John B. Chang

Companies

• Cogent CommunicationsGeneral counsel Aug 7, 2019 to now¹
• Cogent CommunicationsBoard member Apr 4, 2022 to Dec 1, 2022²

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Recent filings

• Dec 31, 2025Granted 100,000 shares of CIK 1158324³
• Dec 31, 2025Granted 9,600 shares of CIK 1158324³
• Dec 1, 2025Granted 2,400 shares of CIK 1158324⁴
• Jun 2, 2025Gift 398 shares of CIK 1158324⁵
• May 13, 2025Gift 504 shares of CIK 1158324⁶
• May 13, 2025Gift 756 shares of CIK 1158324⁶
• Apr 10, 2025Gift 357 shares of CIK 1158324⁷
• Mar 10, 2025Gift 357 shares of CIK 1158324⁸
• Mar 5, 2025Gift 715 shares of CIK 1158324⁹
• Mar 5, 2025Gift 715 shares of CIK 1158324⁹
• Jan 9, 2025Granted 9,600 shares of CIK 1158324¹⁰
• Dec 18, 2024Gift 485 shares of CIK 1158324¹¹
• Dec 18, 2024Gift 485 shares of CIK 1158324¹¹
• Dec 18, 2024Gift 970 shares of CIK 1158324¹¹
• Dec 4, 2024Gift 900 shares of CIK 1158324¹²
• Dec 1, 2024Granted 2,400 shares of CIK 1158324¹³
• Nov 12, 2024Sold 2,280 shares at $80.41 of CIK 1158324¹⁴
• Sep 12, 2024Sold 1,400 shares at $71.67 of CIK 1158324¹⁵
• Aug 23, 2024Sold 2,055 shares at $74.00 of CIK 1158324¹⁶
• Feb 1, 2024Gift 375 shares of CIK 1158324¹⁷
• Feb 1, 2024Gift 375 shares of CIK 1158324¹⁷
• Jan 3, 2024Granted 30,000 shares of CIK 1158324¹⁸
• Jan 3, 2024Granted 30,000 shares of CIK 1158324¹⁹
• Jan 3, 2024Granted 9,600 shares of CIK 1158324¹⁸
• Jan 3, 2024Granted 9,600 shares of CIK 1158324¹⁹