<!-- CoverPageHeader start -->
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<TITLE> Cogent Communications Holdings, Inc. (Form: 8-K) </TITLE>
</HEAD>
<BODY TEXT="#000000" BGCOLOR="#FFFFFF" ALINK="#0000FF" HLINK="#FF0000" VLINK="#800080">
<A NAME="DOCUMENT_TOP">&nbsp;</A>
<P>
<!-- CoverPageHeader end --><!-- CoverPageTitle START -->
<A NAME="DOCUMENT_TOP">&nbsp;</A>
<HR NOSHADE>
<P>
<P ALIGN="CENTER">
<FONT SIZE="4">
		UNITED STATES<BR>
	SECURITIES AND EXCHANGE COMMISSION
</FONT>
<BR>
<FONT SIZE="2">
	WASHINGTON, D.C. 20549
</FONT>
<P ALIGN="CENTER">
<FONT SIZE="5">
	FORM 8-K
</FONT>
<FONT SIZE="2">

</FONT>
</P>
<P ALIGN="CENTER">
<FONT SIZE="3">
	CURRENT REPORT
</FONT>
</P>
<P ALIGN="CENTER">
<FONT SIZE="2">
	Pursuant to Section&nbsp;13 or 15(d) of the Securities Exchange Act of 1934
</FONT>
</P>
<CENTER>
<TABLE CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="100%">
<TR VALIGN="BOTTOM">
<TD WIDTH="51%">
	&nbsp;
</TD>
<TD WIDTH="5%">
	&nbsp;
</TD>
<TD WIDTH="44%">
	&nbsp;
</TD>
</TR>
<TR VALIGN="BOTTOM">
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
	Date of Report (Date of Earliest Event Reported):
</FONT>
</TD>
<TD>
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
	November 17, 2017
</FONT>
</TD>
</TR>
</TABLE>
<BR>
</CENTER>
<!-- CoverPageTitle END --><!-- CoverPageRegistrant START -->
<P ALIGN="CENTER"><!-- -->
<FONT SIZE="6">
	Cogent Communications Holdings, Inc.
</FONT>
<FONT SIZE="2">
<BR>__________________________________________<BR>
	(Exact name of registrant as specified in its charter)
</FONT>
<CENTER>
<TABLE CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="100%">
<TR VALIGN="BOTTOM">
<TD WIDTH="33%">
	&nbsp;
</TD>
<TD WIDTH="34%">
	&nbsp;
</TD>
<TD WIDTH="33%">
	&nbsp;
</TD>
</TR>
<TR VALIGN="BOTTOM">
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
	Delaware
</FONT>
</TD>
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
	000-51829
</FONT>
</TD>
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
	46-5706863
</FONT>
</TD>
</TR>
<TR VALIGN="BOTTOM">
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
_____________________<BR>
	(State or other jurisdiction
</FONT>
</TD>
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
_____________<BR>
	(Commission
</FONT>
</TD>
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
______________<BR>
	(I.R.S. Employer
</FONT>
</TD>
</TR>
<TR VALIGN="BOTTOM">
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
	of incorporation)
</FONT>
</TD>
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
	File Number)
</FONT>
</TD>
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
	Identification No.)
</FONT>
</TD>
</TR>
<TR VALIGN="BOTTOM">
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
	&nbsp;&nbsp;
</FONT>
</TD>
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
</TR>
<TR VALIGN="BOTTOM">
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
	2450 N St NW, Washington, District of Columbia
</FONT>
</TD>
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
	20037
</FONT>
</TD>
</TR>
<TR VALIGN="BOTTOM">
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
_________________________________<BR>
	(Address of principal executive offices)
</FONT>
</TD>
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
___________<BR>
	(Zip Code)
</FONT>
</TD>
</TR>
</TABLE>
</CENTER>
<CENTER>
<TABLE CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="100%">

<TR VALIGN="BOTTOM">
<TD WIDTH="51%">
	&nbsp;
</TD>
<TD WIDTH="5%">
	&nbsp;
</TD>
<TD WIDTH="44%">
	&nbsp;
</TD>
</TR>
<TR VALIGN="BOTTOM">
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
	Registrant&#146;s telephone number, including area code:
</FONT>
</TD>
<TD>
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="CENTER" VALIGN="TOP">
<FONT SIZE="2">
	202-295-4274
</FONT>
</TD>
</TR>
</TABLE>
</CENTER>
<P ALIGN="CENTER">
<FONT SIZE="2">
	Not Applicable
<BR>______________________________________________<BR>
	Former name or former address, if changed since last report
</FONT>
<P ALIGN="CENTER">
<FONT SIZE="2">
	&nbsp;
</FONT>
<!-- CoverPageRegistrant END --><P><FONT SIZE="2">
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:</FONT>
</P>
<P><FONT SIZE="2">
[&nbsp;&nbsp;]&nbsp;&nbsp;Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)<br>
[&nbsp;&nbsp;]&nbsp;&nbsp;Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)<br>
[&nbsp;&nbsp;]&nbsp;&nbsp;Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))<br>
[&nbsp;&nbsp;]&nbsp;&nbsp;Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))<br>
</P></FONT><tr><td colspan="3"><!-- PageBreak START -->
<P>

<DIV ALIGN="LEFT" STYLE="PAGE-BREAK-BEFORE:ALWAYS">
<A HREF="#DOCUMENT_TOP">
<U>
<B>
<FONT SIZE="2">Top of the Form</FONT>
</B>
</U>
</A>
</DIV>
<!-- PageBreak END --></td></tr><P><FONT SIZE="2">
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (&#167;230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (&#167;240.12b-2 of this chapter).</FONT>
</P>

<P><FONT SIZE="2">
Emerging growth company [&nbsp;&nbsp;]<br>
</P></FONT>
<P><FONT SIZE="2">
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;&nbsp;]<br>
</P></FONT><!-- PageBreak START -->
<P>
<HR NOSHADE>
<DIV ALIGN="LEFT" STYLE="PAGE-BREAK-BEFORE:ALWAYS">
<A HREF="#DOCUMENT_TOP">
<U>
<B>
<FONT SIZE="2">Top of the Form</FONT>
</B>
</U>
</A>
</DIV>
<!-- PageBreak END --><!-- Item START -->
<P ALIGN="LEFT">
<FONT SIZE="2">
<B>
	Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
</B>
</FONT>
</P>
<P ALIGN="LEFT">
<FONT SIZE="2">
On November 17, 2017 the Company's US operating subsidiary entered into a 7th amendment of the employment agreement of its CEO, Dave Schaeffer, that extended the term of the agreement through 2021.  The compensation provisions of amendment 6 (entered into on April 7, 2014) were also extended through 2021.  This provision  eliminated his cash salary effective on January 1, 2015 and established a bonus.  Through 2021 he will continue to be eligible to earn up to $500,000 per year in bonus compensation for performance against revenue and EBITDA, as adjusted, growth targets of Cogent Communications Holdings, Inc. ("Holdings") (as defined in the earnings releases of Holdings).  The targets are 15% for revenue growth and 20% for EBITDA, as adjusted growth, compared in each case to the prior year.  This description of the 7th amendment to the employment agreement does not purport to be complete, and is subject to and qualified in its entirety by reference to the full text of amendment, which is attached as Exhibit 10.1 to this Current Report on Form 8-K, and is incorporated herein by reference.
</FONT>
</P>
<!-- Item END -->
<BR><BR><BR><BR><!-- Item START -->
<P ALIGN="LEFT">
<FONT SIZE="2">
<B>
	Item 9.01 Financial Statements and Exhibits.
</B>
</FONT>
</P>
<P ALIGN="LEFT">
<FONT SIZE="2">
(d)  Exhibits:<br><br>Exhibit                  No.Description<br>10.1                     Amendment No. 7 to Employment Agreement of David Schaeffer, dated November 17, 2017 (filed herewith).
</FONT>
</P>
<!-- Item END -->
<BR><BR><BR><BR><P ALIGN="LEFT" STYLE="FONT-SIZE: 10PT"></P><!-- PageBreak START -->
<P>
<HR NOSHADE>
<DIV ALIGN="LEFT" STYLE="PAGE-BREAK-BEFORE:ALWAYS">
<A HREF="#DOCUMENT_TOP">
<U>
<B>
<FONT SIZE="2">Top of the Form</FONT>
</B>
</U>
</A>
</DIV>
<!-- PageBreak END --><P ALIGN="CENTER">
<FONT SIZE="2">
	Exhibit&nbsp;Index
</FONT>
<CENTER>
<TABLE CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="60%">
<TR VALIGN="BOTTOM">
<TD WIDTH="8%">
	&nbsp;
</TD>
<TD WIDTH="15%">
	&nbsp;
</TD>
<TD WIDTH="77%">
	&nbsp;
</TD>
</TR>

<BR>
<TR VALIGN="BOTTOM">
<TD NOWRAP ALIGN="LEFT">
<FONT SIZE="1">
<B>
	Exhibit No.
</B>
</FONT>
</TD>
<TD>
<FONT SIZE="1">
	&nbsp;
</FONT>
</TD>
<TD NOWRAP ALIGN="LEFT">
<FONT SIZE="1">
<B>
	Description
</B>
</FONT>
</TD>
</TR>
<TR VALIGN="BOTTOM">
<TD NOWRAP ALIGN="CENTER">
<HR SIZE="1" NOSHADE>
</TD>
<TD>
<FONT SIZE="1">
	&nbsp;
</FONT>
</TD>
<TD NOWRAP ALIGN="CENTER">
<HR ALIGN="LEFT" SIZE="1" WIDTH="88%" NOSHADE>
</TD>
</TR>





<TR VALIGN="BOTTOM">
<TD VALIGN="TOP" WIDTH="8%" nowrap>
<FONT SIZE="2">
<DIV ALIGN="LEFT">
	10.1
</DIV>
</FONT>
</TD>
<TD WIDTH="15%">
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH="77%">
<FONT SIZE="2">
<A HREF="exhibit1.htm" >
Amendment No. 7 to Employment Agreement of David Schaeffer, dated November 17, 2017 (filed herewith).
</A>
</FONT>
</TD>
</TR></TABLE></CENTER><!-- PageBreak START -->
<P>
<HR NOSHADE>
<DIV ALIGN="LEFT" STYLE="PAGE-BREAK-BEFORE:ALWAYS">
<A HREF="#DOCUMENT_TOP">
<U>
<B>
<FONT SIZE="2">Top of the Form</FONT>
</B>
</U>
</A>
</DIV>
<!-- PageBreak END --><!-- SignatureHeader START -->
<P ALIGN="CENTER">
<FONT SIZE="2">
<B>
	SIGNATURES
</B>
</FONT>
</P>
<P ALIGN="LEFT">
<FONT SIZE="2">
	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>
<!-- SignatureHeader END --><!-- Signature START -->
<CENTER>
<TABLE CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="100%">
<TR VALIGN="BOTTOM">
<TD WIDTH="19%">
	&nbsp;
</TD>
<TD WIDTH="34%">
	&nbsp;
</TD>
<TD WIDTH="3%">
	&nbsp;
</TD>
<TD WIDTH="1%">
	&nbsp;
</TD>
<TD WIDTH="43%">
	&nbsp;
</TD>
</TR>
<TR VALIGN="BOTTOM">
<TD VALIGN="TOP">
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD>
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD COLSPAN="3" VALIGN="TOP" ALIGN="LEFT">
<FONT SIZE="2">
	Cogent Communications Holdings, Inc.
</FONT>
</TD>
</TR>
<TR VALIGN="BOTTOM">
<TD VALIGN="TOP">
<FONT SIZE="2">
	&nbsp;&nbsp;
</FONT>
</TD>
<TD>
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="LEFT" VALIGN="TOP">
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD>
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="LEFT" VALIGN="TOP">
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
</TR>
<TR VALIGN="BOTTOM">
<TD VALIGN="TOP">
<FONT SIZE="2">
<I>
	November 20, 2017
</I>
</FONT>
</TD>
<TD>
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="LEFT" VALIGN="TOP">
<FONT SIZE="2">
<I>
	By:
</I>
</FONT>
</TD>
<TD>
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="LEFT" VALIGN="TOP">
<FONT SIZE="2">
<I>
	/s/ Robert N. Beury, Jr.
</I>
<BR>
</FONT>
</TD>
</TR>
<TR>
<TD VALIGN="TOP">
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD>
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="LEFT" VALIGN="TOP">
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD>
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="LEFT" VALIGN="TOP">
<HR SIZE="1" NOSHADE>
</TD>
</TR>
<TR VALIGN="BOTTOM">
<TD VALIGN="TOP">
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD>
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="LEFT" VALIGN="TOP">
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD>
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="LEFT" VALIGN="TOP">
<FONT SIZE="2">
<I>
	Name: Robert N. Beury, Jr.
</I>
</FONT>
</TD>
</TR>
<TR VALIGN="BOTTOM">
<TD VALIGN="TOP">
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD>
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="LEFT" VALIGN="TOP">
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD>
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="LEFT" VALIGN="TOP">
<FONT SIZE="2">
<I>
	Title: Vice President and Chief Legal Officer
</I>
</FONT>
</TD>
</TR>
</TABLE>
</CENTER>
<!-- Signature END --><!-- PageBreak START -->
<P>
<HR NOSHADE>
<DIV ALIGN="LEFT" STYLE="PAGE-BREAK-BEFORE:ALWAYS">
<A HREF="#DOCUMENT_TOP">
<U>
<B>
<FONT SIZE="2">Top of the Form</FONT>
</B>
</U>
</A>
</DIV>
<!-- PageBreak END --><!-- HTMLFooter START -->
</BODY>
</HTML>
<!-- HTMLFooter END -->
[{"type": "8-K", "sequence": "1", "filename": "htm_55589.htm", "description": "LIVE FILING", "secsgml_size_bytes": 12290}]
{"company-data": {"conformed-name": "COGENT COMMUNICATIONS HOLDINGS, INC.", "cik": "0001158324", "assigned-sic": "4899", "irs-number": "522337274", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-51829", "film-number": "171212869"}, "business-address": {"street1": "2450 N STREET, NW", "city": "WASHINGTON", "state": "DC", "zip": "20037", "phone": "2022954200"}, "mail-address": {"street1": "2450 N STREET, NW", "city": "WASHINGTON", "state": "DC", "zip": "20037"}, "former-company": {"former-conformed-name": "COGENT COMMUNICATIONS GROUP INC", "date-changed": "20010828"}}
Cogent Communications Holdings, Inc. (Form: 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):
November 17, 2017
Cogent Communications Holdings, Inc.
__________________________________________
(Exact name of registrant as specified in its charter)
Delaware
000-51829
46-5706863
_____________________
(State or other jurisdiction
_____________
(Commission
______________
(I.R.S. Employer
of incorporation)
File Number)
Identification No.)
2450 N St NW, Washington, District of Columbia
20037
_________________________________
(Address of principal executive offices)
___________
(Zip Code)
Registrant's telephone number, including area code:
202-295-4274
Not Applicable
______________________________________________
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))
Top of the Form
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
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. [  ]
Top of the Form
Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
On November 17, 2017 the Company's US operating subsidiary entered into a 7th amendment of the employment agreement of its CEO, Dave Schaeffer, that extended the term of the agreement through 2021.  The compensation provisions of amendment 6 (entered into on April 7, 2014) were also extended through 2021.  This provision  eliminated his cash salary effective on January 1, 2015 and established a bonus.  Through 2021 he will continue to be eligible to earn up to $500,000 per year in bonus compensation for performance against revenue and EBITDA, as adjusted, growth targets of Cogent Communications Holdings, Inc. ("Holdings") (as defined in the earnings releases of Holdings).  The targets are 15% for revenue growth and 20% for EBITDA, as adjusted growth, compared in each case to the prior year.  This description of the 7th amendment to the employment agreement does not purport to be complete, and is subject to and qualified in its entirety by reference to the full text of amendment, which is attached as Exhibit 10.1 to this Current Report on Form 8-K, and is incorporated herein by reference.
Item 9.01 Financial Statements and Exhibits.
(d)  Exhibits:
Exhibit                  No.Description
10.1                     Amendment No. 7 to Employment Agreement of David Schaeffer, dated November 17, 2017 (filed herewith).
Top of the Form
Exhibit Index
Exhibit No.
Description
10.1
Amendment No. 7 to Employment Agreement of David Schaeffer, dated November 17, 2017 (filed herewith).
Top of the Form
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.
Cogent Communications Holdings, Inc.
November 20, 2017
By:
/s/ Robert N. Beury, Jr.
Name: Robert N. Beury, Jr.
Title: Vice President and Chief Legal Officer
Top of the Form