Cogent Communications Holdings, Inc.

NISA INVESTMENT ADVISORS, LLC CCOI

Report date

12/31/2025

Quarter

2025 Q4

Filed

1/15/2026

Shares

10,820

Value ($000)

233

Weight

0.0%

2019 Q4 - 2025 Q4 (25 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 Q4	1/15/2026	233	0.0%	10,820	12/31/2025
2025 Q3	10/23/2025	306	0.0%	7,970	9/30/2025
2025 Q2	7/31/2025	244	0.0%	5,060	6/30/2025
2025 Q1	4/30/2025	918	0.0%	14,972	3/31/2025
2024 Q4	1/17/2025	1,098	0.0%	14,243	12/31/2024
2024 Q3	10/24/2024	1,077	0.0%	14,180	9/30/2024
2024 Q2	7/19/2024	682	0.0%	12,076	6/30/2024
2024 Q1	5/2/2024	750	0.0%	11,267	3/31/2024
2023 Q4	1/25/2024	1,126	0.0%	14,803	12/31/2023
2023 Q3	11/2/2023	1,151	0.0%	18,595	9/30/2023
2023 Q2	8/11/2023	1,864	0.0%	27,695	6/30/2023
2023 Q1	5/2/2023	1,843	0.0%	28,925	3/31/2023
2022 Q4	2/2/2023	1,755	0.0%	30,753	12/31/2022
2022 Q3	11/7/2022	816	0.0%	15,653	9/30/2022
2022 Q2	8/3/2022	904	0.0%	14,880	6/30/2022
2022 Q1	4/29/2022	732	0.0%	11,030	3/31/2022
2021 Q4	2/3/2022	472	0.0%	7,420	12/31/2021
2021 Q3	10/18/2021	738	0.0%	10,420	9/30/2021
2021 Q2	8/6/2021	571	0.0%	7,420	6/30/2021
2021 Q1	4/26/2021	510	0.0%	7,420	3/31/2021
2020 Q4	1/25/2021	600	0.0%	10,020	12/31/2020
2020 Q3	10/20/2020	650	0.0%	10,820	9/30/2020
2020 Q2	7/27/2020	930	0.0%	12,020	6/30/2020
2020 Q1	4/17/2020	1,022	0.0%	12,470	3/31/2020
2019 Q4	1/17/2020	1,100	0.0%	16,720	12/31/2019