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COGENT COMMUNICATIONS HOLDINGS, INC.

For the period ended Mar 31, 2025. Filed May 8, 2025.

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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Mar 31, 2025 · Filed May 8, 2025

CCOI$4.45+11.8%Stored close · as of Nov 9, 2026

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Item 6. Exhibits

(a)Exhibits
Exhibit NumberDescription
4.1​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).
4.2​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).
10.1#​Amendment No. 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).
10.2#​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).
10.3​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).
31.1​Certification of Chief Executive Officer (filed herewith)
31.2​Certification of Chief Financial Officer (filed herewith)
32.1​Certification of Chief Executive Officer (furnished herewith)
32.2​Certification of Chief Financial Officer (furnished herewith)
101.1​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: (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).
104​Cover Page Interactive Data File (the cover page XBRL tags are embedded within the iXBRL document).
#Indicates a management contract or compensatory plan or arrangement in which directors or executive officers are eligible to participate.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.