ATLAS / Macro Radar / Reporting / COLB

COLUMBIA BANKING SYSTEM, INC. (COLB) reporting calendar

COLUMBIA BANKING SYSTEM, INC. files periodic reports with the SEC as COLB on Nasdaq. Atlas tracks 37 filed reports for this issuer, each linked to its original EDGAR accession.

Next window
26 Jul 2026 – 17 Aug 2026
Latest report
10-Q
Period ended
31 Mar 2026
Filed
5 May 2026
Reports on record
37

How this window is derived. Derived from this issuer's own filing history: 9 periods at a median 91-day cadence, filed a median 37 days after period end. The SEC does not publish forward reporting dates and Atlas does not estimate one.

Open COLB market profile Latest filing on SEC EDGAR ↗ State Commercial Banks reporting datesAll Nasdaq reporting dates

Filed periodic reports

FormPeriod endedFiledLagSEC accession
10-Q31 Mar 20265 May 202635 days0000887343-26-000135
10-K31 Dec 202526 Feb 202657 days0000887343-26-000088
10-Q30 Sep 20256 Nov 202537 days0000887343-25-000268
10-Q30 Jun 20256 Aug 202537 days0000887343-25-000233
10-Q31 Mar 20256 May 202536 days0000887343-25-000166
10-K31 Dec 202425 Feb 202556 days0000887343-25-000054
10-Q30 Sep 20245 Nov 202436 days0000887343-24-000262
10-Q30 Jun 20246 Aug 202437 days0000887343-24-000245
10-Q31 Mar 20247 May 202437 days0000887343-24-000183
10-K31 Dec 202327 Feb 202458 days0000887343-24-000089
10-Q30 Sep 20233 Nov 202334 days0000887343-23-000307
10-Q30 Jun 20233 Aug 202334 days0000887343-23-000295
10-Q31 Mar 20239 May 202339 days0000887343-23-000220
10-K31 Dec 202224 Feb 202355 days0000887343-23-000072
10-Q30 Sep 202228 Oct 202228 days0000887343-22-000134
10-Q30 Jun 20224 Aug 202235 days0000887343-22-000125
10-Q31 Mar 20225 May 202235 days0000887343-22-000108
10-K31 Dec 202125 Feb 202256 days0000887343-22-000038
10-Q30 Sep 20215 Nov 202136 days0000887343-21-000165
10-Q30 Jun 20216 Aug 202137 days0000887343-21-000155
10-Q31 Mar 20216 May 202136 days0000887343-21-000111
10-K31 Dec 202026 Feb 202157 days0000887343-21-000065
10-Q30 Sep 20205 Nov 202036 days0000887343-20-000210
10-Q30 Jun 202031 Jul 202031 days0000887343-20-000193
10-Q31 Mar 20208 May 202038 days0000887343-20-000149
10-K31 Dec 201927 Feb 202058 days0000887343-20-000070
10-Q30 Sep 20196 Nov 201937 days0000887343-19-000151
10-Q30 Jun 20191 Aug 201932 days0000887343-19-000136
10-Q31 Mar 20193 May 201933 days0000887343-19-000093
10-K31 Dec 201828 Feb 201959 days0000887343-19-000033
10-Q30 Sep 20187 Nov 201838 days0000887343-18-000150
10-Q30 Jun 20187 Aug 201838 days0000887343-18-000143
10-Q31 Mar 20184 May 201834 days0000887343-18-000087
10-K31 Dec 20171 Mar 201860 days0000887343-18-000041
10-Q30 Sep 20178 Nov 201739 days0000887343-17-000168
10-Q30 Jun 20179 Aug 201740 days0000887343-17-000148
10-Q31 Mar 20175 May 201735 days0000887343-17-000102

Source: SEC EDGAR company submissions for CIK 0000887343. Atlas publishes filed facts only. The SEC does not publish forward reporting dates, so no announced future date is claimed here.