Avidia Bancorp EVP buys 2,040 shares at $21.16

Avidia Bancorp, Inc. executive vice president of human resources Thomas Doane reported an open-market purchase of common stock through a retirement plan.

Rhea-AI Filing Summary

Avidia Bancorp, Inc. executive vice president of human resources Thomas Doane reported an open-market purchase of common stock through a retirement plan. On April 28, 2026, a 401(k) account associated with him bought 2,040 shares of Avidia Bancorp at $21.16 per share.

After this transaction, that 401(k) plan held 17,495 shares of common stock indirectly for him. Separate entries show 1,096 shares held indirectly through an ESOP and 141 shares held directly in his own name, based on the positions reported as of the same date.

Insider Trade Summary

Net Buyer: 2,040 shares

Net Buy 3 txns

Insider Doane Thomas

Role EVP- Human Resources

Bought 2,040 shs ($43K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	2,040	$21.16	$43K
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 17,495 shares (Indirect, By 401(k)); Common Stock — 141 shares (Direct); Common Stock — 1,096 shares (Indirect, By ESOP)

Footnotes (1)

1. F1. Reflects transactions not required to be reported pursuant to Section 16 of the Securities Act of 1934, as amended.

Key Figures

Shares purchased: 2,040 shares Purchase price: $21.16 per share 401(k) holdings after: 17,495 shares +2 more

5 metrics

Shares purchased 2,040 shares Open-market purchase on April 28, 2026 via 401(k)

Purchase price $21.16 per share Open-market transaction in Avidia Bancorp common stock

401(k) holdings after 17,495 shares Total common shares held indirectly by 401(k) after purchase

ESOP holdings after 1,096 shares Common shares held indirectly through ESOP as reported

Direct holdings after 141 shares Common shares held directly by Thomas Doane

Key Terms

ESOP, 401(k), Section 16, open-market purchase

4 terms

ESOP financial

"direct_or_indirect: "I", nature_of_ownership: "By ESOP""

An Employee Stock Ownership Plan (ESOP) is a program that gives employees ownership shares in their company, often as part of their benefits package. It acts like a company-sponsored savings plan, allowing workers to have a stake in the company's success, which can boost motivation and loyalty. For investors, ESOPs can influence company decisions and stock value, making them an important aspect of corporate ownership and governance.

401(k) financial

"nature_of_ownership: "By 401(k)""

A 401(k) is a type of retirement savings plan offered by employers that allows workers to set aside a portion of their paycheck before taxes are taken out. The money saved in a 401(k) can grow over time through investments, helping individuals build funds for their future retirement. It matters to investors because it provides a tax-advantaged way to save and invest for long-term financial security.

Section 16 regulatory

"Reflects transactions not required to be reported pursuant to Section 16 of the Securities Act of 1934, as amended."

Section 16 is a U.S. securities law rule that governs the trading and disclosure obligations of company insiders — typically officers, directors and large shareholders — to promote transparency and deter unfair profit-taking. It requires insiders to publicly report their stock trades and allows companies or the issuer to reclaim quick, short-term profits from certain insider trades, like a scoreboard and a refund policy that help investors see and limit possible insider advantage.

open-market purchase financial

"transaction_action: "open-market purchase""

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did AVBC executive Thomas Doane report?

Thomas Doane reported an open-market purchase of 2,040 Avidia Bancorp shares at $21.16 each through a 401(k) plan, increasing that plan’s holdings to 17,495 shares of common stock associated with him as of April 28, 2026.

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

The executive vice president bought 2,040 AVBC common shares at a price of $21.16 per share through a 401(k) plan. This transaction is disclosed as an open-market or private purchase on April 28, 2026, in the Form 4 filing.

How many AVBC shares does Thomas Doane hold through his 401(k) after this filing?

After the reported transaction, the 401(k) account associated with Thomas Doane held 17,495 Avidia Bancorp common shares indirectly on his behalf. This total reflects the position following the 2,040-share open-market purchase disclosed for April 28, 2026.

What are Thomas Doane’s other reported Avidia Bancorp (AVBC) holdings?

Besides his 401(k) position, Thomas Doane is reported holding 1,096 AVBC shares indirectly through an ESOP and 141 shares directly. These amounts represent his reported ownership balances following the transactions recorded as of April 28, 2026, in the Form 4.

Is the AVBC EVP’s share purchase a direct or indirect holding?

The 2,040-share purchase is reported as an indirect holding, described as held “By 401(k).” The filing distinguishes this from his direct ownership of 141 shares and an additional indirect holding of 1,096 shares through an ESOP as of the same date.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 04/29/2026 - 03:25 PM EDT Learn about SEC filing dates

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^*

Doane Thomas

(Last) (First) (Middle)

42 MAIN ST

(Street)

HUDSON MASSACHUSETTS 01749

(City) (State) (Zip)

UNITED STATES

(Country)

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)
	EVP- Human Resources

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/28/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	04/28/2026		P		2,040	A	$21.16	17,495(1)	I	By 401(k)
Common Stock								141	D
Common Stock								1,096(1)	I	By ESOP

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:

1. Reflects transactions not required to be reported pursuant to Section 16 of the Securities Act of 1934, as amended.

	/s/ Victor L. Cangelosi, pursuant to power of attorney	04/29/2026
	** 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.
* Form 4: SEC 1474 (03-26)