Avidia Bancorp (AVBC) CEO adds 3,410 shares in open-market buy

Rhea-AI Filing Summary

Avidia Bancorp President & CEO Robert D. Cozzone bought 3,410 shares of common stock at $14.6584 per share in an open-market purchase through a 401(k) plan. After this buy, he indirectly holds 3,510 shares via the 401(k) and directly holds 1,000 shares.

Insider Trade Summary

Net Buyer: 3,410 shares ($49,985)

Net Buy 2 txns

Insider Cozzone Robert D

Role President & CEO

Bought 3,410 shs ($50K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	3,410	$14.6584	$50K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 3,510 shares (Indirect, By 401(k)); Common Stock — 1,000 shares (Direct)

Footnotes (1)

Form 4 Insider Transactions: What Each Field Means →

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^*

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)
08/11/2025

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	08/11/2025		P		3,410	A	$14.6584	3,510	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	08/12/2025
	** 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 transaction did Avidia Bancorp (AVBC) report for Robert D. Cozzone?

Avidia Bancorp reported that President & CEO Robert D. Cozzone purchased 3,410 shares of common stock. The shares were acquired in an open-market transaction at $14.6584 per share, executed through a 401(k) plan associated with him.

Was the Avidia Bancorp (AVBC) insider transaction a purchase or a sale?

The reported Avidia Bancorp transaction was a purchase. Robert D. Cozzone bought 3,410 shares of common stock in an open-market transaction, as indicated by transaction code P and the description for a purchase in the filing data.

How many Avidia Bancorp (AVBC) shares does Robert D. Cozzone hold after this transaction?

After the reported transaction, Robert D. Cozzone indirectly holds 3,510 Avidia Bancorp common shares through a 401(k) plan and directly holds 1,000 shares. These post-transaction share totals are explicitly listed in the ownership data.

How were the Avidia Bancorp (AVBC) shares held by Robert D. Cozzone structured?

The 3,410 newly purchased Avidia Bancorp shares are held indirectly through a 401(k) plan. In addition, the filing shows a separate direct holding of 1,000 common shares under his own name after the transaction.

On what date did the Avidia Bancorp (AVBC) insider purchase occur and at what price?

The insider purchase occurred on August 11, 2025. Robert D. Cozzone bought 3,410 Avidia Bancorp common shares at a transaction price of $14.6584 per share in an open-market purchase recorded in the Form 4 data.