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$CCOI All transactions

COGENT COMMUNICATIONS HOLDINGS, INC.

G

$ Value

$0

Shares

398

Price

$0

Filed

Jun 3

Insider

Name

Chang John B.

Title

VP & CHIEF LEGAL OFFICER

CIK

0001775672

Roles

Officer

Transaction Details

Transaction Date

2025-06-02

Code

G

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

76,847

Footnotes

The reporting person disposed of 398 shares to one independent adult family member

Filing Info

Accession No.

0001415889-25-015394

Form Type

4

Issuer CIK

0001158324

Chang John B.'s History

Date Ticker Type Value
2025-12-31 CCOI A $0
2025-12-31 CCOI A $0
2025-12-01 CCOI A $0
2025-06-02 CCOI G $0
2025-05-13 CCOI G $0
2025-05-13 CCOI G $0

Other Insiders at CCOI (90d)

Insider Bought Sold Last
SCHAEFFER DAVE
CHAIRMAN, CEO, AND PRESIDENT
2026-04-01
WEED THADDEUS GERARD
VICE PRESIDENT, CFO
$110K 2026-03-05
BROOKS STEVEN D 2026-03-31
FERGUSON Lewis H $51K 2026-03-31
Montagner Marc 2026-03-31
KILMER HENRY W
VP OF NETWORK STRATEGY
$56K 2026-03-06
Kennedy Sheryl Lynn $76K 2026-03-31
de Sa Paul 2026-03-31
Howell Deneen C 2026-03-31
Howard Eve N 2026-03-31