KILMER HENRY W - Insider Non-Derivative Transactions at COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Dec 8, 2025, KILMER HENRY W's relationship to COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) is Officer (VP OF NETWORK STRATEGY), and currently has 33,800 shares of common stock.

The chart below shows the number of shares owned, and the table shows the recent insider transactions.

You can see similar information for other CCOI insiders.

Related Topics: SEC Topic List.

Data Source: SEC.

KILMER HENRY W - Insider Non-Derivative Transactions of CCOI common stock

KILMER HENRY W - Insider Non-Derivative Transactions at CCOI

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Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Dec 9, 2025	Sell -- (common stock)	4800	19.79	33800
Dec 2, 2025	Sell -- (common stock)	2400	0	38600
Sep 6, 2025	Sell -- (common stock)	2400	36.99	36200
Jun 7, 2025	Sell -- (common stock)	2400	47.95	38600
Mar 8, 2025	Sell -- (common stock)	2400	72.57	41000
Jan 10, 2025	Acquisition -- (common stock)	9600	0	43400
Dec 13, 2024	Sell -- (common stock)	4800	75.61	33800
Dec 2, 2024	Sell -- (common stock)	2400	0	38600
Dec 2, 2024	Acquisition -- (common stock)	2400	0	38600
Sep 5, 2024	Sell -- (common stock)	2400	69.51	36200
Jun 7, 2024	Sell -- (common stock)	2400	56	38600
Mar 6, 2024	Sell -- (common stock)	2400	73.47	41000
Jan 4, 2024	Acquisition -- (common stock)	9600	0	38400
Jan 4, 2024	Acquisition -- (common stock)	5000	0	43400
Dec 8, 2023	Sell -- (common stock)	4800	67.94	28800
Dec 2, 2023	Acquisition -- (common stock)	2400	0	33600
Sep 8, 2023	Sell -- (common stock)	2400	69.16	31200
Jun 7, 2023	Sell -- (common stock)	2400	62.23	33600
Mar 8, 2023	Sell -- (common stock)	2400	63.51	36000
Jan 4, 2023	Acquisition -- (common stock)	9600	0	38400