LUCAS STEPHEN G (VP, Culture and Engagement) received a stock award from KOPPERS HOLDINGS INC.

Compensation award — not an open‑market transaction. Less informative as a directional signal.

A · 1 award

LUCAS STEPHEN G

Filed: 1/6/2026ACC: 0001919175-26-000002

InsiderLUCAS STEPHEN GCIK 1919175

→

IssuerKOPPERS HOLDINGS INC.CIK 1315257

Officer· VP, Culture and Engagement

Since Apr 2022

+3.87K

Net shares

Net buyer

$118.9K

Total sold

Open market trades

0B · 0S

Total transactions

11.86K acquired · 7.99K disposed

Non-Derivative Transactions4

Common Stock

Direct

A · Award

+6.69K

Price / share

—

Trade value

—

% of position

24.9%

1/5/2026

26.91K→33.60K

Common Stock

Direct

M · Option Exercise

+3.42K

Price / share

—

Trade value

—

% of position

10.2%

1/5/2026

33.60K→37.02K

Common Stock

Direct

M · Option Exercise

+156.00

Price / share

—

Trade value

—

% of position

0.4%

1/5/2026

37.02K→37.18K

Common Stock

Direct

F · Tax Withholding

−4.42K

Price / share

$26.93

Trade value

$118.95K

% of position

11.9%

1/5/2026

37.18K→32.76K

Total

Net shares

+5.85K

Net value

-$118.95K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	1/5/2026	A · Award	+6.69K	—	—	24.9%	26.91K	33.60K
Common Stock Direct	1/5/2026	M · Option Exercise	+3.42K	—	—	10.2%	33.60K	37.02K
Common Stock Direct	1/5/2026	M · Option Exercise	+156.00	—	—	0.4%	37.02K	37.18K
Common Stock Direct	1/5/2026	F · Tax Withholding	−4.42K	$26.93	$118.95K	11.9%	37.18K	32.76K
Total			+5.85K		-$118.95K

Derivative Transactions5

Restricted Stock Units

Direct

A · Award

Converts to

Common Stock

846.00 shares

+846.00

Strike price

Held after

3.42K

Exercisable

—

1/2/2026

Restricted Stock Units

Direct

A · Award

Converts to

Common Stock

722.00 shares

+722.00

Strike price

Held after

722.00

Exercisable

—

1/2/2026

Dividend Equivalent Rights

Direct

A · Award

Converts to

Common Stock

24.00 shares

+24.00

Strike price

Held after

258.00

Exercisable

—

1/2/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

3.42K shares

−3.42K

Strike price

Held after

0.00

Exercisable

—

1/5/2026

Dividend Equivalent Rights

Direct

M · Option Exercise

Converts to

Common Stock

156.00 shares

−156.00

Strike price

Held after

102.00

Exercisable

—

1/5/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Restricted Stock Units Direct	Common Stock846.00 shares	1/2/2026	A · Award	+846.00	—	3.42K
Restricted Stock Units Direct	Common Stock722.00 shares	1/2/2026	A · Award	+722.00	—	722.00
Dividend Equivalent Rights Direct	Common Stock24.00 shares	1/2/2026	A · Award	+24.00	—	258.00
Restricted Stock Units Direct	Common Stock3.42K shares	1/5/2026	M · Option Exercise	−3.42K	—	0.00
Dividend Equivalent Rights Direct	Common Stock156.00 shares	1/5/2026	M · Option Exercise	−156.00	—	102.00