KILMER HENRY W (CIK 1599812) reported 8 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-09). Recent activity: Sell CCOI (2,400 shares), Buy CCOI (9,600 shares), Sell CCOI (4,800 shares), Buy CCOI (2,400 shares), Sell CCOI (2,400 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-09 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | VP OF NETWORK STRATEGY | Sell | 2,400 | $56,040 |
| 2026-01-05 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | VP OF NETWORK STRATEGY | Buy | 9,600 | $0 |
| 2025-12-08 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | VP OF NETWORK STRATEGY | Sell | 4,800 | $94,992 |
| 2025-12-02 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | VP OF NETWORK STRATEGY | Buy | 2,400 | $0 |
| 2025-09-05 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | VP OF NETWORK STRATEGY | Sell | 2,400 | $88,776 |
| 2025-06-09 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | VP OF NETWORK STRATEGY | Buy | 2,400 | $0 |
| 2025-06-09 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | VP OF NETWORK STRATEGY | Sell | 2,400 | $115,080 |
| 2025-03-10 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | VP OF NETWORK STRATEGY | Sell | 2,400 | $174,168 |
Source: SEC Form 4 filings · as of 2026-03-09