# EDGAR Filing Document

**Accession Number:** 0001825654
**File Stem:** 0001193125-26-088561
**Filing Date:** 2026-3
**Character Count:** 9215
**Document Hash:** 2a9c933ac6b584c73551a80fd7ce1b72
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-088561.hdr.sgml**: 20260303

**ACCESSION NUMBER**: 0001193125-26-088561

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260301

**FILED AS OF DATE**: 20260303

**DATE AS OF CHANGE**: 20260303

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Rivers Robert Francis
- **CENTRAL INDEX KEY:** 0001825654

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39610
- **FILM NUMBER:** 26715757

**MAIL ADDRESS:**
- **STREET 1:** 22 LIBERTY DRIVE
- **STREET 2:** UNIT 8M
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02210
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Eastern Bankshares, Inc.
- **CENTRAL INDEX KEY:** 0001810546
- **STANDARD INDUSTRIAL CLASSIFICATION:** SAVINGS INSTITUTION, FEDERALLY CHARTERED [6035]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 125 HIGH STREET, STE 901
- **STREET 2:** OLIVER STREET TOWER
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02110
- **BUSINESS PHONE:** 617-897-1100

**MAIL ADDRESS:**
- **STREET 1:** 125 HIGH STREET, STE 901
- **STREET 2:** OLIVER STREET TOWER
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02110

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] 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**<sup>*</sup><br>Rivers Robert Francis<br><sub>(Last) (First) (Middle)</sub><br>125 HIGH STREET<br><sub>(Street)</sub><br>BOSTON, MA 02110<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-03-01 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_Executive Chair_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Eastern Bankshares, Inc. [ EBC ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2026-03-01 |  | M |  | 47492<sup>(1)</sup> | A | $0 | 450766 | D |  |
| Common Stock | 2026-03-01 |  | F |  | 16893 | D | $19.56 | 433873 | D<sup>(2)</sup> |  |
| Common Stock | 2026-03-01 |  | A |  | 29632<sup>(10)</sup> | A | $0 | 463505 | D |  |
| Common Stock | 2026-03-01 |  | F |  | 11019 | D | $19.56 | 452486 | D<sup>(2)</sup> |  |
| Common Stock |  |  |  |  |  |  |  | 4921 | I<sup>(3)</sup> | By ESOP |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Restricted Stock Units | <sup>(1)</sup> | 2026-03-01 |  | M |  |  | 21347 | <sup>(5)</sup> | <sup>(5)</sup> | Common stock | 21347 | $0 | 21348 | D |  |
| Restricted Stock Units | <sup>(1)</sup> | 2026-03-01 |  | M |  |  | 10610 | <sup>(6)</sup> | <sup>(6)</sup> | Common stock | 10610 | $0 | 0 | D |  |
| Restricted Stock Units | <sup>(1)</sup> | 2026-03-01 |  | M |  |  | 15535 | <sup>(7)</sup> | <sup>(7)</sup> | Common stock | 15535 | $0 | 15535 | D |  |
| Restricted Stock Units | <sup>(1)</sup> |  |  |  |  |  |  | <sup>(8)</sup> | <sup>(8)</sup> | Common stock | 33671 |  | 33671 | D |  |
| Restricted Stock Units | <sup>(4)</sup> | 2026-03-02 |  | A |  | 33301 |  | <sup>(9)</sup> | <sup>(9)</sup> | Common stock | 33301 | $0 | 33301 | D |  |

---

### Footnotes:

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

(2) Includes 200,000 shares held in joint tenancy with spouse.

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

(4) Each restricted stock unit represents a contingent right to receive one share of EBC common stock on the applicable vesting date.

(5) On March 1, 2022, the reporting person was granted 106,736 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.

(6) On March 1, 2023, the reporting person was granted 31,829 restricted stock units that vest in three equal annual installments beginning March 1, 2024, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date.

(7) On March 1, 2024, the reporting person was granted 46,604 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.

(8) On March 3, 2025, the reporting person was granted 33,671 restricted stock units that vest in three equal annual installments beginning March 3, 2026, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date.

(9) On March 2, 2026, the reporting person was granted 33,301 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.

(10) Represents shares of Eastern Bankshares, Inc. (the "Company") common stock, par value $0.01 per share ("Common Stock") received upon vesting of a performance restricted stock unit ("PRSU") award eligible to vest based upon the Company's performance on total shareholder return ("TSR") measured at the end of the three-year performance period of January 1, 2023 through December 31, 2025 (the "Performance Period") relative to TSR performance over that performance period of the banks listed on the KBW Nasdaq Regional Banking Index (the "TSR Measure").  The Compensation and Human Capital Management Committee determined that the Company's performance of the TSR Measure resulted in a payout of 93.1% of target.

**Signature:** /s/ Kathleen R. Henry, by Power of Attorney  
**Date:** 2026-03-03

### Remarks:

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.**