United States

Columbia Banking System Inc (COLB)

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Over the past 90 days, Columbia Banking System Inc. saw a net insider selling value of approximately $228,791. While EVP Aaron James Deer purchased shares in late June, this was offset by significant sales from other executives. The stock has performed strongly, currently trading near its 52-week high following a positive earnings report in April.
Ticker: COLB Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Columbia Banking System Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Trades
Buy 30 Jun 2026
Value US$1,467,161.95 | Price 112.04 | Shares 43,762 (+27.6%)
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-07-02 2026-06-30 B Purchase
2.8
Deer Aaron James

EVP Chief Strategy/Innov Offcr

Officer
43,762 +27.6%
112.04
US$1,467,162 		43,762 +27.6% 112.04 US$1,467,162
2026-06-10 2026-06-08 S Sale
Moore Devine David

EVP Chief Marketing Officer

Officer
51,273 +19.2%
125.18
US$3,779,468 		51,273 +19.2% 125.18 US$3,779,468
2026-06-10 2026-06-08 S Sale
Moore Devine David

EVP Chief Marketing Officer

Officer
69,295 -20.1%
72.55
US$2,337,620 		69,295 -20.1% 72.55 US$2,337,620
2026-06-10 2026-06-08 S Sale
Moore Devine David

EVP Chief Marketing Officer

Officer
60 -0.3%
29.77
US$1,786 		60 -0.3% 29.77 US$1,786
2026-06-08 2026-06-08 PrS Proposed sale
Moore Devine David

Officer

Officer
3,872
29.77
US$115,288 		3,872 29.77 US$115,288
2026-03-17 2026-03-13 S Sale
2.1
BARUFFI KUMI YAMAMOTO

EVP General Counsel, Corp Sec

Officer
937 -1.7%
26.23
US$24,578 		937 -1.7% 26.23 US$24,578
2026-03-05 2026-03-04 PlS Planned sale
1.4
Nixon Torran B

Senior Executive VP

Officer
2,240 -2.2%
28.85
US$64,624 		2,240 -2.2% 28.85 US$64,624
2026-03-04 2026-03-04 PrS Proposed sale
1.4
Nixon Torran B

Officer

Officer
2,240
28.85
US$64,624 		2,240 28.85 US$64,624
2026-03-05 2026-03-03 PlS Planned sale
1.4
Nixon Torran B

Senior Executive VP

Officer
2,241 -2.2%
28.25
US$63,308 		2,241 -2.2% 28.25 US$63,308
2026-03-03 2026-03-03 PrS Proposed sale
1.4
Nixon Torran B

Officer

Officer
2,241
28.25
US$63,308 		2,241 28.25 US$63,308
2026-02-03 2026-01-30 S Sale
3.4
GARDNER STEVEN R
Non-Executive Director
13,725 -100.0%
29.43
US$403,927 		13,725 -100.0% 29.43 US$403,927
2026-01-30 2026-01-30 PrS Proposed sale
3.4
GARDNER STEVEN R

Director

Non-Executive Director
13,725
29.43
US$403,927 		13,725 29.43 US$403,927
2025-03-05 2025-03-04 PlS Planned sale
1.4
Nixon Torran B

Senior Executive VP

Officer
4,481 -4.1%
25.99
US$116,461 		4,481 -4.1% 25.99 US$116,461
2025-03-04 2025-03-04 PrS Proposed sale
1.4
Nixon Torran B

Officer

Officer
4,481
25.99
US$116,461 		4,481 25.99 US$116,461
2024-02-07 2024-02-06 B Purchase
2.9
SEATON ELIZABETH WHITEHEAD
Non-Executive Director
2,685 +12.0%
18.48
US$49,619 		2,685 +12.0% 18.48 US$49,619
2024-02-02 2024-02-01 B Purchase
2.1
Lund Randal Lee
Non-Executive Director
1,000 +6.2%
19.29
US$19,288 		1,000 +6.2% 19.29 US$19,288
2024-02-01 2024-02-01 B Purchase
2.8
Deer Aaron James

Chief Strategy/Innovation Offc

Officer
2,000 +5.7%
19.32
US$38,648 		2,000 +5.7% 19.32 US$38,648
2024-02-01 2024-01-31 B Purchase
1.4
Nixon Torran B

Senior Executive VP

Officer
3,650 +2.8%
20.49
US$74,802 		3,650 +2.8% 20.49 US$74,802
2024-02-01 2024-01-31 B Purchase
3.0
MACHUCA LUIS
Non-Executive Director
4,889 +8.7%
20.58
US$100,638 		4,889 +8.7% 20.58 US$100,638
2024-01-31 2024-01-30 B Purchase
0.8
Merrywell Christopher

Senior Executive VP

Officer
5,000 +10.9%
21.09
US$105,450 		5,000 +10.9% 21.09 US$105,450
2024-01-31 2024-01-30 B Purchase
3.0
EERKES CRAIG D
Non-Executive Director
3 +0.0%
20.93
US$63 		3 +0.0% 20.93 US$63
2024-01-31 2024-01-30 B Purchase
3.0
EERKES CRAIG D
Non-Executive Director
38 +0.1%
20.88
US$793 		38 +0.1% 20.88 US$793
2024-01-31 2024-01-30 B Purchase
3.0
EERKES CRAIG D
Non-Executive Director
100 +0.3%
20.88
US$2,088 		100 +0.3% 20.88 US$2,088
2024-01-31 2024-01-30 B Purchase
3.0
EERKES CRAIG D
Non-Executive Director
2,000 +6.9%
20.82
US$41,635 		2,000 +6.9% 20.82 US$41,635
2024-01-30 2024-01-30 B Purchase
0.8
Finkelstein Mark A
Non-Executive Director
3,592 +17.7%
20.87
US$74,965 		3,592 +17.7% 20.87 US$74,965
2024-01-30 2024-01-30 B Purchase
2.0
Stein Clint

President, CEO

Executive Director
100 +0.1%
20.96
US$2,096 		100 +0.1% 20.96 US$2,096
2024-01-30 2024-01-30 B Purchase
2.0
Stein Clint

President, CEO

Executive Director
7,890 +5.0%
20.96
US$165,374 		7,890 +5.0% 20.96 US$165,374
2024-01-30 2024-01-30 B Purchase
2.0
Stein Clint

President, CEO

Executive Director
1,510 +1.0%
20.96
US$31,642 		1,510 +1.0% 20.96 US$31,642
2024-01-30 2024-01-30 B Purchase
0.8
Numata S Mae Fujita
Non-Executive Director
400 +48.5%
21.09
US$8,434 		400 +48.5% 21.09 US$8,434
2024-01-30 2024-01-30 B Purchase
0.8
Numata S Mae Fujita
Non-Executive Director
1,000 +3.7%
21.09
US$21,089 		1,000 +3.7% 21.09 US$21,089
2024-01-30 2024-01-30 B Purchase
0.8
Numata S Mae Fujita
Non-Executive Director
1,000 +3.8%
21.09
US$21,085 		1,000 +3.8% 21.09 US$21,085
2024-01-30 2024-01-29 B Purchase
0.8
FARNSWORTH RON L

Chief Financial Officer

Officer
2,500 +1.6%
20.71
US$51,775 		2,500 +1.6% 20.71 US$51,775
2024-01-30 2024-01-29 B Purchase
0.8
Forrest Eric
Non-Executive Director
4,750 +23.6%
20.89
US$99,245 		4,750 +23.6% 20.89 US$99,245
2024-01-30 2024-01-29 B Purchase
3.2
SCHULTZ JOHN F
Non-Executive Director
8,559 +25.7%
20.40
US$174,561 		8,559 +25.7% 20.40 US$174,561
2023-07-05 2023-06-30 B Purchase
2.8
Deer Aaron James

Chief Strategy/Innovation Offc

Officer
854 +2.4%
18.25
US$15,586 		854 +2.4% 18.25 US$15,586
2023-07-05 2023-06-30 B Purchase
2.1
BARUFFI KUMI YAMAMOTO

General Counsel, Corporate Sec

Officer
854 +2.0%
18.25
US$15,586 		854 +2.0% 18.25 US$15,586
2023-05-24 2023-05-24 B Purchase
3.0
EERKES CRAIG D
Non-Executive Director
2,381 +8.9%
21.01
US$50,025 		2,381 +8.9% 21.01 US$50,025
2023-01-04 2022-12-30 B Purchase
2.8
Lawson David C

EVP Chief H.R. Officer

Officer
264 +1.3%
26.84
US$7,086 		264 +1.3% 26.84 US$7,086
2023-01-04 2022-12-30 B Purchase
2.1
BARUFFI KUMI YAMAMOTO

EVP General Counsel

Officer
232 +1.0%
26.84
US$6,227 		232 +1.0% 26.84 US$6,227
2022-07-01 2022-06-30 B Purchase
2.8
Deer Aaron James

EVP Chief Financial Officer

Officer
748 +4.8%
25.79
US$19,291 		748 +4.8% 25.79 US$19,291
2022-07-01 2022-06-30 B Purchase
2.1
BARUFFI KUMI YAMAMOTO

EVP and General Counsel

Officer
446 +1.9%
25.79
US$11,502 		446 +1.9% 25.79 US$11,502
2022-07-01 2022-06-30 B Purchase
2.8
Lawson David C

EVP & Chief H.R. Officer

Officer
271 +1.3%
25.79
US$6,989 		271 +1.3% 25.79 US$6,989
2022-06-13 2022-06-10 B Purchase
3.0
EERKES CRAIG D
Non-Executive Director
1,694 +9.1%
28.52
US$48,313 		1,694 +9.1% 28.52 US$48,313
2022-05-04 2022-05-02 B Purchase
2.8
Deer Aaron James

EVP Chief Financial Officer

Officer
3,000 +24.1%
28.00
US$84,000 		3,000 +24.1% 28.00 US$84,000
2022-02-24 2022-02-24 B Purchase
2.8
Deer Aaron James

EVP Chief Financial Officer

Officer
3,000 +31.8%
33.45
US$100,359 		3,000 +31.8% 33.45 US$100,359
2022-01-05 2022-01-04 B Purchase
2.1
BARUFFI KUMI YAMAMOTO

EVP and General Counsel

Officer
186 +0.9%
29.45
US$5,478 		186 +0.9% 29.45 US$5,478
2022-01-05 2022-01-04 B Purchase
2.8
Lawson David C

EVP & Chief H.R. Officer

Officer
116 +0.6%
29.45
US$3,416 		116 +0.6% 29.45 US$3,416
2021-11-29 2021-11-26 B Purchase
3.6
HULBERT TOM
Non-Executive Director
3,400 +5.1%
32.24
US$109,616 		3,400 +5.1% 32.24 US$109,616
2021-11-29 2021-11-26 B Purchase
3.6
HULBERT TOM
Non-Executive Director
1,206 +1.8%
32.23
US$38,869 		1,206 +1.8% 32.23 US$38,869
2021-11-29 2021-11-26 B Purchase
3.6
HULBERT TOM
Non-Executive Director
696 +1.1%
32.22
US$22,425 		696 +1.1% 32.22 US$22,425
2021-11-29 2021-11-26 B Purchase
3.6
HULBERT TOM
Non-Executive Director
796 +1.2%
32.21
US$25,639 		796 +1.2% 32.21 US$25,639
2021-11-29 2021-11-26 B Purchase
3.6
HULBERT TOM
Non-Executive Director
2,366 +3.8%
32.20
US$76,185 		2,366 +3.8% 32.20 US$76,185
2021-11-29 2021-11-26 B Purchase
3.6
HULBERT TOM
Non-Executive Director
133 +0.2%
32.19
US$4,281 		133 +0.2% 32.19 US$4,281
2021-11-29 2021-11-26 B Purchase
3.6
HULBERT TOM
Non-Executive Director
1,153 +1.9%
32.18
US$37,104 		1,153 +1.9% 32.18 US$37,104
2021-11-29 2021-11-26 B Purchase
3.6
HULBERT TOM
Non-Executive Director
100 +0.2%
32.17
US$3,217 		100 +0.2% 32.17 US$3,217
2021-11-29 2021-11-26 B Purchase
3.6
HULBERT TOM
Non-Executive Director
589 +1.0%
32.16
US$18,942 		589 +1.0% 32.16 US$18,942
2021-11-29 2021-11-26 B Purchase
3.6
HULBERT TOM
Non-Executive Director
472 +0.8%
32.15
US$15,175 		472 +0.8% 32.15 US$15,175
2021-11-29 2021-11-26 B Purchase
3.6
HULBERT TOM
Non-Executive Director
100 +0.2%
32.14
US$3,214 		100 +0.2% 32.14 US$3,214
2021-11-29 2021-11-26 B Purchase
3.6
HULBERT TOM
Non-Executive Director
62 +0.1%
32.13
US$1,992 		62 +0.1% 32.13 US$1,992
2021-07-06 2021-07-06 B Purchase
2.8
Deer Aaron James

EVP Chief Financial Officer

Officer
711 +11.2%
31.64
US$22,496 		711 +11.2% 31.64 US$22,496
2021-07-06 2021-07-06 B Purchase
2.1
BARUFFI KUMI YAMAMOTO

EVP and General Counsel

Officer
304 +1.5%
31.64
US$9,619 		304 +1.5% 31.64 US$9,619
2021-07-06 2021-07-06 B Purchase
2.8
Lawson David C

EVP & Chief H.R. Officer

Officer
190 +1.0%
31.64
US$6,012 		190 +1.0% 31.64 US$6,012
2021-02-17 2021-02-15 B Purchase
2.8
Deer Aaron James

EVP Chief Financial Officer

Officer
935 +17.2%
24.06
US$22,496 		935 +17.2% 24.06 US$22,496
2021-01-08 2021-01-07 B Purchase
2.0
Stein Clint

PRESIDENT, CEO & DIRECTOR

Executive Director
179 +0.6%
24.06
US$4,307 		179 +0.6% 24.06 US$4,307
2021-01-08 2021-01-07 B Purchase
2.1
BARUFFI KUMI YAMAMOTO

EVP and General Counsel

Officer
219 +1.2%
24.06
US$5,269 		219 +1.2% 24.06 US$5,269
2021-01-08 2021-01-07 B Purchase
2.8
Lawson David C

EVP & Chief H.R. Officer

Officer
137 +0.8%
24.06
US$3,296 		137 +0.8% 24.06 US$3,296
2020-08-11 2020-08-10 S Sale
1.9
McDonald Andy

EVP & CCO

Officer
3,073 -7.2%
30.90
US$94,943 		3,073 -7.2% 30.90 US$94,943
2020-07-06 2020-07-02 B Purchase
2.0
Stein Clint

PRESIDENT, CEO & DIRECTOR

Executive Director
250 +0.9%
25.51
US$6,378 		250 +0.9% 25.51 US$6,378
2020-07-06 2020-07-02 B Purchase
2.1
BARUFFI KUMI YAMAMOTO

EVP and General Counsel

Officer
337 +1.8%
25.51
US$8,597 		337 +1.8% 25.51 US$8,597
2020-07-06 2020-07-02 B Purchase
2.8
Lawson David C

EVP & Chief H.R. Officer

Officer
220 +1.3%
25.51
US$5,612 		220 +1.3% 25.51 US$5,612
2020-05-13 2020-05-12 B Purchase
3.6
HULBERT TOM
Non-Executive Director
4,000 +7.9%
21.97
US$87,880 		4,000 +7.9% 21.97 US$87,880
2020-05-13 2020-05-11 B Purchase
3.6
HULBERT TOM
Non-Executive Director
175 +0.3%
23.09
US$4,041 		175 +0.3% 23.09 US$4,041
2020-05-13 2020-05-11 B Purchase
3.6
HULBERT TOM
Non-Executive Director
825 +1.7%
23.08
US$19,041 		825 +1.7% 23.08 US$19,041
2020-05-08 2020-05-07 B Purchase
3.0
EERKES CRAIG D
Non-Executive Director
1,000 +7.6%
22.93
US$22,930 		1,000 +7.6% 22.93 US$22,930
2020-03-10 2020-03-10 B Purchase
3.0
EERKES CRAIG D
Non-Executive Director
1,000 +8.2%
28.27
US$28,270 		1,000 +8.2% 28.27 US$28,270
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