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

Rhea-AI Filing Summary

Avidia Bancorp insider purchase recorded on Form 4. Barry H. Jensen, EVP and Chief Administrative Officer and director, purchased 2,500 shares of Avidia Bancorp (AVBC) on 08/22/2025 at $14.945 per share. After the purchase he beneficially owns 17,500 shares directly and 100 shares indirectly through an LLC. The filing was signed by Victor L. Cangelosi pursuant to power of attorney on 08/26/2025.

Positive

• Insider purchase reported indicating an executive increased personal holdings by 2,500 shares
• Complete disclosure with transaction date, price ($14.945), and resulting ownership reported

Negative

• None.

Insights

Securities Analyst

TL;DR: Insider executive bought 2,500 shares at $14.945, modestly increasing direct ownership to 17,500 shares.

The transaction is a routine Section 16 filing documenting a small open-market purchase by an executive who is also a director. The purchase size (2,500 shares) and post-transaction direct holding (17,500 shares) are modest relative to typical institutional positions and likely do not materially change insider alignment with shareholders. The unit price of $14.945 is disclosed; no derivative activity or additional cash consideration beyond the per-share price is reported. The filing includes a power-of-attorney signature dated 08/26/2025.

Corporate Governance Expert

TL;DR: Disclosure is complete for the reported non-derivative purchase and shows direct and indirect holdings.

The Form 4 properly reports the reporting person's relationship to the issuer (EVP and Chief Administrative Officer and director), transaction code, number of shares acquired, price, and resulting beneficial ownership split between direct and indirect holdings. There is no amendment indicated and no derivative securities reported, suggesting a straightforward open-market purchase without an associated plan disclosed on this form.

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
Estimated average burden
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).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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)
08/22/2025

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	08/22/2025		P		2,500	A	$14.945	17,500	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	08/26/2025
	** 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

What transaction did Barry H. Jensen report on Form 4 for AVBC?

He reported a purchase of 2,500 shares of Avidia Bancorp (AVBC) on 08/22/2025 at $14.945 per share.

How many AVBC shares does the reporting person beneficially own after the transaction?

After the reported purchase he beneficially owns 17,500 shares directly and 100 shares indirectly through an LLC.

What is the reporting person’s role at Avidia Bancorp (AVBC)?

The reporting person is an Executive Vice President and Chief Administrative Officer and is also listed as a director.

When was the Form 4 signed and by whom?

The Form 4 was signed pursuant to power of attorney by Victor L. Cangelosi on 08/26/2025.

Were any derivative securities reported in this Form 4 for AVBC?

No derivative securities were reported; Table II shows no entries.