Chang John B.

Cogent Communications Holdings, Inc. · VP & CHIEF LEGAL OFFICER

Chang John B. is listed in public filings as officer: VP & CHIEF LEGAL OFFICER. This Chang John B. insider trading page organizes Form 4 disclosures, reported purchases and sales, transaction dates, share amounts, related issuers, and historical insider activity so readers can review the person's public trading record in one place. Companies and tickers connected to this insider trading profile include Cogent Communications Holdings, Inc. (CCOI). Investors use Chang John B.'s insider trading disclosures to study buying and selling patterns, position changes, company-specific activity, and the source evidence behind each reported transaction.

Latest Actions

CompanyHolding ValueLast TransactionAmountTransaction PriceCurrent Price
Cogent Communications Holdings, Inc.CCOI--88.8k sharesGrant / ExerciseDec 31, 2025Disclosure amount unavailable9.6k shares----
Cogent Communications Holdings, Inc.CCOI--188.8k sharesGrant / ExerciseDec 31, 2025Disclosure amount unavailable100k shares----

Insider Trades History

CompanyHolding ValueLast TransactionAmountTransaction PriceCurrent Price
Cogent Communications Holdings, Inc.CCOI--79.2k sharesGrant / ExerciseDec 1, 2025Disclosure amount unavailable2.4k shares----
Cogent Communications Holdings, Inc.CCOI--76.8k sharesGrant / ExerciseJun 2, 2025Disclosure amount unavailable398 shares----
Cogent Communications Holdings, Inc.CCOI--3.1k sharesGrant / ExerciseMay 13, 2025Disclosure amount unavailable504 shares----
Cogent Communications Holdings, Inc.CCOI--77.2k sharesGrant / ExerciseMay 13, 2025Disclosure amount unavailable756 shares----
Cogent Communications Holdings, Inc.CCOI--78.4k sharesGrant / ExerciseMar 10, 2025Disclosure amount unavailable357 shares----
Cogent Communications Holdings, Inc.CCOI--2.6k sharesGrant / ExerciseMar 5, 2025Disclosure amount unavailable715 shares----
Cogent Communications Holdings, Inc.CCOI--79.4k sharesGrant / ExerciseJan 9, 2025Disclosure amount unavailable9.6k shares----
Cogent Communications Holdings, Inc.CCOI--935 sharesGrant / ExerciseDec 18, 2024Disclosure amount unavailable485 shares----
Cogent Communications Holdings, Inc.CCOI--69.8k sharesGrant / ExerciseDec 18, 2024Disclosure amount unavailable970 shares----
Cogent Communications Holdings, Inc.CCOI--70.8k sharesGrant / ExerciseDec 4, 2024Disclosure amount unavailable900 shares----
Cogent Communications Holdings, Inc.CCOI--71.7k sharesGrant / ExerciseDec 1, 2024Disclosure amount unavailable2.4k shares----
Cogent Communications Holdings, Inc.CCOI$5.6M69.3k sharesSellNov 12, 2024$183.3K2.3k shares$80.41--
Cogent Communications Holdings, Inc.CCOI$5.1M71.6k sharesSellSep 12, 2024$100.3K1.4k shares$71.67--
Cogent Communications Holdings, Inc.CCOI$5.4M73k sharesSellAug 23, 2024$152.1K2.1k shares$74.00--