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Eastern Bankshares CEO converts 8.6K RSUs

Eastern Bankshares, Inc. (EBC) reports that Chief Executive Officer Denis K. Sheahan converted 8,607 restricted stock units into an equal number of shares of common stock on September 3, 2026.

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Eastern Bankshares, Inc. (EBC) reports that Chief Executive Officer Denis K. Sheahan converted 8,607 restricted stock units into an equal number of shares of common stock on September 3, 2026. Of these, 4,162 shares were delivered or withheld at $22.08 per share for payment of exercise price or tax liability.

Sheahan continues to hold significant equity interests, including indirect holdings of 269,662 common shares in a revocable trust, 33,305 shares in an IRA, and 902 shares through an ESOP, plus multiple outstanding RSU awards that each convert into common stock on a one-for-one basis.

Positive

  • None.

Negative

  • None.
Insider SHEAHAN DENIS K
Role Chief Executive Officer
Type Security Shares Price Value
Exercise Restricted Stock Units F8, F9 8,607 $0.00 $0.00
Exercise Common Stock F2 8,607 $0.00 $0.00
Exercise Price or Tax Liability Common Stock 4,162 $22.08 $92K
holding Restricted Stock Units F1, F2, F3 -- -- --
holding Restricted Stock Units F1, F2, F4 -- -- --
holding Restricted Stock Units F1, F2, F5 -- -- --
holding Restricted Stock Units F1, F2, F6 -- -- --
holding Restricted Stock Units F1, F2, F7 -- -- --
holding Restricted Stock Units F2, F10 -- -- --
holding Restricted Stock Units F8, F11 -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock F12 -- -- --
Holdings After Transaction: Restricted Stock Units — 285,116 contracts for 276,508 underlying shares (Direct); Common Stock — 4,445 shares (Direct); Common Stock — 269,662 shares (Indirect, By Revocable Trust); Common Stock — 33,305 shares (Indirect, By IRA); Common Stock — 902 shares (Indirect, By ESOP)
Footnotes (12)
  1. F1. Eastern Bankshares, Inc. (the "Company") issued these time-based restricted stock units ("RSUs") as of July 12, 2024, when the Company completed a merger with Cambridge Bancorp ("Cambridge"). Pursuant to the terms of the Agreement and Plan of Merger, dated September 19, 2023, Cambridge RSUs and performance-based restricted stock units ("PRSUs") were assumed and converted to Company RSUs at an exchange ratio of 4.956 Company units for each Cambridge unit.
  2. F2. Restricted stock units convert into common stock on a one-for-one basis.
  3. F3. This award for 17,907 Company RSUs replaced an award of Cambridge RSUs granted to the reporting person on February 15, 2021, that vested in three equal annual installments beginning one year after the grant date. The reporting person elected to defer receipt of common stock issuable upon the vesting of these RSUs.
  4. F4. This award for 3,752 Company RSUs replaced an award of Cambridge RSUs granted to the reporting person on February 15, 2022, that provided for vesting in three equal annual installments beginning one year after the grant date. The reporting person elected to defer receipt of common stock issuable upon vesting except for shares withheld for tax obligations.
  5. F5. This award for 34,544 Company RSUs replaced an award of Cambridge RSUs granted to the reporting person on April 28, 2023, that provided for vesting in three equal annual installments beginning one year after the grant date. The reporting person elected to defer receipt of common stock issuable upon vesting except for shares withheld for tax obligations.
  6. F6. This award for 33,721 Company RSUs replaced an award of Cambridge PRSUs granted to the reporting person on February 15, 2022. The Company RSU award provided for cliff vesting on December 31, 2024. The reporting person elected to defer receipt of common stock issuable upon vesting except for shares withheld for tax obligations.
  7. F7. This award for 42,221 Company RSUs replaced an award of Cambridge PRSUs that Cambridge granted to the reporting person on April 28, 2023. The Company RSU award provided for cliff vesting on December 31, 2025. The reporting person elected to defer receipt of common stock issuable upon vesting except for shares withheld for tax obligations.
  8. F8. Each restricted stock unit represents a contingent right to receive one share of Company common stock on the applicable vesting date.
  9. F9. On September 3, 2024, the reporting person was granted 25,821 restricted stock units that vest in three equal annual installments beginning September 3, 2025, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date.
  10. F10. On March 3, 2025, the reporting person was granted 154,088 restricted stock units of which 24,365 vest in three equal annual installments beginning March 3, 2026 after market close, and 129,723 vest in five equal installments beginning on March 3, 2026, after market close, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date.
  11. F11. On March 2, 2026, the reporting person was granted 24,340 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.
  12. F12. Reflects the amount of shares beneficially owned, including shares received due to automatic dividend reinvestment, as of the date of this report.
RSUs converted 8,607 units Restricted stock units converted into common stock on September 3, 2026
Shares delivered/withheld 4,162 shares Common shares delivered or withheld for exercise price or tax liability
Price per share for delivery/withholding $22.08 per share Value used for 4,162 shares delivered or withheld
Trust holdings 269,662 shares Common stock held indirectly by revocable trust
IRA holdings 33,305 shares Common stock held indirectly by IRA
ESOP holdings 902 shares Common stock held indirectly through ESOP with dividend reinvestment
Largest RSU position 120,023 underlying shares Restricted stock units tied to 120,023 shares of common stock
Net buy/sell effect 0 shares Net shares bought or sold across reported transactions
Restricted Stock Units financial
"issued these time-based restricted stock units ("RSUs") as of July 12, 2024"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
performance-based restricted stock units financial
"Cambridge RSUs and performance-based restricted stock units ("PRSUs") were assumed"
Performance-based restricted stock units are a type of employee equity award that converts into company shares only if predefined financial or operational targets are met over a set period. Think of it like a bonus check that becomes stock only when specific goals are hit; it ties pay to results, aligning managers’ incentives with shareholders. Investors care because these awards affect future share count, executive incentives, and signal how management’s success will be measured and rewarded.
cliff vesting financial
"The Company RSU award provided for cliff vesting on December 31, 2024"
automatic dividend reinvestment financial
"including shares received due to automatic dividend reinvestment, as of the date"

FAQ

What insider transaction did EBC’s CEO report on this Form 4?

Denis K. Sheahan reported converting 8,607 restricted stock units into 8,607 shares of Eastern Bankshares common stock on September 3, 2026, with part of the resulting shares used to cover exercise price or tax liability.

How many EBC shares were used to cover exercise price or taxes?

The filing shows that 4,162 shares of Eastern Bankshares common stock were delivered or withheld at $22.08 per share for payment of exercise price or tax liability related to the RSU conversion on September 3, 2026.

Does the EBC CEO still hold significant indirect common stock positions?

Yes. Denis K. Sheahan is reported as indirectly holding 269,662 shares of Eastern Bankshares common stock through a revocable trust, 33,305 shares through an IRA, and 902 shares through an ESOP as of the report date.

What ongoing RSU awards tied to EBC common stock does the CEO have?

The report lists several RSU awards, including tranches representing 17,907, 3,752, 34,544, 33,721, 42,221, 120,023 and 24,340 underlying shares of Eastern Bankshares common stock, each converting into common stock on a one-for-one basis upon vesting.

Were the EBC CEO’s transactions made under a Rule 10b5-1 trading plan?

No. The Form 4 indicates that the Rule 10b5-1 checkbox is not marked, and the footnotes do not state that these transactions were made pursuant to a Rule 10b5-1 trading plan.

What is the net buy or sell effect of the CEO’s EBC transactions?

The transaction summary shows a net effect of 0 shares classified as net bought or sold, reflecting one derivative exercise and an associated delivery or withholding of 4,162 shares for payment of exercise price or tax liability.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
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*
SHEAHAN DENIS K

(Last)(First)(Middle)
125 HIGH STREET

(Street)
BOSTON MASSACHUSETTS 02110

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Eastern Bankshares, Inc. [ EBC ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chief Executive Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/03/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock09/03/2026M8,607(2)A$08,607D
Common Stock09/03/2026F4,162D$22.084,445D
Common Stock269,662IBy Revocable Trust
Common Stock33,305IBy IRA
Common Stock902I(12)By ESOP
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units(1)(2) (3) (3)Common stock17,90717,907D
Restricted Stock Units(1)(2) (4) (4)Common stock3,7523,752D
Restricted Stock Units(1)(2) (5) (5)Common stock34,54434,544D
Restricted Stock Units(1)(2) (6) (6)Common stock33,72133,721D
Restricted Stock Units(1)(2) (7) (7)Common stock42,22142,221D
Restricted Stock Units(8)09/03/2026M8,607 (9) (9)Common stock8,607$08,608D
Restricted Stock Units(2) (10) (10)Common stock120,023120,023D
Restricted Stock Units(8) (11) (11)Common stock24,34024,340D
Explanation of Responses:
1. Eastern Bankshares, Inc. (the "Company") issued these time-based restricted stock units ("RSUs") as of July 12, 2024, when the Company completed a merger with Cambridge Bancorp ("Cambridge"). Pursuant to the terms of the Agreement and Plan of Merger, dated September 19, 2023, Cambridge RSUs and performance-based restricted stock units ("PRSUs") were assumed and converted to Company RSUs at an exchange ratio of 4.956 Company units for each Cambridge unit.
2. Restricted stock units convert into common stock on a one-for-one basis.
3. This award for 17,907 Company RSUs replaced an award of Cambridge RSUs granted to the reporting person on February 15, 2021, that vested in three equal annual installments beginning one year after the grant date. The reporting person elected to defer receipt of common stock issuable upon the vesting of these RSUs.
4. This award for 3,752 Company RSUs replaced an award of Cambridge RSUs granted to the reporting person on February 15, 2022, that provided for vesting in three equal annual installments beginning one year after the grant date. The reporting person elected to defer receipt of common stock issuable upon vesting except for shares withheld for tax obligations.
5. This award for 34,544 Company RSUs replaced an award of Cambridge RSUs granted to the reporting person on April 28, 2023, that provided for vesting in three equal annual installments beginning one year after the grant date. The reporting person elected to defer receipt of common stock issuable upon vesting except for shares withheld for tax obligations.
6. This award for 33,721 Company RSUs replaced an award of Cambridge PRSUs granted to the reporting person on February 15, 2022. The Company RSU award provided for cliff vesting on December 31, 2024. The reporting person elected to defer receipt of common stock issuable upon vesting except for shares withheld for tax obligations.
7. This award for 42,221 Company RSUs replaced an award of Cambridge PRSUs that Cambridge granted to the reporting person on April 28, 2023. The Company RSU award provided for cliff vesting on December 31, 2025. The reporting person elected to defer receipt of common stock issuable upon vesting except for shares withheld for tax obligations.
8. Each restricted stock unit represents a contingent right to receive one share of Company common stock on the applicable vesting date.
9. On September 3, 2024, the reporting person was granted 25,821 restricted stock units that vest in three equal annual installments beginning September 3, 2025, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date.
10. On March 3, 2025, the reporting person was granted 154,088 restricted stock units of which 24,365 vest in three equal annual installments beginning March 3, 2026 after market close, and 129,723 vest in five equal installments beginning on March 3, 2026, after market close, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date.
11. On March 2, 2026, the reporting person was granted 24,340 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.
12. Reflects the amount of shares beneficially owned, including shares received due to automatic dividend reinvestment, as of the date of this report.
/s/ Laura Vaughn Burek, by Power of Attorney09/04/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

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