Michael O. Gilles

CIK: 0001203190

Transaction Breakdown

Open Market Buys (P)6 (85.7%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)1 (14.3%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

AVBC

Avidia Bancorp, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (7 total)

AVBC
Avidia Bancorp, Inc.
Sep 16, 2026
Award(A)
Direct
20.1K shares-
AVBC
Avidia Bancorp, Inc.
May 15, 2026
Purchase(P)
Direct
1K shares at avg. $19.12$19K
AVBC
Avidia Bancorp, Inc.
May 15, 2026
Purchase(P)
Indirect
1K shares at avg. $19.17$19K
AVBC
Avidia Bancorp, Inc.
May 15, 2026
Purchase(P)
Indirect
1K shares at avg. $18.92$19K
AVBC
Avidia Bancorp, Inc.
May 14, 2026
Purchase(P)
Direct
1K shares at avg. $19.50$20K
AVBC
Avidia Bancorp, Inc.
May 13, 2026
Purchase(P)
Indirect
1K shares at avg. $19.50$19K
AVBC
Avidia Bancorp, Inc.
May 13, 2026
Purchase(P)
Indirect
3K shares at avg. $19.50$59K

		Type	Shares	Price		Ownership
Sep 16, 2026	AVBC Avidia Bancorp, Inc.	Award(A)	20,076	-	$0	Direct
May 15, 2026	AVBC Avidia Bancorp, Inc.	Purchase(P)	1,000	$19.12	$19,121	Direct
May 15, 2026	AVBC Avidia Bancorp, Inc.	Purchase(P)	1,000	$19.17	$19,170	Indirect
May 15, 2026	AVBC Avidia Bancorp, Inc.	Purchase(P)	1,000	$18.92	$18,916	Indirect
May 14, 2026	AVBC Avidia Bancorp, Inc.	Purchase(P)	1,000	$19.50	$19,500	Direct
May 13, 2026	AVBC Avidia Bancorp, Inc.	Purchase(P)	1,000	$19.50	$19,496	Indirect
May 13, 2026	AVBC Avidia Bancorp, Inc.	Purchase(P)	3,000	$19.50	$58,500	Indirect

1-7 of 7 transactions

About GILLES MICHAEL O

GILLES MICHAEL O (SEC CIK 0001203190) files insider reports with the SEC as Director of Avidia Bancorp, Inc. (AVBC).

Signal8 holds 4 ownership filings by GILLES MICHAEL O (1 Form 3, 3 Form 4), filed between Oct 2, 2025 and Sep 17, 2026. Those filings report 7 transactions, from May 13, 2026 to Sep 16, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on GILLES MICHAEL O's filings is in HUDSON, MA.

Recent filings by GILLES MICHAEL O

Sep 16, 2026: Grant or award of AVBC shares (Form 4, code A).
May 15, 2026: Open-market purchases of AVBC shares (3 lines, Form 4, code P).
May 14, 2026: Open-market purchase of AVBC shares (Form 4, code P).
May 13, 2026: Open-market purchases of AVBC shares (2 lines, Form 4, code P).

Other insiders filing for Avidia Bancorp, Inc. (AVBC)

Cozzone Robert D, President & CEO
Doane Thomas, EVP- Human Resources
Frost Donald J III, EVP- Consumer Banking
Jensen Barry H, EVP and Chief Admin Officer
Karmelek Nicolas, EVP and CRO
Nelson Jonathan Michael, CFO and Treasurer

How to read Form 4 transaction codes