Insiders / Chang John B.

Chang John B.

CIK 1775672personinsider
Companies
1
First seen
Jan 5, 2026
Last activity
Jan 5, 2026

Companies

1View all →
CompanyRoleShares heldPeak heldTradesLatest
Cogent Communications Holdings, Inc. · CCOIExecutive188,847188,8472—

All securities held

1 position · latest reported per filing
CompanySecuritySharesAs of
Cogent Communications Holdings, Inc.common stock188,847Dec 31, 2025

Activity

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InsidersInstitutions
This person's insider trades (Form 4), across every company.
DateActionCompanyValueShares ΔPosition afterImpact
Dec 31, 2025GrantCCOI
Cogent Communications Holdings, Inc.
common stock
$0+100K
+112.55%
188,847
0.37% of shares
low
Dec 31, 2025GrantCCOI
Cogent Communications Holdings, Inc.
common stock
$0+10K
+12.11%
88,847
0.17% of shares
low