Schaeffer Dave (CIK 0001166976)

Latest company ownership

CCOI - COGENT COMMUNICATIONS HOLDINGS, INC.

Role: CEO

Shares held

697,143

Last filed at

Aug 11, 2025

Confidence Score

37.7

2025Q4

Confidence Score History

2023Q2 2025Q4

Recent buy/sell transactions

Exec date	Filing date	Company	Role	Signal	Confidence	Shares	% of shares	Under plan?	Amount (USD)
Aug 8, 2025	Aug 11, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	15.0	-818,909	-54.02%	✗	$22.5M
Aug 7, 2025	Aug 8, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	15.0	-1,840,669	-54.84%	✗	$60M
Jun 16, 2025	Jun 16, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-70,000	-2.04%	✗	$3.3M
Jun 13, 2025	Jun 16, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-55,000	-1.58%	✗	$2.6M
Jun 12, 2025	Jun 12, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-55,000	-1.56%	✗	$2.6M
Jun 11, 2025	Jun 12, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-55,000	-1.53%	✗	$2.7M
Jun 10, 2025	Jun 10, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-55,000	-1.51%	✗	$2.7M
Jun 9, 2025	Jun 9, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-55,000	-1.49%	✗	$2.7M
Jun 6, 2025	Jun 9, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-80,000	-2.12%	✗	$3.8M
Jun 5, 2025	Jun 9, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-75,000	-1.94%	✗	$3.5M
Jun 4, 2025	Jun 5, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-75,000	-1.91%	✗	$3.6M
Jun 3, 2025	Jun 4, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-65,000	-1.63%	✗	$3.1M
Jun 2, 2025	Jun 3, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-65,000	-1.60%	✗	$3M
May 30, 2025	Jun 2, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	27.5	-25,000	-0.61%	✗	$1.1M
May 29, 2025	May 30, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	27.5	-25,000	-0.61%	✗	$1.2M
May 28, 2025	May 29, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	37.5	-20,000	-0.48%	✗	$948.2K
May 27, 2025	May 28, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	37.5	-20,000	-0.48%	✗	$973.3K
May 23, 2025	May 27, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	27.5	-25,000	-0.60%	✗	$1.2M
May 22, 2025	May 23, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	27.5	-25,000	-0.59%	✗	$1.2M
May 21, 2025	May 22, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	27.5	-40,000	-0.94%	✗	$1.9M
May 20, 2025	May 21, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	37.5	-15,000	-0.35%	✗	$749.3K
May 16, 2025	May 19, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	37.5	-15,000	-0.35%	✗	$764.9K
May 15, 2025	May 16, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	27.5	-40,000	-0.93%	✗	$2M
May 14, 2025	May 15, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	27.5	-30,000	-0.69%	✗	$1.5M
May 12, 2025	May 14, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-54,000	-1.23%	✗	$2.7M
Mar 4, 2025	Mar 5, 2025	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-60,000	-1.33%	✗	$4.3M
Dec 16, 2024	Dec 17, 2024	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	35.0	-20,000	-0.47%	✗	$1.5M
Nov 25, 2024	Nov 27, 2024	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-60,000	-1.39%	✗	$5M
Sep 10, 2024	Sep 11, 2024	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-65,000	-1.49%	✗	$4.7M
Aug 27, 2024	Aug 28, 2024	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-60,000	-1.35%	✗	$4.4M
Jun 14, 2024	Jun 17, 2024	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-60,000	-1.34%	✗	$3.1M
Jun 12, 2024	Jun 13, 2024	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-60,000	-1.32%	✗	$3.3M
May 13, 2024	May 14, 2024	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-50,000	-1.09%	✗	$3M
Mar 15, 2024	Mar 18, 2024	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	27.5	-26,174	-0.56%	✗	$1.7M
Mar 13, 2024	Mar 15, 2024	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	27.5	-30,000	-0.64%	✗	$2M
Mar 12, 2024	Mar 14, 2024	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-50,000	-1.05%	✗	$3.4M
Mar 11, 2024	Mar 14, 2024	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	27.5	-35,000	-0.73%	✗	$2.4M
Mar 12, 2024	Mar 12, 2024	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-50,000	-1.05%	✗	$3.4M
Mar 11, 2024	Mar 12, 2024	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	27.5	-35,000	-0.73%	✗	$2.4M
Mar 6, 2024	Mar 8, 2024	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	30.0	-30,213	-0.63%	✗	$640.3K
Dec 13, 2023	Dec 14, 2023	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	35.0	-20,000	-0.42%	✗	$1.4M
Dec 1, 2023	Dec 1, 2023	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	27.5	-36,604	-0.76%	✗	$2.4M
Nov 30, 2023	Dec 1, 2023	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	47.5	-3,396	-0.07%	✗	$218.4K
Nov 14, 2023	Nov 16, 2023	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	27.5	-40,000	-0.83%	✗	$2.7M
Sep 15, 2023	Sep 18, 2023	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	35.0	-18,191	-0.37%	✗	$1.2M
Sep 12, 2023	Sep 14, 2023	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	27.5	-45,000	-0.92%	✗	$3M
Sep 8, 2023	Sep 12, 2023	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	27.5	-45,000	-0.91%	✗	$3M
Jun 8, 2023	Jun 8, 2023	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	45.0	-7,061	-0.14%	✗	$440.9K
Jun 6, 2023	Jun 8, 2023	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	17.5	-67,939	-1.35%	✗	$4.2M
May 10, 2023	May 12, 2023	COGENT COMMUNICATIONS HOLDINGS, INC.	CEO	Sell	27.5	-35,000	-0.69%	✗	$2.3M