579 filings
Page 18 of 29
8-K
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7 Feb 11
Columbia Banking System Announces Increased Earnings
12:00am
8-K
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29 Oct 10
Columbia Banking System Announces Fourth Consecutive Quarterly
12:00am
8-K
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14 Oct 10
Departure of Directors or Certain Officers
12:00am
8-K
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2 Sep 10
Other Events
12:00am
8-K
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13 Aug 10
Other Events
12:00am
EFFECT
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2 Aug 10
Notice of effectiveness
12:00am
8-K
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30 Jul 10
Results of Operations and Financial Condition
12:00am
POS AM
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28 Jul 10
Prospectus update (post-effective amendment)
12:00am
8-K
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5 May 10
Regulation FD Disclosure
12:00am
8-K
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3 May 10
Submission of Matters to a Vote of Security Holders
12:00am
424B5
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30 Apr 10
Prospectus supplement for primary offering
12:00am
8-K
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30 Apr 10
Entry into a Material Definitive Agreement
12:00am
S-3MEF
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29 Apr 10
Registration of additional securities for an S-3
12:00am
8-K
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28 Apr 10
Columbia Banking System Announces Earnings of $6.8 Million
12:00am
424B3
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28 Apr 10
Prospectus supplement
12:00am