COLUMBIA BANKING SYSTEM, INC.

PublicCIK: 887343

COLBNASDAQ

Location

TACOMA, WA

MACHUCA LUIS

→COLUMBIA BANKING SYSTEM, INC.

Jun 16, 2026·5d ago

1 txn

MOORE DEVINE DAVID

→COLUMBIA BANKING SYSTEM, INC.

Jun 10, 2026·Jun 10, 2026

2 txn

MOORE DEVINE DAVID

144

→COLUMBIA BANKING SYSTEM, INC.

Jun 8, 2026·Jun 8, 2026

VARNADO ANDDRIA

→COLUMBIA BANKING SYSTEM, INC.

May 18, 2026·May 18, 2026

1 txn

TERRY HILLIARD C. III

→COLUMBIA BANKING SYSTEM, INC.

May 18, 2026·May 18, 2026

1 txn

STUDENMUND JAYNIE M

→COLUMBIA BANKING SYSTEM, INC.

May 18, 2026·May 18, 2026

2 txn

SEATON ELIZABETH WHITEHEAD

→COLUMBIA BANKING SYSTEM, INC.

May 18, 2026·May 18, 2026

2 txn

SCHULTZ JOHN F

→COLUMBIA BANKING SYSTEM, INC.

May 18, 2026·May 18, 2026

1 txn

MITCHELL M CHRISTIAN

→COLUMBIA BANKING SYSTEM, INC.

May 18, 2026·May 18, 2026

1 txn

MACHUCA LUIS

→COLUMBIA BANKING SYSTEM, INC.

May 18, 2026·May 18, 2026

1 txn

LUND RANDAL LEE

→COLUMBIA BANKING SYSTEM, INC.

May 18, 2026·May 18, 2026

2 txn

FINKELSTEIN MARK A

→COLUMBIA BANKING SYSTEM, INC.

May 18, 2026·May 18, 2026

1 txn

FORREST ERIC

→COLUMBIA BANKING SYSTEM, INC.

May 18, 2026·May 18, 2026

1 txn

VARNADO ANDDRIA

→RED ROBIN GOURMET BURGERS INC

May 15, 2026·May 15, 2026

1 txn

LAKELY BROCK

→COLUMBIA BANKING SYSTEM, INC.

Apr 16, 2026·Apr 16, 2026

1 txn

MITCHELL M CHRISTIAN

→PARSONS CORP

Apr 16, 2026·Apr 16, 2026

1 txn

MITCHELL M CHRISTIAN

→TPG MORTGAGE INVESTMENT TRUST, INC.

Apr 2, 2026·Apr 2, 2026

1 txn

BARUFFI KUMI YAMAMOTO

→COLUMBIA BANKING SYSTEM, INC.

Mar 17, 2026·Mar 17, 2026

3 txn

OGNALL ANDREW H

→COLUMBIA BANKING SYSTEM, INC.

Mar 17, 2026·Mar 17, 2026

4 txn

STEIN CLINT

→COLUMBIA BANKING SYSTEM, INC.

Mar 17, 2026·Mar 17, 2026

3 txn

MACHUCA LUIS

→COLUMBIA BANKING SYSTEM, INC.

Mar 17, 2026·Mar 17, 2026

1 txn

DEER AARON JAMES

→COLUMBIA BANKING SYSTEM, INC.

Mar 17, 2026·Mar 17, 2026

3 txn

MOORE DEVINE DAVID

→COLUMBIA BANKING SYSTEM, INC.

Mar 17, 2026·Mar 17, 2026

3 txn

MERRYWELL CHRISTOPHER

→COLUMBIA BANKING SYSTEM, INC.

Mar 17, 2026·Mar 17, 2026

3 txn

NIXON TORRAN B

→COLUMBIA BANKING SYSTEM, INC.

Mar 17, 2026·Mar 17, 2026

5 txn

Page 1 of 36 · 886 total

Filer	Form	Target	Filed	Activity
MACHUCA LUISCIK · 1133099	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	Jun 16, 2026 5d ago	1txn
MOORE DEVINE DAVIDCIK · 1798077	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	Jun 10, 2026 Jun 10, 2026	2txn
MOORE DEVINE DAVIDCIK · 1798077	144 Sale	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	Jun 8, 2026 Jun 8, 2026	—
VARNADO ANDDRIACIK · 1757895	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	May 18, 2026 May 18, 2026	1txn
TERRY HILLIARD C. IIICIK · 1481735	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	May 18, 2026 May 18, 2026	1txn
STUDENMUND JAYNIE MCIK · 1222385	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	May 18, 2026 May 18, 2026	2txn
SEATON ELIZABETH WHITEHEADCIK · 1610217	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	May 18, 2026 May 18, 2026	2txn
SCHULTZ JOHN FCIK · 1548933	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	May 18, 2026 May 18, 2026	1txn
MITCHELL M CHRISTIANCIK · 1284574	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	May 18, 2026 May 18, 2026	1txn
MACHUCA LUISCIK · 1133099	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	May 18, 2026 May 18, 2026	1txn
LUND RANDAL LEECIK · 1713258	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	May 18, 2026 May 18, 2026	2txn
FINKELSTEIN MARK ACIK · 1537873	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	May 18, 2026 May 18, 2026	1txn
FORREST ERICCIK · 1610387	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	May 18, 2026 May 18, 2026	1txn
VARNADO ANDDRIACIK · 1757895	4 Trade	RED ROBIN GOURMET BURGERS INCCIK · 1171759	May 15, 2026 May 15, 2026	1txn
LAKELY BROCKCIK · 1740374	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	Apr 16, 2026 Apr 16, 2026	1txn
MITCHELL M CHRISTIANCIK · 1284574	4 Trade	PARSONS CORPCIK · 275880	Apr 16, 2026 Apr 16, 2026	1txn
MITCHELL M CHRISTIANCIK · 1284574	4 Trade	TPG MORTGAGE INVESTMENT TRUST, INC.CIK · 1514281	Apr 2, 2026 Apr 2, 2026	1txn
BARUFFI KUMI YAMAMOTOCIK · 1619728	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	Mar 17, 2026 Mar 17, 2026	3txn
OGNALL ANDREW HCIK · 1606248	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	Mar 17, 2026 Mar 17, 2026	4txn
STEIN CLINTCIK · 1550429	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	Mar 17, 2026 Mar 17, 2026	3txn
MACHUCA LUISCIK · 1133099	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	Mar 17, 2026 Mar 17, 2026	1txn
DEER AARON JAMESCIK · 1810107	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	Mar 17, 2026 Mar 17, 2026	3txn
MOORE DEVINE DAVIDCIK · 1798077	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	Mar 17, 2026 Mar 17, 2026	3txn
MERRYWELL CHRISTOPHERCIK · 1796657	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	Mar 17, 2026 Mar 17, 2026	3txn
NIXON TORRAN BCIK · 1689701	4 Trade	COLUMBIA BANKING SYSTEM, INC.CIK · 887343	Mar 17, 2026 Mar 17, 2026	5txn

Page 1 of 36 · 886 total