Harris Mark Andrew (CIK 2083050) reported 3 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-01-05). Recent activity: Buy CCOI (5,000 shares), Buy CCOI (100,000 shares), Buy CCOI (668 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-01-05 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | VP & Chief Revenue Officer | Buy | 5,000 | $0 |
| 2026-01-05 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | VP & Chief Revenue Officer | Buy | 100,000 | $0 |
| 2025-09-03 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | VP & Chief Revenue Officer | Buy | 668 | $0 |
Source: SEC Form 4 filings · as of 2026-01-05