| 2025-07-31 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2025-05-01 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2025-02-24 | 10-K | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2024-10-31 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2024-08-01 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2024-05-02 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2024-02-22 | 10-K | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2023-11-02 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2023-08-04 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2023-05-03 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2023-02-23 | 10-K | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2022-11-02 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2022-08-03 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2022-05-04 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2022-02-25 | 10-K | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2021-10-28 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2021-07-28 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2021-04-30 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2021-02-24 | 10-K | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2020-10-28 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2020-07-29 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2020-07-29 | 10-Q | Security registered under Section 12(b) | 6.35% Subordinated Debentures due 2053 · THGA · NYSE |
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| 2020-04-29 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2020-04-29 | 10-Q | Security registered under Section 12(b) | 6.35% Subordinated Debentures due 2053 · THGA · NYSE |
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| 2020-02-24 | 10-K | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2020-02-24 | 10-K | Security registered under Section 12(b) | 6.35% Subordinated Debentures due 2053 · THGA · NYSE |
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| 2019-10-31 | 10-Q | Security registered under Section 12(b) | 7 5/8% Senior Debentures due 2025 · THG · NYSE |
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| 2019-10-31 | 10-Q | Security registered under Section 12(b) | 6.35% Subordinated Debentures due 2053 · THGA · NYSE |
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