Chang John B.
Known title: VP & Chief Legal OfficerCIK: 0001775672
Associated companies
Transaction History
| CCOI | ▲ Buy | Grant | 9,600 | $0 | 12/31/2025 | View on chart |
| CCOI | ▲ Buy | Grant | 100,000 | $0 | 12/31/2025 | View on chart |
| CCOI | ▲ Buy | Grant | 2,400 | $0 | 12/1/2025 | View on chart |
| CCOI | ▼ Sell | Gift | 398 | $0 | 6/2/2025 | View on chart |
| CCOI | ▼ Sell | Gift | 756 | $0 | 5/13/2025 | View on chart |
| CCOI | ▼ Sell | Gift | 504 | $0 | 5/13/2025 | View on chart |
| CCOI | ▼ Sell | Gift | 357 | $0 | 4/10/2025 | View on chart |
| CCOI | ▼ Sell | Gift | 357 | $0 | 3/10/2025 | View on chart |
| CCOI | ▼ Sell | Gift | 715 | $0 | 3/5/2025 | View on chart |
| CCOI | ▼ Sell | Gift | 715 | $0 | 3/5/2025 | View on chart |
| CCOI | ▲ Buy | Grant | 9,600 | $0 | 1/9/2025 | View on chart |
| CCOI | ▼ Sell | Gift | 970 | $0 | 12/18/2024 | View on chart |
| CCOI | ▼ Sell | Gift | 485 | $0 | 12/18/2024 | View on chart |
| CCOI | ▼ Sell | Gift | 485 | $0 | 12/18/2024 | View on chart |
| CCOI | ▼ Sell | Gift | 900 | $0 | 12/4/2024 | View on chart |
| CCOI | ▲ Buy | Grant | 2,400 | $0 | 12/1/2024 | View on chart |
| CCOI | ▼ Sell | Open Market | 2,280 | $183K | 11/12/2024 | View on chart |
| CCOI | ▼ Sell | Open Market | 1,400 | $100K | 9/12/2024 | View on chart |
| CCOI | ▼ Sell | Open Market | 2,055 | $152K | 8/23/2024 | View on chart |
| CCOI | ▼ Sell | Gift | 375 | $0 | 2/1/2024 | View on chart |
| CCOI | ▼ Sell | Gift | 375 | $0 | 2/1/2024 | View on chart |
| CCOI | ▲ Buy | Grant | 9,600 | $0 | 1/3/2024 | View on chart |
| CCOI | ▲ Buy | Grant | 30,000 | $0 | 1/3/2024 | View on chart |
| CCOI | ▼ Sell | Open Market | 3,550 | $270K | 12/26/2023 | View on chart |
| CCOI | ▼ Sell | Open Market | 1,000 | $74K | 12/21/2023 | View on chart |
| CCOI | ▼ Sell | Gift | 450 | $0 | 12/20/2023 | View on chart |
| CCOI | ▼ Sell | Gift | 450 | $0 | 12/20/2023 | View on chart |
| CCOI | ▼ Sell | Gift | 900 | $0 | 12/20/2023 | View on chart |
| CCOI | ▼ Sell | Open Market | 500 | $36K | 12/14/2023 | View on chart |
| CCOI | ▼ Sell | Other | 3,000 | $207K | 12/11/2023 | View on chart |
| CCOI | ▲ Buy | Grant | 2,400 | $0 | 12/1/2023 | View on chart |
| CCOI | ▼ Sell | Open Market | 2,500 | $180K | 5/3/2023 | View on chart |
| CCOI | ▼ Sell | Open Market | 2,500 | $185K | 5/3/2023 | View on chart |
| CCOI | ▼ Sell | Open Market | 500 | $35K | 4/17/2023 | View on chart |
| CCOI | ▼ Sell | Open Market | 2,000 | $140K | 2/1/2023 | View on chart |
| CCOI | ▼ Sell | Open Market | 500 | $34K | 1/26/2023 | View on chart |
| CCOI | ▼ Sell | Open Market | 1,000 | $66K | 1/17/2023 | View on chart |
| CCOI | ▼ Sell | Open Market | 1,500 | $96K | 1/12/2023 | View on chart |
| CCOI | ▲ Buy | Grant | 9,600 | $0 | 1/3/2023 | View on chart |
| CCOI | ▲ Buy | Grant | 2,400 | $0 | 12/1/2022 | View on chart |
| CCOI | ▼ Sell | Open Market | 250 | $18K | 4/6/2022 | View on chart |
| CCOI | ▼ Sell | Open Market | 250 | $18K | 4/5/2022 | View on chart |
| CCOI | ▼ Sell | Open Market | 150 | $10K | 4/1/2022 | View on chart |
| CCOI | ▼ Sell | Open Market | 150 | $10K | 3/31/2022 | View on chart |
| CCOI | ▼ Sell | Open Market | 600 | $38K | 3/17/2022 | View on chart |
| CCOI | ▲ Buy | Grant | 9,600 | $0 | 1/3/2022 | View on chart |
AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 16, 2026
Cogent Communications Shares Plunge 81% Amid Debt Concerns
Cogent Communications shares dropped sharply, falling 81% in recent trading, and joined a group of technology stocks that saw large declines. Analysts point to the company's high debt load as a concern, and the company will report Q3 2026 earnings on November 5. The stock is currently trading near its 15‑touch support level of $9.05, with an RSI of 39.9. Cogent is also highlighted among small‑cap stocks that concern analysts.
Cogent Communications Shares Plunge 81% Amid Debt Concerns. Cogent Communications shares dropped sharply, falling 81% in recent trading, and joined a group of technology stocks that saw large declines. Analysts point to the company's high debt load as a concern, and the company will report Q3 2026 earnings on November 5. The stock is currently trading near its 15‑touch support level of $9.05, with an RSI of 39.9. Cogent is also highlighted among small‑cap stocks that concern analysts.