<!--HTML document created with Certent Disclosure Management 6.11.0.1-->
<!--Created on: 10/27/2017 2:43:59 PM-->
<html>
	<head>
		<title>
			Castle Rock 8-K
		</title>
	</head>
	<body><div style="margin-left:72pt;margin-right:72pt;">
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 18pt">
			<a name="_GoBack"></a><font style="display: inline;font-weight:bold;font-size:18pt;">UNITED STATES</font><br /><font style="display: inline;font-weight:bold;font-size:18pt;">SECURITIES AND EXCHANGE COMMISSION</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-weight:bold;font-size:10pt;">Washington, D.C. 20549</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 18pt">
			<font style="display: inline;font-weight:bold;font-size:18pt;">FORM&nbsp;8-K</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 12pt">
			<font style="display: inline;font-weight:bold;">CURRENT REPORT</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 12pt">
			<font style="display: inline;font-weight:bold;">Pursuant to Section&nbsp;13 OR 15(d)&nbsp;of the Securities Exchange Act of 1934</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">Date of Report (Date of earliest event reported): </font><font style="display: inline;font-weight:bold;font-size:10pt;">October 27, 2017</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 18pt">
			<font style="display: inline;font-weight:bold;font-size:18pt;">Guaranty Bancorp</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">(Exact name of registrant as specified in its charter)</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<div style="width:100%"><table cellpadding="0" cellspacing="0" align="center" style="border-collapse:collapse;width: 100.00%;margin-left:0pt;">
			<tr>
				<td valign="top" style="width:32.00%;padding:0pt;">
					<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-weight:bold;font-size:10pt;">Delaware</font></p>
				</td>
				<td valign="bottom" style="width:02.00%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 1pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td valign="top" style="width:32.00%;padding:0pt;">
					<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-weight:bold;font-size:10pt;">000-51556</font></p>
				</td>
				<td valign="bottom" style="width:02.00%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 1pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td valign="top" style="width:32.00%;padding:0pt;">
					<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-weight:bold;font-size:10pt;">41-2150446</font></p>
				</td>
			</tr>
			<tr>
				<td valign="top" style="width:32.00%;padding:0pt;">
					<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-size:10pt;">(State or other jurisdiction of</font></p>
				</td>
				<td valign="bottom" style="width:02.00%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 1pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td valign="top" style="width:32.00%;padding:0pt;">
					<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-size:10pt;">(Commission</font></p>
				</td>
				<td valign="bottom" style="width:02.00%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 1pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td valign="top" style="width:32.00%;padding:0pt;">
					<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-size:10pt;">(IRS Employer</font></p>
				</td>
			</tr>
			<tr>
				<td valign="top" style="width:32.00%;padding:0pt;">
					<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-size:10pt;">incorporation)</font></p>
				</td>
				<td valign="bottom" style="width:02.00%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 1pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td valign="top" style="width:32.00%;padding:0pt;">
					<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-size:10pt;">File Number)</font></p>
				</td>
				<td valign="bottom" style="width:02.00%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 1pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td valign="top" style="width:32.00%;padding:0pt;">
					<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-size:10pt;">Identification No.)</font></p>
				</td>
			</tr>
		</table></div>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<div style="width:100%"><table cellpadding="0" cellspacing="0" align="center" style="border-collapse:collapse;width: 100.00%;margin-left:0pt;">
			<tr>
				<td valign="top" style="width:49.00%;padding:0pt;">
					<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-weight:bold;font-size:10pt;">1331 Seventeenth St., Suite&nbsp;200</font></p>
					<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-weight:bold;font-size:10pt;">Denver, CO</font></p>
				</td>
				<td valign="bottom" style="width:02.00%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 1pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td valign="bottom" style="width:49.00%;padding:0pt;">
					<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-weight:bold;font-size:10pt;">80202</font></p>
				</td>
			</tr>
			<tr>
				<td valign="top" style="width:49.00%;padding:0pt;">
					<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-size:10pt;">(Address of principal executive offices)</font></p>
				</td>
				<td valign="bottom" style="width:02.00%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 1pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td valign="top" style="width:49.00%;padding:0pt;">
					<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-size:10pt;">(Zip Code)</font></p>
				</td>
			</tr>
		</table></div>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-weight:bold;font-size:10pt;">(303) 675-1194</font><br /><font style="display: inline;font-size:10pt;">(Registrant&#x2019;s telephone number, including area code)</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-weight:bold;font-size:10pt;">None</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">(Former name or former address, if changed since last report)</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Check the appropriate box below if the Form&nbsp;8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">&#x2610;</font><font style="display: inline;font-size:10pt;">&nbsp;&nbsp;&nbsp;&nbsp; Written communications pursuant to Rule&nbsp;425 under the Securities Act (17 CFR 230.425)</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">&#x2610;</font><font style="display: inline;font-size:10pt;">&nbsp;&nbsp;&nbsp; Soliciting material pursuant to Rule&nbsp;14a-12 under the Exchange Act (17 CFR 240.14a -12)</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">&#x2610;</font><font style="display: inline;font-size:10pt;">&nbsp;&nbsp;&nbsp; Pre-commencement communications pursuant to Rule&nbsp;14d-2(b)&nbsp;under the Exchange Act (17 CFR 240.14d-2(b))</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">&#x2610;</font><font style="display: inline;font-size:10pt;">&nbsp;&nbsp;&nbsp; Pre-commencement communications pursuant to Rule&nbsp;13e-4(c)&nbsp;under the Exchange Act (17 CFR 240.13e-4(c))</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">&#xFEFF;</font>
		</p>
		<p style="margin:0pt;text-indent:24.5pt;text-align:justify;text-justify:inter-ideograph;border-bottom:1pt none #D9D9D9 ;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:9.5pt;">Indicate by check mark whether the registrant is an emerging growth company as defined in rule 405 of the Secur</font><font style="display: inline;font-size:10pt;">ities Act of 1933 (17 CFR &#xA7;230.405) or Rule 12-b2 of the Securities Exchange Act of 1934 (17 CFR &#xA7;240.12b-2). </font>
		</p>
		<p style="margin:0pt;text-indent:24.5pt;text-align:justify;text-justify:inter-ideograph;border-top:1pt none #D9D9D9 ;border-bottom:1pt none #D9D9D9 ;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">&nbsp;</font>
		</p>
		<p style="margin:0pt;text-indent:24.5pt;text-align:justify;text-justify:inter-ideograph;border-top:1pt none #D9D9D9 ;border-bottom:1pt none #D9D9D9 ;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">Emerging growth company &nbsp;</font><font style="display: inline;font-family:MS Mincho;font-size:10pt;">&#x2610;</font><font style="display: inline;font-size:10pt;">&nbsp; &nbsp;</font>
		</p>
		<p style="margin:0pt;border-top:1pt none #D9D9D9 ;border-bottom:1pt none #D9D9D9 ;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">&nbsp;</font>
		</p>
		<p style="margin:0pt;text-indent:24.5pt;text-align:justify;text-justify:inter-ideograph;border-top:1pt none #D9D9D9 ;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. &nbsp;</font><font style="display: inline;font-family:MS Mincho;font-size:10pt;">&#x2610;</font><font style="display: inline;font-size:10pt;">&nbsp; &nbsp;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 12pt">
			<font style="display: inline;">&#xFEFF;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 1pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 12pt">
			<font style="display: inline;">&#xFEFF;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 12pt">

		</p>
		<p><font size="1"> </font></p><hr size="3" style="color:#999999" width="100%" align="center"></hr><p style="page-break-after:always">&nbsp;</p>
		<p style="margin:0pt;font-family:Times New Roman;;font-size: 12pt"><font style="display: inline;"></font><font style="display: inline;font-weight:bold;font-size:10pt;">Item&nbsp;2.01</font><font style="display: inline;font-size:10pt;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </font><font style="display: inline;font-weight:bold;font-size:10pt;">Completion of Acquisition or Disposition of Assets. </font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-weight:bold;font-size:10pt;">&#xFEFF;</font>
		</p>
		<p style="margin:0pt;text-indent:36pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;color:#000000;font-size:10pt;">On October 27, 2017, pursuant to the Agreement and Plan of Reorganization (the &#x201C;Merger Agreement&#x201D;) dated as of July 18, 2017 between Guaranty Bancorp (&#x201C;Guaranty&#x201D;) and Castle Rock Bank Holding Company (&#x201C;Castle Rock&#x201D;), Guaranty completed its acquisition of Castle Rock. In order to effect the acquisition, Castle Rock was merged (the &#x201C;Merger&#x201D;) with and into Guaranty, with Guaranty as the surviving corporation. Pursuant to the Merger Agreement, Guaranty issued a total of 840,639 shares of common stock to the shareholders of Castle Rock. Based on Guaranty&#x2019;s closing stock price of $29.</font><font style="display: inline;color:#000000;font-size:10pt;">05 on October 27</font><font style="display: inline;color:#000000;font-size:10pt;">, 2017, Merger consideration for each share of Castle Rock common stock was calculated at $2,</font><font style="display: inline;color:#000000;font-size:10pt;">086.69</font><font style="display: inline;color:#000000;font-size:10pt;">. Guaranty expects to complete the conversion of the systems of Castle Rock and to change Castle Rock&#x2019;s name on or about December 4, 2017.</font>
		</p>
		<p style="margin:0pt;text-indent:36pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;color:#000000;font-size:10pt;">&#xFEFF;</font>
		</p>
		<p style="margin:0pt;text-indent:36pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;color:#000000;font-size:10pt;">As of September 30, 2017, Castle Rock had approximately $145 million in total assets.</font>
		</p>
		<p style="margin:0pt;text-indent:36pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;color:#000000;font-size:10pt;">&#xFEFF;</font>
		</p>
		<p style="margin:0pt;text-indent:36pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;color:#000000;font-size:10pt;">The Guaranty common stock issued in connection with the Merger was registered under the Securities Act of 1933, as amended, pursuant to a registration statement on Form S-4 (File No. 333-220287), filed with the Securities and Exchange Commission (&#x201C;SEC&#x201D;) and declared effective on September 14, 2017 (the &#x201C;Registration Statement&#x201D;). The definitive proxy statement/prospectus (the &#x201C;Proxy Statement/Prospectus&#x201D;) included in the Registration Statement contains additional information about the Merger. </font>
		</p>
		<p style="margin:0pt;text-indent:36pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;color:#000000;font-size:10pt;">&#xFEFF;</font>
		</p>
		<p style="margin:0pt;text-indent:36pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;color:#000000;font-size:10pt;">The Merger Agreement, which was included as Appendix&nbsp;A to the Proxy Statement/Prospectus and is incorporated herein by reference, and this summary are not intended to modify or supplement any factual disclosures about Guaranty, and should not be relied upon as disclosure about Guaranty without consideration of the periodic and current reports and statements that Guaranty files with the SEC. The terms of the Merger Agreement govern the contractual rights and relationships, and allocate risks, among the parties in relation to the transactions contemplated by the Merger Agreement. In particular, the representations and warranties made by the parties to each other in the Merger Agreement reflect negotiations between, and are solely for the benefit of, the parties thereto and may be limited or modified by a variety of factors, including: subsequent events, information included in public filings, disclosures made during negotiations, correspondence between the parties and disclosure schedules to the Merger Agreement. Accordingly, the representations and warranties may not describe the actual state of affairs at the date they were made or at any other time and you should not rely on them as statements of fact. Guaranty acknowledges that, notwithstanding the inclusion of the foregoing cautionary statements, it is responsible for considering whether additional specific disclosures of material information regarding material contractual provisions are required to make the statements in this Current Report on Form 8</font><font style="display: inline;color:#000000;font-size:10pt;">&#8209;K not misleading. </font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;color:#000000;font-size:10pt;">&#xFEFF;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-weight:bold;font-size:10pt;">Item 9.01&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial Statements and Exhibits.</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">(d)&nbsp;&nbsp; Exhibits</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">The following exhibit is filed with this Current Report on Form&nbsp;8-K:</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<div style="width:100%"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;width: 100.00%;margin-left:0pt;">
			<tr>
				<td colspan="2" valign="bottom" style="width:12.00%;border-top:1pt none #D9D9D9 ;border-left:1pt none #D9D9D9 ;border-bottom:1pt none #D9D9D9 ;border-right:1pt none #D9D9D9 ;height:1.00pt;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;height:1.00pt;overflow:hidden;font-size: 1pt">
						<font style="display: inline;font-size:1pt;">&#xFEFF;</font></p>
				</td>
				<td valign="bottom" style="width:03.00%;border-top:1pt none #D9D9D9 ;border-left:1pt none #D9D9D9 ;border-bottom:1pt none #D9D9D9 ;border-right:1pt none #D9D9D9 ;height:1.00pt;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;height:1.00pt;overflow:hidden;font-size:0pt;">
						&nbsp;</p>
				</td>
				<td valign="bottom" style="width:85.00%;border-top:1pt none #D9D9D9 ;border-left:1pt none #D9D9D9 ;border-bottom:1pt none #D9D9D9 ;border-right:1pt none #D9D9D9 ;height:1.00pt;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;height:1.00pt;overflow:hidden;font-size:0pt;">
						&nbsp;</p>
				</td>
			</tr>
			<tr>
				<td colspan="2" valign="bottom" style="width:12.00%;border-top:1pt none #D9D9D9 ;border-left:1pt none #D9D9D9 ;border-bottom:1pt solid #000000 ;border-right:1pt none #D9D9D9 ;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 8pt">
						<font style="display: inline;font-weight:bold;font-size:8pt;">Exhibit&nbsp;No.</font></p>
				</td>
				<td valign="bottom" style="width:03.00%;padding:0pt;">
					<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 1pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td valign="bottom" style="width:85.00%;border-top:1pt none #D9D9D9 ;border-left:1pt none #D9D9D9 ;border-bottom:1pt solid #000000 ;border-right:1pt none #D9D9D9 ;padding:0pt;">
					<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 8pt">
						<font style="display: inline;font-weight:bold;font-size:8pt;">Description</font></p>
				</td>
			</tr>
			<tr>
				<td colspan="2" valign="top" style="width:12.00%;border-top:1pt none #D9D9D9 ;border-left:1pt none #D9D9D9 ;border-bottom:1pt none #D9D9D9 ;border-right:1pt none #D9D9D9 ;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-size:10pt;">Exhibit 2.1</font></p>
				</td>
				<td valign="bottom" style="width:03.00%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 12pt">
						&nbsp;</p>
				</td>
				<td valign="top" style="width:85.00%;border-top:1pt none #D9D9D9 ;border-left:1pt none #D9D9D9 ;border-bottom:1pt none #D9D9D9 ;border-right:1pt none #D9D9D9 ;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-size:10pt;">Agreement and Plan of Reorganization dated July 18, 2017 (incorporated by reference to </font><a href="http://www.sec.gov/Archives/edgar/data/1324410/000132441017000041/gbnk-20170719xex2_1.htm" style="-sec-extract:exhibit"><font style="display: inline;font-size:10pt;">Exhibit 2.1 to the Registrant&#x2019;s form 8-K filed on July 19, 2017</font></a><font style="display: inline;font-size:10pt;">).</font></p>
				</td>
			</tr>
			<tr>
				<td colspan="2" valign="top" style="width:12.00%;border-top:1pt none #D9D9D9 ;border-left:1pt none #D9D9D9 ;border-bottom:1pt none #D9D9D9 ;border-right:1pt none #D9D9D9 ;height:6.75pt;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-size:10pt;">&#xFEFF;</font></p>
				</td>
				<td valign="bottom" style="width:03.00%;height:6.75pt;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;overflow: hidden;font-size:0pt;">
						&nbsp;</p>
				</td>
				<td valign="top" style="width:85.00%;border-top:1pt none #D9D9D9 ;border-left:1pt none #D9D9D9 ;border-bottom:1pt none #D9D9D9 ;border-right:1pt none #D9D9D9 ;height:6.75pt;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;overflow: hidden;font-size:0pt;">
						&nbsp;</p>
				</td>
			</tr>
			<tr>
				<td valign="top" style="width:02.00%;padding:0pt;">
					<p style="margin:0pt;text-align:justify;text-justify:inter-ideograph;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-size:10pt;">*</font></p>
				</td>
				<td colspan="3" valign="top" style="width:auto;padding:0pt;">
					<p style="margin:0pt;text-align:justify;text-justify:inter-ideograph;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-size:10pt;">The schedules have been omitted pursuant to Item 601(b)(2) of Regulation S-K and will be provided to the SEC upon request. </font></p>
				</td>
			</tr>
		</table></div>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-weight:bold;font-size:10pt;">&#xFEFF;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">

		</p>
		<p><font size="1"> </font></p><hr size="3" style="color:#999999" width="100%" align="center"></hr><p style="page-break-after:always">&nbsp;</p>
		<p style="margin:0pt;font-family:Times New Roman;;font-size: 10pt"><font style="display: inline;font-weight:bold;font-size:10pt;"></font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-weight:bold;font-size:10pt;">SIGNATURES</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;text-indent:36pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</font>
		</p>
		<p style="margin:0pt;text-align:center;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<div style="width:100%"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;width: 100.00%;margin-left:0pt;">
			<tr>
				<td valign="top" style="width:50.00%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 1pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td colspan="2" valign="top" style="width:50.00%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-weight:bold;font-size:10pt;">GUARANTY BANCORP</font></p>
				</td>
			</tr>
			<tr>
				<td valign="top" style="width:50.00%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td colspan="2" valign="top" style="width:50.00%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
			</tr>
			<tr>
				<td valign="top" style="width:50.00%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td valign="top" style="width:04.44%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td valign="top" style="width:45.56%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
			</tr>
			<tr>
				<td valign="top" style="width:50.00%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 1pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td valign="top" style="width:04.44%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-size:10pt;">By:</font></p>
				</td>
				<td valign="top" style="width:45.56%;border-top:1pt none #D9D9D9 ;border-left:1pt none #D9D9D9 ;border-bottom:1pt solid #000000 ;border-right:1pt none #D9D9D9 ;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-size:10pt;">/s/ Christopher G. Treece</font></p>
				</td>
			</tr>
			<tr>
				<td valign="top" style="width:50.00%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 1pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td valign="top" style="width:04.44%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 1pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td valign="top" style="width:45.56%;border-top:1pt none #D9D9D9 ;border-left:1pt none #D9D9D9 ;border-bottom:1pt none #D9D9D9 ;border-right:1pt none #D9D9D9 ;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-size:10pt;">Name: Christopher G. Treece</font></p>
				</td>
			</tr>
			<tr>
				<td valign="top" style="width:50.00%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 1pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td valign="top" style="width:04.44%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 1pt">
						<font style="display: inline;">&nbsp;</font></p>
				</td>
				<td valign="top" style="width:45.56%;padding:0pt;">
					<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
						<font style="display: inline;font-size:10pt;">Title: Executive Vice President, Chief Financial Officer and Secretary</font></p>
				</td>
			</tr>
		</table></div>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">Date:&nbsp; October 27, 2017</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;font-size:10pt;">&#xFEFF;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 12pt">
			<font style="display: inline;">&#xFEFF;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p style="margin:0pt;font-family:Times New Roman;font-size: 10pt">
			<font style="display: inline;">&nbsp;</font>
		</p>
		<p><font size="1"> </font></p><hr size="3" style="color:#999999" width="100%" align="center"></hr>
	</div></body>
</html>
[{"type": "8-K", "sequence": "1", "filename": "gbnk-20171027x8k.htm", "description": "8-K", "secsgml_size_bytes": 31819}]
{"company-data": {"conformed-name": "Guaranty Bancorp", "cik": "0001324410", "assigned-sic": "6022", "irs-number": "412150446", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-51556", "film-number": "171159960"}, "business-address": {"street1": "1331 SEVENTEENTH STREET, SUITE 200", "city": "DENVER", "state": "CO", "zip": "80202", "phone": "303-296-9600"}, "mail-address": {"street1": "1331 SEVENTEENTH STREET, SUITE 200", "city": "DENVER", "state": "CO", "zip": "80202"}, "former-company": {"former-conformed-name": "Centennial Bank Holdings, Inc.", "date-changed": "20050420"}}
Castle Rock 8-K
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported):
October 27, 2017
Guaranty Bancorp
(Exact name of registrant as specified in its charter)
Delaware
000-51556
41-2150446
(State or other jurisdiction of
(Commission
(IRS Employer
incorporation)
File Number)
Identification No.)
1331 Seventeenth St., Suite 200
Denver, CO
80202
(Address of principal executive offices)
(Zip Code)
(303) 675-1194
(Registrant's telephone number, including area code)
None
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
☐
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a -12)
☐
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
﻿
Indicate by check mark whether the registrant is an emerging growth company as defined in rule 405 of the Secur
ities Act of 1933 (17 CFR §230.405) or Rule 12-b2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).
Emerging growth company
☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
☐
﻿
﻿
Item 2.01
Completion of Acquisition or Disposition of Assets.
﻿
On October 27, 2017, pursuant to the Agreement and Plan of Reorganization (the "Merger Agreement") dated as of July 18, 2017 between Guaranty Bancorp ("Guaranty") and Castle Rock Bank Holding Company ("Castle Rock"), Guaranty completed its acquisition of Castle Rock. In order to effect the acquisition, Castle Rock was merged (the "Merger") with and into Guaranty, with Guaranty as the surviving corporation. Pursuant to the Merger Agreement, Guaranty issued a total of 840,639 shares of common stock to the shareholders of Castle Rock. Based on Guaranty's closing stock price of $29.
05 on October 27
, 2017, Merger consideration for each share of Castle Rock common stock was calculated at $2,
086.69
. Guaranty expects to complete the conversion of the systems of Castle Rock and to change Castle Rock's name on or about December 4, 2017.
﻿
As of September 30, 2017, Castle Rock had approximately $145 million in total assets.
﻿
The Guaranty common stock issued in connection with the Merger was registered under the Securities Act of 1933, as amended, pursuant to a registration statement on Form S-4 (File No. 333-220287), filed with the Securities and Exchange Commission ("SEC") and declared effective on September 14, 2017 (the "Registration Statement"). The definitive proxy statement/prospectus (the "Proxy Statement/Prospectus") included in the Registration Statement contains additional information about the Merger.
﻿
The Merger Agreement, which was included as Appendix A to the Proxy Statement/Prospectus and is incorporated herein by reference, and this summary are not intended to modify or supplement any factual disclosures about Guaranty, and should not be relied upon as disclosure about Guaranty without consideration of the periodic and current reports and statements that Guaranty files with the SEC. The terms of the Merger Agreement govern the contractual rights and relationships, and allocate risks, among the parties in relation to the transactions contemplated by the Merger Agreement. In particular, the representations and warranties made by the parties to each other in the Merger Agreement reflect negotiations between, and are solely for the benefit of, the parties thereto and may be limited or modified by a variety of factors, including: subsequent events, information included in public filings, disclosures made during negotiations, correspondence between the parties and disclosure schedules to the Merger Agreement. Accordingly, the representations and warranties may not describe the actual state of affairs at the date they were made or at any other time and you should not rely on them as statements of fact. Guaranty acknowledges that, notwithstanding the inclusion of the foregoing cautionary statements, it is responsible for considering whether additional specific disclosures of material information regarding material contractual provisions are required to make the statements in this Current Report on Form 8
‑K not misleading.
﻿
Item 9.01       Financial Statements and Exhibits.
(d)   Exhibits
The following exhibit is filed with this Current Report on Form 8-K:
﻿
Exhibit No.
Description
Exhibit 2.1
Agreement and Plan of Reorganization dated July 18, 2017 (incorporated by reference to
Exhibit 2.1 to the Registrant's form 8-K filed on July 19, 2017
).
﻿
*
The schedules have been omitted pursuant to Item 601(b)(2) of Regulation S-K and will be provided to the SEC upon request.
﻿
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
GUARANTY BANCORP
By:
/s/ Christopher G. Treece
Name: Christopher G. Treece
Title: Executive Vice President, Chief Financial Officer and Secretary
Date:  October 27, 2017
﻿
﻿