Donald Michael Westermann

CIK: 0001825585

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)3 (21.4%)

Position reduction

Option Exercises (M)3 (21.4%)

Derivative conversions

Awards (A)3 (21.4%)

Compensation grants

Other (G, F, J, C, D, …)5 (35.7%)

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

Companies & Roles (1)

EBC

Eastern Bankshares, Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (14 total)

EBC
Eastern Bankshares, Inc.
Sep 1, 2026
Sale(S)
Indirect
23K shares at avg. $21.43$493K
EBC
Eastern Bankshares, Inc.
Sep 1, 2026
Sale(S)
Direct
10.4K shares at avg. $21.77$227K
EBC
Eastern Bankshares, Inc.
Mar 3, 2026
Exercise(M)
Direct
2.2K shares-
EBC
Eastern Bankshares, Inc.
Mar 3, 2026
Tax Payment(F)
Direct
961 shares at avg. $19.45$19K
EBC
Eastern Bankshares, Inc.
Mar 2, 2026
Award(A)
Restricted Stock Units
Direct
7.1K shares-
EBC
Eastern Bankshares, Inc.
Mar 1, 2026
Tax Payment(F)
Direct
2.4K shares at avg. $19.56$48K
EBC
Eastern Bankshares, Inc.
Mar 1, 2026
Award(A)
Direct
5.5K shares-
EBC
Eastern Bankshares, Inc.
Mar 1, 2026
Tax Payment(F)
Direct
6.5K shares at avg. $19.56$128K
EBC
Eastern Bankshares, Inc.
Mar 1, 2026
Exercise(M)
Direct
14.4K shares-
EBC
Eastern Bankshares, Inc.
Jan 28, 2026
Sale(S)
Direct
21.3K shares at avg. $20.11$427K
EBC
Eastern Bankshares, Inc.
Mar 3, 2025
Exercise(M)
Direct
14.4K shares-
EBC
Eastern Bankshares, Inc.
Mar 3, 2025
Tax Payment(F)
Direct
6.4K shares at avg. $17.73$113K
EBC
Eastern Bankshares, Inc.
Mar 3, 2025
Award(A)
Direct
35.6K shares-
EBC
Eastern Bankshares, Inc.
Mar 3, 2025
Tax Payment(F)
Direct
15.9K shares at avg. $17.73$282K

		Type	Shares	Price		Ownership
Sep 1, 2026	EBC Eastern Bankshares, Inc.	Sale(S)	23,005	$21.43	$492,997	Indirect
Sep 1, 2026	EBC Eastern Bankshares, Inc.	Sale(S)	10,407	$21.77	$226,560	Direct
Mar 3, 2026	EBC Eastern Bankshares, Inc.	Exercise(M)	2,165	-	$0	Direct
Mar 3, 2026	EBC Eastern Bankshares, Inc.	Tax Payment(F)	961	$19.45	$18,691	Direct
Mar 2, 2026	EBC Eastern Bankshares, Inc.	Award(A) Restricted Stock Units	7,099	-	-	Direct
Mar 1, 2026	EBC Eastern Bankshares, Inc.	Tax Payment(F)	2,449	$19.56	$47,902	Direct
Mar 1, 2026	EBC Eastern Bankshares, Inc.	Award(A)	5,520	-	$0	Direct
Mar 1, 2026	EBC Eastern Bankshares, Inc.	Tax Payment(F)	6,522	$19.56	$127,570	Direct
Mar 1, 2026	EBC Eastern Bankshares, Inc.	Exercise(M)	14,359	-	$0	Direct
Jan 28, 2026	EBC Eastern Bankshares, Inc.	Sale(S)	21,256	$20.11	$427,458	Direct
Mar 3, 2025	EBC Eastern Bankshares, Inc.	Exercise(M)	14,359	-	-	Direct
Mar 3, 2025	EBC Eastern Bankshares, Inc.	Tax Payment(F)	6,369	$17.73	$112,922	Direct
Mar 3, 2025	EBC Eastern Bankshares, Inc.	Award(A)	35,578	-	-	Direct
Mar 3, 2025	EBC Eastern Bankshares, Inc.	Tax Payment(F)	15,932	$17.73	$282,474	Direct

1-14 of 14 transactions

About Westermann Donald Michael

Westermann Donald Michael (SEC CIK 0001825585) files insider reports with the SEC as Chief Information Officer of Eastern Bankshares, Inc. (EBC).

Signal8 holds 5 ownership filings by Westermann Donald Michael, all Form 4s, filed between Mar 5, 2025 and Sep 2, 2026. Those filings report 14 transactions, from Mar 3, 2025 to Sep 1, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Westermann Donald Michael's filings is in BOSTON, MA.

Recent filings by Westermann Donald Michael

Sep 1, 2026: Open-market sales of EBC shares (2 lines, Form 4, code S).
Mar 3, 2026: Option exercise of EBC shares (Form 4, code M).
Mar 3, 2026: Tax withholding of EBC shares (Form 4, code F).
Mar 2, 2026: Grant or award of EBC derivative securities (Form 4, code A).
Mar 1, 2026: Tax withholding of EBC shares (Form 4, code F).

Other insiders filing for Eastern Bankshares, Inc. (EBC)

Bane Richard Corey, Director
SHEAHAN DENIS K, Chief Executive Officer
Rosato R David, Chief Financial Officer
Henry Kathleen Cloherty, Executive VP, General Counsel
Antonakes Steven Louis, Executive VP
CASEY JOSEPH F, Director

How to read Form 4 transaction codes