Avidia Bancorp Form 4: Cozzone Purchases 3,130 Shares; 1,000 Shares Sold

Rhea-AI Filing Summary

Robert D. Cozzone, President & CEO and a director of Avidia Bancorp (AVBC), reported insider transactions dated 09/18/2025. He purchased 3,130 shares of Avidia common stock at $15.9702 per share. After the reported purchase, his beneficial ownership is shown as 43,147 shares, held indirectly via a 401(k). The filing also records a disposition of 1,000 shares, with fewer transaction details provided for that sale. The Form 4 was signed on behalf of the reporting person by an attorney-in-fact on 09/19/2025.

Positive

• Insider purchase reported: Acquisition of 3,130 shares at $15.9702 signals an incremental increase in stake.
• Resulting beneficial ownership disclosed: Filing shows 43,147 shares held indirectly via a 401(k), providing transparency.

Negative

• Disposition lacks detail: The 1,000-share sale is recorded without an associated price or full transaction line in the provided text.
• Limited context: Filing contains no information on whether trades were part of a pre-arranged plan or routine 401(k) activity, restricting interpretation.

Insights

Financial Analyst

TL;DR: Routine insider purchase with modest size; neutral to slightly positive signal but not material alone.

The 3,130-share purchase at $15.9702 increases the reporting person’s indirect stake to 43,147 shares, indicating an incremental acquisition rather than a controlling change. The reported sale of 1,000 shares reduces holdings but lacks price details in the filing, limiting interpretation. Given the absence of material amounts, earnings data, or other corporate events in this filing, the transaction appears routine and carries limited market-moving significance on its own.

Corporate Governance Expert

TL;DR: Filing documents standard Section 16 activity; disclosure is mostly complete but one disposal lacks price detail.

The Form 4 correctly identifies the reporting person’s roles and reports both an acquisition and a disposition. The purchase is documented with price and resulting beneficial ownership, which supports transparency. However, the 1,000-share disposition is recorded without accompanying price or clear transaction-line detail in the form text provided, which limits full traceability of the sale against insider trading policies or pre-arranged plans.

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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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^*

Cozzone Robert D

(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)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President & CEO

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		3,130	A	$15.9702	43,147	I	By 401(k)
Common Stock								1,000	D

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

What insider trades did Robert D. Cozzone report for AVBC on 09/18/2025?

The Form 4 reports a purchase of 3,130 shares at $15.9702 per share and a disposition of 1,000 shares.

What was Robert D. Cozzone's beneficial ownership after the reported transaction?

The filing states a beneficial ownership of 43,147 shares, held indirectly via a 401(k).

Was the purchase price disclosed in the Form 4 for AVBC?

Yes. The purchase of 3,130 shares is shown at $15.9702 per share.

Is there complete information about the 1,000-share disposition?

No. The filing records the disposition of 1,000 shares but does not provide an associated price or full transaction details in the provided text.

Who signed the Form 4 for the reporting person?

The form was signed on behalf of the reporting person by Victor L. Cangelosi, pursuant to power of attorney, dated 09/19/2025.