<SEC-DOCUMENT>0000887343-24-000171.txt : 20240408
<SEC-HEADER>0000887343-24-000171.hdr.sgml : 20240408
<ACCEPTANCE-DATETIME>20240408163758
ACCESSION NUMBER:		0000887343-24-000171
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240408
DATE AS OF CHANGE:		20240408

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COLUMBIA BANKING SYSTEM, INC.
		CENTRAL INDEX KEY:			0000887343
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		ORGANIZATION NAME:           	02 Finance
		IRS NUMBER:				911422237
		STATE OF INCORPORATION:			WA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20288
		FILM NUMBER:		24830069

	BUSINESS ADDRESS:	
		STREET 1:		1301 A STREET
		CITY:			TACOMA
		STATE:			WA
		ZIP:			98402
		BUSINESS PHONE:		2533051900

	MAIL ADDRESS:	
		STREET 1:		1301 A STREET
		CITY:			TACOMA
		STATE:			WA
		ZIP:			98402

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COLUMBIA BANKING SYSTEM INC
		DATE OF NAME CHANGE:	19930328
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>cbsidef14aproxysupplement2.htm
<DESCRIPTION>DEFA14A
<TEXT>
<html><head>
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<title>Document</title></head><body><div id="i93cb4eca6a2b4a868c5b29ffa3dcffe8_40"></div><div style="min-height:72pt;width:100%"><div><font><br></font></div></div><div style="text-align:justify"><font><br></font></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:25pt"><td colspan="3" style="border-top:7pt double #000000;padding:0 1pt"></td></tr></table></div><div style="margin-top:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:120%">UNITED STATES<br>SECURITIES AND EXCHANGE COMMISSION</font></div><div style="text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">Washington, D.C. 20549</font></div><div style="margin-top:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:120%">SCHEDULE 14A</font></div><div style="margin-top:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:120%">Proxy Statement Pursuant to Section 14(a) <br>of the Securities Exchange Act of 1934</font></div><div style="margin-bottom:12pt;text-align:justify"><font><br></font></div><div style="padding-left:6.05pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.839%"><tr><td style="width:1.0%"></td><td style="width:4.839%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:92.961%"></td><td style="width:0.1%"></td></tr><tr><td colspan="6" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="margin-bottom:12pt;text-align:justify"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Filed by the Registrant </font><font style="color:#000000;font-family:'Wingdings 2',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#9746;</font></div></td></tr><tr><td colspan="6" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="margin-bottom:12pt;text-align:justify"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Filed by a Party other than the Registrant </font><font style="color:#000000;font-family:'Wingdings 2',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#9744;</font></div></td></tr><tr><td colspan="6" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Check the appropriate box&#58;</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><font style="color:#000000;font-family:'Wingdings 2',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#9744;</font></td><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Preliminary Proxy Statement</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><font style="color:#000000;font-family:'Wingdings 2',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#9744;</font></td><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><font style="color:#000000;font-family:'Wingdings 2',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#9744;</font></td><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Definitive Proxy Statement</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><font style="color:#000000;font-family:'Wingdings 2',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#9746;</font></td><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Definitive Additional Materials</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><font style="color:#000000;font-family:'Wingdings 2',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#9744;</font></td><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Soliciting Material under &#167;240.14a-12</font></td></tr></table></div><div style="padding-left:7.35pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="padding-right:-1.31pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:100%">Columbia Banking System, Inc.</font></div></td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(Name of Registrant as Specified In Its Charter)</font></td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(Name of Person(s) Filing Proxy Statement, if other than the Registrant)</font></td></tr></table></div><div style="margin-bottom:12pt;text-align:justify"><font><br></font></div><div style="padding-left:6.05pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.839%"><tr><td style="width:1.0%"></td><td style="width:4.839%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:92.961%"></td><td style="width:0.1%"></td></tr><tr><td colspan="6" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Payment of Filing Fee (Check the appropriate box)&#58;</font></td></tr><tr><td colspan="6" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Check the appropriate box&#58;</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><font style="color:#000000;font-family:'Wingdings 2',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#9746;</font></td><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">No fee required.</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><font style="color:#000000;font-family:'Wingdings 2',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#9744;</font></td><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Fee paid previously with preliminary materials.</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><font style="color:#000000;font-family:'Wingdings 2',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#9744;</font></td><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.</font></td></tr></table></div><div style="text-align:justify"><font><br></font></div><div style="text-align:justify"><font><br></font></div><div style="text-align:justify"><font><br></font></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:25pt"><td colspan="3" style="border-top:7pt double #000000;padding:0 1pt"></td></tr></table></div><div style="text-align:justify"><font><br></font></div><div style="height:72pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><font><br></font></div></div></div><div id="i93cb4eca6a2b4a868c5b29ffa3dcffe8_43"></div><hr style="page-break-after:always"><div style="min-height:72pt;width:100%"><div style="text-align:justify"><font><br></font></div></div><div style="margin-bottom:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">SUPPLEMENT TO PROXY STATEMENT DATED MARCH 27, 2024<br>FOR THE 2024 ANNUAL MEETING OF SHAREHOLDERS<br>TO BE HELD ON MAY 8, 2024</font></div><div style="margin-bottom:12pt;text-align:justify"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">This supplement to the Proxy Statement, dated April 8, 2024 (this &#8220;Supplement&#8221;), supplements the definitive proxy statement filed by Columbia Banking System, Inc. (the &#8220;Company&#8221;) with the U.S. Securities and Exchange Commission (the &#8220;SEC&#8221;) on March 27, 2024 (the &#8220;2024 Proxy Statement&#8221;) and made available to the Company&#8217;s shareholders in connection with the solicitation of proxies by the Company&#8217;s Board of Directors for use at the 2024 Annual Meeting of Shareholders, scheduled to be held virtually on Wednesday, May 8, 2024 at 10&#58;00 a.m. Pacific Time (the &#8220;Annual Meeting&#8221;). This Supplement is being filed with the SEC and made available to shareholders on or about April 8, 2024.</font></div><div style="margin-bottom:12pt;text-align:justify"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">This Supplement updates the disclosure in the 2024 Proxy Statement in the section on page 91 titled &#8220;</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-style:italic;font-weight:400;line-height:120%">Vote Required and Board Recommendation</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#8221; regarding the voting requirements for Proposal&#160;4&#8212;Amendment to Amended and Restated Employee Stock Purchase Plan. That section is hereby revised as follows&#58;</font></div><div style="margin-bottom:12pt;text-align:justify"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">The first sentence in the section is hereby revised in its entirety to read as follows (with new text underlined and bolded and deleted text struckthrough)&#58;</font></div><div style="margin-bottom:12pt;padding-left:36pt;text-align:justify"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">The affirmative vote FOR by a majority of those shares present at the virtual Annual Meeting or by proxy and </font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%;text-decoration:line-through">entitled to vote are</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%"> </font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%;text-decoration:underline">voting on this proposal is</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%"> required to amend the ESPP. </font></div><div style="margin-bottom:12pt;text-align:justify"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">This Supplement updates the disclosure in the 2024 Proxy Statement in the section on page 94 titled &#8220;</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-style:italic;font-weight:400;line-height:120%">Vote Required and Board Recommendation</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#8221; regarding the voting requirements for Proposal&#160;5&#8212;Ratification of Appointment of Independent Registered Public Accounting Firm. That section is hereby revised as follows&#58;</font></div><div style="margin-bottom:12pt;text-align:justify"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">The first sentence in the section is hereby revised in its entirety to read as follows (with new text underlined and bolded and deleted text struckthrough)&#58;</font></div><div style="margin-bottom:12pt;padding-left:36pt;text-align:justify"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">The affirmative vote FOR by a majority of those shares present at the virtual meeting or by proxy and </font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%;text-decoration:line-through">entitled to vote are</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%"> </font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%;text-decoration:underline">voting on this proposal is</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%"> required to ratify the appointment of Deloitte as our independent public accounting firm. </font></div><div style="margin-bottom:12pt;text-align:justify"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Except as described in this Supplement, none of the items or information presented in the 2024 Proxy Statement is affected by this Supplement. This Supplement does not provide all of the information that is important to your voting decisions at the Annual Meeting, and the 2024 Proxy Statement contains other important additional information. </font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">This Supplement should be read in conjunction with the 2024 Proxy Statement.</font></div><div style="margin-bottom:12pt;text-align:justify"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">If you have already returned your proxy or voting instruction card or provided voting instructions, you do not need to take any action unless you wish to change your vote. This Supplement does not change the proposals to be acted upon at the Annual Meeting, which are described in the 2024 Proxy Statement.</font></div><div style="height:72pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:justify"><font><br></font></div></div></div></body></html>
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</DOCUMENT>
</SEC-DOCUMENT>
