<SEC-DOCUMENT>0001114667-23-000004.txt : 20230512
<SEC-HEADER>0001114667-23-000004.hdr.sgml : 20230512
<ACCEPTANCE-DATETIME>20230512163601
ACCESSION NUMBER:		0001114667-23-000004
CONFORMED SUBMISSION TYPE:	144/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20230512
DATE AS OF CHANGE:		20230512

SUBJECT COMPANY:	

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

	FILING VALUES:
		FORM TYPE:		144/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	000-51829
		FILM NUMBER:		23916462

	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:			BROOKS STEVEN D
		CENTRAL INDEX KEY:			0001227882

	FILING VALUES:
		FORM TYPE:		144/A

	MAIL ADDRESS:	
		STREET 1:		C/O COGENT COMMUNICATIONS HOLDINGS, INC.
		STREET 2:		2450 N ST NW, 4TH FLOOR
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20037
</SEC-HEADER>
<DOCUMENT>
<TYPE>144/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
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  <headerData>
    <submissionType>144/A</submissionType>
    <previousAccessionNumber>0001114667-23-000002</previousAccessionNumber>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001227882</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 STREET, NW</com:street1>
        <com:city>WASHINGTON</com:city>
        <com:stateOrCountry>DC</com:stateOrCountry>
        <com:zipCode>20037</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>2022954200</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>BROOKS STEVEN D</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Stiefel</name>
        <address>
          <com:street1>1 South Stree</com:street1>
          <com:city>Baltimore</com:city>
          <com:stateOrCountry>MD</com:stateOrCountry>
          <com:zipCode>21202</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>3798</noOfUnitsSold>
      <aggregateMarketValue>246874.56</aggregateMarketValue>
      <noOfUnitsOutstanding>48300000</noOfUnitsOutstanding>
      <approxSaleDate>05/11/2023</approxSaleDate>
      <securitiesExchangeName>NasdaqGS</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>07/01/2020</acquiredDate>
      <natureOfAcquisitionTransaction>Quarterly Distribution</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Cogent Communications Holdings, Inc.</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1750</amountOfSecuritiesAcquired>
      <paymentDate>07/01/2020</paymentDate>
      <natureOfPayment>Quarterly Distribution</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>07/01/2021</acquiredDate>
      <natureOfAcquisitionTransaction>Quarterly Distribution</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Cogent Communications Holdings, Inc.</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1750</amountOfSecuritiesAcquired>
      <paymentDate>07/01/2021</paymentDate>
      <natureOfPayment>Quarterly Distribution</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>10/01/2021</acquiredDate>
      <natureOfAcquisitionTransaction>Quarterly Distribution</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Cogent Communications Holdings, Inc.</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>298</amountOfSecuritiesAcquired>
      <paymentDate>10/01/2021</paymentDate>
      <natureOfPayment>Quarterly Distribution</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>05/12/2023</noticeDate>
      <signature>Steven D. Brooks</signature>
    </noticeSignature>
  </formData>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
