SEC Form 4 reporting owner

Westermann Donald Michael

Westermann Donald Michael has filed 13 Form 4 transactions reported between January 28, 2026 and September 1, 2026, as Chief Information Officer of Eastern Bankshares, Inc..

Name as filed: Westermann Donald Michael

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$1.1M

3 lines

Companies

with Form 4 filings

Latest transaction

Sep 1, 2026

transaction date

Roles and reported holdings

EBCEastern Bankshares, Inc.
Jan 28, 2026 – Sep 1, 2026
Chief Information Officer
Held directly22,565 sh as of Sep 1, 2026 · Form 4
Held indirectly (latest line)0 sh as of Sep 1, 2026 · Form 4
24 months: $1.1M sold

Transaction history

All 13 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Sep 1, 2026	EBCChief Information Officer	Open-market saleCode S · indirect	23,005	$21.43	$493K@ $21.43	0	Form 4
Sep 1, 2026	EBCChief Information Officer	Open-market saleCode S · direct	10,407	$21.77	$227K@ $21.77	22,565	Form 4
Mar 3, 2026	EBCChief Information Officer	Shares withheld for tax or exercise priceCode F · direct	961	$19.45	$19K@ $19.45	32,972	Form 4
Mar 3, 2026	EBCChief Information Officer	Option exerciseCode M · direct	2,165	—	—	33,933	Form 4
Mar 2, 2026	EBCChief Information Officer	Grant or awardCode A · direct	7,099	—	—	7,099	Form 4
Mar 1, 2026	EBCChief Information Officer	Option exerciseCode M · direct	2,894	—	—	2,895	Form 4
Mar 1, 2026	EBCChief Information Officer	Option exerciseCode M · direct	1,977	—	—	0	Form 4
Mar 1, 2026	EBCChief Information Officer	Option exerciseCode M · direct	9,488	—	—	9,488	Form 4
Mar 1, 2026	EBCChief Information Officer	Shares withheld for tax or exercise priceCode F · direct	2,449	$19.56	$48K@ $19.56	31,768	Form 4
Mar 1, 2026	EBCChief Information Officer	Grant or awardCode A · direct	5,520	—	—	34,217	Form 4
Mar 1, 2026	EBCChief Information Officer	Shares withheld for tax or exercise priceCode F · direct	6,522	$19.56	$128K@ $19.56	28,697	Form 4
Mar 1, 2026	EBCChief Information Officer	Option exerciseCode M · direct	14,359	—	—	35,219	Form 4
Jan 28, 2026	EBCChief Information Officer	Open-market saleCode S · direct	21,256	$20.11	$427K@ $20.11	20,860	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.