COGENT COMMUNICATIONS HOLDINGS, INC.

For the period ended Dec 31, 2025. Filed Feb 20, 2026.

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FY2025 · Filed Feb 20, 2026

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

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Contents

Signatures

Pursuant to the requirements of Section 13 or 15(d) 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.

	COGENT COMMUNICATIONS HOLDINGS, INC.

Dated: February 20, 2026	By:	/s/ DAVID SCHAEFFER
		Name:	David Schaeffer
		Title:	Chairman and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Signature	Title	Date

/s/ DAVID SCHAEFFER	Chairman and Chief Executive Officer
David Schaeffer	(Principal Executive Officer)	February 20, 2026

/s/ THADDEUS G. WEED	Vice President, Chief Financial Officer and Treasurer
Thaddeus Weed	(Principal Financial and Principal Accounting Officer)	February 20, 2026

/s/ PAUL DE SA
Paul De Sa	Director	February 20, 2026

/s/ STEVEN D. BROOKS
Steven Brooks	Director	February 20, 2026

/s/ SHERYL KENNEDY
Sheryl Kennedy	Director	February 20, 2026

/s/ MARC MONTAGNER
Marc Montagner	Director	February 20, 2026

/s/ LEWIS H. FERGUSON III
Lewis H. Ferguson III	Director	February 20, 2026

/s/ DENEEN HOWELL
Deneen Howell	Director	February 20, 2026

/s/ EVE HOWARD
Eve Howard	Director	February 20, 2026

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