VP & CHIEF LEGAL OFFICER · COGENT COMMUNICATIONS HOLDINGS, INC. · common stock
Side
A
Value
—
Shares
2,400
Price
—
Executed
Dec 1, 2025
Disclosed
Dec 2, 2025
Disclosure timeline1 days from execution to publication · legal deadline 2 business days
Dec 1 executedDec 2, 2025 disclosed
CCOI · daily
Yahoo Finance chart API
◉This trade, on the day it was made▼Disclosure●Material company filing◯Other disclosed buy◯Other disclosed sellUnofficial public endpoint; daily OHLCV, split-adjusted. Replace with a licensed feed for production.
Grant or award — administrative, little informational value
Relative size+1 / 25
No reported dollar value · 3.1% of prior position
Filing timing0 / 15
Disclosed 1 business day after execution (deadline: 2)
Historical behavior+8 / 15
First recorded trade by this actor in this security
Frequency & clustering0 / 15
No clustered activity in the dataset
Market events0 / 10
No material company filing within 60 days after the trade
The Insider Score measures how far a disclosure deviates from normal filing patterns. A high score is a prompt for research, not evidence of illegal insider trading.
Chang John B. filed this Form 4 reporting a grant or award of CCOI on Dec 1, 2025. It became public on Dec 2, 2025. The filing establishes the reported transaction and the filer's stated role. It does not establish why the trade was made or what the filer knew.
