Chang John B.
Insider CIK 1775672 · CCOI VP & Chief Legal Officer, Director
Trades across companies
| Ticker | Code | Trade | Filed | Shares | Price | Value | Owned after | |
|---|---|---|---|---|---|---|---|---|
| CCOI COGENT COMMUNICATIONS HOLD | A Award | 2025-12-31 | 2026-01-05 | 9,600 | — | $0 | 88,847 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | A Award | 2025-12-31 | 2026-01-05 | 100,000 | — | $0 | 188,847 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | A Award | 2025-12-01 | 2025-12-02 | 2,400 | — | $0 | 79,247 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | G Gift | 2025-06-02 | 2025-06-03 | 398 | — | $0 | 76,847 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | G Gift | 2025-05-13 | 2025-05-15 | 504 | — | $0 | 3,089 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | G Gift | 2025-05-13 | 2025-05-15 | 756 | — | $0 | 77,245 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | G Gift | 2025-04-10 | 2025-04-11 | 357 | — | $0 | 78,001 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | G Gift | 2025-03-10 | 2025-03-12 | 357 | — | $0 | 78,358 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | G Gift | 2025-03-05 | 2025-03-07 | 715 | — | $0 | 2,585 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | G Gift | 2025-03-05 | 2025-03-07 | 715 | — | $0 | 78,715 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | A Award | 2025-01-09 | 2025-01-13 | 9,600 | — | $0 | 79,430 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | G Gift | 2024-12-18 | 2024-12-19 | 485 | — | $0 | 935 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | G Gift | 2024-12-18 | 2024-12-19 | 485 | — | $0 | 935 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | G Gift | 2024-12-18 | 2024-12-19 | 970 | — | $0 | 69,830 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | G Gift | 2024-12-04 | 2024-12-06 | 900 | — | $0 | 70,800 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | A Award | 2024-12-01 | 2024-12-03 | 2,400 | — | $0 | 71,700 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2024-11-12 | 2024-11-12 | 2,280 | $80.41 | $183.3K | 69,300 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2024-09-12 | 2024-09-13 | 1,400 | $71.67 | $100.3K | 71,580 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2024-08-23 | 2024-08-26 | 2,055 | $74.00 | $152.1K | 72,980 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | G Gift | 2024-02-01 | 2024-02-01 | 375 | — | $0 | 375 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | G Gift | 2024-02-01 | 2024-02-01 | 375 | — | $0 | 75,035 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | A Award | 2024-01-03 | 2024-01-05 | 30,000 | — | $0 | 77,910 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | A Award | 2024-01-03 | 2024-01-05 | 9,600 | — | $0 | 47,910 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | A Award | 2024-01-03 | 2024-01-30 | 30,000 | — | $0 | 75,410 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | A Award | 2024-01-03 | 2024-01-30 | 9,600 | — | $0 | 45,410 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2023-12-26 | 2023-12-28 | 3,550 | $76.00 | $269.8K | 38,310 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2023-12-21 | 2023-12-22 | 1,000 | $74.00 | $74.0K | 41,860 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | G Gift | 2023-12-20 | 2023-12-20 | 450 | — | $0 | 450 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | G Gift | 2023-12-20 | 2023-12-20 | 450 | — | $0 | 450 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | G Gift | 2023-12-20 | 2023-12-20 | 900 | — | $0 | 42,860 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2023-12-14 | 2023-12-15 | 500 | $72.00 | $36.0K | 43,760 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | D To issuer | 2023-12-11 | 2023-12-11 | 3,000 | $69.00 | $207.0K | 44,260 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | A Award | 2023-12-01 | 2023-12-01 | 2,400 | — | $0 | 47,260 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2023-05-03 | 2023-05-04 | 2,500 | $74.00 | $185.0K | 42,360 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2023-05-03 | 2023-05-04 | 2,500 | $72.00 | $180.0K | 44,860 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2023-04-17 | 2023-04-18 | 500 | $70.00 | $35.0K | 47,360 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2023-02-01 | 2023-02-02 | 2,000 | $70.00 | $140.0K | 47,860 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2023-01-26 | 2023-01-27 | 500 | $68.00 | $34.0K | 49,860 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2023-01-17 | 2023-01-18 | 1,000 | $66.00 | $66.0K | 50,360 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2023-01-12 | 2023-01-13 | 1,500 | $64.00 | $96.0K | 51,360 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | A Award | 2023-01-03 | 2023-01-04 | 9,600 | — | $0 | 52,860 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | A Award | 2022-12-01 | 2022-12-01 | 2,400 | — | $0 | 43,260 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2022-04-06 | 2022-04-07 | 250 | $72.00 | $18.0K | 40,860 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2022-04-05 | 2022-04-07 | 250 | $70.00 | $17.5K | 41,110 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2022-04-01 | 2022-04-04 | 150 | $68.00 | $10.2K | 41,360 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2022-03-31 | 2022-04-01 | 150 | $66.00 | $9.9K | 41,510 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2022-03-17 | 2022-03-18 | 600 | $62.96 | $37.8K | 41,660 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | A Award | 2022-01-03 | 2022-01-05 | 9,600 | — | $0 | 42,260 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2021-05-10 | 2021-05-11 | 558 | $80.00 | $44.6K | 32,660 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2021-04-30 | 2021-05-03 | 558 | $75.00 | $41.9K | 33,218 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2021-04-05 | 2021-04-06 | 558 | $70.00 | $39.1K | 33,776 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2021-03-15 | 2021-03-16 | 558 | $65.00 | $36.3K | 34,334 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | A Award | 2021-02-24 | 2021-02-25 | 9,600 | — | $0 | 34,892 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2021-01-04 | 2021-01-05 | 558 | $60.00 | $33.5K | 25,292 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2020-09-01 | 2020-09-01 | 150 | $67.53 | $10.1K | 25,850 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2020-07-31 | 2020-07-31 | 500 | $90.00 | $45.0K | 26,000 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2020-07-21 | 2020-07-22 | 500 | $85.00 | $42.5K | 26,500 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2020-03-03 | 2020-03-04 | 600 | $81.39 | $48.8K | 27,000 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2020-03-02 | 2020-03-03 | 300 | $76.66 | $23.0K | 27,600 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | A Award | 2020-02-14 | 2020-02-18 | 9,600 | — | $0 | 27,900 | SEC↗ |
| CCOI COGENT COMMUNICATIONS HOLD | S Sale | 2020-01-02 | 2020-01-03 | 534 | $65.46 | $35.0K | 18,300 | SEC↗ |