| Date Filed | Type | Description |
| 10/10/2023 |
8-K
| Entry into a Material Definitive Agreement, Financial Statements and Exhibits Interactive Data |
| 08/15/2023 |
8-K
| Entry into a Material Definitive Agreement, Financial Statements and Exhibits Interactive Data |
| 08/01/2023 |
10-Q
| Quarterly Report for the period ended June 30, 2023 |
| 07/20/2023 |
8-K
| Quarterly results |
| 06/02/2023 |
8-K
| Submission of Matters to a Vote of Security Holders Interactive Data |
| 05/31/2023 |
SC 13D/A
| Camac Fund, LP reports a 19.7% stake in Ambase Corp. |
| 05/11/2023 |
8-K
| Entry into a Material Definitive Agreement, Financial Statements and Exhibits Interactive Data |
| 05/02/2023 |
10-Q
| Quarterly Report for the period ended March 31, 2023 |
| 03/28/2023 |
10-K
| Annual Report for the period ended December 31, 2022 |
| 02/09/2023 |
8-K
| Entry into a Material Definitive Agreement, Financial Statements and Exhibits Interactive Data |
| 01/20/2023 |
8-K
| Amended existing or entered into new employment agreement with an officer |
| 11/03/2022 |
10-Q
| Quarterly Report for the period ended September 30, 2022 |
| 08/05/2022 |
10-Q
| Quarterly Report for the period ended June 30, 2022 |
| 06/03/2022 |
8-K
| Quarterly results |
| 05/05/2022 |
10-Q
| Quarterly Report for the period ended March 31, 2022 |
| 03/29/2022 |
DEF 14A
| Form DEF 14A - Other definitive proxy statements: |
| 03/25/2022 |
10-K
| Annual Report for the period ended December 31, 2021 |
| 02/09/2022 |
5
| BIANCO RICHARD A (CEO) has filed a Form 5 on AMBASE CORP |
| 11/09/2021 |
10-Q
| Quarterly Report for the period ended September 30, 2021 |
| 08/10/2021 |
10-Q
| Quarterly Report for the period ended June 30, 2021 |
| 06/04/2021 |
8-K
| Quarterly results |
| 05/11/2021 |
10-Q
| Quarterly Report for the period ended March 31, 2021 |
| 03/26/2021 |
DEF 14A
| Form DEF 14A - Other definitive proxy statements: |
| 03/24/2021 |
10-K
| Annual Report for the period ended December 31, 2020 |
| 02/05/2021 |
SC 13D/A
| Camac Fund, LP reports a 22.8% stake in Ambase Corp. |
| 11/10/2020 |
10-Q
| Quarterly Report for the period ended September 30, 2020 |
| 08/10/2020 |
10-Q
| Quarterly Report for the period ended June 30, 2020 |
| 06/04/2020 |
8-K
| Submission of Matters to a Vote of Security Holders |
| 05/19/2020 |
DEFA14A
| Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material: |
| 05/07/2020 |
10-Q
| Quarterly Report for the period ended March 31, 2020 |
| 03/25/2020 |
DEF 14A
| Form DEF 14A - Other definitive proxy statements: |
| 03/25/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 01/15/2020 |
8-K
| Other Events |
| 01/08/2020 |
SC 13D/A
| ISZO CAPITAL LP reports a 0% stake in AmBase Corp. |
|