AmBase Corp — All Filings
449 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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S-8
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UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 8-K | 8-K | 0001140361-24-004045 | Jan 26, 2024 | — |
| 8-K | 8-K | 0001140361-23-059869 | Dec 28, 2023 | Dec 27, 2023 |
| 8-K | 8-K | 0001140361-23-055033 | Nov 28, 2023 | Nov 27, 2023 |
| 10-Q | 10-Q | 0001140361-23-052306 | Nov 9, 2023 | Sep 30, 2023 |
| 4 | — | 0001493152-23-036954 | Oct 11, 2023 | Oct 9, 2023 |
| 8-K | 8-K | 0001140361-23-047577 | Oct 10, 2023 | Oct 6, 2023 |
| 4 | — | 0001493152-23-033794 | Sep 26, 2023 | Sep 22, 2023 |
| 4 | — | 0001493152-23-032390 | Sep 12, 2023 | Sep 8, 2023 |
| 4 | — | 0001493152-23-030523 | Aug 29, 2023 | Aug 25, 2023 |
| SC 13D/A | — | 0001493152-23-030525 | Aug 29, 2023 | — |
| 8-K | 8-K | 0001140361-23-039899 | Aug 15, 2023 | — |
| 4 | PRIMARY DOCUMENT | 0000020639-23-000007 | Aug 3, 2023 | Aug 1, 2023 |
| 10-Q | 10-Q | 0001140361-23-037329 | Aug 1, 2023 | Jun 30, 2023 |
| 8-K | 8-K | 0001140361-23-035420 | Jul 20, 2023 | Jul 19, 2023 |
| 4 | — | 0001493152-23-022978 | Jun 29, 2023 | Jun 27, 2023 |
| 8-K | 8-K | 0001140361-23-031436 | Jun 26, 2023 | Jun 22, 2023 |
| 4 | — | 0001493152-23-021303 | Jun 14, 2023 | Jun 12, 2023 |
| 4 | — | 0001493152-23-020724 | Jun 9, 2023 | Jun 7, 2023 |
| 8-K | 8-K | 0001140361-23-027973 | Jun 2, 2023 | Jun 1, 2023 |
| 4 | PRIMARY DOCUMENT | 0000020639-23-000006 | Jun 2, 2023 | Jun 1, 2023 |
| SC 13D/A | — | 0001493152-23-019615 | May 31, 2023 | — |
| 4 | PRIMARY DOCUMENT | 0000020639-23-000005 | May 30, 2023 | May 26, 2023 |
| 4 | — | 0001493152-23-019379 | May 26, 2023 | May 8, 2023 |
| 8-K | 8-K | 0001140361-23-024103 | May 11, 2023 | May 10, 2023 |
| 4 | — | 0001493152-23-016131 | May 10, 2023 | May 8, 2023 |
| 10-Q | 10-Q | 0001140361-23-022379 | May 2, 2023 | Mar 31, 2023 |
| 8-K | 8-K | 0001140361-23-017579 | Apr 10, 2023 | Apr 6, 2023 |
| DEF 14A | AMBASE PROXY STATEMENT 2023 FOR YEAR END 2022 | 0000020639-23-000004 | Mar 30, 2023 | Mar 31, 2023 |
| 10-K | 10-K | 0001140361-23-014268 | Mar 28, 2023 | Dec 31, 2022 |
| 8-K | 8-K | 0001140361-23-005541 | Feb 9, 2023 | — |
| 4 | — | 0001493152-23-002892 | Jan 30, 2023 | Jan 27, 2023 |
| 8-K | 8-K | 0001140361-23-002247 | Jan 20, 2023 | — |
| 3 | PRIMARY DOCUMENT | 0001963004-23-000001 | Jan 20, 2023 | — |
| 4 | — | 0001493152-22-036755 | Dec 29, 2022 | Dec 27, 2022 |
| 4 | — | 0001493152-22-036545 | Dec 27, 2022 | Dec 23, 2022 |
| 10-Q | 10-Q | 0001140361-22-039782 | Nov 3, 2022 | Sep 30, 2022 |
| 10-Q | 10-Q | 0001140361-22-028298 | Aug 5, 2022 | Jun 30, 2022 |
| 8-K | 8-K | 0001140361-22-021762 | Jun 3, 2022 | Jun 2, 2022 |
| 10-Q | 10-Q | 0001140361-22-017767 | May 5, 2022 | Mar 31, 2022 |
| 4 | PRIMARY DOCUMENT | 0001248915-22-000079 | Apr 12, 2022 | Apr 11, 2022 |
| DEF 14A | PROXY STATEMENT 2022 | 0001140361-22-011586 | Mar 29, 2022 | Jun 2, 2022 |
| 10-K | 10-K | 0001140361-22-011171 | Mar 25, 2022 | Dec 31, 2021 |
| 5 | PRIMARY DOCUMENT | 0000020639-22-000002 | Feb 9, 2022 | Dec 31, 2021 |
| 10-Q | 10-Q | 0001140361-21-037149 | Nov 9, 2021 | Sep 30, 2021 |
| 10-Q | 10-Q | 0001140361-21-027753 | Aug 10, 2021 | Jun 30, 2021 |
| 8-K | FORM 8-K ANNUAL MEETING VOTE RESULTS 6-3-2021 | 0000020639-21-000007 | Jun 4, 2021 | — |
| 10-Q | 10-Q | 0001140361-21-016820 | May 11, 2021 | Mar 31, 2021 |
| DEF 14A | AMBASE ANNUAL PROXY STATEMENT 2021 | 0000020639-21-000005 | Mar 26, 2021 | Dec 31, 2020 |
| 10-K | 10-K | 0001140361-21-009786 | Mar 24, 2021 | Dec 31, 2020 |
| SC 13D/A | SC 13D/A | 0001140361-21-003556 | Feb 5, 2021 | — |