| SC 13G/A | 2020-05-08 | BlackRock Inc. | FRONTIER COMMUNICATIONS CORP | 839,875 | 0.8% | EDGAR |
| SC 13G/A | 2020-02-12 | VANGUARD GROUP INC | FRONTIER COMMUNICATIONS CORP | 6,141,355 | 5.8% | EDGAR |
| SC 13G | 2020-02-12 | RENAISSANCE TECHNOLOGIES LLC | FRONTIER COMMUNICATIONS CORP | 5,494,822 | 5.2% | EDGAR |
| SC 13G | 2020-02-06 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | FRONTIER COMMUNICATIONS CORP | 6,053,856 | 5.8% | EDGAR |
| SC 13G/A | 2020-01-10 | BlackRock Inc. | FRONTIER COMMUNICATIONS CORP | 9,798,577 | 9.3% | EDGAR |
| SC 13G/A | 2020-01-09 | MORGAN STANLEY | FRONTIER COMMUNICATIONS CORP | 4,298,635 | 4.1% | EDGAR |
| SC 13G/A | 2019-12-30 | INTEGRATED CORE STRATEGIES (US) LLC | FRONTIER COMMUNICATIONS CORP | 4,954 | 0.0% | EDGAR |
| SC 13G | 2019-12-23 | INTEGRATED CORE STRATEGIES (US) LLC | FRONTIER COMMUNICATIONS CORP | 22,000 | 0.0% | EDGAR |
| SC 13G/A | 2019-02-11 | VANGUARD GROUP INC | FRONTIER COMMUNICATIONS CORP | 10,678,036 | 10.1% | EDGAR |
| SC 13G/A | 2019-01-28 | BlackRock Inc. | FRONTIER COMMUNICATIONS CORP | 16,360,108 | 15.5% | EDGAR |
| SC 13G/A | 2018-10-05 | BlackRock Inc. | FRONTIER COMMUNICATIONS CORP | 12,513,442 | 11.8% | EDGAR |
| SC 13G/A | 2018-02-09 | VANGUARD GROUP INC | FRONTIER COMMUNICATIONS CORP | 10,263,864 | 13.1% | EDGAR |
| SC 13G/A | 2018-01-09 | BlackRock Inc. | FRONTIER COMMUNICATIONS CORP | 15,219,684 | 18.8% | EDGAR |
| SC 13G/A | 2017-04-10 | BlackRock Inc. | FRONTIER COMMUNICATIONS CORP | 150,604,441 | 12.4% | EDGAR |
| SC 13G/A | 2017-02-10 | VANGUARD GROUP INC | FRONTIER COMMUNICATIONS CORP | 116,339,591 | 9.9% | EDGAR |
| SC 13G/A | 2017-02-10 | VANGUARD GROUP INC | FRONTIER COMMUNICATIONS CORP | 119,330,581 | 10.2% | EDGAR |
| SC 13G/A | 2017-01-24 | BlackRock Inc. | FRONTIER COMMUNICATIONS CORP | 114,642,867 | 9.5% | EDGAR |
| SC 13G/A | 2016-02-10 | BlackRock Inc. | FRONTIER COMMUNICATIONS CORP | 98,844,827 | 8.3% | EDGAR |
| SC 13G/A | 2016-02-10 | VANGUARD GROUP INC | FRONTIER COMMUNICATIONS CORP | 101,390,287 | 8.7% | EDGAR |
| SC 13G/A | 2015-02-10 | VANGUARD GROUP INC | FRONTIER COMMUNICATIONS CORP | 86,098,375 | 8.6% | EDGAR |