (~$87K)
4. Oct 31, 2025Insider · 1 personInsiders: 2 purchases (~$37K)
5. Nov 3, 2025Insider · 9 days before an 8-KCEO purchased ~$50K of AVBC shares in the open market
6. Nov 5, 2025Insider · 2 peopleInsiders: 2 purchases (~$148K)
7. Nov 6, 2025Insider · 6 days before an 8-KDirector purchased ~$15K of AVBC shares in the open market
8. Nov 7, 2025Insider · 5 days before an 8-KDirector purchased ~$38K of AVBC shares in the open market
9. Nov 10, 2025Insider · 2 days before an 8-KCEO purchased ~$50K of AVBC shares in the open market
10. Nov 12, 2025Company filing · Form 8-K · Auditor changeChanged its auditor“On November 12, 2025, the Audit Committee of the Board of Directors (the “Audit Committee”) of Avidia Bancorp, Inc. (the “Company”) approved the dismissal of Berry, Dunn, McNeil & Parker, LLC, the Company’s independent registered public accounting firm, effective as of November 12, 2025.”
11. Nov 13, 2025InsiderOfficer purchased ~$76K of AVBC shares in the open market
12. Nov 18, 2025Insider · 2 peopleInsiders: 3 purchases (~$45K)
13. Nov 21, 2025InsiderCEO purchased ~$50K of AVBC shares in the open market
14. Nov 24, 2025 · this disclosureInsiderCFO purchased ~$50K of AVBC shares in the open market

What came next

1. Dec 1, 2025Insider · 2 peopleInsiders: 2 purchases (~$180K)
2. Dec 17, 2025InsiderOfficer purchased ~$43K of AVBC shares in the open market
3. Jan 29, 2026Company filing · Form 8-K · Results, Other newsReported its results, and reported other company news
4. Feb 11, 2026Insider · 2 peopleInsiders: 2 purchases (~$69K)
5. Feb 23, 2026Insider · 1 personInsiders: 2 purchases (~$37K)
6. Mar 2, 2026Insider · 2 peopleInsiders: 2 purchases (~$40K)
7. Mar 9, 2026Insider · 2 peopleInsiders: 2 purchases (~$79K)
8. Mar 12, 2026Insider · 3 peopleInsiders: 3 purchases (~$35K)
9. Mar 18, 2026InsiderOfficer purchased ~$29K of AVBC shares in the open market

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Avidia Bancorp

For Avidia Bancorp, OQRO holds 19 insider filings (SEC Form 4 or Form 144) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its AVBC page.

Other recent filings by Jonathan Michael Nelson, CFO and Treasurer

• SEC Form 4 at Avidia Bancorp (AVBC)Sep 3, 2026
• SEC Form 4 at Avidia Bancorp (AVBC)Jun 3, 2026
• SEC Form 4 at Avidia Bancorp (AVBC)Mar 10, 2026
• SEC Form 4 at Avidia Bancorp (AVBC)Sep 3, 2025
• SEC Form 4 at Avidia Bancorp (AVBC)Aug 28, 2025

The full history of Jonathan Michael Nelson, CFO and Treasurer is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Avidia Bancorp

• SEC Form 4Oct 9, 2026
• SEC Form 4Oct 9, 2026
• SEC Form 4Oct 9, 2026
• SEC Form 4Sep 16, 2026
• SEC Form 4Sep 3, 2026
• SEC Form 4Aug 27, 2026

Everything OQRO holds on this company is on its AVBC page.