Form 4: Nelson Jonathan Michael reports purchase transactions in AVBC

Rhea-AI Filing Summary

Nelson Jonathan Michael reported open-market purchase transactions in a Form 4 filing for AVBC. The filing lists transactions totaling 9,923 shares at a weighted average price of $14.45 per share. Following the reported transactions, holdings were 9,923 shares.

Insider Trade Summary

Net Buyer: 9,923 shares ($143,360)

Net Buy 2 txns

Insider Nelson Jonathan Michael

Role CFO and Treasurer

Bought 9,923 shs ($143K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	9,923	$14.4472	$143K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 9,923 shares (Indirect, By 401(k)); Common Stock — 7,000 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^*

Nelson Jonathan Michael

(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)
	CFO and Treasurer

3. Date of Earliest Transaction (Month/Day/Year)
08/08/2025

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	08/08/2025		P		9,923	A	$14.4472	9,923	I	By 401(k)
Common Stock								7,000	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	08/11/2025
	** 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 August 8, 2025?

Avidia Bancorp reported its CFO and treasurer, Nelson Jonathan Michael, bought 9,923 shares of common stock on August 8, 2025 at $14.4472 per share. The purchase was an open-market transaction held indirectly through his 401(k) account.

How many Avidia Bancorp (AVBC) shares did the CFO buy and at what price?

The CFO bought 9,923 Avidia Bancorp common shares at $14.4472 each. This open-market purchase was recorded as an indirect holding through his 401(k), reflecting increased personal exposure to the company’s stock based on this filing.

What is the CFO’s total Avidia Bancorp (AVBC) share ownership after the reported trade?

After the reported trade, the CFO beneficially owned 9,923 Avidia Bancorp shares indirectly through his 401(k) and 7,000 shares directly. The filing distinguishes between indirect retirement-plan holdings and shares held in his own name.

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

The Avidia Bancorp insider transaction was a purchase. The Form 4 lists transaction code “P,” described as an open-market or private purchase, with 9,923 common shares acquired at a price of $14.4472 per share through the CFO’s 401(k).

How are direct and indirect holdings reported for Avidia Bancorp (AVBC) insiders?

Direct holdings are reported under ownership code “D,” while indirect holdings use code “I” with a description. In this filing, 9,923 shares are indirectly owned “By 401(k),” and 7,000 shares are listed as directly owned by the reporting officer.

Who signed the Avidia Bancorp (AVBC) Form 4 reporting this insider trade?

The Form 4 was signed by “/s/ Victor L. Cangelosi, pursuant to Power of Attorney” on August 11, 2025. This indicates the signatory acted under a power of attorney on behalf of reporting person Nelson Jonathan Michael.