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.
Columbia Banking System, Inc. filings document the disclosure record of a Washington bank holding company whose common stock trades on Nasdaq under COLB. Form 8-K reports cover earnings releases, Regulation FD investor presentations, dividend declarations, officer appointments, compensation arrangements and other material events involving Columbia Banking System and Columbia Bank.
Definitive proxy materials cover shareholder voting matters, board governance, executive compensation, equity awards and related corporate-governance disclosures. The company’s filing record also identifies its registered common stock, capital-structure disclosures, periodic financial reporting references and governance matters tied to its regional banking operations.
Columbia Banking System executive reports tax-related share disposition
EVP and Chief Risk Officer Andrew H. Ognall reported a tax-withholding disposition of 931 shares of Columbia Banking System common stock at $31.49 per share. After this transaction, he directly held 74,006 shares, plus 2,635 shares held indirectly through a 401(k) plan.
COLUMBIA BANKING SYSTEM, INC. Senior Executive VP Torran B. Nixon reported a tax-withholding share disposition. On February 15, 2026, 1,905 shares of common stock were used to cover taxes at $31.49 per share, leaving 105,690 shares held directly. He also reports indirect holdings of 3,650 shares through a family trust and 1,869 shares in a 401(k).
COLUMBIA BANKING SYSTEM, INC. executive Frank Namdar, EVP Chief Credit Officer, reported a tax-withholding disposition of 1,169 shares of common stock at $31.49 per share. This transaction satisfied tax obligations rather than representing an open-market sale. Following the transaction, he directly held 32,278 shares and indirectly held 4,126 shares through a 401(k) plan.
Columbia Banking System executive reports tax-related share disposition. EVP and Chief Marketing Officer David Moore Devine reported a tax-withholding disposition of 485 shares of common stock at $31.49 per share. After this transaction, he directly owns 22,782 shares of Columbia Banking System common stock.
Senior Executive VP Christopher Merrywell of Columbia Banking System reported a tax-withholding disposition of common stock. On February 15, 2026, 1,706 shares of common stock were disposed of at $31.49 per share to cover tax obligations. After this transaction, Merrywell directly owned 44,257 common shares of the company.
COLUMBIA BANKING SYSTEM, INC. executive Aaron James Deer reported a tax-related share disposition. On February 15, 2026, he transferred 531 shares of common stock at $31.49 per share to cover tax obligations. After this tax-withholding disposition, he directly owned 41,843 common shares.
COLUMBIA BANKING SYSTEM, INC. executive Kumi Yamamoto Baruffi, EVP General Counsel and Corporate Secretary, reported a Form 4 transaction involving company common stock. The filing shows a tax-withholding disposition of 1,036 shares of common stock at a price of $31.49 per share on February 15, 2026. After this transaction, the reporting person directly owned 54,070 shares of common stock.
COLUMBIA BANKING SYSTEM, INC. executive Drew K. Anderson, EVP Chief Admin Officer, reported a tax-withholding disposition of 788 shares of common stock at $31.49 per share. This Form 4 shows the transaction reduced his directly held stake to 22,486 shares following the disposition.
Columbia Banking System, Inc., parent of Columbia Bank, announced that its Board of Directors approved a quarterly cash dividend of $0.37 per common share. The dividend will be paid on March 16, 2026, to shareholders who are on record as of February 27, 2026. This continues the company’s practice of returning cash to common shareholders through regular dividends.
Wellington Management Group LLP and affiliated entities have filed a Schedule 13G reporting a significant passive stake in Columbia Banking System, Inc. (COLB). The Wellington group reports beneficial ownership of 18,106,228 shares of Columbia’s common stock, representing approximately 6.05–6.1% of the outstanding class.
The shares are held of record by clients of multiple Wellington investment adviser subsidiaries, which have shared voting and dispositive power, while Wellington entities themselves report no sole voting or dispositive power. The filing states the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Columbia Banking System. No individual client is reported to hold more than five percent of the class.