[Form 4] Avidia Bancorp, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Barry H. Jensen, listed as an EVP and Chief Admin Officer and a director of Avidia Bancorp (AVBC), reported a personal transaction on 09/18/2025. He purchased 2,500 shares of Avidia common stock at a price of $15.85 per share. After the transaction he beneficially owns 20,000 shares directly and 100 shares indirectly through an LLC. The Form 4 was signed under power of attorney on 09/19/2025.

Positive

• Officer/director purchased shares, which can be interpreted as a sign of confidence by management.
• Post-transaction direct ownership of 20,000 shares is disclosed, improving transparency about insider holdings.

Negative

• None.

Insights

Financial Analyst

TL;DR: A routine insider purchase of 2,500 shares at $15.85; limited immediate valuation impact but signals officer-level buying.

The reported purchase is a straightforward open-market acquisition by an executive who also serves as a director. The size—2,500 shares—yields a disclosed direct holding of 20,000 shares post-transaction. For most investors this is a routine disclosure that provides incremental, not material, information about insider sentiment. No derivatives or dispositions were reported.

Corporate Governance Expert

TL;DR: Insider buying by an EVP/director is governance-relevant but the trade size appears modest relative to typical material thresholds.

Because the reporting person holds both officer and director roles, the transaction is relevant for monitoring alignment with shareholder interests. The filing shows direct and small indirect holdings and was executed and certified via power of attorney, which is routine. There are no indications of related-party transactions or large ownership changes in this filing.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Jensen Barry H

(Last) (First) (Middle)

42 MAIN ST

(Street)

HUDSON MA 01749

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Avidia Bancorp, Inc. [ AVBC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP and Chief Admin Officer

3. Date of Earliest Transaction (Month/Day/Year)
09/18/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/18/2025		P		2,500	A	$15.85	20,000	D
Common Stock								100	I	By LLC

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Victor L. Cangelosi, pursuant to power of attorney	09/19/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

Who filed the Form 4 for Avidia Bancorp (AVBC)?

The Form 4 was filed by Barry H. Jensen, who is reported as an EVP and Chief Admin Officer and a director.

What transaction did Barry H. Jensen report on 09/18/2025 for AVBC?

He reported a purchase of 2,500 shares of Avidia common stock at $15.85 per share on 09/18/2025.

How many Avidia shares does Barry H. Jensen beneficially own after the reported transaction?

He beneficially owns 20,000 shares directly and 100 shares indirectly through an LLC after the transaction.

Was the Form 4 signed directly by the reporting person?

The Form 4 was signed under power of attorney by Victor L. Cangelosi on 09/19/2025.

Did the filing report any derivative securities or dispositions?

No. The filing reports a non-derivative acquisition and contains no derivative securities or dispositions.