# EDGAR Filing Document

**Accession Number:** 0001158324
**File Stem:** 0001104659-25-079272
**Filing Date:** 2025-8
**Character Count:** 5395
**Document Hash:** de3440e2af19bd8051453669cbeae16e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-079272.hdr.sgml**: 20250815

**ACCESSION NUMBER**: 0001104659-25-079272

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 12

**CONFORMED PERIOD OF REPORT**: 20250811

**ITEM INFORMATION**: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

**ITEM INFORMATION**: Regulation FD Disclosure

**FILED AS OF DATE**: 20250815

**DATE AS OF CHANGE**: 20250815

**FILER**: 

**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:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-51829
- **FILM NUMBER:** 251225118

**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

?xml version='1.0' encoding='ASCII'?

**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): **August 11, 2025**

**Cogent Communications Holdings, Inc.**

(Exact name of registrant as specified in its charter)

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| | | |
|:---|:---|:---|
| **Delaware** | **000-51829** | **46-5706863** |
| (State or other jurisdiction of<br> incorporation) | (Commission File Number) | (I.R.S. Employer<br> Identification No.) |

---

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| | |
|:---|:---|
| **2450 N St. NW,**<br>**Washington, DC** | **20037** |
| (Address of principal executive offices) | (Zip Code) |

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Registrant's telephone number, including area code: **202-295-4200**

<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Not Applicable**&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>

(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))

Securities registered pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| &nbsp;&nbsp;**Title of Each Class** | &nbsp;&nbsp;**Trading Symbol** | &nbsp;&nbsp;**Name of Each Exchange on which Registered** |
| &nbsp;&nbsp;Common Stock, par value $0.001 per share | &nbsp;&nbsp;CCOI | &nbsp;&nbsp;NASDAQ Global Select Market |

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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. ◻

**Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.**

On August 11, 2025, Cogent Communications Holdings, Inc. (the "Company") was notified by James Bubeck of his intent to retire as Vice President of Global Sales and Chief Revenue Officer of the Company, effective September 2, 2025.

**Item 7.01 Regulation FD Disclosure.**

Mark Andrew Harris will become the new Vice President of Global Sales and Chief Revenue Officer of the Company, effective upon Mr. Bubeck's retirement.

Mr. Harris, age 61, joined the Company in 2023 as a result of the Company's acquisition of Sprint Communications from T-Mobile, serving in the capacity of Vice President of European Sales. He had been involved with the Sprint business in various sales capacities since April 2003.

**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.

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| | | |
|:---|:---|:---|
|  | Cogent Communications Holdings, Inc. | Cogent Communications Holdings, Inc. |
| August 15, 2025 | By: | /s/ David Schaeffer |
|  |  | Name: David Schaeffer |
|  |  | Title: President and Chief Executive Officer |

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