FERGUSON Lewis H (CIK 1395643) reported 10 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-30). Recent activity: Buy CCOI (3,445 shares), Buy CCOI (3,445 shares), Sell CCOI (2,206 shares), Buy CCOI (3,388 shares), Sell CCOI (4,000 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-30 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | Director | Buy | 3,445 | $0 |
| 2026-03-31 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | Director | Buy | 3,445 | $0 |
| 2026-03-05 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | Director | Sell | 2,206 | $50,804 |
| 2026-01-05 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | Director | Buy | 3,388 | $0 |
| 2025-12-02 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | Director | Sell | 4,000 | $81,360 |
| 2025-10-02 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | Director | Buy | 2,395 | $0 |
| 2025-07-01 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | Director | Buy | 1,968 | $0 |
| 2025-05-29 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | Director | Sell | 1,100 | $52,327 |
| 2025-03-31 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | Director | Buy | 1,352 | $0 |
| 2025-03-13 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | Director | Sell | 956 | $66,318 |
Source: SEC Form 4 filings · as of 2026-06-30