Montagner Marc (CIK 1456823) reported 14 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-06-30). Recent activity: Buy CCOI (3,445 shares), Buy CCOI (3,445 shares), Buy SBAC (2,072 shares), Sell SBAC (815 shares), Buy SBAC (2,451 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 |
| 2026-03-09 | SBA COMMUNICATIONS CORP (SBAC) | EVP - CHIEF FINANCIAL OFFICER | Buy | 2,072 | $0 |
| 2026-03-09 | SBA COMMUNICATIONS CORP (SBAC) | EVP - CHIEF FINANCIAL OFFICER | Sell | 815 | $159,552 |
| 2026-03-09 | SBA COMMUNICATIONS CORP (SBAC) | EVP - CHIEF FINANCIAL OFFICER | Buy | 2,451 | $0 |
| 2026-03-09 | SBA COMMUNICATIONS CORP (SBAC) | EVP - CHIEF FINANCIAL OFFICER | Sell | 979 | $191,539 |
| 2026-01-05 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | Director | Buy | 3,388 | $0 |
| 2025-10-27 | SBA COMMUNICATIONS CORP (SBAC) | EVP - CHIEF FINANCIAL OFFICER | Buy | 1,588 | $0 |
| 2025-10-27 | SBA COMMUNICATIONS CORP (SBAC) | EVP - CHIEF FINANCIAL OFFICER | Sell | 625 | $123,364 |
| 2025-10-01 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | Director | Buy | 2,395 | $0 |
| 2025-07-01 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | Director | Buy | 1,968 | $0 |
| 2025-03-31 | COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) | Director | Buy | 1,352 | $0 |
| 2025-03-10 | SBA COMMUNICATIONS CORP (SBAC) | EVP - CHIEF FINANCIAL OFFICER | Buy | 2,071 | $0 |
| 2025-03-10 | SBA COMMUNICATIONS CORP (SBAC) | EVP - CHIEF FINANCIAL OFFICER | Sell | 815 | $179,596 |
Source: SEC Form 4 filings · as of 2026-06-30