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| 9/17/2025 | BKHY | Moody's rates Matterhorn notes B1 |
| 9/17/2025 | BKHY | Fitch assigns Matterhorn notes BB+ |
| 9/17/2025 | BKHY | S&P assigns Matterhorn notes BB- |
| 5/12/2025 | BKHY | Moody's raises Salt |
| 1/14/2025 | BKHY | Moody’s gives Matterhorn notes, loan B2 |
| 4/23/2024 | BK | Moody’s changes Salt view to positive |
| 7/10/2023 | BKHY | Fitch assigns Salt BB-, notes BB+ |
| 7/10/2023 | BKHY | S&P ups Matterhorn, rates notes BB- |
| 6/5/2018 | BKHY | Moody’s rates Matterhorn notes B2 |
| 4/27/2018 | BKDDHY | Moody’s changes Matterhorn Telecom view |
| 3/29/2018 | BKHY | S&P upgrades Matterhorn Telecom |
| 11/13/2017 | BKDDHY | S&P rates Matterhorn Telecom notes B |
| 11/13/2017 | BKDDHY | S&P rates Matterhorn Telecom notes B |
| 3/10/2017 | BKDDHY | Moody’s: Matterhorn Telecom notes B2, Caa1 |
| 6/3/2015 | BKHY | S&P rates Matterhorn Telecom notes B, CCC+ |
| 4/13/2015 | BKHY | S&P rates Matterhorn Telecom secured debt B, notes CCC+ |
| 4/13/2015 | BKHY | Moody’s rates Matterhorn notes B2, Caa1 |