<SEC-DOCUMENT>0001171843-26-003709.txt : 20260527
<SEC-HEADER>0001171843-26-003709.hdr.sgml : 20260527
<ACCEPTANCE-DATETIME>20260527060009
ACCESSION NUMBER:		0001171843-26-003709
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20260527
FILED AS OF DATE:		20260527
DATE AS OF CHANGE:		20260527

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Colliers International Group Inc.
		CENTRAL INDEX KEY:			0000913353
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE [6500]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		EIN:				000000000
		STATE OF INCORPORATION:			A6
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		6-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36898
		FILM NUMBER:		261022032

	BUSINESS ADDRESS:	
		STREET 1:		1140 BAY STREET
		STREET 2:		SUITE 4000
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M5S 2B4
		BUSINESS PHONE:		(416) 960-9500

	MAIL ADDRESS:	
		STREET 1:		1140 BAY STREET
		STREET 2:		SUITE 4000
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M5S 2B4

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FIRSTSERVICE CORP
		DATE OF NAME CHANGE:	19931013
</SEC-HEADER>
<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>f6k_052626.htm
<DESCRIPTION>FORM 6-K
<TEXT>
<html><head><title></title></head><body style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><div align="center"><div style="margin-top: 3pt; margin-bottom: 12pt;"><div style="font-size: 1pt; border-top: Black 2.5pt solid; border-bottom: Black 1.1pt solid; width: 100%;">&#160;</div></div><p style="font-size: 14pt;" align="center"><strong>UNITED STATES</strong><br /><strong>SECURITIES AND EXCHANGE COMMISSION</strong><br /><strong>Washington, D.C. 20549</strong></p><p style="font-size: 14pt; text-transform: uppercase;" align="center"><u><strong>Form 6-K</strong></u></p><p style="text-align: center;"><strong></strong></p><p style="text-align: center;"><strong>REPORT OF FOREIGN PRIVATE ISSUER </strong></p><p style="text-align: center;"><strong>PURSUANT TO RULE 13a-16 OR 15d-16 UNDER <br />THE SECURITIES EXCHANGE ACT OF 1934</strong></p><p style="text-align: center;">For the month of May 2026<br />Commission File Number: 001-36898</p><p style="text-align: center;"><font style="font-size: 12pt;"><strong>COLLIERS INTERNATIONAL GROUP INC.</strong></font><br />(Translation of registrant's name into English)</p><p style="text-align: center;"><strong>1140 Bay Street, Suite 4000<br /> Toronto, Ontario, Canada<br /> M5S 2B4</strong><br />(Address of principal executive office)</p></div><p><font style="font-size: 10pt;">Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.</font><br /><font style="font-size: 10pt;">Form 20-F [ &#160; ] &#160;&#160;&#160;&#160;&#160;Form 40-F [ X ]</font></p><!--<p><font style="font-size: 10pt;">Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): [&#160; ]</font></p><p><font style="font-size: 10pt;">Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): [  ]</font></p><p style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;"><font style="font-size: 10pt;"><font style="font-size: 10.0pt;">Indicate by check mark whether by furnishing the information contained in this Form, the Registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934:</font></font></p><p style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;"><font style="font-size: 10pt;"><font style="font-size: 10.0pt;">Yes [&#160; ]&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; No [X]</font></font></p><p style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;">&#160;</p><p style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;"><font style="font-size: 10pt;"><font style="font-size: 10.0pt;">If &#8220;Yes&#8221; is marked, indicate the file number assigned to the Registrant in connection with Rule 12g3-2(b):&#160; N/A</font></font></p>--><hr style="page-break-after: always;" noshade="noshade" /><p style="text-align: left;"><strong>SIGNATURE</strong></p><p>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, thereunto duly authorized.</p><table style="font-family: Times New Roman; font-size: 10pt;" border="0" width="100%" cellspacing="0" cellpadding="0"><tr valign="top"><td width="47%">&#160;</td><td width="6%">&#160;</td><td style="text-align: left;" align="center" width="47%"><strong>COLLIERS INTERNATIONAL GROUP INC.&#160;&#160;&#160;&#160;</strong></td></tr><tr valign="top"><td width="47%">&#160;</td><td width="6%">&#160;</td><td style="text-align: left;" align="center" width="47%">&#160;</td></tr><tr valign="top"><td width="47%">&#160;</td><td width="6%">&#160;</td><td align="center" width="47%">&#160;</td></tr><tr valign="top"><td width="47%">&#160;</td><td width="6%">&#160;</td><td style="text-align: left;" align="center" width="47%"></td></tr><tr valign="top"><td width="47%">Date: May 27, 2026</td><td width="6%">&#160;</td><td style="text-decoration: underline; text-align: left;" align="center" width="47%"><em>/s/ Christian Mayer</em></td></tr><tr valign="top"><td width="47%">&#160;</td><td width="6%">&#160;</td><td style="text-align: left;" align="center" width="47%">Name: Christian Mayer</td></tr><tr valign="top"><td width="47%">&#160;</td><td width="6%">&#160;</td><td style="text-align: left;" align="center" width="47%">Title: Global Chief Financial Officer &<br /> Chief Executive Officer, Commercial Real Estate</td></tr><tr valign="top"><td width="47%">&#160;</td><td width="6%">&#160;</td><td style="text-align: left;" align="center" width="47%"></td></tr></table><hr style="page-break-after: always;" noshade="noshade" /><p><p style="text-align: left;"><font style="font-size: 10pt;"><strong>EXHIBIT INDEX</strong></font> <font style="font-size: 10pt;">&#160;</font></p><table style="font-size: 10pt;" border="0" cellspacing="0" cellpadding="0"><tr><td><font style="font-size: 10pt;"><strong>Exhibit</strong></font></td><td width="20"><font style="font-size: 10pt;">&#160;</font></td><td><font style="font-size: 10pt;"><strong>Description of Exhibit</strong></font></td></tr><tr><td>&#160;</td><td width="20"><font style="font-size: 10pt;">&#160;</font></td><td><font style="font-size: 10pt;">&#160;</font></td></tr><tr><td style="vertical-align: top;"><font style="font-size: 10pt;"><a href="exh_991.htm">99.1</a></font></td><td width="20"><font style="font-size: 10pt;">&#160;</font></td><td style="vertical-align: top;"><font style="font-size: 10pt;"><a href="exh_991.htm">Press release dated May 27, 2026.</a> </font></td></tr></table></body></html>
</TEXT>
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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>exh_991.htm
<DESCRIPTION>PRESS RELEASE
<TEXT>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html lang="en-US"><head><title>EdgarFiling</title><meta content="text/html; charset=windows-1252" ><meta name="GENERATOR" content="MSHTML 8.00.7601.18094" ></head><body bgcolor="#ffffff"><p style="text-align: right;"><strong>EXHIBIT 99.1</strong></p><p style="text-align: center;"><font style="font-size: 14pt;"><strong>Colliers completes acquisition of Ayesa Engineering</strong></font></p><p style="text-align: center;"><strong></strong></p><p>
 <p align="justify">TORONTO, May  27, 2026  (GLOBE NEWSWIRE) -- Colliers (NASDAQ, TSX: CIGI), a global leader in professional services and investment management, announced today it has completed its previously announced acquisition of Ayesa Engineering S.A.U. (&#8220;<strong>Ayesa Engineering&#8221;</strong> or<strong> &#8220;Ayesa</strong>&#8221;), the engineering division of Ayesa Inversiones S.L.U. (&#8220;<strong>Ayesa Group</strong>&#8221;). Ayesa Engineering is a global multidiscipline engineering and project management firm headquartered in Seville, Spain, that provides technical consulting services across four continents. Ayesa&#8217;s leadership team has retained significant equity under Colliers&#8217; unique partnership model and will drive the operations and growth of the business going forward.</p>  <p align="justify">With the addition of Ayesa Engineering&#8217;s more than 3,300 professionals, Colliers&#8217; Engineering segment (&#8220;<strong>Colliers Engineering</strong>&#8221;) now operates in 23 countries with over 11,000 professionals, firmly establishing Colliers Engineering as a leading global consultancy delivering engineering, design, project management, and other technical consulting services across Property &amp; Buildings, Infrastructure &amp; Transportation, Water, and Environmental end markets. </p>  <p align="justify">&#8220;Ayesa is a highly strategic acquisition that meaningfully expands the global scale of our engineering business, strengthens the resilience of our earnings, and underscores the power of our partnership model,&#8221; said Jay Hennick, Global Chairman and Chief Executive Officer of Colliers. &#8220;Our ability to partner with exceptional operators and align them for long-term growth differentiates Colliers. More than 700 of our operators are partners in our engineering business, creating strong alignment, reinforcing our entrepreneurial culture, and driving long-term value creation. Looking ahead, we see significant opportunity to accelerate global growth within our engineering business, both organically and through acquisitions.&#8221;</p>  <p align="justify">&#8220;This acquisition strengthens our ability to serve clients in attractive, high-growth markets across Europe, Latin America, the Middle East and South Asia, while broadening our technical capabilities on a global scale,&#8221; said Elias Mulamoottil, Chief Investment Officer and CEO of Engineering at Colliers. &#8220;That expertise is reflected in Ayesa&#8217;s complex, high-profile projects such as the design and project oversight of the transformation of the Santiago Bernab&#233;u Stadium in Madrid, the design of hundreds of desalination and water distribution facilities across Saudi Arabia, and the design and project oversight of several metro lines globally including the Bogot&#225; Metro in Colombia.&#8221;</p>  <p align="justify">&#8220;Partnering with Colliers creates an exceptional opportunity for our professionals to become significant stakeholders in the business, reinforcing long-term stability and our focus on delivering the best outcomes for clients,&#8221; said Rosal&#237;o Alonso, Chief Executive Officer of Ayesa Engineering. &#8220;It also gives us the ability to leverage Colliers&#8217; significant engineering operations in the U.S., Canada, and Australia, while benefiting from its more than 30-year track record of scaling global businesses and creating long-term value for all stakeholders.&#8221;</p>  <p align="justify">In connection with the transaction, Alantra acted as financial advisor and Ur&#237;a Men&#233;ndez acted as legal advisor to Colliers. Baird and Arcano Partners acted as financial advisors and P&#233;rez-Llorca and Weil, Gotshal &amp; Manges acted as legal advisors to Ayesa Group and its owners, A&amp;M Capital Europe and the Manzanares family.</p>  <p>&#160;&#160;<br ><strong>Colliers Contacts</strong><br >Elias Mulamoottil <br >Chief Investment Officer &amp; CEO, Engineering<br >&#160;&#160;<br >Christian Mayer<br >Chief Financial Officer &amp; CEO, Commercial Real Estate<br >&#160;&#160;<br >(416) 960-9500<br >&#160; &#160;</p>  <p><strong>About Colliers</strong></p>  <p align="justify">Colliers (NASDAQ, TSX: CIGI) is a global diversified professional services and investment management company operating through three industry-leading businesses: Commercial Real Estate, Engineering, and Investment Management. With greater than a 30-year track record of consistent growth and strong recurring cash flows, we scale complementary, high-value businesses that provide essential services across the full asset lifecycle. Our unique partnership philosophy empowers exceptional leaders, preserves our entrepreneurial culture, and ensures meaningful inside ownership &#8212; driving strong alignment and sustained value creation for our shareholders. With $5.7 billion in annual revenues, 24,000 professionals, and $109 billion in assets under management, Colliers is committed to accelerating the success of our clients, investors, and people worldwide. Learn more at&#160;corporate.colliers.com.<br >&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<br ><strong>About Ayesa Engineering</strong><br >Ayesa Engineering is a leading multidisciplinary engineering and project management firm headquartered in Spain. With approximately 3,300 professionals operating in 21 countries, the company delivers innovative design, site supervision, and consultancy services across transportation, water, buildings &amp; cities, and energy sectors. Ayesa Engineering is recognized for its technical excellence and ability to manage complex infrastructure projects for both public and private clients. Its approach combines deep sector expertise with a commitment to sustainability and cutting-edge solutions, making it a trusted partner in shaping the future of global infrastructure. For more information, visit http://www.ayesa.com.&#160;</p> <p></p></body></html>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
