Columbia Banking System, Inc. Contracts & Agreements

Columbia Banking System, Inc. Executive Change in Control Severance Plan (Filed With SEC on November 5, 2024)

Columbia Banking System, Inc. Form of Participation Agreement (Filed With SEC on November 5, 2024)

2024 Equity Incentive Plan (Filed With SEC on May 9, 2024)

Form of Restricted Stock Award Agreement under the 2024 Equity Incentive Plan (Filed With SEC on May 9, 2024)

Form of Restricted Stock Unit Agreement under 2024 Equity Incentive Plan (Filed With SEC on May 9, 2024)

Form of Performance Stock Unit Agreement-ROTCE under the 2024 Equity Incentive Plan (Filed With SEC on May 9, 2024)

Form of Performance Stock Unit Agreement-TSR under the 2024 Equity Incentive Plan (Filed With SEC on May 9, 2024)

Second Amendment to the Amended and Restated Employee Stock Purchase Plan (Filed With SEC on May 9, 2024)

Form of Umpqua Bank Endorsement Method Split Dollar Agreement (Filed With SEC on May 7, 2024)

Umpqua Bank Nonqualified Deferred Compensation Plan, Revised and Restated January 1, 2024 (Filed With SEC on February 27, 2024)

Letter Agreement, dated as of March 1, 2023, by and between Columbia Banking System, Inc. and Drew Anderson (Filed With SEC on May 9, 2023)

Letter Agreement, dated as of March 1, 2023, by and between Columbia Banking System, Inc. and Sheri Burns (Filed With SEC on May 9, 2023)

Letter Agreement, dated as of March 1, 2023, by and between Columbia Banking System, Inc. and Frank Namdar (Filed With SEC on May 9, 2023)

Letter Agreement, dated as of March 1, 2023, by and between Columbia Banking System, Inc. and Tory Nixon (Filed With SEC on May 9, 2023)

Letter Agreement, dated as of March 1, 2023, by and between Columbia Banking System, Inc. and Andrew Ognall (Filed With SEC on May 9, 2023)

Letter Agreement, dated as of March 1, 2023, by and between Columbia Banking System, Inc. and Kumi Baruffi (Filed With SEC on May 9, 2023)

Letter Agreement, dated as of March 1, 2023, by and between Columbia Banking System, Inc. and Lisa Dow (Filed With SEC on May 9, 2023)

Letter Agreement, dated as of March 1, 2023, by and between Columbia Banking System, Inc. and David Moore Devine (Filed With SEC on May 9, 2023)

Second Amendment to the Columbia State Bank Supplemental Executive Retirement Plan Agreement, dated as of February 28, 2023, by and between Columbia State Bank and Kumi Baruffi (Filed With SEC on May 9, 2023)

First Amendment to Columbia Banking System, Inc. 2023 Deferred Compensation Plan, dated as of April 18, 2023 (Filed With SEC on May 9, 2023)

Letter Agreement, dated as of October 11, 2021, by and between Columbia Banking System, Inc. and Cort OHaver (Filed With SEC on March 1, 2023)

Letter Agreement, dated as of March 1, 2023, by and between Columbia Banking System, Inc. and Ronald Farnsworth (Filed With SEC on March 1, 2023)

Letter Agreement, dated as of March 1, 2023, by and between Columbia Banking System, Inc. and Lisa White (Filed With SEC on March 1, 2023)

Letter Agreement, dated as of March 1, 2023, by and between Columbia Banking System, Inc. and Aaron Deer (Filed With SEC on March 1, 2023)

Letter Agreement, dated as of March 1, 2023, by and between Columbia Banking System, Inc. and Eric Eid (Filed With SEC on March 1, 2023)

Letter Agreement, dated as of March 1, 2023, by and between Columbia Banking System, Inc. and Christopher Merrywell (Filed With SEC on March 1, 2023)

Columbia Banking System, Inc. 2023 Deferred Compensation Plan (Filed With SEC on March 1, 2023)

2018 Equity Incentive Plan (as amended through May 22, 2019) (Filed With SEC on February 24, 2023)

Form of Restricted Stock Agreement (Filed With SEC on February 24, 2023)

Form of Restricted Stock Unit Agreement (Filed With SEC on February 24, 2023)

Form of Performance Stock Unit Agreement (Filed With SEC on February 24, 2023)

Amendment to Amended and Restated Columbia Banking System, Inc. 2005 401 Plus Plan (Deferred Compensation plan), dated November 14, 2022 (Filed With SEC on February 24, 2023)

Amendment to Columbia Banking System, Inc. 2016 401 Plus Plan (Deferred Compensation Plan), dated November 14, 2022 (Filed With SEC on February 24, 2023)

Amended and Restated Employment Agreement, dated as of October 11, 2021, by and between Columbia Banking System, Inc. and Clint E. Stein (Filed With SEC on February 24, 2023)

First Amendment to the Employment Agreement and the A&R Employment Agreement, dated as of December 31, 2022, by and between Columbia Banking System, Inc. and Clint E. Stein (Filed With SEC on February 24, 2023)

Amendment No. 1 to the Merger Agreement, dated as of January 9, 2023, by and among Columbia, Umpqua and Merger Sub (Filed With SEC on January 10, 2023)

Agreement and Plan of Merger, dated as of October 11, 2021, by and among Umpqua Holdings Corporation, Columbia Banking System, Inc., and Cascade Merger Sub, Inc (Filed With SEC on October 15, 2021)

Amended and Restated Employment Agreement, dated as of October 11, 2021, by and between Columbia Banking System, Inc. and Clint E. Stein (Filed With SEC on October 15, 2021)

Agreement and Plan of Merger, dated as of June 23, 2021, by and between Columbia Banking System, Inc. and Bank of Commerce Holdings (Filed With SEC on June 24, 2021)

Change in Control Agreement between the Bank and David Lawson dated as of November 25, 2020 (Filed With SEC on February 26, 2021)

Change in Control Agreement between the Bank and Lisa Dow dated as of November 25, 2020 (Filed With SEC on February 26, 2021)

Columbia State Bank Endorsement Method Split Dollar Agreement (Filed With SEC on February 26, 2021)

First Amendment to the Columbia State Bank Endorsement Method Split Dollar Agreement (Filed With SEC on February 26, 2021)

Columbia State Bank Endorsement Method Split Dollar Agreement (Filed With SEC on February 26, 2021)

Executive Supplemental Compensation Agreement dated as of February 23, 2011 between Columbia State Bank and Eric J. Eid (Filed With SEC on February 26, 2021)

Columbia State Bank Joint Beneficiary Agreement, by and between Columbia State Bank and David Devine, effective November 1, 2011 (Filed With SEC on February 26, 2021)

Columbia State Bank Joint Beneficiary Agreement, by and between Columbia State Bank and Eric Eid, effective November 1, 2011 (Filed With SEC on February 26, 2021)

Executive Supplemental Compensation Agreement date (Filed With SEC on February 26, 2021)

Executive Supplemental Compensation Agreement dated as of March 25, 2015 between Columbia State Ban (Filed With SEC on February 26, 2021)

Executive Supplemental Compensation Agreement dated as of February 1, 2018 between Columbia State Bank and Christopher Merrywell (Filed With SEC on February 26, 2021)

Executive Supplemental Compensation Agreement dated as of March 11, 2019 between Columbia State Bank and David Moore Devine (Filed With SEC on February 26, 2021)

Change in Control Agreement between the Bank and Aaron Deer dated as of May 7, 2020 (Filed With SEC on July 31, 2020)

Change in Control Agreement between the Bank and Christopher Merrywell dated as of January 1, 2020 (Filed With SEC on May 8, 2020)

Change in Control Agreement between the Bank and David Moore Devine dated as of March 2, 2020 (Filed With SEC on May 8, 2020)

Change in Control Agreement between the Bank and Eric Eid dated as of March 2, 2020 (Filed With SEC on May 8, 2020)

Offer Letter, dated April 6, 2020 by and between Columbia State Bank and Aaron Deer (Filed With SEC on April 13, 2020)

Employment Separation Agreement dated March 12, 2020, by Columbia State Bank, Columbia Banking System, Inc. and Greg Sigrist (Filed With SEC on March 18, 2020)

Description of Capital Stock (Filed With SEC on February 27, 2020)

Change in Control Agreement between the Bank and Kumi Yamamoto Baruffi dated as of December 2, 2019 (Filed With SEC on February 27, 2020)

Employment Agreement dated September 30, 2019, by Columbia State Bank, Columbia Banking System, Inc. and Clint Stein (Filed With SEC on October 3, 2019)

Change in Control Agreement between the Bank and Andrew L. McDonald dated as of May 23, 2019 (Filed With SEC on August 1, 2019)

Second Amendment to the Columbia State Bank Endorsement Method Split Dollar Agreement, by and between the Bank and David C. Lawson, effective May 31, 2019 (Filed With SEC on August 1, 2019)

Second Amendment to the Columbia State Bank Endorsement Method Split Dollar Agreement, by and between the Bank and Kumi Baruffi, effective May 31, 2019 (Filed With SEC on August 1, 2019)

Third Amendment to the Columbia State Bank Endorsement Method Split Dollar Agreement, by and between the Bank and Clinton E. Stein, effective May 31, 2019 (Filed With SEC on August 1, 2019)

Change in Control Agreement between the Bank and Clint E. Stein dated as of October 24, 2017 (Filed With SEC on May 3, 2019)

Columbia State Bank Supplemental Executive Retirement Plan Agreement, by and between the Bank and Lisa Dow, effective March 11, 2018 (Filed With SEC on May 3, 2019)

Columbia State Bank Endorsement Method Split Dollar Agreement (SERP Benefit), by and between the Bank and Lisa Dow, effective February 25, 2019 (Filed With SEC on May 3, 2019)

First Amendment to the Columbia State Bank Endorsement Split Dollar Agreement (SERP Benefit), by and between the Bank and Lisa Dow, effective February 25, 2019 (Filed With SEC on May 3, 2019)

Change in Control Agreement between the Bank and David C. Lawson, dated December 11, 2018 (Filed With SEC on February 28, 2019)

Amended and Restated Executive Supplemental Income Agreement, by and between the Company and Lisa Dow, dated December 26, 2018 (Filed With SEC on February 28, 2019)

Columbia State Bank Supplemental Executive Retirement Plan Agreement, by and between the Bank and Gregory A. Sigrist, effective July 25, 2018 (Filed With SEC on November 7, 2018)

Columbia State Bank Endorsement Method Split Dollar Agreement (SERP Benefit), by and between the Bank and Gregory A. Sigrist, effective July 25, 2018 (Filed With SEC on November 7, 2018)

Columbia State Bank Endorsement Method Split Dollar Agreement (Base Salary Benefit), by and between the Bank and Gregory A. Sigrist, effective July 25, 2018 (Filed With SEC on November 7, 2018)

First Amendment to Amended and Restated Employee Stock Purchase Plan of Columbia Banking System, Inc., dated as of September 26, 2018 (Filed With SEC on November 7, 2018)

Change in Control Agreement, dated and effective January 24, 2018, by and between the Bank and Lisa Dow (Filed With SEC on August 7, 2018)

Change in Control Agreement, dated and effective June 4, 2018, by and between the Bank and Gregory Sigrist (Filed With SEC on August 7, 2018)

Offer Letter, dated January 3, 2018, by and between Columbia State Bank and Lisa Dow (Filed With SEC on August 7, 2018)

Offer Letter, dated April 20, 2018, by and between Columbia State Bank and Greg Sigrist (Filed With SEC on May 4, 2018)

First Amendment to the Columbia State Bank Supplemental Executive Retirement Plan Agreement, by and between the Bank and Kumi Baruffi, effective November 15, 2017 (Filed With SEC on March 1, 2018)

First Amendment to the First Amended and Restated Columbia State Bank Supplemental Executive Retirement Plan Agreement, by and between the Bank and David Lawson, effective... (Filed With SEC on March 1, 2018)

First Amendment to the First Amended and Restated Columbia State Bank Supplemental Executive Retirement Plan Agreement, by and between the Bank and Andrew L. McDonald, effective... (Filed With SEC on March 1, 2018)

First Amendment to the Columbia State Bank Supplemental Executive Retirement Plan Agreement, by and between the Bank and Hadley S. Robbins, effective November 15, 2017 (Filed With SEC on March 1, 2018)

First Amendment to the First Amended and Restated Columbia State Bank Supplemental Executive Retirement Plan Agreement, by and between the Bank and Clinton E. Stein, effective... (Filed With SEC on March 1, 2018)

Employment Agreement dated June 28, 2017, by Columbia State Bank, Columbia Banking System, Inc. and Robbins (Filed With SEC on June 29, 2017)

AGREEMENT AND PLAN OF MERGER by and between COLUMBIA BANKING SYSTEM, INC. AND PACIFICCONTINENTAL CORPORATION Dated as of January 9, 2017 TABLE OF CONTENTS (Filed With SEC on January 10, 2017)

AMENDED AND RESTATED COLUMBIA BANKING SYSTEM, INC. 2005 401 Plus Plan Recitals (Filed With SEC on October 28, 2016)

COLUMBIA BANKING SYSTEM, INC. 2016 401 Plus Plan (Filed With SEC on October 28, 2016)

COLUMBIA STATE BANK CHANGE IN CONTROL AGREEMENT (Filed With SEC on February 29, 2016)

COLUMBIA STATE BANK ENDORSEMENT METHOD SPLIT DOLLAR AGREEMENT (By and Between COLUMBIA STATE BANK and MELANIE J. DRESSEL) (Filed With SEC on November 5, 2015)

AMENDMENT TO EMPLOYMENT AGREEMENT (Filed With SEC on May 6, 2015)

FIRST AMENDMENT TO THE SECOND AMENDED AND RESTATED COLUMBIA STATE BANK SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN AGREEMENT (By and Between Melanie J. Dressel & Columbia State Bank) (Filed With SEC on May 6, 2015)

FIRST AMENDED AND RESTATED COLUMBIA STATE BANK SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN AGREEMENT (By and Between Columbia State Bank and Clinton E. Stein) ARTICLE I PURPOSE AND... (Filed With SEC on May 6, 2015)

FIRST AMENDED AND RESTATED COLUMBIA STATE BANK SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN AGREEMENT (By and Between Columbia State Bank and Andrew L. McDonald) ARTICLE I PURPOSE AND... (Filed With SEC on May 6, 2015)

FIRST AMENDED AND RESTATED COLUMBIA STATE BANK SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN AGREEMENT (By and Between Columbia State Bank and David Lawson) ARTICLE I PURPOSE AND... (Filed With SEC on May 6, 2015)

FIRST AMENDMENT TO THE RESTATED AND AMENDED WEST COAST BANK SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN AGREEMENT (Acquired by Columbia State Banking System, Inc.) (Filed With SEC on May 6, 2015)

COLUMBIA STATE BANK SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN AGREEMENT (By and Between Columbia State Bank and Hadley S. Robbins) ARTICLE I PURPOSE AND EFFECTIVE DATE (Filed With SEC on May 6, 2015)

COLUMBIA STATE BANK SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN AGREEMENT (By and Between Columbia State Bank and Kumi Baruffi) ARTICLE I PURPOSE AND EFFECTIVE DATE (Filed With SEC on May 6, 2015)

EMPLOYMENT AGREEMENT (Filed With SEC on March 2, 2015)

COLUMBIA STATE BANK CHANGE IN CONTROL AGREEMENT (Filed With SEC on March 2, 2015)

COLUMBIA STATE BANK CHANGE IN CONTROL AGREEMENT (Filed With SEC on August 6, 2014)

AGREEMENT ANDPLAN OF MERGER by and between COLUMBIA BANKING SYSTEM, INC. and INTERMOUNTAINCOMMUNITY BANCORP Dated as of July 23, 2014 TABLE OF CONTENTS (Filed With SEC on July 24, 2014)

COLUMBIA STATE BANK SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN AGREEMENT ARTICLE I PURPOSE AND EFFECTIVE DATE (Filed With SEC on May 9, 2014)

COLUMBIA STATE BANK CHANGE IN CONTROL AGREEMENT (Filed With SEC on March 3, 2014)

COLUMBIA STATE BANK SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN AGREEMENT ARTICLE I PURPOSE AND EFFECTIVE DATE (Filed With SEC on November 4, 2013)

COLUMBIA STATE BANK CHANGE IN CONTROL AGREEMENT (Filed With SEC on October 29, 2012)

AGREEMENT AND PLAN OF MERGER by and among COLUMBIA BANKING SYSTEM, INC. WEST COAST BANCORP and SUB (as defined herein) Dated as of September 25, 2012 TABLE OF CONTENTS (Filed With SEC on October 1, 2012)

COLUMBIA STATE BANK CHANGE IN CONTROL AGREEMENT (Filed With SEC on February 29, 2012)

AMENDED AND RESTATED COLUMBIA BANKING SYSTEM, INC. 401 Plus Plan Recitals (Filed With SEC on February 29, 2012)

COLUMBIA STATE BANK CHANGE IN CONTROL AGREEMENT (Filed With SEC on February 29, 2012)

COLUMBIA STATE BANK CHANGE IN CONTROL AGREEMENT (Filed With SEC on November 30, 2011)

PURCHASE AND ASSUMPTIONAGREEMENT MODIFIED WHOLE BANK ALL DEPOSITS AMONG FEDERAL DEPOSIT INSURANCE CORPORATION, RECEIVER OF BANK OF WHITMAN. COLFAX, WASHINGTON FEDERAL DEPOSIT... (Filed With SEC on August 11, 2011)

AMENDED AND RESTATED COLUMBIA BANKING SYSTEM, INC. 401 Plus Plan Recitals (Filed With SEC on August 8, 2011)

AMENDED AND RESTATED EMPLOYEE STOCK PURCHASE PLAN OF COLUMBIA BANKING SYSTEM, INC. Recital (Filed With SEC on March 1, 2011)

COLUMBIA BANKING SYSTEM, INC. (a Washington corporation) 9,600,000 Shares of Common Stock (No Par Value Per Share) UNDERWRITING AGREEMENT (Filed With SEC on April 30, 2010)

PURCHASE AND ASSUMPTION AGREEMENT WHOLE BANK ALL DEPOSITS AMONG FEDERAL DEPOSIT INSURANCE CORPORATION, (Filed With SEC on January 28, 2010)

COLUMBIA BANKING SYSTEM, INC. LONG-TERM RESTRICTEDSTOCK AGREEMENT (Filed With SEC on January 5, 2010)

AMENDMENT TO CHANGE IN CONTROL AGREEMENT (Filed With SEC on November 6, 2009)

AMENDMENT TO (Filed With SEC on November 6, 2009)

INDEMNIFICATION AGREEMENT (Filed With SEC on November 6, 2009)

AMENDED AND RESTATED COLUMBIA BANKING SYSTEM, INC. 401 Plus Plan Recitals (Filed With SEC on November 6, 2009)

COLUMBIA BANKING SYSTEM, INC. (a Washington corporation) 8,500,000 Shares of Common Stock (Filed With SEC on August 6, 2009)

SECONDAMENDED AND RESTATED EXECUTIVESUPPLEMENTAL COMPENSATION AGREEMENT (Byand Between Columbia State Bank and Columbia Banking System, Inc.and MelanieJ. Dressel) (Filed With SEC on June 2, 2009)

SECONDAMENDED AND RESTATED EXECUTIVESUPPLEMENTAL COMPENSATION AGREEMENT (Byand Between Columbia State Bank and Columbia Banking System, Inc.and GaryR. Schminkey) (Filed With SEC on June 2, 2009)

SECONDAMENDED AND RESTATED EXECUTIVESUPPLEMENTAL COMPENSATION AGREEMENT (Byand Between Columbia State Bank and Columbia Banking System, Inc.and MarkW. Nelson) (Filed With SEC on June 2, 2009)

WARRANT TO PURCHASE COMMON STOCK (Filed With SEC on November 21, 2008)

WAIVER OF EXECUTIVE COMPENSATION AGREEMENT (Filed With SEC on November 21, 2008)

UNITED STATES DEPARTMENT OF THE TREASURY 1500 PENNSYLVANIA AVENUE, NW (Filed With SEC on November 21, 2008)

COLUMBIA BANKING SYSTEM, INC. STOCK OPTION AGREEMENT (Filed With SEC on March 7, 2008)

COLUMBIA BANKING SYSTEM, INC. RESTRICTED STOCK AGREEMENT (Filed With SEC on March 7, 2008)

COLUMBIA BANKING SYSTEM, INC. STOCK APPRECIATION RIGHTS AGREEMENT (Filed With SEC on March 7, 2008)

COLUMBIA BANKING SYSTEM, INC. RESTRICTED STOCK UNIT AGREEMENT (Filed With SEC on March 7, 2008)

CHANGE IN CONTROL AGREEMENT (Filed With SEC on March 7, 2008)

SUPPLEMENTAL COMPENSATION AGREEMENT (Filed With SEC on March 7, 2008)

VOTING AGREEMENT (Filed With SEC on May 23, 2007)

NON-COMPETITION AGREEMENT (Filed With SEC on May 23, 2007)

CHANGE IN CONTROL AGREEMENT (Filed With SEC on May 4, 2007)

VOTING AGREEMENT (Filed With SEC on May 4, 2007)

NON-COMPETITION AGREEMENT (Filed With SEC on May 4, 2007)

[COLUMBIA BANKING SYSTEM, INC.] (Filed With SEC on May 4, 2007)

[COLUMBIA STATE BANK] (Filed With SEC on May 4, 2007)

EMPLOYMENT AGREEMENT (Filed With SEC on May 4, 2007)

PLAN AND AGREEMENT OF MERGER AMONG COLUMBIABANKING SYSTEM, INC. COLUMBIA STATE BANK AND TOWN CENTER BANCORP TOWN CENTER BANK Dated as of March 28, 2007 (Filed With SEC on April 5, 2007)

PLAN AND AGREEMENT OF MERGER AMONG COLUMBIA BANKING SYSTEM, INC. (Filed With SEC on April 5, 2007)

NON-MANAGEMENT DIRECTOR COMPENSATION SUMMARY (Filed With SEC on August 8, 2006)

SEVERANCE AGREEMENT (Filed With SEC on March 7, 2006)

SEVERANCE AGREEMENT (Filed With SEC on March 16, 2005)

SEVERANCE AGREEMENT (Filed With SEC on August 9, 2004)

EMPLOYMENT AGREEMENT (Filed With SEC on August 9, 2004)

VOTING AGREEMENT (Filed With SEC on July 13, 2004)

NON-COMPETITION AGREEMENT (Filed With SEC on July 13, 2004)

SEPARATION AND RELEASE AGREEMENT (Filed With SEC on March 12, 2004)

COLUMBIA BANKING SYSTEM, INC. (Filed With SEC on March 12, 2004)

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Columbia Banking System, Inc. Contracts & Agreements