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COLUMBIA BANKING SYSTEM, INC.

COLB Net buying
CIK 0000887343 #1005 in the set updated 19 Sep 2026
Bought (120 mo)
$2.18M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$1.77M
$244.39K on a plan · $30.11K straight out of an exercise
Sold at will
$1.50M
24 of 29 sales
Net
+$410.64K
+$685.14K against sales at will

By person

47 insiders · 117 transactions
3.0×

Clint E. Stein holds only 3.0 times base salary in stock. $3.85M of shares against $1.25M in salary for 2025.

Salary from the company's own proxy. The shares are what Clint E. Stein last reported holding, valued at $25.37, the price Common Stock was last bought or sold at on the open market here, on 30 Jun 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
HULBERT TOM
Director
$467.62K (15)
+$467.62K
69,990
0.0247%
$1.78M
+59.0%
GARDNER STEVEN R
Director
$403.93K (1)
−$403.93K
572,947
0.2025%
$14.54M
Deer Aaron James
EVP Chief Strategy/Innov Offcr
$325.35K (8)
+$325.35K
42,761
0.0151%
$1.08M
+4,276,000%
McDonald Andy
EVP Chief Credit Officer
$14.99K (2)
$334.83K (3)
−$319.83K
49,686
0.0176%
$1.26M
+64.4%
Stein Clint
Chair, CEO, President
$225.12K (10)
$447.46K (10)
−$222.34K
151,584
0.0536%
$3.85M
+840.1%
EERKES CRAIG D
Director
$194.12K (8)
+$194.12K
35,346
0.0125%
$896.73K
+433.0%
SCHULTZ JOHN F
Director
$174.56K (1)
+$174.56K
50,384
0.0178%
$1.28M
+76.0%
Nixon Torran B
Senior Executive VP
$74.80K (1)
$244.39K (3) scheduled
−$169.59K
101,240
0.0358%
$2.57M
−24.5%
Moore Devine David
EVP Chief Marketing Officer
$115.29K (2)
−$115.29K
18,636
0.0066%
$472.80K
+183.1%
Merrywell Christopher
Senior Executive VP
$105.45K (1)
+$105.45K
44,067
0.0156%
$1.12M
+374.2%
MACHUCA LUIS
Director
$100.64K (1)
+$100.64K
29,953
0.0106%
$759.91K
+237.5%
Forrest Eric
Director
$99.24K (1)
+$99.24K
36,351
0.0128%
$922.22K
+719.1%
BARUFFI KUMI YAMAMOTO
EVP General Counsel, Corp Sec
$102.20K (12)
$24.58K (1) scheduled
+$77.63K
53,715
0.0190%
$1.36M
+729.7%
Finkelstein Mark A
Director
$74.97K (1)
+$74.97K
35,554
0.0126%
$902.00K
+760.5%
Ray Barry
SVP & CAO
$73.82K (2)
−$73.82K
13,108
0.0046%
$332.55K
+18.1%
Lawson David C
EVP Chief H.R. Officer
$52.53K (11)
$122.43K (6)
−$69.90K
28,152
0.0100%
$714.22K
+253.4%
FARNSWORTH RON L
Chief Financial Officer
$51.78K (1)
+$51.78K
141,162
0.0499%
$3.58M
−13.3%
Numata S Mae Fujita
Director
$50.61K (3)
+$50.61K
37,113
0.0131%
$941.56K
+242.6%
SEATON ELIZABETH WHITEHEAD
Director
$49.62K (1)
+$49.62K
3,949
0.0014%
$100.19K
Lund Randal Lee
Director
$19.29K (1)
+$19.29K
27,663
0.0098%
$701.81K
Lakely Brock
EVP, Chief Accounting Officer
$5.53K (1) scheduled
−$5.53K
10,708
0.0038%
$271.66K
+65.7%
O'HAVER CORT L
Executive Chairman
390,824
0.1381%
$9.92M
+18.9%
OGNALL ANDREW H
EVP Chief Risk Officer
74,132
0.0262%
$1.88M
−5.6%
Terry Hilliard C. III
Director
55,514
0.0196%
$1.41M
+41.2%
POPE MARIA M
Director
47,569
0.0168%
$1.21M
+27.1%
Elsaesser Ford
Director
46,586
0.0165%
$1.18M
+25.6%
Burns Sheri
Chief Human Resources Officer
42,488
0.0150%
$1.08M
+5.2%
MITCHELL M CHRISTIAN
Director
41,909
0.0148%
$1.06M
LAGOMARSINO SIMONE
Director
35,608
0.0126%
$903.37K
+8.1%
Dow Lisa
Chief Risk Officer
35,110
0.0124%
$890.74K
+257.4%
Namdar Frank
EVP Chief Credit Officer
31,923
0.0113%
$809.89K
+0.9%
Varnado Anddria
Director
30,894
0.0109%
$783.78K
+110.1%
WEYERHAEUSER WILLIAM T
Director
30,188
0.0107%
$765.87K
+13.9%
Eid Eric J
EVP Chief Digital & Tech Off
29,243
0.0103%
$741.89K
+41.3%
White Lisa M
PAO & Corporate Controller
29,045
0.0103%
$736.87K
+46.3%
Robbins Hadley S
PRESIDENT & CEO
26,763
0.0095%
$678.98K
+131.4%
STUDENMUND JAYNIE M
Director
25,650
0.0091%
$650.74K
Lantow Michelle
Director
23,140
0.0082%
$587.06K
+101.2%
Anderson Drew K
EVP Chief Admin Officer
21,969
0.0078%
$557.35K
+8.4%
FOLSOM JOHN
Director
13,691
0.0048%
$347.34K
+36.9%
Dietzler David A
Director
12,303
0.0043%
$312.13K
+42.9%
Terrano Janine
Director
10,474
0.0037%
$265.73K
FOWLER PEGGY Y
Director
8,211
0.0029%
$208.31K
Sigrist Greg
EVP & CFO
8,126
0.0029%
$206.16K
Schrag Laura Alvarez
Director
4,236
0.0015%
$107.47K
Mack-Askew Tracy
Director
4,236
0.0015%
$107.47K
Giem Judi
EVP CHRO
1,750
0.0006%
$44.40K
Insider
Date
Role
Action
Shares
Price
Amount
Deer Aaron James
30 Jun 2026
EVP Chief Strategy/Innov Offcr
Buy
886
$25.37
$22.48K
SEATON ELIZABETH WHITEHEAD
6 Feb 2024
Director
Buy
2,685
$18.48
$49.62K
Deer Aaron James
1 Feb 2024
Chief Strategy/Innovation Offc
Buy
2,000
$19.32
$38.65K
Lund Randal Lee
1 Feb 2024
Director
Buy
1,000
$19.29
$19.29K
Nixon Torran B
31 Jan 2024
Senior Executive VP
Buy
3,650
$20.49
$74.80K
MACHUCA LUIS
31 Jan 2024
Director
Buy
4,889
$20.58
$100.64K
Finkelstein Mark A
30 Jan 2024
Director
Buy
3,592
$20.87
$74.97K
Numata S Mae Fujita
30 Jan 2024
Director
Buy
400
$21.09
$8.43K
Numata S Mae Fujita
30 Jan 2024
Director
Buy
1,000
$21.09
$21.09K
Numata S Mae Fujita
30 Jan 2024
Director
Buy
1,000
$21.09
$21.09K
Stein Clint
30 Jan 2024
President, CEO
Buy
100
$20.96
$2.10K
Stein Clint
30 Jan 2024
President, CEO
Buy
7,890
$20.96
$165.37K
Stein Clint
30 Jan 2024
President, CEO
Buy
1,510
$20.96
$31.64K
Merrywell Christopher
30 Jan 2024
Senior Executive VP
Buy
5,000
$21.09
$105.45K
EERKES CRAIG D
30 Jan 2024
Director
Buy
3
$20.93
$62.78
EERKES CRAIG D
30 Jan 2024
Director
Buy
38
$20.88
$793.44
EERKES CRAIG D
30 Jan 2024
Director
Buy
100
$20.88
$2.09K
EERKES CRAIG D
30 Jan 2024
Director
Buy
2,000
$20.82
$41.64K
SCHULTZ JOHN F
29 Jan 2024
Director
Buy
8,559
$20.40
$174.56K
FARNSWORTH RON L
29 Jan 2024
Chief Financial Officer
Buy
2,500
$20.71
$51.78K
Forrest Eric
29 Jan 2024
Director
Buy
4,750
$20.89
$99.24K
Deer Aaron James
30 Jun 2023
Chief Strategy/Innovation Offc
Buy
854
$18.25
$15.59K
BARUFFI KUMI YAMAMOTO
30 Jun 2023
General Counsel, Corporate Sec
Buy
854
$18.25
$15.59K
EERKES CRAIG D
24 May 2023
Director
Buy
2,381
$21.01
$50.02K
Lawson David C
30 Dec 2022
EVP Chief H.R. Officer
Buy
264
$26.84
$7.09K
BARUFFI KUMI YAMAMOTO
30 Dec 2022
EVP General Counsel
Buy
232
$26.84
$6.23K
Deer Aaron James
30 Jun 2022
EVP Chief Financial Officer
Buy
748
$25.79
$19.29K
BARUFFI KUMI YAMAMOTO
30 Jun 2022
EVP and General Counsel
Buy
446
$25.79
$11.50K
Lawson David C
30 Jun 2022
EVP & Chief H.R. Officer
Buy
271
$25.79
$6.99K
EERKES CRAIG D
10 Jun 2022
Director
Buy
1,694
$28.52
$48.31K
Deer Aaron James
2 May 2022
EVP Chief Financial Officer
Buy
3,000
$28.00
$84.00K
Deer Aaron James
24 Feb 2022
EVP Chief Financial Officer
Buy
3,000
$33.45
$100.36K
BARUFFI KUMI YAMAMOTO
4 Jan 2022
EVP and General Counsel
Buy
186
$29.45
$5.48K
Lawson David C
4 Jan 2022
EVP & Chief H.R. Officer
Buy
116
$29.45
$3.42K
HULBERT TOM
26 Nov 2021
Director
Buy
3,400
$32.24
$109.62K
HULBERT TOM
26 Nov 2021
Director
Buy
1,206
$32.23
$38.87K
HULBERT TOM
26 Nov 2021
Director
Buy
696
$32.22
$22.43K
HULBERT TOM
26 Nov 2021
Director
Buy
796
$32.21
$25.64K
HULBERT TOM
26 Nov 2021
Director
Buy
2,366
$32.20
$76.19K
HULBERT TOM
26 Nov 2021
Director
Buy
133
$32.19
$4.28K
HULBERT TOM
26 Nov 2021
Director
Buy
1,153
$32.18
$37.10K
HULBERT TOM
26 Nov 2021
Director
Buy
100
$32.17
$3.22K
HULBERT TOM
26 Nov 2021
Director
Buy
589
$32.16
$18.94K
HULBERT TOM
26 Nov 2021
Director
Buy
472
$32.15
$15.17K
HULBERT TOM
26 Nov 2021
Director
Buy
100
$32.14
$3.21K
HULBERT TOM
26 Nov 2021
Director
Buy
62
$32.13
$1.99K
BARUFFI KUMI YAMAMOTO
6 Jul 2021
EVP and General Counsel
Buy
304
$31.64
$9.62K
Deer Aaron James
6 Jul 2021
EVP Chief Financial Officer
Buy
711
$31.64
$22.50K
Lawson David C
6 Jul 2021
EVP & Chief H.R. Officer
Buy
190
$31.64
$6.01K
Deer Aaron James
15 Feb 2021
EVP Chief Financial Officer
Buy
935
$24.06
$22.50K
BARUFFI KUMI YAMAMOTO
7 Jan 2021
EVP and General Counsel
Buy
219
$24.06
$5.27K
Lawson David C
7 Jan 2021
EVP & Chief H.R. Officer
Buy
137
$24.06
$3.30K
Stein Clint
7 Jan 2021
PRESIDENT, CEO & DIRECTOR
Buy
179
$24.06
$4.31K
Lawson David C
2 Jul 2020
EVP & Chief H.R. Officer
Buy
220
$25.51
$5.61K
Stein Clint
2 Jul 2020
PRESIDENT, CEO & DIRECTOR
Buy
250
$25.51
$6.38K
BARUFFI KUMI YAMAMOTO
2 Jul 2020
EVP and General Counsel
Buy
337
$25.51
$8.60K
HULBERT TOM
12 May 2020
Director
Buy
4,000
$21.97
$87.88K
HULBERT TOM
11 May 2020
Director
Buy
175
$23.09
$4.04K
HULBERT TOM
11 May 2020
Director
Buy
825
$23.08
$19.04K
EERKES CRAIG D
7 May 2020
Director
Buy
1,000
$22.93
$22.93K
EERKES CRAIG D
10 Mar 2020
Director
Buy
1,000
$28.27
$28.27K
BARUFFI KUMI YAMAMOTO
3 Jan 2020
EVP and General Counsel
Buy
137
$32.81
$4.49K
Lawson David C
3 Jan 2020
EVP & Chief H.R. Officer
Buy
92
$32.81
$3.02K
Stein Clint
3 Jan 2020
PRESIDENT, CEO & DIRECTOR
Buy
68
$32.81
$2.23K
BARUFFI KUMI YAMAMOTO
1 Jul 2019
EVP and General Counsel
Buy
259
$32.56
$8.43K
Lawson David C
1 Jul 2019
EVP & Chief H.R. Officer
Buy
173
$32.56
$5.63K
Stein Clint
1 Jul 2019
EVP, COO
Buy
143
$32.56
$4.66K
BARUFFI KUMI YAMAMOTO
2 Jan 2019
EVP and General Counsel
Buy
210
$32.66
$6.86K
Lawson David C
2 Jan 2019
EVP & Chief H.R. Officer
Buy
89
$32.66
$2.91K
Stein Clint
2 Jan 2019
EVP, COO
Buy
66
$32.66
$2.16K
BARUFFI KUMI YAMAMOTO
5 Jul 2018
EVP and General Counsel
Buy
374
$36.81
$13.77K
Lawson David C
5 Jul 2018
EVP & Chief H.R. Officer
Buy
157
$36.81
$5.78K
McDonald Andy
5 Jul 2018
EVP & CCO
Buy
276
$36.81
$10.16K
Stein Clint
5 Jul 2018
EVP, COO & CFO
Buy
117
$36.81
$4.31K
McDonald Andy
8 Jan 2018
EVP & CCO
Buy
132
$36.63
$4.84K
Stein Clint
8 Jan 2018
EVP, COO & CFO
Buy
54
$36.63
$1.98K
BARUFFI KUMI YAMAMOTO
8 Jan 2018
EVP and General Counsel
Buy
174
$36.63
$6.37K
Lawson David C
8 Jan 2018
EVP & Chief H.R. Officer
Buy
76
$36.63
$2.78K

What was left out

Form 4 filings counted 660
Amendments (4/A) skipped 23
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 3
Sales straight out of an exercise 2
Sales at will 24
Transactions with no price 0
Shares from compensation/vesting 2,552,144
Sales filed before the plan box existed 21
History held since 3 Oct 2016