Avidia Bancorp CEO buys 3,130 AVBC shares

Avidia Bancorp, Inc. President and CEO Robert D. Cozzone reported an open-market purchase of 3,130 shares of common stock on 09/18/2025 at an average price of $15.9702 per share.

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(High)

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Rhea-AI Filing Summary

Avidia Bancorp, Inc. President and CEO Robert D. Cozzone reported an open-market purchase of 3,130 shares of common stock on 09/18/2025 at an average price of $15.9702 per share. After this transaction, he indirectly owns 43,147 shares through a 401(k) plan and directly holds 1,000 shares.

Insider Trade Summary

Net Buyer: 3,130 shares

Net Buy 2 txns

Insider Cozzone Robert D

Role President & CEO

Bought 3,130 shs ($50K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	3,130	$15.9702	$50K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 43,147 shares (Indirect, By 401(k)); Common Stock — 1,000 shares (Direct)

FAQ

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What insider transaction did Avidia Bancorp (AVBC) report on this Form 4?

Avidia Bancorp reported that President and CEO Robert D. Cozzone bought 3,130 shares of common stock. The purchase was an open-market transaction on 09/18/2025 at $15.9702 per share, increasing his reported beneficial holdings in the company.

At what price did the Avidia Bancorp (AVBC) CEO buy shares?

The CEO’s reported purchase price was $15.9702 per share. This price reflects the average cost for the 3,130 Avidia Bancorp common shares acquired in an open-market transaction dated 09/18/2025, as disclosed in the Form 4 filing.

How many Avidia Bancorp (AVBC) shares does the CEO now beneficially own?

After the reported transaction, the CEO beneficially owns 43,147 shares indirectly and 1,000 shares directly. The 43,147 shares are held through a 401(k) account, while the 1,000-share position is reported as directly owned common stock in his name.

How is the Avidia Bancorp (AVBC) CEO’s ownership structured after the trade?

The Form 4 shows two types of ownership: 43,147 Avidia Bancorp common shares held indirectly via a 401(k) plan, and 1,000 shares held directly. Both positions are reported as beneficial ownership interests for President and CEO Robert D. Cozzone.

Was the Avidia Bancorp (AVBC) CEO’s transaction a purchase or a sale?

The transaction was a purchase of Avidia Bancorp common stock. The Form 4 uses transaction code “P” and describes it as an open-market purchase of 3,130 shares on 09/18/2025, rather than a sale or other type of disposition.

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Accepted by SEC EDGAR 09/19/2025 - 04:28 PM EDT

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).

1. Name and Address of Reporting Person^*

Cozzone Robert D

(Last)

(First)

(Middle)

42 MAIN ST

(Street)

HUDSON

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

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.

Source: View Original Filing on SEC EDGAR