<SEC-DOCUMENT>0001415889-25-014690.txt : 20250528
<SEC-HEADER>0001415889-25-014690.hdr.sgml : 20250528
<ACCEPTANCE-DATETIME>20250528131742
ACCESSION NUMBER:		0001415889-25-014690
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250528
DATE AS OF CHANGE:		20250528

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COGENT COMMUNICATIONS HOLDINGS, INC.
		CENTRAL INDEX KEY:			0001158324
		STANDARD INDUSTRIAL CLASSIFICATION:	COMMUNICATION SERVICES, NEC [4899]
		ORGANIZATION NAME:           	06 Technology
		EIN:				522337274
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	000-51829
		FILM NUMBER:		25993538

	BUSINESS ADDRESS:	
		STREET 1:		2450 N STREET, NW
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20037
		BUSINESS PHONE:		2022954200

	MAIL ADDRESS:	
		STREET 1:		2450 N STREET, NW
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20037

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COGENT COMMUNICATIONS GROUP INC
		DATE OF NAME CHANGE:	20010828

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FERGUSON Lewis H
		CENTRAL INDEX KEY:			0001395643
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		8717 BURDETTE ROAD
		CITY:			BETHESDA
		STATE:			MD
		ZIP:			20817
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
	<headerData>
        <submissionType>144</submissionType>
                <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001395643</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
        <liveTestFlag>LIVE</liveTestFlag>




                </filerInfo>
    </headerData>

     <formData>
        <issuerInfo>
            <issuerCik>0001158324</issuerCik>
			<issuerName>COGENT COMMUNICATIONS HOLDINGS, INC.</issuerName>


			    <secFileNumber>000-51829</secFileNumber>


			<issuerAddress>
				<com:street1>2450 N ST NW</com:street1>
                				<com:street2>4TH FLOOR</com:street2>
                				<com:city>WASHINGTON</com:city>
				<com:stateOrCountry>DC</com:stateOrCountry>
				<com:zipCode>20037</com:zipCode>
			</issuerAddress>

			<issuerContactPhone>2022954274</issuerContactPhone>
			<nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Lewis H FERGUSON </nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>

			<relationshipsToIssuer>
                                				    <relationshipToIssuer>Director</relationshipToIssuer>

			</relationshipsToIssuer>
		</issuerInfo>

				          <securitiesInformation>
			<securitiesClassTitle>common stock</securitiesClassTitle>
			<brokerOrMarketmakerDetails>
				<name>RBC WEALTH MANAGEMENT</name>
				<address>
				<com:street1>250 Nicollet Mall</com:street1>
                				<com:street2>Suite 1400</com:street2>
                				<com:city>Minneapilos</com:city>
				<com:stateOrCountry>MN</com:stateOrCountry>
				<com:zipCode>55401</com:zipCode>
				</address>
			</brokerOrMarketmakerDetails>
			<noOfUnitsSold>1100</noOfUnitsSold>
			<aggregateMarketValue>52470</aggregateMarketValue>
			<noOfUnitsOutstanding>49337310</noOfUnitsOutstanding>
			<approxSaleDate>05/27/2025</approxSaleDate>
			<securitiesExchangeName>NASDAQ</securitiesExchangeName>
		</securitiesInformation>

    		       <securitiesToBeSold>
         <securitiesClassTitle>common stock</securitiesClassTitle>
         <acquiredDate>10/01/2023</acquiredDate>
         <natureOfAcquisitionTransaction>Director Compensation</natureOfAcquisitionTransaction>
                  <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
                  <isGiftTransaction>N</isGiftTransaction>
		          <amountOfSecuritiesAcquired>300</amountOfSecuritiesAcquired>
                  <paymentDate>10/01/2023</paymentDate>
                  <natureOfPayment>None</natureOfPayment>
      </securitiesToBeSold>
             <securitiesToBeSold>
         <securitiesClassTitle>common stock</securitiesClassTitle>
         <acquiredDate>07/01/2019</acquiredDate>
         <natureOfAcquisitionTransaction>Director Compensation</natureOfAcquisitionTransaction>
                  <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
                  <isGiftTransaction>N</isGiftTransaction>
		          <amountOfSecuritiesAcquired>50</amountOfSecuritiesAcquired>
                  <paymentDate>07/01/2019</paymentDate>
                  <natureOfPayment>None</natureOfPayment>
      </securitiesToBeSold>
             <securitiesToBeSold>
         <securitiesClassTitle>common stock</securitiesClassTitle>
         <acquiredDate>10/01/2020</acquiredDate>
         <natureOfAcquisitionTransaction>Director Compensation</natureOfAcquisitionTransaction>
                  <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
                  <isGiftTransaction>N</isGiftTransaction>
		          <amountOfSecuritiesAcquired>750</amountOfSecuritiesAcquired>
                  <paymentDate>10/01/2020</paymentDate>
                  <natureOfPayment>None</natureOfPayment>
      </securitiesToBeSold>

    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>



        <noticeSignature>
            <noticeDate>05/28/2025</noticeDate>
                        <signature>  /s/ Lewis H. Ferguson, III</signature>
        </noticeSignature>
	</formData>
    </edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
