| Vanguard Capital Management | Common Stock | 1,099,168,953 | 7.5% | — | Mar 31, 2026 | Apr 29, 2026 |
| The Vanguard Group | Common Stock | 0 | 0% | — | Mar 13, 2026 | Mar 26, 2026 |
| The Vanguard Group | Common Stock | 1,415,826,462 | 9.5% | — | Jun 30, 2025 | Jul 29, 2025 |
| Berkshire Hathaway Specialty Insurance Company | — | 5,524,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| National Indemnity Company of the South | — | 364,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| Finial Reinsurance Company | — | 1,804,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| Berkshire Hathaway Assurance Corporation | — | 3,764,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| Columbia Insurance Company | — | 75,063,916 | 0.5% | — | Dec 31, 2023 | Feb 14, 2024 |
| Government Employees Insurance Company | — | 56,350,988 | 0.4% | — | Dec 31, 2023 | Feb 14, 2024 |
| Central States Indemnity Company of Omaha | — | 692,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| MPP Company, Inc | — | 3,664,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| NRG America Holding Company | — | 960,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| NorGUARD Insurance Company | — | 1,112,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| EastGUARD Insurance Company | — | 228,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| Genesis Insurance Company | — | 180,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| General Star National Insurance Company | — | 180,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| General Star Indemnity Company | — | 724,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| General Reinsurance Corporation | — | 19,340,207 | 0.1% | — | Dec 31, 2023 | Feb 14, 2024 |
| General Re Corporation | — | 20,424,207 | 0.1% | — | Dec 31, 2023 | Feb 14, 2024 |
| GEICO Corporation | — | 61,542,988 | 0.4% | — | Dec 31, 2023 | Feb 14, 2024 |
| GEICO Indemnity Insurance Company | — | 5,192,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| PLICO Inc | — | 720,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| United States Liability Insurance Company | — | 1,816,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| Radnor Specialty Insurance Company | — | 144,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| Mount Vernon Fire Insurance Company | — | 1,816,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| Old United Life Insurance Company | — | 296,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| Old United Casualty Company | — | 420,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| Berkshire Hathaway Life Insurance Company of Nebraska | — | 24,260,000 | 0.1% | — | Dec 31, 2023 | Feb 14, 2024 |
| Princeton Insurance Company | — | 1,080,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| The Medical Protective Company | — | 10,352,000 | 0.1% | — | Dec 31, 2023 | Feb 14, 2024 |
| National Indemnity Company | — | 755,059,877 | 4.8% | — | Dec 31, 2023 | Feb 14, 2024 |
| MedPro Group Inc | — | 12,152,000 | 0.1% | — | Dec 31, 2023 | Feb 14, 2024 |
| Cypress Insurance Company | — | 2,724,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| National Liability & Fire Insurance Company | — | 2,712,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| Berkshire Hathaway Direct Insurance Company | — | 216,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| Berkshire Hathaway Homestate Insurance Company | — | 3,840,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| AmGUARD Insurance Company | — | 864,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| Oak River Insurance Company | — | 1,084,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| National Indemnity Company of Mid America | — | 548,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| Redwood Fire & Casualty Insurance Company | — | 2,676,000 | — | — | Dec 31, 2023 | Feb 14, 2024 |
| National Fire & Marine Insurance Company | — | 47,832,000 | 0.3% | — | Dec 31, 2023 | Feb 14, 2024 |
| Berkshire Hathaway Inc | — | 905,560,000 | 5.8% | — | Dec 31, 2023 | Feb 14, 2024 |
| Warren E. Buffett | — | 905,560,000 | 5.8% | — | Dec 31, 2023 | Feb 14, 2024 |
| The Vanguard Group - 23-1945930 | — | 1,317,966,471 | 8.5% | — | Feb 13, 2024 | Feb 13, 2024 |
| BlackRock, Inc. | Common Stock | 1,043,713,019 | 6.7% | — | Dec 31, 2023 | Feb 12, 2024 |
| Berkshire Hathaway Specialty Insurance Company | — | 5,524,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| National Indemnity Company of the South | — | 364,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Finial Reinsurance Company | — | 1,804,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Berkshire Hathaway Assurance Corporation | — | 5,764,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| British Insurance Company of Cayman | — | 152,225 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Columbia Insurance Company | — | 79,970,309 | 0.5% | — | Dec 31, 2022 | Feb 14, 2023 |
| RSUI Indemnity Company | — | 75,948 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Platte River Insurance Company | — | 678 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Capitol Specialty Insurance Company | — | 332 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Capitol Indemnity Corporation | — | 4,600 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Transatlantic Reinsurance Company | — | 252,298 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Alleghany Corporation | — | 333,856 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Central States Indemnity Company of Omaha | — | 692,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| MPP Company Inc | — | 3,664,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| NRG America Holding Company | — | 960,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Brilliant National Services, Inc | — | 368,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Government Employees Insurance Company | — | 52,658,619 | 0.3% | — | Dec 31, 2022 | Feb 14, 2023 |
| NorGUARD Insurance Company | — | 1,112,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| East Guard Insurance Company | — | 228,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Genesis Insurance Company | — | 180,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| General Star National Insurance Company | — | 180,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| General Star Indemnity Company | — | 724,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| General Reinsurance Corporation | — | 19,340,207 | 0.1% | — | Dec 31, 2022 | Feb 14, 2023 |
| General Re Corporation | — | 20,424,207 | 0.1% | — | Dec 31, 2022 | Feb 14, 2023 |
| GEICO Advantage Insurance Company | — | 3,664,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| GEICO Secure Insurance Company | — | 1,464,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| GEICO Indemnity Insurance Company | — | 5,192,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| GEICO Corporation | — | 65,178,619 | 0.4% | — | Dec 31, 2022 | Feb 14, 2023 |
| GEICO Choice Insurance Company | — | 2,200,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| PLICO Inc | — | 720,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| United States Liability Insurance Company | — | 1,816,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Radnor Specialty Insurance Company | — | 144,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Mount Vernon Fire Insurance Company | — | 1,816,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Old United Life Insurance Company | — | 296,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Old United Casualty Company | — | 420,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Berkshire Hathaway Life Insurance Company of Nebraska | — | 24,260,000 | 0.1% | — | Dec 31, 2022 | Feb 14, 2023 |
| Princeton Insurance Company | — | 1,080,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| The Medical Protective Company | — | 10,352,000 | 0.1% | — | Dec 31, 2022 | Feb 14, 2023 |
| National Indemnity Company | — | 759,667,785 | 4.8% | — | Dec 31, 2022 | Feb 14, 2023 |
| MedPro Group Inc | — | 12,152,000 | 0.1% | — | Dec 31, 2022 | Feb 14, 2023 |
| Cypress Insurance Company | — | 2,724,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| National Liability & Fire Insurance Company | — | 2,712,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Berkshire Hathaway Direct Insurance Company | — | 216,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Berkshire Hathaway Homestate Insurance Company | — | 3,840,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| AmGUARD Insurance Company | — | 864,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Oak River Insurance Company | — | 1,084,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| National Indemnity Company of Mid America | — | 548,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| Redwood Fire & Casualty Insurance Company | — | 2,676,000 | — | — | Dec 31, 2022 | Feb 14, 2023 |
| National Fire & Marine Insurance Company | — | 47,832,000 | 0.3% | — | Dec 31, 2022 | Feb 14, 2023 |
| Berkshire Hathaway Inc | — | 915,560,382 | 5.8% | — | Dec 31, 2022 | Feb 14, 2023 |
| Warren E. Buffett | — | 915,560,382 | 5.8% | — | Dec 31, 2022 | Feb 14, 2023 |
| The Vanguard Group - 23-1945930 | — | 1,278,250,538 | 8% | — | Feb 9, 2023 | Feb 9, 2023 |
| BlackRock, Inc. | Common Stock | 1,029,178,566 | 6.5% | — | Dec 31, 2022 | Feb 7, 2023 |
| The Vanguard Group - 23-1945930 | — | 1,261,261,357 | 7.7% | — | Feb 9, 2022 | Feb 9, 2022 |
| BlackRock, Inc. | Common Stock | 1,019,810,291 | 6.2% | — | Dec 31, 2021 | Feb 1, 2022 |
| Berkshire Hathaway Specialty Insurance Company | — | 5,524,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| National Indemnity Company of the South | — | 364,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| Finial Reinsurance Company | — | 1,804,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| Berkshire Hathaway Assurance Corporation | — | 5,764,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| Columbia Insurance Company | — | 76,091,400 | 0.5% | — | Dec 31, 2020 | Feb 16, 2021 |
| Central States Indenmity Company of Omaha | — | 692,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| MPP Company Inc | — | 3,664,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| NRG America Holding Company | — | 960,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| Brilliant National Services, Inc | — | 959,632 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| Government Employees Insurance Company | — | 49,022,988 | 0.3% | — | Dec 31, 2020 | Feb 16, 2021 |
| NorGUARD Insurance Company | — | 1,112,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| East Guard Insurance Company | — | 228,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| Genesis Insurance Company | — | 180,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| General Star National Insurance Company | — | 180,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| General Star Indemnity Company | — | 724,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| General Reinsurance Corporation | — | 19,340,207 | 0.1% | — | Dec 31, 2020 | Feb 16, 2021 |
| General Re Corporation | — | 20,424,207 | 0.1% | — | Dec 31, 2020 | Feb 16, 2021 |
| GEICO Advantage Insurance Company | — | 3,664,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| GEICO Secure Insurance Company | — | 1,464,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| GEICO Indemnity Insurance Company | — | 5,192,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| GEICO Corporation | — | 61,542,988 | 0.4% | — | Dec 31, 2020 | Feb 16, 2021 |
| GEICO Choice Insurance Company | — | 2,200,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| PLICO Inc | — | 720,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| United States Liability Insurance Company | — | 1,816,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| Radnor Specialty Insurance Company | — | 144,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| Mount Vernon Fire Insurance Company | — | 1,816,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| Old United Life Insurance Company | — | 296,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| Old United Casualty Company | — | 420,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| Berkshire Hathaway Life Insurance Company of Nebraska | — | 24,260,000 | 0.1% | — | Dec 31, 2020 | Feb 16, 2021 |
| Princeton Insurance Company | — | 1,080,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| The Medical Protective Company | — | 10,352,000 | 0.1% | — | Dec 31, 2020 | Feb 16, 2021 |
| National Indemnity Company | — | 756,032,154 | 4.5% | — | Dec 31, 2020 | Feb 16, 2021 |
| MedPro Group Inc | — | 12,152,000 | 0.1% | — | Dec 31, 2020 | Feb 16, 2021 |
| Cypress Insurance Company | — | 2,724,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| National Liability & Fire Insurance Company | — | 2,712,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| Berkshire Hathaway Direct Insurance Company | — | 216,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| Berkshire Hathaway Homestate Insurance Company | — | 3,840,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| AmGUARD Insurance Company | — | 864,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| Oak River Insurance Company | — | 1,084,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| National Indemnity Company of Mid America | — | 548,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| Redwood Fire & Casualty Insurance Company | — | 2,676,000 | — | — | Dec 31, 2020 | Feb 16, 2021 |
| National Fire & Marine Insurance Company | — | 47,832,000 | 0.3% | — | Dec 31, 2020 | Feb 16, 2021 |
| Berkshire Hathaway Inc | — | 907,559,761 | 5.4% | — | Dec 31, 2020 | Feb 16, 2021 |
| Warren E. Buffett | — | 907,559,761 | 5.4% | — | Dec 31, 2020 | Feb 16, 2021 |
| The Vanguard Group - 23-1945930 | — | 1,255,155,794 | 7.4% | — | Feb 10, 2021 | Feb 10, 2021 |
| BlackRock, Inc. | Common Stock | 1,057,340,486 | 6.2% | — | Dec 31, 2020 | Feb 5, 2021 |
| Berkshire Hathaway Specialty Insurance Company | — | 1,381,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| National Indemnity Company of the South | — | 91,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| Finial Reinsurance Company | — | 451,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| Berkshire Hathaway Assurance Corporation | — | 1,441,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| Columbia Insurance Company | — | 18,615,807 | 0.4% | — | Dec 31, 2019 | Feb 14, 2020 |
| Central States Indenmity Company of Omaha | — | 173,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| MPP Company Inc | — | 916,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| NRG America Holding Company | — | 240,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| Brilliant National Services, Inc | — | 310,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| NovGUARD Insurance Company | — | 278,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| Government Employees Insurance Company | — | 12,255,747 | 0.3% | — | Dec 31, 2019 | Feb 14, 2020 |
| East Guard Insurance Company | — | 72,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| Genesis Insurance Company | — | 45,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| General Star National Insurance Company | — | 45,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| General Star Indemnity Company | — | 181,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| General Re Life Corporation | — | 1,172,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| General Reinsurance Corporation | — | 5,711,000 | 0.1% | — | Dec 31, 2019 | Feb 14, 2020 |
| General Re Corporation | — | 5,711,000 | 0.1% | — | Dec 31, 2019 | Feb 14, 2020 |
| GEICO Advantage Insurance Company | — | 916,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| GEICO Secure Insurance Company | — | 366,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| GEICO Indemnity Insurance Company | — | 1,298,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| GEICO Corporation | — | 15,385,747 | 0.3% | — | Dec 31, 2019 | Feb 14, 2020 |
| GEICO Choice Insurance Company | — | 550,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| PLICO Inc | — | 180,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| United States Liability Insurance Company | — | 454,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| Radnor Specialty Insurance Company | — | 36,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| Mount Vernon Fire Insurance Company | — | 454,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| Old United Life Insurance Company | — | 74,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| Old United Casualty Company | — | 105,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| Berkshire Hathaway Life Insurance Company of Nebraska | — | 6,065,000 | 0.1% | — | Dec 31, 2019 | Feb 14, 2020 |
| Princeton Insurance Company | — | 270,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| The Medical Protective Company | — | 2,588,000 | 0.1% | — | Dec 31, 2019 | Feb 14, 2020 |
| National Indemnity Company | — | 209,532,759 | 4.7% | — | Dec 31, 2019 | Feb 14, 2020 |
| MedPro Group Inc | — | 3,038,000 | 0.1% | — | Dec 31, 2019 | Feb 14, 2020 |
| Cypress Insurance Company | — | 681,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| National Liability & Fire Insurance Company | — | 678,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| Berkshire Hathaway Direct Insurance Company | — | 54,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| Berkshire Hathaway Homestate Insurance Company | — | 960,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| AmGUARD Insurance Company | — | 216,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| Oak River Insurance Company | — | 271,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| National Indemnity Company of Mid America | — | 137,000 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| Redwood Fire & Casualty Insurance Company | — | 1,302,224 | — | — | Dec 31, 2019 | Feb 14, 2020 |
| National Fire & Marine Insurance Company | — | 11,958,000 | 0.3% | — | Dec 31, 2019 | Feb 14, 2020 |
| Berkshire Hathaway Inc | — | 250,866,566 | 5.6% | — | Dec 31, 2019 | Feb 14, 2020 |
| Warren E. Buffett | — | 250,866,566 | 5.6% | — | Dec 31, 2019 | Feb 14, 2020 |
| The Vanguard Group - 23-1945930 | — | 329,323,432 | 7.4% | — | Feb 12, 2020 | Feb 12, 2020 |
| BlackRock, Inc. | Common Stock | 277,770,570 | 6.3% | — | Dec 31, 2019 | Feb 10, 2020 |
| Berkshire Hathaway Specialty Insurance Company | — | 1,381,000 | — | — | Dec 31, 2018 | Feb 14, 2019 |
| National Indemnity Company of the South | — | 91,000 | — | — | Dec 31, 2018 | Feb 14, 2019 |
| Finial Reinsurance Company | — | 451,000 | — | — | Dec 31, 2018 | Feb 14, 2019 |
| Berkshire Hathaway Assurance Corporation | — | 1,441,000 | — | — | Dec 31, 2018 | Feb 14, 2019 |
| Columbia Insurance Company | — | 1,909,800 | 0.4% | — | Dec 31, 2018 | Feb 14, 2019 |
| MPP Company Inc | — | 916,000 | — | — | Dec 31, 2018 | Feb 14, 2019 |
| NRG America Holding Company | — | 240,000 | — | — | Dec 31, 2018 | Feb 14, 2019 |