Insider · CIK 0001166976

SCHAEFFER DAVE

Positions

COGENT COMMUNICATIONS HOLDINGS, INC. · CCOI(29 filings)

Recent Filings (29)

Jan 5, 2026Form 4COGENT COMMUNICATIONS HOLDINGS, INC.+229,657 sh
Aug 11, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-818,909 sh
Aug 8, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-1,840,669 sh
Jun 16, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-70,000 sh
Jun 16, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-55,000 sh
Jun 12, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-55,000 sh
Jun 12, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-55,000 sh
Jun 10, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-55,000 sh
Jun 9, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-80,000 sh
Jun 9, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-75,000 sh
Jun 9, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-55,000 sh
Jun 5, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-75,000 sh
Jun 4, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-65,000 sh
Jun 3, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-65,000 sh
Jun 2, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-25,000 sh
May 30, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-25,000 sh
May 29, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-20,000 sh
May 28, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-20,000 sh
May 27, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-25,000 sh
May 23, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-25,000 sh
May 22, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-40,000 sh
May 21, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-15,000 sh
May 19, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-15,000 sh
May 16, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-40,000 sh
May 15, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-30,000 sh
May 14, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-54,000 sh
Apr 4, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-48,317 sh
Mar 5, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-60,000 sh
Jan 15, 2025Form 4COGENT COMMUNICATIONS HOLDINGS, INC.+180,000 sh