STOCK TITAN

Avidia Bancorp (AVBC) EVP adds to stake with small open-market buys

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Avidia Bancorp, Inc. executive Nicolas Karmelek, EVP and CRO, reported two open-market purchases of Common Stock. He bought 19 shares on 2026-05-27 at $19.08 per share and 14 shares on 2026-02-25 at $18.92 per share, for a total of 33 shares.

He also reports indirect holdings of 22,110 shares of Common Stock held by a 401(k) plan and 1,096 shares held by an ESOP, both as of 2026-02-25, with the 401(k) balance reflecting transactions not required to be reported under Section 16.

Positive

  • None.

Negative

  • None.
Insider Karmelek Nicolas
Role EVP and CRO
Bought 33 shs ($627.40)
Type Security Shares Price Value
Purchase Common Stock 19 $19.08 $362.52
Purchase Common Stock 14 $18.92 $264.88
holding Common Stock F1 -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 7,727 shares (Direct); Common Stock — 22,110 shares (Indirect, By 401(k)); 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.
Shares purchased 2026-05-27 19 shares Common Stock bought at $19.08 per share on 2026-05-27
Purchase price 2026-05-27 $19.08 per share Open-market or private transaction in Common Stock
Shares purchased 2026-02-25 14 shares Common Stock bought at $18.92 per share on 2026-02-25
Purchase price 2026-02-25 $18.92 per share Open-market or private transaction in Common Stock
Indirect 401(k) holdings 22,110 shares Common Stock held indirectly by 401(k) as of 2026-02-25
Indirect ESOP holdings 1,096 shares Common Stock held indirectly by ESOP as of 2026-02-25
Total shares purchased in filing 33 shares Sum of reported open-market Common Stock purchases
Section 16 of the Securities Act of 1934 regulatory
"Reflects transactions not required to be reported pursuant to Section 16 of the Securities Act of 1934"
401(k) financial
"total_shares_following_transaction": "22110.0000", "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.
ESOP financial
"total_shares_following_transaction": "1096.0000", "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.
open market or private transaction financial
"transaction_code_description": "Purchase in open market or private transaction""

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

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FAQ

What insider stock purchases did AVBC executive Nicolas Karmelek report?

Nicolas Karmelek reported two open-market purchases of Avidia Bancorp (AVBC) Common Stock, totaling 33 shares. He bought 14 shares on 2026-02-25 and 19 shares on 2026-05-27 at prices just under $19.10 per share.

At what prices did Nicolas Karmelek buy AVBC shares in this Form 4?

Karmelek purchased AVBC Common Stock at $18.92 per share for 14 shares on 2026-02-25 and $19.08 per share for 19 shares on 2026-05-27. Both are reported as open-market or private transactions.

How many AVBC shares did Nicolas Karmelek buy in total in this filing?

Across the reported transactions, Karmelek bought a total of 33 shares of Avidia Bancorp (AVBC) Common Stock. This consists of 14 shares purchased on 2026-02-25 and 19 shares purchased on 2026-05-27 in open-market transactions.

What indirect AVBC holdings does Nicolas Karmelek disclose in this Form 4?

Karmelek discloses indirect holdings of 22,110 shares of AVBC Common Stock held by a 401(k) plan and 1,096 shares held by an ESOP as of 2026-02-25. The 401(k) balance reflects transactions not required to be reported under Section 16.

Were Nicolas Karmelek’s AVBC stock purchases made under a Rule 10b5-1 plan?

The Form 4’s Rule 10b5-1 checkbox is not marked, and the footnotes do not describe any Rule 10b5-1 trading plan. The reported AVBC stock purchases therefore are not identified as being executed under a pre-arranged trading plan.

What is Nicolas Karmelek’s role at Avidia Bancorp (AVBC)?

In this Form 4, Nicolas Karmelek is identified as an officer of Avidia Bancorp, Inc., holding the title of EVP and CRO (Executive Vice President and Chief Risk Officer). His reported AVBC stock transactions reflect activity in that capacity.
SEC Form 4
FORM 4UNITED 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*
Karmelek Nicolas

(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)
Director10% Owner
XOfficer (give title below)Other (specify below)
EVP and CRO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
02/25/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock02/25/2026P14A$18.927,708D
Common Stock05/27/2026P19A$19.087,727D
Common Stock22,110(1)IBy 401(k)
Common Stock1,096IBy 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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount 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 attorney07/30/2026
** Signature of Reporting PersonDate
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)