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Avidia Bancorp director gets 20K shares, 50K options

Avidia Bancorp director Michael O. Gilles received new restricted stock and option grants, increasing his direct and indirect equity stake in AVBC.

(Neutral)
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Form Type
4

Rhea-AI Filing Summary

Avidia Bancorp, Inc. (AVBC) director Michael O. Gilles reported equity compensation awards on September 16, 2026. He received 20,076 shares of restricted common stock, vesting 20% per year commencing on September 16, 2027, and stock options for 50,190 shares at an exercise price of $22.29, also vesting 20% per year from September 16, 2027 and expiring September 16, 2036. Following these awards, he holds 46,172 common shares directly, plus indirect holdings through an IRA, spouse, and as custodian for a grandchild, and 50,190 stock options; no Rule 10b5-1 trading plan is reported.

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Negative

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Insider GILLES MICHAEL O
Role Director
Type Security Shares Price Value
Grant/Award Stock Options F2 50,190 $0.00 $0.00
Grant/Award Common Stock F1 20,076 $0.00 $0.00
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Stock Options — 50,190 contracts (Direct); Common Stock — 46,172 shares (Direct); Common Stock — 20,000 shares (Indirect, By IRA); Common Stock — 5,000 shares (Indirect, By Spouse); Common Stock — 1,300 shares (Indirect, As custodian for grandchild)
Footnotes (2)
  1. F1. Shares of restricted stock vest at a rate of 20% per year commencing on September 16, 2027.
  2. F2. Stock options vest at a rate of 20% per year commencing on September 16, 2027.
Restricted stock granted 20,076 shares Equity award to director on September 16, 2026, vesting 20% annually from September 16, 2027
Stock options granted 50,190 options Grant on September 16, 2026 to purchase common stock
Option exercise price $22.29 per share Exercise price for 50,190 stock options granted September 16, 2026
Vesting rate 20% per year Applies to both restricted stock and options, commencing September 16, 2027
Options expiration September 16, 2036 Expiration date of 50,190 stock options
Direct common shares after award 46,172 shares Director’s direct AVBC common stock holdings following the awards
Indirect IRA holding 20,000 shares Common stock held indirectly by IRA
Indirect spouse holding 5,000 shares Common stock held indirectly by spouse
restricted stock financial
"Shares of restricted stock vest at a rate of 20% per year"
Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.
stock options financial
"Stock options vest at a rate of 20% per year commencing"
Stock options are agreements that give a person the right to buy or sell a company's stock at a specific price within a certain time frame. They are often used as a reward or incentive, similar to a coupon that can be used later if the stock price rises, allowing the holder to make a profit.
vesting financial
"vest at a rate of 20% per year commencing on September 16, 2027"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
IRA financial
"Common Stock ... indirect ownership nature described as By IRA"
An individual retirement account (IRA) is a savings account designed to help people put aside money for their retirement, often with tax advantages that encourage long-term savings. It matters to investors because it can grow over time, providing financial security later in life, and offers benefits that can reduce current taxes or allow investments to compound more effectively.

FAQ

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

What equity awards did AVBC director Michael O. Gilles receive on September 16, 2026?

He received 20,076 shares of restricted common stock and stock options for 50,190 shares of Avidia Bancorp, Inc. common stock as equity compensation awards.

What are the vesting terms of the restricted stock reported for AVBC director Gilles?

The 20,076 restricted shares vest at a rate of 20% per year, commencing on September 16, 2027, until fully vested.

What are the key terms of the stock options granted to AVBC director Gilles?

He was granted options for 50,190 shares with an exercise price of $22.29 per share, vesting 20% per year starting September 16, 2027, and expiring on September 16, 2036.

How many AVBC common shares does director Gilles hold directly after these transactions?

After the September 16, 2026 awards, Michael O. Gilles holds 46,172 shares of Avidia Bancorp, Inc. common stock as direct ownership.

What indirect holdings of AVBC stock are reported for director Gilles?

Indirectly, he holds 20,000 shares through an IRA, 5,000 shares held by his spouse, and 1,300 shares held as custodian for a grandchild.

Were the AVBC insider transactions by Gilles under a Rule 10b5-1 trading plan?

No. The filing indicates the Rule 10b5-1 checkbox is not marked affirmatively, so no Rule 10b5-1 trading plan is reported for these transactions.

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

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Learn about SEC filing dates
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*
GILLES MICHAEL O

(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)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/16/2026
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 Stock09/16/2026A20,076(1)A$046,172D
Common Stock20,000IBy IRA
Common Stock5,000IBy Spouse
Common Stock1,300IAs custodian for grandchild
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
Stock Options$22.2909/16/2026A50,190(2)09/16/202709/16/2036Common Stock50,190(2)$050,190(2)D
Explanation of Responses:
1. Shares of restricted stock vest at a rate of 20% per year commencing on September 16, 2027.
2. Stock options vest at a rate of 20% per year commencing on September 16, 2027.
/s/ Victor L. Cangelosi, pursuant to power of attorney09/17/2026
** 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)

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