FinObservatory

SEC filings / CIK 887343

COLUMBIA BANKING SYSTEM, INC.

State commercial banks, WA. 15 10-K filer-years in this dataset, the most recent for FY2025, filed Feb 26, 2026. Every figure below is as filed by the company and untouched: FinObservatory has not restated, rescaled or corrected anything, and a blank is a fact the filing does not tag, not a zero.

This is the SEC holding company, identified by its Central Index Key. It is not the insured bank subsidiary that appears in /banks and /deposits, which are FDIC call-report entities on a different consolidation. Nothing here should be compared line for line with those.

Held-to-maturity gap against reported equity

The fair value of the held-to-maturity book minus its carrying amount, divided by the stockholders’ equity the same filing reports. Years marked n/a are years in which the filing does not tag one of the three.

-15-10-50n/an/an/an/an/an/an/an/an/an/aFY2021: HTM fair value less carrying amount, -1.0% of reported stockholders’ equityFY2022: HTM fair value less carrying amount, -14.1% of reported stockholders’ equityn/an/an/a111213141516171819202122232425Fiscal year of the 10-K% of reported stockholders’ equity

The gap is computable for 2 of this company’s 15 filings.

Source: SEC Financial Statement Data Sets, US Securities and Exchange Commission, Division of Economic and Risk Analysis. Facts as filed: uncleaned, unrestated, not audited by FinObservatory. Selection: consolidated USD balance-sheet instants at each filing's own period end, from this company's 10-K submissions with prevrpt = 0. Methodology

Filing history, as filed

FYFiledAssetsDepositsEquityAOCIHTM carryingHTM fair valueGap, % of equityCustom facts
2025pFeb 26, 2026$66.83bn$54.21bn$7.84bn-$233.0m$18.0mn/an/a6.7%
2024Feb 25, 2025$51.58bn$41.72bn$5.12bn-$462.0m$2.1mn/an/a6.6%
2023Feb 27, 2024$52.17bn$41.61bn$5.00bn-$340.1m$2.3mn/an/a5.2%
2022Feb 24, 2023$20.27bn$16.71bn$2.21bn-$510.5m$2.03bn$1.72bn-14.1%8.8%
2021Feb 25, 2022$20.95bn$18.01bn$2.59bn$35.2m$2.15bn$2.12bn-1.0%8.5%
2020Feb 26, 2021$16.58bn$13.87bn$2.35bn$182.2mn/an/an/a7.0%
2019Feb 27, 2020$14.08bn$10.68bn$2.16bn$40.4mn/an/an/a11.0%
2018Feb 28, 2019$13.10bn$10.46bn$2.03bn-$35.3mn/an/an/a11.3%
2017Mar 1, 2018$12.72bn$10.53bn$1.95bn-$22.2mn/an/an/a9.0%
2016Mar 1, 2017$9.51bn$8.06bn$1.25bn-$19.0mn/an/an/a7.5%
2015Feb 29, 2016$8.95bn$7.44bn$1.24bn-$6.3mn/an/an/a6.3%
2014Mar 2, 2015$8.58bn$6.92bn$1.23bn$5.6mn/an/an/a4.8%
2013Mar 3, 2014$7.16bn$5.96bn$1.05bn-$12.0mn/an/an/a7.9%
2012Mar 1, 2013$4.91bn$4.04bn$764.0m$20.1mn/an/an/a8.4%
2011Feb 29, 2012$4.79bn$3.82bn$759.3m$25.1mn/an/an/a6.8%

ext marks a carrying amount tagged with a company-invented element. p marks FY2025, which the dataset’s filing window (closing Mar 31, 2026) leaves incomplete across filers. “Custom facts” is the share of that filing’s consolidated facts carrying a company-invented tag, in any unit.

Source: SEC Financial Statement Data Sets, US Securities and Exchange Commission, Division of Economic and Risk Analysis. Facts as filed: uncleaned, unrestated, not audited by FinObservatory. Selection: this company's 10-K submissions with prevrpt = 0, one per fiscal year by latest filed date; consolidated USD instants at each filing's period end. Dollar columns are raw US dollars. Methodology

What this page cannot tell you

  • A blank in the held-to-maturity columns means the filing does not tag that fact on the consolidated face. It does not mean the company holds no held-to-maturity securities, and this dataset cannot distinguish the two.
  • A held-to-maturity gap is not a realised loss. Held to maturity, the securities pay par. The gap measures how far the reported equity sits from a mark-to-market equity, which becomes a solvency question only if the book must be sold.
  • AOCI is not the held-to-maturity mark. It bundles available-for-sale marks, hedge marks, pension and translation, net of tax. Do not add the two columns.
  • Every value is as filed. A scale error, sign error or mis-tag by the company is reproduced here exactly as the company made it.

Pages exist for the 650 bank and thrift holding companies with at least one 10-K from FY2015 onward, out of 900 with a 10-K anywhere in the dataset.