SHEAHAN DENIS K

PrivateCIK: 1207221

Location

BURLINGTON, MA

SHEAHAN DENIS K (Chief Executive Officer) exercised options at EASTERN BANKSHARES, INC.

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 1 exercise

SHEAHAN DENIS K

Filed: 3/5/2026ACC: 0001193125-26-094389

InsiderSHEAHAN DENIS KCIK 1207221

→

IssuerEASTERN BANKSHARES, INC.CIK 1810546

DirectorOfficer· Chief Executive Officer

Since Mar 2026

-15.18K

Net shares

Net seller

$295.3K

Total sold

0

Open market trades

0B · 0S

3

Total transactions

34.06K acquired · 49.25K disposed

Non-Derivative Transactions2

Common Stock

Direct

M · Option Exercise

Shares

+34.06K

Price / share

—

Trade value

—

% of position

New position

3/3/2026

0.00→34.06K

Common Stock

Direct

F · Tax Withholding

Shares

−15.18K

Price / share

$19.45

Trade value

$295.33K

% of position

44.6%

3/3/2026

34.06K→18.88K

Total

Net shares

+18.88K

Net value

-$295.33K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	3/3/2026	M · Option Exercise	+34.06K	—	—	New position	0.00	34.06K
Common Stock Direct	3/3/2026	F · Tax Withholding	−15.18K	$19.45	$295.33K	44.6%	34.06K	18.88K
Total			+18.88K		-$295.33K

Derivative Transactions1

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common stock

34.06K shares

Shares

−34.06K

Strike price

Held after

120.02K

Exercisable

—

3/3/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Restricted Stock Units Direct	Common stock34.06K shares	3/3/2026	M · Option Exercise	−34.06K		—	120.02K

Non-Derivative Holdings (Post-Transaction)3

Common Stock

Indirect

Shares owned889.00

Common Stock

Indirect

Shares owned250.78K

Common Stock

Indirect

Shares owned33.30K

Total

284.98K indirect284.98K

Security Title	Shares Owned	Ownership Type
Common Stock	889.00	Indirect
Common Stock	250.78K	Indirect
Common Stock	33.30K	Indirect
Total	284.98K	284.98K indirect

Derivative Holdings (Post-Transaction)7

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

24.34K

Shares owned

24.34K

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

17.21K

Shares owned

17.21K

Exercise price

Expiration

—

Exercise window

—

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

33.72K

Shares owned

33.72K

Exercise price

Expiration

—

Exercise window

—

Total

Underlying

166.51K

Owned

166.51K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Restricted Stock Units Direct	Common stock		—	—	42.22K	42.22K
Restricted Stock Units Direct	Common stock		—	—	24.34K	24.34K
Restricted Stock Units Direct	Common stock		—	—	3.23K	3.23K
Restricted Stock Units Direct	Common stock		—	—	17.21K	17.21K
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		—	—	33.72K	33.72K
Total					166.51K	166.51K

SHEAHAN DENIS K — Insider Transaction (Form 4) Filed Mar 5, 2026 | Finecho