| Filed | Form | Period | Accession | |
|---|---|---|---|---|
| Jun 23, 2026 | 8-K | 2026-06-23 | 0000049938-26-000029 | View → |
| May 4, 2026 | 8-K | 2026-05-04 | 0000049938-26-000023 | View → |
| May 4, 2026 | 8-K | 2026-05-04 | 0000049938-26-000021 | View → |
| May 4, 2026 | 10-Q | 2026-03-31 | 0000049938-26-000019 | View → |
| May 1, 2026 | 8-K | 2026-05-01 | 0000049938-26-000015 | View → |
| May 1, 2026 | 8-K | 2026-05-01 | 0000049938-26-000014 | View → |
| Apr 15, 2026 | 8-K | 2026-04-15 | 0000049938-26-000011 | View → |
| Feb 18, 2026 | 10-K | 2025-12-31 | 0000049938-26-000009 | View → |
| Jan 30, 2026 | 8-K | 2026-01-30 | 0000049938-26-000007 | View → |
| Jan 30, 2026 | 8-K | 2026-01-30 | 0000049938-26-000006 | View → |
| Jan 15, 2026 | 8-K | 2026-01-15 | 0000049938-26-000003 | View → |
| Dec 15, 2025 | 8-K | 2025-12-15 | 0000049938-25-000076 | View → |
| Nov 26, 2025 | 8-K/A | 2025-02-13 | 0000049938-25-000073 | View → |
| Nov 3, 2025 | 10-Q | 2025-09-30 | 0000049938-25-000070 | View → |
| Oct 31, 2025 | 8-K | 2025-10-31 | 0000049938-25-000068 | View → |
| Oct 31, 2025 | 8-K | 2025-10-31 | 0000049938-25-000067 | View → |
| Oct 15, 2025 | 8-K | 2025-10-15 | 0000049938-25-000063 | View → |
| Sep 30, 2025 | 8-K | 2025-09-29 | 0000049938-25-000061 | View → |
| Sep 17, 2025 | 8-K | 2025-09-17 | 0000049938-25-000053 | View → |
| Aug 4, 2025 | 10-Q | 2025-06-30 | 0000049938-25-000045 | View → |
| Aug 1, 2025 | 8-K | 2025-08-01 | 0000049938-25-000043 | View → |
| Aug 1, 2025 | 8-K | 2025-08-01 | 0000049938-25-000042 | View → |
| Jul 17, 2025 | 8-K | 2025-07-17 | 0000049938-25-000039 | View → |
| Jun 23, 2025 | 8-K | 2025-06-23 | 0000049938-25-000037 | View → |
| May 8, 2025 | 8-K | 2025-05-08 | 0000049938-25-000033 | View → |
| May 8, 2025 | 8-K | 2025-05-08 | 0000049938-25-000031 | View → |
| May 5, 2025 | 10-Q | 2025-03-31 | 0000049938-25-000028 | View → |
| May 2, 2025 | 8-K | 2025-05-02 | 0000049938-25-000026 | View → |
| May 2, 2025 | 8-K | 2025-05-02 | 0000049938-25-000025 | View → |
| Apr 17, 2025 | 8-K | 2025-04-17 | 0000049938-25-000022 | View → |
| Apr 16, 2025 | 8-K | 2025-04-16 | 0000049938-25-000020 | View → |
| Apr 3, 2025 | 8-K | 2025-04-03 | 0000049938-25-000018 | View → |
| Feb 19, 2025 | 10-K | 2024-12-31 | 0000049938-25-000015 | View → |
| Feb 13, 2025 | 8-K | 2025-02-13 | 0000049938-25-000012 | View → |
| Jan 31, 2025 | 8-K | 2025-01-31 | 0000049938-25-000010 | View → |
| Jan 31, 2025 | 8-K | 2025-01-31 | 0000049938-25-000008 | View → |
| Jan 16, 2025 | 8-K | 2025-01-16 | 0000049938-25-000005 | View → |
| Jan 10, 2025 | 8-K | 2025-01-10 | 0000049938-25-000003 | View → |
| Dec 12, 2024 | 8-K | 2024-12-12 | 0000049938-24-000068 | View → |
| Nov 27, 2024 | 8-K | 2024-11-27 | 0000049938-24-000066 | View → |
| Nov 4, 2024 | 10-Q | 2024-09-30 | 0000049938-24-000064 | View → |
| Nov 1, 2024 | 8-K | 2024-11-01 | 0000049938-24-000062 | View → |
| Nov 1, 2024 | 8-K | 2024-11-01 | 0000049938-24-000061 | View → |
| Oct 18, 2024 | 8-K | 2024-10-18 | 0000049938-24-000058 | View → |
| Sep 18, 2024 | 8-K | 2024-09-18 | 0000049938-24-000053 | View → |
| Aug 5, 2024 | 10-Q | 2024-06-30 | 0000049938-24-000046 | View → |
| Aug 2, 2024 | 8-K | 2024-08-02 | 0000049938-24-000043 | View → |
| Aug 2, 2024 | 8-K | 2024-08-02 | 0000049938-24-000042 | View → |
| Jul 19, 2024 | 8-K | 2024-07-19 | 0000049938-24-000039 | View → |
| Jun 24, 2024 | 8-K | 2024-06-24 | 0000049938-24-000037 | View → |
| Jun 7, 2024 | 8-K | 2024-06-07 | 0000049938-24-000034 | View → |
| May 22, 2024 | 8-K | 2024-05-22 | 0000049938-24-000032 | View → |
| May 1, 2024 | 8-K | 2024-05-01 | 0000049938-24-000028 | View → |
| Apr 30, 2024 | 8-K | 2024-04-30 | 0000049938-24-000026 | View → |
| Apr 30, 2024 | 8-K | 2024-04-30 | 0000049938-24-000024 | View → |
| Apr 29, 2024 | 10-Q | 2024-03-31 | 0000049938-24-000021 | View → |
| Apr 29, 2024 | 8-K | 2024-04-29 | 0000049938-24-000020 | View → |
| Apr 26, 2024 | 8-K | 2024-04-26 | 0000049938-24-000017 | View → |
| Apr 26, 2024 | 8-K | 2024-04-26 | 0000049938-24-000016 | View → |
| Apr 12, 2024 | 8-K | 2024-04-12 | 0000049938-24-000013 | View → |
| Feb 28, 2024 | 8-K | 2024-02-28 | 0000049938-24-000011 | View → |
| Feb 28, 2024 | 10-K | 2023-12-31 | 0000049938-24-000010 | View → |
| Feb 2, 2024 | 8-K | 2024-02-02 | 0000049938-24-000006 | View → |
| Feb 2, 2024 | 8-K | 2024-02-02 | 0000049938-24-000005 | View → |
| Jan 17, 2024 | 8-K | 2024-01-17 | 0000049938-24-000002 | View → |
| Dec 18, 2023 | 8-K | 2023-12-18 | 0000049938-23-000100 | View → |
| Dec 13, 2023 | 8-K | 2023-12-13 | 0000049938-23-000097 | View → |
| Dec 11, 2023 | 8-K | 2023-12-11 | 0000049938-23-000093 | View → |
| Oct 31, 2023 | 10-Q | 2023-09-30 | 0000049938-23-000080 | View → |
| Oct 31, 2023 | 8-K | 2023-10-30 | 0000049938-23-000077 | View → |
| Oct 27, 2023 | 8-K | 2023-10-27 | 0000049938-23-000069 | View → |
| Oct 27, 2023 | 8-K | 2023-10-27 | 0000049938-23-000067 | View → |
| Oct 27, 2023 | 8-K | 2023-10-27 | 0000049938-23-000066 | View → |
| Oct 16, 2023 | 8-K | 2023-10-16 | 0000049938-23-000060 | View → |
| Aug 1, 2023 | 10-Q | 2023-06-30 | 0000049938-23-000058 | View → |
| Jul 28, 2023 | 8-K | 2023-07-28 | 0000049938-23-000055 | View → |
| Jul 28, 2023 | 8-K | 2023-07-28 | 0000049938-23-000054 | View → |
| Jul 17, 2023 | 8-K | 2023-07-17 | 0000049938-23-000050 | View → |
| Jun 27, 2023 | 8-K | 2023-06-27 | 0000049938-23-000048 | View → |
| Jun 15, 2023 | 8-K | 2023-06-15 | 0000049938-23-000045 | View → |
| May 2, 2023 | 8-K | 2023-05-02 | 0000049938-23-000040 | View → |
| May 2, 2023 | 8-K | 2023-05-02 | 0000049938-23-000038 | View → |
| May 2, 2023 | 10-Q | 2023-03-31 | 0000049938-23-000037 | View → |
| May 1, 2023 | 8-K | 2023-05-01 | 0000049938-23-000033 | View → |
| Apr 28, 2023 | 8-K | 2023-04-28 | 0000049938-23-000030 | View → |
| Apr 28, 2023 | 8-K | 2023-04-28 | 0000049938-23-000029 | View → |
| Apr 19, 2023 | 8-K | 2023-04-19 | 0000049938-23-000026 | View → |
| Apr 17, 2023 | 8-K | 2023-04-17 | 0000049938-23-000023 | View → |
| Apr 6, 2023 | 8-K | 2023-04-06 | 0000049938-23-000021 | View → |
| Mar 16, 2023 | 8-K | 2023-03-16 | 0000049938-23-000018 | View → |
| Feb 22, 2023 | 8-K | 2023-02-22 | 0000049938-23-000016 | View → |
| Feb 22, 2023 | 10-K | 2022-12-31 | 0000049938-23-000015 | View → |
| Jan 31, 2023 | 8-K | 2023-01-31 | 0000049938-23-000008 | View → |
| Jan 31, 2023 | 8-K | 2023-01-31 | 0000049938-23-000007 | View → |
| Jan 26, 2023 | 8-K | 2023-01-26 | 0000049938-23-000004 | View → |
| Jan 19, 2023 | 8-K | 2023-01-19 | 0000049938-23-000002 | View → |
| Dec 20, 2022 | 8-K | 2022-12-19 | 0000049938-22-000017 | View → |
| Dec 14, 2022 | 8-K | 2022-12-14 | 0001193125-22-304374 | View → |
| Dec 12, 2022 | 8-K | 2022-12-12 | 0001193125-22-302315 | View → |
| Nov 2, 2022 | 10-Q | 2022-09-30 | 0000049938-22-000014 | View → |