SHEAHAN DENIS K (Chief Executive Officer) sold 0.0% of their position (1.00 shares) of EASTERN BANKSHARES, INC. on the open market

Open‑market sale worth $13.85 — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale

SHEAHAN DENIS K

Filed: 3/3/2026ACC: 0001193125-26-088960

InsiderSHEAHAN DENIS KCIK 1207221

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IssuerEASTERN BANKSHARES, INC.CIK 1810546

DirectorOfficer· Chief Executive Officer

Since Mar 2026

+24.34K

Net shares

Net buyer

$13.85

Total sold

Open market trades

0B · 1S

Total transactions

24.34K acquired · 1.00 disposed

Non-Derivative Transactions1

Common Stock

Indirect

S · Sale

−1.00

Price / share

$13.85

Trade value

$13.85

% of position

0.0%

9/16/2025

33.31K→33.30K

Total

Net shares

−1.00

Net value

-$13.85

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Indirect	9/16/2025	S · Sale	−1.00	$13.85	$13.85	0.0%	33.31K	33.30K
Total			−1.00		-$13.85

Derivative Transactions1

Restricted Stock Units

Direct

A · Award

Converts to

Common stock

24.34K shares

+24.34K

Strike price

Held after

24.34K

Exercisable

—

3/2/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Restricted Stock Units Direct	Common stock24.34K shares	3/2/2026	A · Award	+24.34K		—	24.34K

Non-Derivative Holdings (Post-Transaction)2

Common Stock

Indirect

Shares owned889.00

Common Stock

Indirect

Shares owned250.78K

Total

251.67K indirect251.67K

Security Title	Shares Owned	Ownership Type
Common Stock	889.00	Indirect
Common Stock	250.78K	Indirect
Total	251.67K	251.67K indirect

Derivative Holdings (Post-Transaction)7

Restricted Stock Units

Direct

Underlying security

Common stock

Underlying shares

11.24K

Shares owned

11.24K

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Common stock

Underlying shares

34.54K

Shares owned

34.54K

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Common stock

Underlying shares

3.23K

Shares owned

3.23K

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Common stock

Underlying shares

42.22K

Shares owned

42.22K

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Common stock

Underlying shares

33.72K

Shares owned

33.72K

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Common stock

Underlying shares

25.82K

Shares owned

25.82K

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Common stock

Underlying shares

154.09K

Shares owned

154.09K

Exercise price

Expiration

—

Exercise window

—

Total

Underlying

304.87K

Owned

304.87K

Security	Underlying	Exercise Window	Expiration	Underlying Shares	Shares Owned
Restricted Stock Units Direct	Common stock	—	—	11.24K	11.24K
Restricted Stock Units Direct	Common stock	—	—	34.54K	34.54K
Restricted Stock Units Direct	Common stock	—	—	3.23K	3.23K
Restricted Stock Units Direct	Common stock	—	—	42.22K	42.22K
Restricted Stock Units Direct	Common stock	—	—	33.72K	33.72K
Restricted Stock Units Direct	Common stock	—	—	25.82K	25.82K
Restricted Stock Units Direct	Common stock	—	—	154.09K	154.09K
Total				304.87K	304.87K