Steven Louis Antonakes - 03 Mar 2026 Form 4 Insider Report for Eastern Bankshares, Inc. (EBC)

Reporting relationship: Executive VP
Issuer ticker: EBC
Reported as of: 03 Mar 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 05 Mar 2026, 16:44:12 UTC
Prior SEC filing: 03 Mar 2026
Next SEC filing: 02 Sep 2026
Source filing: View source filing
Reporting owner signature: /s/ Kathleen R. Henry, by Power of Attorney

Key filing fact

Steven Louis Antonakes filed Form 4 for Eastern Bankshares, Inc. (EBC) on 05 Mar 2026.

Key facts

This page summarizes Steven Louis Antonakes's Form 4 filing for Eastern Bankshares, Inc. (EBC).
3 reported transactions and 4 derivative rows are listed below.
Accepted by SEC: 05 Mar 2026, 16:44.

Change

Previous filing in this sequence was filed on 03 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001825588 Primary reporting owner

Antonakes Steven Louis

Relationship: Executive VP
Address: 125 HIGH STREET, BOSTON
Signature: /s/ Kathleen R. Henry, by Power of Attorney
Signature date: 05 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

EBC transaction

Common Stock

Options Exercise

Transaction value
Shares: +1,654
Change %: +2.2%
Price: $0.000000^*
Shares after: 75,776
Date: 03 Mar 2026
Ownership: Direct
Footnotes: F1, F7

EBC transaction

Common Stock

Tax liability

Transaction value
Shares: -486
Change %: -0.64%
Price: $19.45^*
Shares after: 75,290
Date: 03 Mar 2026
Ownership: Direct
Footnotes: F7

EBC holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 13,109
Date: 03 Mar 2026
Ownership: By 401(k)
Footnotes: F2

EBC holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 4,921
Date: 03 Mar 2026
Ownership: By ESOP
Footnotes: F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

EBC transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -1,654
Change %: -5%
Price: $0.000000^*
Shares after: 31,509
Date: 03 Mar 2026
Ownership: Direct
Underlying class: Common stock
Underlying amount: 1,654
Exercise price
Footnotes: F1, F5

EBC holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 9,488
Date: 03 Mar 2026
Ownership: Direct
Underlying class: Common stock
Underlying amount: 9,488
Exercise price
Footnotes: F1, F3

EBC holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,814
Date: 03 Mar 2026
Ownership: Direct
Underlying class: Common stock
Underlying amount: 1,814
Exercise price
Footnotes: F1, F4

EBC holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 4,629
Date: 03 Mar 2026
Ownership: Direct
Underlying class: Common stock
Underlying amount: 4,629
Exercise price
Footnotes: F1, F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 7 footnotes

Footnote F1

Restricted stock units convert into common stock on a one-for-one basis.

Footnote F2

Reflects the amount of shares beneficially owned, including shares received due to automatic dividend reinvestment, as of the date of this report.

Footnote F3

On March 1, 2022, the reporting person was granted 47,438 restricted stock units that vest in five equal annual installments beginning March 1, 2023, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date.

Footnote F4

On March 1, 2024, the reporting person was granted 5,439 restricted stock units that vest in three equal annual installments beginning March 1, 2025, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date.

Footnote F5

On March 3, 2025, the reporting person was granted 33,163 restricted stock units of which 4,963 vest in three equal annual installments beginning March 3, 2026, after market close, and 28,200 vest after 3 years, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date.

Footnote F6

On March 2, 2026, the reporting person was granted 4,629 restricted stock units that vest in three equal annual installments beginning March 2, 2027, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date.

Footnote F7

The reporting person's immediately preceding Form 4, filed on March 3, 2026, inadvertently understated the amount of securities beneficially owned following reported transaction(s) by 920 common shares. The understatement was the net effect of two clerical errors. The first was an understatement of 20 shares in the disclosure of directly owned shares disposed of for tax withholding, resulting in an overstatement of 20 shares beneficially owned. To clarify, the Form 4 filed on March 3, 2026 should have disclosed that a total of 3,955 directly owned shares were disposed of for tax withholding (not 3,935 shares). The second clerical error was the omission of 940 directly held shares that had been previously been reported as acquired. The net of these transactions was an understatement of 920 common shares. The amount shown in this table corrects those two inadvertent clerical errors.