Cogent Communications Holdings, Inc.

Madison Asset Management, LLC CCOI

Report date

9/30/2025

Quarter

2025 Q3

Filed

11/6/2025

Shares

83,719

Value ($000)

3,211

Weight

0.0%

2020 Q4 - 2025 Q3 (20 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q3	11/6/2025	3,211	0.0%	83,719	9/30/2025
2025 Q2	8/11/2025	4,448	0.0%	92,256	6/30/2025
2025 Q1	5/6/2025	4,982	0.1%	81,264	3/31/2025
2024 Q4	2/10/2025	6,332	0.1%	82,163	12/31/2024
2024 Q3	11/12/2024	8,205	0.1%	108,074	9/30/2024
2024 Q2	8/9/2024	6,074	0.1%	107,625	6/30/2024
2024 Q1	5/9/2024	5,642	0.1%	86,366	3/31/2024
2023 Q4	2/12/2024	5,451	0.1%	71,672	12/31/2023
2023 Q3	11/13/2023	3,729	0.1%	60,243	9/30/2023
2023 Q2	8/1/2023	4,946	0.1%	73,506	6/30/2023
2023 Q1	4/26/2023	5,130	0.1%	80,516	3/31/2023
2022 Q4	2/8/2023	4,772	0.1%	83,605	12/31/2022
2022 Q3	11/10/2022	4,377	0.1%	83,923	9/30/2022
2022 Q2	8/9/2022	4,477	0.1%	73,679	6/30/2022
2022 Q1	5/12/2022	4,885	0.1%	73,622	3/31/2022
2021 Q4	2/15/2022	4,385	0.1%	59,926	12/31/2021
2021 Q3	11/12/2021	4,216	0.1%	59,508	9/30/2021
2021 Q2	8/9/2021	5,462	0.1%	71,043	6/30/2021
2021 Q1	5/11/2021	4,892	0.1%	71,144	3/31/2021
2020 Q4	2/12/2021	2,828	0.0%	47,238	12/31/2020