David Andrew Ahlquist - 01 Mar 2026 Form 4 Insider Report for Eastern Bankshares, Inc. (EBC)

Role: SVP, Chief Accounting Officer
Signature: /s/ Kathleen R. Henry, by Power of Attorney
Issuer symbol: EBC
Transactions as of: 01 Mar 2026
Net transactions value: -$24,763
Form type: 4
Filing time: 03 Mar 2026, 17:04:42 UTC
Previous filing: 05 Feb 2026
Next filing: 05 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Ahlquist David Andrew	SVP, Chief Accounting Officer	125 HIGH STREET, BOSTON	/s/ Kathleen R. Henry, by Power of Attorney	03 Mar 2026	0001825434

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	EBC	Common Stock	Options Exercise	$0	+3,653	+38%	$0.000000	13,171	01 Mar 2026	Direct	F1
transaction	EBC	Common Stock	Tax liability	$24,763	-1,266	-9.6%	$19.56	11,905	01 Mar 2026	Direct
holding	EBC	Common Stock						22,682	01 Mar 2026	By 401(k)	F2
holding	EBC	Common Stock						4,921	01 Mar 2026	By ESOP	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	EBC	Restricted Stock Units	Options Exercise	$0	-1,457	-100%	$0.000000	0	01 Mar 2026	Common stock	1,457		Direct	F1, F4
transaction	EBC	Restricted Stock Units	Options Exercise	$0	-2,196	-50%	$0.000000	2,197	01 Mar 2026	Common stock	2,196		Direct	F1, F5
transaction	EBC	Restricted Stock Units	Award	$0	+4,540		$0.000000	4,540	02 Mar 2026	Common stock	4,540		Direct	F3, F6
holding	EBC	Restricted Stock Units						4,903	01 Mar 2026	Common stock	4,903		Direct	F1, F6

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Restricted stock units convert into common stock on a one-for-one basis.
F2	Reflects the amount of shares beneficially owned, including shares received due to automatic dividend reinvestment, as of the date of this report.
F3	Each restricted stock unit represents a contingent right to receive one share of EBC common stock on the applicable vesting date.
F4	On March 1, 2023, the reporting person was granted 4,368 restricted stock units that vested in three equal annual installments beginning March 1, 2024, subject to continued service.
F5	On March 1, 2024, the reporting person was granted 6,588 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.
F6	On March 2, 2026, the reporting person was granted 4,540 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.