OTHER INFORMATION
−Removed: During the three months ended March 31, 2025, no director or officer of the Company adopted or terminated a “ Rule 10b5-1 trading arrangement” or “ non -Rule 10b5-1 trading arrangement,” as each term is defined in Item 408 of Regulation S-K.
+Added: During the three months ended June 30, 2025, no director or officer of the Company adopted or terminated a “ Rule 10b5-1 trading arrangement” or “ non -Rule 10b5-1 trading arrangement,” as each term is defined in Item 408 of Regulation S-K.
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Exhibit Number
+Added: Amended and Restated Bylaws of Cogent Communications Holdings, Inc.
+Added: (as of May 7, 2025) (previously filed as Exhibit 3.1 to our Current Report on Form 8-K, filed on May 8, 2025, and incorporated herein by reference).
Series 2025-1 Supplement, dated as of April 11, 2025, by and between Cogent IPv4 LLC and Wilmington Trust, National Association (previously filed as Exhibit 4.1 to our Current Report on Form 8-K, filed on April 11, 2025, and incorporated herein by reference).
Second Amendment to Base Indenture, dated as of April 11, 2025, by and between Cogent IPv4 LLC and Wilmington Trust, National Association (previously filed as Exhibit 4.2 to our Current Report on Form 8-K, filed on April 11, 2025, and incorporated herein by reference).*
−Removed: Amendment No.
−Removed: 10 to Employment Agreement of David Schaeffer, dated as of January 14, 2025 (previously filed as Exhibit 10.1 to our Current Report on Form 8-K, filed on January 15, 2025, and incorporated herein by reference).
−Removed: Form of 2025 Restricted Stock Award between the Company and David Schaeffer (previously filed as Exhibit 10.2 to our Current Report on Form 8-K, filed on January 15, 2025, and incorporated herein by reference).
−Removed: Second Amendment to Lease Agreement, dated March 11, 2025, between Sodium LLC and Cogent Communications, LLC (previously filed as Exhibit 10.3 to our Current Report on Form 8-K, filed on March 12, 2025, and incorporated herein by reference).
+Added: Second Amended and Restated Cogent Communications Holdings, Inc.
+Added: 2017 Incentive Award Plan (incorporated by reference to Annex B of the Company’s Definitive Proxy Statement on Schedule 14A filed March 26, 2025 (File No.
Certification of Chief Executive Officer (filed herewith)
2 unchanged sentences
Certification of Chief Financial Officer (furnished herewith)
−Removed: The following materials from the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2025, formatted in Inline Extensible Business Reporting Language (XBRL), include:
+Added: The following materials from the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2025, formatted in Inline Extensible Business Reporting Language (XBRL), include:
(i) the Condensed Consolidated Statements of Comprehensive Loss, (ii) the Condensed Consolidated Balance Sheets, (iii) the Condensed Consolidated Statements of Cash Flows, and (iv) related notes (filed herewith).
1 unchanged sentence
Indicates a management contract or compensatory plan or arrangement in which directors or executive officers are eligible to participate.
+Added: In accordance with Item 601 (a) (5) of Regulation S-K, certain schedules to this exhibit have been omitted from this filing.
+Added: The registrant will provide a copy of any omitted schedule to the Securities and Exchange Commission or its staff upon request.
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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.
+Added: August 7, 2025
COGENT COMMUNICATIONS HOLDINGS, INC.
2 unchanged sentences
Chief Executive Officer
+Added: August 7, 2025
/s/ Thaddeus G.
2 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.