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COLBNasdaq · State Commercial Banks

COLUMBIA BANKING SYSTEM, INC.

Alert me on COLB
1
Insider buys, 6 months
0
Congress trades, 6 months
0
Signals, 6 months

Six months

COLB stock chart by TradingView

After each filing

9
Jul 3 Buy Deer Aaron James Insider
1 week
−0.8%S&P −0.3%
1 month
−1.4%S&P +2.7%
3 months
−9.2%S&P +2.7%
6 months
Result in48 trading days
Jun 11 Sale Moore Devine David Insider
1 week
−0.9%S&P +1.5%
1 month
+4.6%S&P +2.2%
3 months
−1.1%S&P +3.9%
6 months
Result in33 trading days
Apr 8 Sale Rep. Josh Gottheimer House
1 week
−2.0%S&P +3.2%
1 month
+1.6%S&P +8.5%
3 months
+9.7%S&P +11.3%
6 months
−1.1%S&P +14.4%
Mar 18 Sale BARUFFI KUMI YAMAMOTO Insider
1 week
+5.3%S&P −0.4%
1 month
+13.1%S&P +7.7%
3 months
+16.1%S&P +12.3%
6 months
+17.1%S&P +15.9%
Mar 18 Sale Lakely Brock Insider
1 week
+5.3%S&P −0.4%
1 month
+13.1%S&P +7.7%
3 months
+16.1%S&P +12.3%
6 months
+17.1%S&P +15.9%
Show all 9
Mar 6 Sale Nixon Torran B Insider
1 week
−3.9%S&P −1.5%
1 month
+1.4%S&P −1.7%
3 months
+10.0%S&P +10.0%
6 months
+15.6%S&P +15.2%
Feb 13 Sale Rep. Gilbert Cisneros House
1 week
−4.6%S&P +0.7%
1 month
−15.2%S&P −3.1%
3 months
−6.1%S&P +8.5%
6 months
+5.3%S&P +13.0%
Feb 4 Sale GARDNER STEVEN R Insider
1 week
+1.6%S&P +0.8%
1 month
−11.2%S&P −2.0%
3 months
−1.8%S&P +7.2%
6 months
+2.2%S&P +12.6%
Nov 18, 2025 Buy Rep. Gilbert Cisneros House
1 week
+7.5%S&P +2.6%
1 month
+10.9%S&P +3.0%
3 months
+15.6%S&P +3.3%
6 months
+15.7%S&P +13.2%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for COLB

99 held · newest 599 held · newest 2
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See all 99 filings for COLB

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Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal
No contracts of $10M or more in the last 12 months.

Lobbying

Last four quarters
No lobbying reports on file.