Avidia Bank Employee Stock Ownership Plan Trust - 30 Sep 2025 SCHEDULE 13G Report for Avidia Bancorp, Inc. Common Stock, par value $0.01 per share (AVBC)

Filing Manager
Avidia Bank Employee Stock Ownership Plan Trust
Reporting Manager
Avidia Bank Employee Stock Ownership Plan Trust
Security
Avidia Bancorp, Inc. Common Stock, par value $0.01 per share
Symbol
AVBC
Shares outstanding
20,076,250 shares
Disclosed Ownership
1,606,100 shares
Ownership
8%
Form type
SCHEDULE 13G
Filing time
13 Nov 2025, 15:58:52 UTC
Date of event
30 Sep 2025
SEC
View on sec.gov

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Avidia Bank Employee Stock Ownership Plan Trust 8% 1,606,100 1,606,100 0 /s/ Jared Gillespie Jared Gillespie, Vice President, Operations, Delaware Charter Guarantee & Trust Company dba Principal Trust Company, as Trustee