CCOI

COGENT COMMUNICATIONS HOLDINGS, INC.

Communications Services, NECNasdaqLarge accelerated filer

Total Trades

135

Buys

Sells

131

Largest Trade

N/A

Insiders

Institutional Funds

207

Inst. Value

$1M+

Activist Filings

Insider Trades

Insider	Title	Type	Value	Shares	Price	Date
Kennedy Sheryl Lynn	Director	SELL	$15K–$50K	600	$61.66	Mar 13, 2023
FERGUSON Lewis H	Director	SELL	$50K–$100K	990	$61.49	Mar 13, 2023
KILMER HENRY W	VP of IP Engineering	SELL	$100K–$500K	2K	$63.51	Mar 8, 2023
WEED THADDEUS GERARD	VP, CFO, Treasurer	SELL	$100K–$500K	5K	$64.30	Mar 6, 2023
BUBECK JAMES	Chief Revenue Offi…	SELL	$100K–$500K	2K	$64.49	Mar 3, 2023
Chang John B.	Chief Legal Officer	SELL	$100K–$500K	2K	$70.00	Feb 2, 2023
Chang John B.	Chief Legal Officer	SELL	$15K–$50K	500	$68.00	Jan 27, 2023
Chang John B.	Chief Legal Officer	SELL	$50K–$100K	1K	$66.00	Jan 18, 2023
Chang John B.	Chief Legal Officer	SELL	$50K–$100K	2K	$64.00	Jan 13, 2023
BUBECK JAMES	Chief Revenue Offi…	SELL	$100K–$500K	2K	$57.45	Dec 9, 2022
KILMER HENRY W	VP of IP Engineering	SELL	$100K–$500K	5K	$57.36	Dec 8, 2022
BUBECK JAMES	Chief Revenue Offi…	SELL	$100K–$500K	2K	$58.15	Dec 2, 2022
WEED THADDEUS GERARD	VP, CFO Treasurer	SELL	$500K+	10K	$56.51	Dec 2, 2022
FERGUSON Lewis H	Director	SELL	$50K–$100K	1K	$57.50	Nov 29, 2022
Kapp David Allen	VP & Chief Technic…	SELL	$15K–$50K	600	$58.50	Nov 28, 2022
Kennedy Sheryl Lynn	Director	SELL	$50K–$100K	962	$57.83	Nov 21, 2022
KUMMER RAYMOND B	CTO; VP Optical Tr…	SELL	$100K–$500K	5K	$58.01	Nov 17, 2022
Montagner Marc	Director	BUY	$500K+	10K	$54.88	Nov 15, 2022
FERGUSON Lewis H	Director	SELL	$50K–$100K	940	$55.13	Sep 13, 2022
WEED THADDEUS GERARD	VP, CFO Treasurer	SELL	$100K–$500K	5K	$52.35	Sep 12, 2022
KILMER HENRY W	VP of IP Engineering	SELL	$100K–$500K	2K	$53.85	Sep 8, 2022
BUBECK JAMES	Chief Revenue Offi…	SELL	$100K–$500K	2K	$53.51	Sep 6, 2022
WEED THADDEUS GERARD	VP, CFO Treasurer	SELL	$100K–$500K	5K	$60.49	Jun 3, 2022
Kennedy Sheryl Lynn	Director	SELL	$50K–$100K	1K	$60.88	Jun 2, 2022
BUBECK JAMES	Chief Revenue Offi…	SELL	$100K–$500K	2K	$60.03	Jun 2, 2022
FERGUSON Lewis H	Director	SELL	$50K–$100K	950	$60.72	May 31, 2022
Chang John B.	Director	SELL	$15K–$50K	500	$71.00	Apr 7, 2022
Chang John B.	Director	SELL	$1K–$15K	150	$68.00	Apr 4, 2022
Chang John B.	VP & Chief Legal O…	SELL	$1K–$15K	150	$66.00	Apr 1, 2022
Chang John B.	VP & Chief Legal O…	SELL	$15K–$50K	600	$62.96	Mar 18, 2022
FERGUSON Lewis H	Director	SELL	$15K–$50K	725	$63.27	Mar 9, 2022
KILMER HENRY W	VP of IP Engineering	SELL	$100K–$500K	2K	$62.72	Mar 9, 2022
Wallace Sean Robert	VP, CFO & Treasurer	SELL	$15K–$50K	250	$63.30	Mar 3, 2022
BUBECK JAMES	Chief Revenue Offi…	SELL	$100K–$500K	2K	$62.94	Mar 2, 2022
Kennedy Sheryl Lynn	Director	SELL	$50K–$100K	1K	$62.27	Mar 1, 2022

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Institutional Ownership

13F filings as of Dec 31, 2025 · 207 funds holding

Fund	Shares	Value	Type
Turtle Creek Asset Management Inc.	4.0M	$1M+	SH
EdgePoint Investment Group Inc.	2.3M	$1M+	SH
STATE STREET CORP	2.1M	$1M+	SH
Park West Asset Management LLC	1.4M	$1M+	SH
Harspring Capital Management, LLC	1.4M	$1M+	SH
MAGNOLIA GROUP, LLC	1.2M	$1M+	SH
FIRST TRUST ADVISORS LP	1.2M	$1M+	SH
GEODE CAPITAL MANAGEMENT, LLC	1.0M	$1M+	SH
Tyro Capital Management LLC	1.0M	$1M+	SH (Call)
Tyro Capital Management LLC	1.0M	$1M+	SH (Call)
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	667K	$1M+	SH
CenterBook Partners LP	602K	$1M+	SH
Oakum Bay Capital LLC	544K	$1M+	SH
Palliser Capital (UK) Ltd	426K	$1M+	SH
Man Group plc	326K	$1M+	SH
REAVES W H & CO INC	259K	$1M+	SH
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	154K	$1M+	SH
HERALD INVESTMENT MANAGEMENT Ltd	243K	$1M+	SH
GOLDMAN SACHS GROUP INC	215K	$1M+	SH
Redmond Asset Management, LLC	200K	$1M+	SH