LANCASTER INVESTMENT MANAGEMENT

PrivateCIK: 1630064

Location

LONDON, X0

KEATING RONALD C

→CORE NATURAL RESOURCES, INC.

May 1, 2026·May 1, 2026

1 txn

DOHENY EDWARD L II

→CORE NATURAL RESOURCES, INC.

May 1, 2026·May 1, 2026

1 txn

LANCASTER INVESTMENT MANAGEMENT

13F-HR

Holdings

Apr 20, 2026·Apr 20, 2026

KLEIN ROSEMARY L

→CORE NATURAL RESOURCES, INC.

Mar 20, 2026·Mar 20, 2026

2 txn

KLEIN ROSEMARY L

144

→CORE NATURAL RESOURCES, INC.

Mar 19, 2026·Mar 19, 2026

ROTHKA JOHN

→CORE NATURAL RESOURCES, INC.

Mar 19, 2026·Mar 19, 2026

1 txn

ROTHKA JOHN

144

→CORE NATURAL RESOURCES, INC.

Mar 17, 2026·Mar 17, 2026

-2

ROTHKA JOHN

→CORE NATURAL RESOURCES, INC.

Mar 11, 2026·Mar 11, 2026

1 txn

NAVARRE RICHARD A

→CORE NATURAL RESOURCES, INC.

Mar 11, 2026·Mar 11, 2026

1 txn

NAVARRE RICHARD A

144

→CORE NATURAL RESOURCES, INC.

Mar 10, 2026·Mar 10, 2026

ROTHKA JOHN

144

→CORE NATURAL RESOURCES, INC.

Mar 10, 2026·Mar 10, 2026

THAKKAR MITESHKUMAR

→CORE NATURAL RESOURCES, INC.

Feb 19, 2026·Feb 19, 2026

3 txn

KRIEGSHAUSER PATRICK A

→CORE NATURAL RESOURCES, INC.

Feb 19, 2026·Feb 19, 2026

1 txn

KOEPPEL HOLLY K

→CORE NATURAL RESOURCES, INC.

Feb 19, 2026·Feb 19, 2026

1 txn

KLEIN ROSEMARY L

→CORE NATURAL RESOURCES, INC.

Feb 19, 2026·Feb 19, 2026

3 txn

PLATT JOSEPH P JR

→CORE NATURAL RESOURCES, INC.

Feb 19, 2026·Feb 19, 2026

1 txn

SLONE DECK

→CORE NATURAL RESOURCES, INC.

Feb 19, 2026·Feb 19, 2026

3 txn

PERERA VALLI

→CORE NATURAL RESOURCES, INC.

Feb 19, 2026·Feb 19, 2026

1 txn

SCHULLER GEORGE JOHN JR

→CORE NATURAL RESOURCES, INC.

Feb 19, 2026·Feb 19, 2026

3 txn

NAVARRE RICHARD A

→CORE NATURAL RESOURCES, INC.

Feb 19, 2026·Feb 19, 2026

1 txn

SALVATORI KURT R.

→CORE NATURAL RESOURCES, INC.

Feb 19, 2026·Feb 19, 2026

3 txn

ROTHKA JOHN

→CORE NATURAL RESOURCES, INC.

Feb 19, 2026·Feb 19, 2026

2 txn

LANCASTER INVESTMENT MANAGEMENT

13F-HR

Holdings

Jan 12, 2026·Jan 12, 2026

LANG PAUL A

144

→CORE NATURAL RESOURCES, INC.

Dec 18, 2025·Dec 18, 2025

ROTHKA JOHN

→CORE NATURAL RESOURCES, INC.

Oct 10, 2025·Oct 10, 2025

2 txn

Page 1 of 10 · 233 total

Filer	Form	Target	Filed	Activity
KEATING RONALD CCIK · 1353838	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	May 1, 2026 May 1, 2026	1txn
DOHENY EDWARD L IICIK · 1363620	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	May 1, 2026 May 1, 2026	1txn
LANCASTER INVESTMENT MANAGEMENTCIK · 1630064	13F-HR Holdings	—	Apr 20, 2026 Apr 20, 2026	—
KLEIN ROSEMARY LCIK · 1310202	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	Mar 20, 2026 Mar 20, 2026	2txn
KLEIN ROSEMARY LCIK · 1310202	144 Sale	CORE NATURAL RESOURCES, INC.CIK · 1710366	Mar 19, 2026 Mar 19, 2026	—
ROTHKA JOHNCIK · 1713960	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	Mar 19, 2026 Mar 19, 2026	1txn
ROTHKA JOHNCIK · 1713960	144 Sale	CORE NATURAL RESOURCES, INC.CIK · 1710366	Mar 17, 2026 Mar 17, 2026	—
ROTHKA JOHNCIK · 1713960	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	Mar 11, 2026 Mar 11, 2026	1txn
NAVARRE RICHARD ACIK · 1213886	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	Mar 11, 2026 Mar 11, 2026	1txn
NAVARRE RICHARD ACIK · 1213886	144 Sale	CORE NATURAL RESOURCES, INC.CIK · 1710366	Mar 10, 2026 Mar 10, 2026	—
ROTHKA JOHNCIK · 1713960	144 Sale	CORE NATURAL RESOURCES, INC.CIK · 1710366	Mar 10, 2026 Mar 10, 2026	—
THAKKAR MITESHKUMARCIK · 1799593	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	Feb 19, 2026 Feb 19, 2026	3txn
KRIEGSHAUSER PATRICK ACIK · 1046085	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	Feb 19, 2026 Feb 19, 2026	1txn
KOEPPEL HOLLY KCIK · 1210399	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	Feb 19, 2026 Feb 19, 2026	1txn
KLEIN ROSEMARY LCIK · 1310202	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	Feb 19, 2026 Feb 19, 2026	3txn
PLATT JOSEPH P JRCIK · 1399967	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	Feb 19, 2026 Feb 19, 2026	1txn
SLONE DECKCIK · 1335025	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	Feb 19, 2026 Feb 19, 2026	3txn
PERERA VALLICIK · 1970886	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	Feb 19, 2026 Feb 19, 2026	1txn
SCHULLER GEORGE JOHN JRCIK · 1702125	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	Feb 19, 2026 Feb 19, 2026	3txn
NAVARRE RICHARD ACIK · 1213886	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	Feb 19, 2026 Feb 19, 2026	1txn
SALVATORI KURT R.CIK · 1717472	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	Feb 19, 2026 Feb 19, 2026	3txn
ROTHKA JOHNCIK · 1713960	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	Feb 19, 2026 Feb 19, 2026	2txn
LANCASTER INVESTMENT MANAGEMENTCIK · 1630064	13F-HR Holdings	—	Jan 12, 2026 Jan 12, 2026	—
LANG PAUL ACIK · 1382977	144 Sale	CORE NATURAL RESOURCES, INC.CIK · 1710366	Dec 18, 2025 Dec 18, 2025	—
ROTHKA JOHNCIK · 1713960	4 Trade	CORE NATURAL RESOURCES, INC.CIK · 1710366	Oct 10, 2025 Oct 10, 2025	2txn

Page 1 of 10 · 233 total