COGENT COMMUNICATIONS HOLDINGS, INC.·4

Jan 5, 4:26 PM ET

Chang John B. 4

4 · COGENT COMMUNICATIONS HOLDINGS, INC. · Filed Jan 5, 2026

Insider Transaction Report

Form 4
Period: 2025-12-31
Chang John B.
VP & CHIEF LEGAL OFFICER
Transactions
  • Award

    common stock

    2025-12-31+9,60088,847 total
  • Award

    common stock

    2025-12-31+100,000188,847 total
Holdings
  • common stock

    (indirect: By Children)
    1,870
Footnotes (2)
  • [F1]The award of restricted stock shall vest in one third of the grant on January 1 of each of 2027, 2028 and 2029.
  • [F2]The award shall vest effective January 1, 2029, based on Mr. Chang's continued employment to that date.

Documents

1 file
  • 4
    form4-01052026_090126.xmlPrimary