Dave Schaeffer Cogent Communications Holdings, Inc. (CCOI) insider trading activity

Dave Schaeffer is CHAIRMAN, CEO, AND PRESIDENT of COGENT COMMUNICATIONS HOLDINGS, INC.. Currently has a direct ownership of 4 Million shares of CCOI, which is worth approximately $184 Million. The most recent transaction as insider was on Jun 02, 2025, when has been sold 65,000 shares (Common Stock) at a price of $46.26 per share, resulting in proceeds of $3,006,900. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 4M

11.26% 3M change

12.22% 12M change

Total Value Held $184 Million

DAVE SCHAEFFER Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Jun 02 2025	SELL Open market or private sale	$3,006,900 $46.26 p/Share	65,000 Reduced 1.6%	3,996,721 Common Stock
May 30 2025	SELL Open market or private sale	$1,147,500 $45.9 p/Share	25,000 Reduced 0.61%	4,061,721 Common Stock
May 29 2025	SELL Open market or private sale	$1,172,500 $46.9 p/Share	25,000 Reduced 0.61%	4,086,721 Common Stock
May 28 2025	SELL Open market or private sale	$948,199 $47.41 p/Share	20,000 Reduced 0.48%	4,111,721 Common Stock
May 27 2025	SELL Open market or private sale	$973,400 $48.67 p/Share	20,000 Reduced 0.48%	4,131,721 Common Stock
May 23 2025	SELL Open market or private sale	$1,173,250 $46.93 p/Share	25,000 Reduced 0.6%	4,151,721 Common Stock
May 22 2025	SELL Open market or private sale	$1,156,750 $46.27 p/Share	25,000 Reduced 0.59%	4,176,721 Common Stock
May 21 2025	SELL Open market or private sale	$1,872,400 $46.81 p/Share	40,000 Reduced 0.94%	4,201,721 Common Stock
May 20 2025	SELL Open market or private sale	$749,400 $49.96 p/Share	15,000 Reduced 0.35%	4,241,721 Common Stock
May 16 2025	SELL Open market or private sale	$764,850 $50.99 p/Share	15,000 Reduced 0.35%	4,256,721 Common Stock
May 15 2025	SELL Open market or private sale	$2,015,200 $50.38 p/Share	40,000 Reduced 0.93%	4,271,721 Common Stock
May 14 2025	SELL Open market or private sale	$1,519,200 $50.64 p/Share	30,000 Reduced 0.69%	4,311,721 Common Stock
May 13 2025	SELL Open market or private sale	$2,150,582 $50.45 p/Share	42,628 Reduced 0.97%	4,341,721 Common Stock
May 12 2025	SELL Open market or private sale	$569,737 $50.1 p/Share	11,372 Reduced 0.26%	4,384,349 Common Stock
Apr 04 2025	SELL Sale (or disposition) back to the issuer	-	48,317 Reduced 1.09%	4,395,721 Common Stock
Mar 04 2025	SELL Open market or private sale	$4,306,200 $71.77 p/Share	60,000 Reduced 1.33%	4,444,038 Common Stock
Jan 14 2025	BUY Grant, award, or other acquisition	-	180,000 Added 3.84%	4,504,038 Common Stock
Dec 16 2024	SELL Sale (or disposition) back to the issuer	$1,517,600 $75.88 p/Share	20,000 Reduced 0.47%	4,228,038 Common Stock
Nov 26 2024	SELL Open market or private sale	$2,014,659 $82.69 p/Share	24,364 Reduced 0.57%	4,248,038 Common Stock
Nov 25 2024	SELL Open market or private sale	$2,984,871 $83.76 p/Share	35,636 Reduced 0.83%	4,272,402 Common Stock
Sep 10 2024	SELL Open market or private sale	$4,663,750 $71.75 p/Share	65,000 Reduced 1.49%	4,308,038 Common Stock
Aug 27 2024	SELL Open market or private sale	$4,369,200 $72.82 p/Share	60,000 Reduced 1.35%	4,373,038 Common Stock
Jun 14 2024	SELL Open market or private sale	$3,106,800 $51.78 p/Share	60,000 Reduced 1.34%	4,433,038 Common Stock
Jun 12 2024	SELL Open market or private sale	$3,276,000 $54.6 p/Share	60,000 Reduced 1.32%	4,493,038 Common Stock
May 13 2024	SELL Open market or private sale	$2,972,000 $59.44 p/Share	50,000 Reduced 1.09%	4,553,038 Common Stock

Dave Schaeffer

CHAIRMAN, CEO, AND PRESIDENT

Washington, DC

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