AVBC Form 4 shows director purchase of 525 Avidia Bancorp shares

Rhea-AI Filing Summary

Avidia Bancorp, Inc. (AVBC) director reported a small open-market purchase of company stock. On 11/18/2025, the reporting person acquired 525 shares of common stock at a price of $14.965 per share. After this transaction, the filing shows the director beneficially owning 525 shares held indirectly through a Roth IRA. This Form 4 reflects an insider increasing personal exposure to Avidia Bancorp through retirement-account holdings.

Insider Trade Summary

Net Buyer: 525 shares

Net Buy 1 txn

Insider Girard Michael R

Role Director

Bought 525 shs ($8K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	525	$14.965	$8K

Holdings After Transaction: Common Stock — 525 shares (Indirect, By Roth IRA)

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 11/20/2025 - 04:02 PM Learn about SEC filing dates

FAQ

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

The filing reports that a director of Avidia Bancorp, Inc. (AVBC) purchased 525 shares of common stock on 11/18/2025.

At what price were the Avidia Bancorp (AVBC) shares acquired in this Form 4?

The director bought the 525 AVBC shares at a price of $14.965 per share.

How many Avidia Bancorp (AVBC) shares does the insider beneficially own after the reported transaction?

Following the reported transaction, the Form 4 shows the director beneficially owning 525 shares of AVBC common stock.

Is the Avidia Bancorp (AVBC) insider ownership direct or indirect in this filing?

The 525 AVBC shares are reported as held indirectly through a Roth IRA.

What is the relationship of the reporting person to Avidia Bancorp (AVBC)?

The reporting person is identified as a Director of Avidia Bancorp, Inc. on this Form 4.

What is the earliest transaction date reported on this Avidia Bancorp (AVBC) Form 4?

The earliest transaction date disclosed for the reported trade is 11/18/2025.

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^*

Girard Michael R

(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
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
11/18/2025

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	11/18/2025		P		525	A	$14.965	525	I	By Roth IRA

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	11/20/2025
	** 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.