Welcome to our dedicated page for Columbia Bank SEC filings (Ticker: COLB), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The Columbia Banking System, Inc. (COLB) SEC filings page on Stock Titan provides direct access to the company’s regulatory disclosures as filed with the U.S. Securities and Exchange Commission. Columbia is a Washington‑incorporated bank holding company whose common stock trades on The Nasdaq Stock Market LLC under the symbol COLB, and its filings offer detailed insight into the operations of Columbia Bank and related subsidiaries.
Investors can use this page to locate current reports on Form 8‑K, which Columbia files to report material events. Recent 8‑Ks describe items such as quarterly and annual earnings releases, authorization of cash dividends, approval of a common stock repurchase program, completion of the all‑stock acquisition of Pacific Premier Bancorp, Inc., and regulatory approvals for that transaction. Other 8‑Ks document leadership and governance changes, including the appointment of executive officers like the Chief Financial Officer and Chief Accounting Officer, transitions of existing executives into advisory roles, and the addition of former Pacific Premier directors to Columbia’s Board of Directors and its committees.
Filings related to the Pacific Premier acquisition, including the initial Form 8‑K and subsequent Form 8‑K/A amendments, provide detail on the merger structure, exchange ratio, treatment of equity awards, and pro forma financial information for the combined company. Additional 8‑K items reference joint press releases, consulting agreements, and regulatory approvals from banking authorities that were required to complete the transaction.
On Stock Titan, these SEC filings are supplemented with AI‑powered summaries designed to highlight the key points of each document, such as the nature of a reported event, its potential impact on Columbia’s capital, governance or operations, and any notable terms in attached exhibits. Users can quickly scan high‑level explanations of earnings‑related 8‑Ks, dividend and buyback announcements, merger disclosures, and executive compensation or transition agreements, while retaining the ability to review the full text of each filing for comprehensive analysis.
Columbia Banking System (COLB) director reported a Form 4 transaction involving deferred compensation. On 11/05/2025, the reporting person acquired 630 deferred compensation phantom stock units (Transaction Code: A) at a derivative price of $26.55 per unit. Following this accrual, the reporting person beneficially owns 47,117 derivative securities, held indirectly through the company’s deferred compensation plan. Per the plan, these units are payable after the individual’s employment ends.
Columbia Banking System, Inc. filed its quarterly report for the period ended September 30, 2025. The filing is a standard Form 10-Q that provides unaudited condensed consolidated financial statements, management’s discussion and analysis, market risk disclosures, and information on controls and procedures and other required items.
The company’s common stock trades on The Nasdaq Stock Market LLC under the symbol COLB. The report notes that there were 299,120,976 shares of common stock, no par value, outstanding as of October 31, 2025.
Columbia Banking System (COLB) appointed Ivan Seda as Chief Financial Officer of the company and Columbia Bank effective December 31, 2025. Beginning November 1, 2025, his compensation terms include an annual base salary of $550,000, a target annual incentive of 85% of base salary, and performance stock units valued at $750,000 that will cliff vest after three years based on performance conditions.
Ronald L. Farnsworth will transition from CFO to senior advisor from the effective date through June 1, 2026. Under a transition letter, he will receive salary at his current annual rate, continue health and welfare benefits eligibility, and vest outstanding equity per award terms, but will not receive a 2026 incentive or new equity. Upon his termination on June 1, 2026 (subject to conditions), he is entitled to severance per his participation agreement, a lump sum equal to the company’s monthly benefits contribution multiplied by 18, and a lump sum equal to 62,572 multiplied by the closing price of COLB common stock on the separation date.
Columbia Banking System (COLB) reported that it issued a press release announcing its third quarter 2025 financial results. The company also released an investor slide presentation to be discussed on its earnings conference call on October 30, 2025.
The press release is furnished as Exhibit 99.1 and the presentation as Exhibit 99.2; these materials are not deemed filed under the Exchange Act. Final financial statements for the quarter ended September 30, 2025 will be included in the upcoming Form 10‑Q.
Columbia Banking System insider acquisition tied to Pacific Premier merger The reporting person, a company director, received 245,875 shares of Columbia common stock directly and 338,221 shares indirectly through the Gardner Family Trust as part of Columbia's acquisition of Pacific Premier Bancorp. Under the merger terms each Pacific Premier share was converted into 0.9150 Columbia shares, with fractional shares paid in cash. The filing discloses the share conversion and the closing prices on August 29: Columbia at $26.77 and Pacific Premier at $24.49.
Jaynie M. Studenmund, a director of Columbia Banking System, Inc. (COLB), reported acquisition of Columbia common stock related to Columbia's acquisition of Pacific Premier Bancorp, Inc. Pursuant to the merger, each Pacific Premier share held by the reporting person converted into the right to receive 0.9150 shares of Columbia common stock, with fractional shares paid in cash. The reporter acquired 15,653 shares directly and 3,843 shares indirectly (via a Morgan Stanley IRA) on 08/31/2025, and an additional 2,205 restricted shares were acquired on 09/02/2025 that vest in full on 05/15/2026. The form notes closing prices on 08/29/2025: Columbia $26.77 and Pacific Premier $24.49.
Mitchell M. Christian, a director of Columbia Banking System, Inc. (COLB), reported acquisitions totaling 37,960 shares of Columbia common stock. On 08/31/2025 he received 35,755 shares as part of Columbia's acquisition of Pacific Premier Bancorp, Inc., where each Pacific Premier share converted into 0.9150 Columbia shares; fractional shares were paid in cash. The filing shows closing prices on 08/29/2025 of Columbia at $26.77 and Pacific Premier at $24.49. Separately, on 09/02/2025 he was granted 2,205 restricted shares that vest on 05/15/2026. All reported holdings are direct beneficial ownership and the transactions are coded as acquisitions with a reported price of $0, reflecting conversion/award mechanics.
Columbia Banking System, Inc. (COLB) filed an Initial Statement on Form 3 for reporting person Jaynie M. Studenmund, indicating her relationship to the issuer as a Director. The filing states no securities are beneficially owned by the reporting person. The form was executed by an attorney-in-fact on 09/03/2025 and records the triggering event date as 08/31/2025.
Columbia Banking System, Inc. (COLB) received an initial Form 3 disclosing that Mitchell M. Christian is reported as a Director and the filing shows no securities beneficially owned by the reporting person. The Form lists the triggering event date as 08/31/2025 and includes an attorney-in-fact signature on the form. This indicates the director currently holds no direct or indirect equity stake disclosed on the Form 3.
Columbia Banking System, Inc. director Steven R. Gardner filed an initial ownership report stating that he does not beneficially own any shares or derivative securities of the company as of the reported date. This Form 3 establishes his insider status while confirming that he currently holds no reportable equity position in Columbia Banking System, Inc.