AmBase Corp

Symbol
ABCP on OTC
Entity
Company
Business address
7857 West Sample Road, Suite 134, 33065 Coral Springs, FL
Phone
2012650163
Fiscal year end
December 31
Category
Non-accelerated filer
Smaller reporting company
All SEC filings
View on sec.gov
Get insider transactions for this issuer
AmBase Corp has filed 442 SEC EDGAR filings since 2/12/1996

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
8-K Open Document | Data Open Filing 8-K Sep 29, 2025 Sep 26, 2025 001-07265
8-K Open Document | Data Open Filing 8-K Sep 11, 2025 Sep 10, 2025 001-07265
10-Q Open Document | Data Open Filing QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) Aug 13, 2025 Jun 30, 2025 001-07265
8-K Open Document | Data Open Filing 8-K Jul 25, 2025 Jul 22, 2025 001-07265
8-K Open Document | Data Open Filing 8-K Jun 23, 2025 Jun 23, 2025 001-07265
8-K Open Document | Data Open Filing 8-K Jun 9, 2025 Jun 6, 2025 001-07265
8-K Open Document | Data Open Filing 8-K Jun 2, 2025 May 27, 2025 001-07265
10-Q Open Document | Data Open Filing 10-Q May 13, 2025 Mar 31, 2025 001-07265
DEFA14A Open Document Open Filing DEFA14A Apr 23, 2025 001-07265
8-K Open Document | Data Open Filing 8-K Apr 22, 2025 Apr 22, 2025 001-07265
8-K Open Document | Data Open Filing 8-K Mar 27, 2025 Mar 26, 2025 001-07265
DEF 14A Open Document | Data Open Filing DEF 14A Mar 25, 2025 Jun 6, 2025 001-07265
10-K Open Document | Data Open Filing 10-K Mar 24, 2025 Dec 31, 2024 001-07265
8-K Open Document | Data Open Filing 8-K Mar 13, 2025 Mar 10, 2025 001-07265
8-K Open Document | Data Open Filing 8-K Dec 5, 2024 Dec 4, 2024 001-07265
10-Q Open Document | Data Open Filing 10-Q Nov 13, 2024 Sep 30, 2024 001-07265
8-K Open Document | Data Open Filing 8-K Sep 24, 2024 Sep 23, 2024 001-07265
8-K Open Document | Data Open Filing 8-K Aug 21, 2024 Aug 19, 2024 001-07265
10-Q Open Document | Data Open Filing 10-Q Aug 9, 2024 Jun 30, 2024 001-07265
8-K Open Document | Data Open Filing 8-K Jun 5, 2024 Jun 4, 2024 001-07265
10-Q Open Document | Data Open Filing 10-Q May 9, 2024 Mar 31, 2024 001-07265
SC 13D/A Open Document Open Filing SC 13D/A May 1, 2024 005-36772
4 Open Document Open Filing FORM 4 May 1, 2024 Apr 30, 2024
4 Open Document Open Filing PRIMARY DOCUMENT May 1, 2024 Apr 29, 2024
8-K Open Document | Data Open Filing 8-K May 1, 2024 Apr 29, 2024 001-07265
DEFA14A Open Document Open Filing DEFA14A Apr 3, 2024 001-07265
DEF 14A Open Document Open Filing DEF 14A Apr 3, 2024 Jun 4, 2024 001-07265
SC 13D/A Open Document Open Filing SC 13D/A Apr 1, 2024 005-36772
8-K Open Document | Data Open Filing 8-K Apr 1, 2024 Apr 1, 2024 001-07265
SC 13D/A Open Document Open Filing Mar 26, 2024 005-36772
PRE 14A Open Document Open Filing PRE 14A Mar 22, 2024 Jun 4, 2024 001-07265
10-K Open Document | Data Open Filing 10-K Mar 18, 2024 Dec 31, 2023 001-07265
SC 13D/A Open Document Open Filing Mar 13, 2024 005-36772
8-K Open Document | Data Open Filing 8-K Mar 11, 2024 Mar 8, 2024 001-07265
SC 13D/A Open Document Open Filing SC 13D/A Mar 8, 2024 005-36772
4 Open Document Open Filing FORM 4 Mar 7, 2024 Feb 28, 2024
8-K Open Document | Data Open Filing 8-K Feb 28, 2024 Feb 28, 2024 001-07265
8-K Open Document | Data Open Filing 8-K Feb 27, 2024 Feb 26, 2024 001-07265
SC 13D/A Open Document Open Filing Feb 23, 2024 005-36772
8-K Open Document | Data Open Filing 8-K Feb 23, 2024 Feb 23, 2024 001-07265
SC 13D/A Open Document Open Filing Feb 20, 2024 005-36772
4 Open Document Open Filing Feb 20, 2024 Feb 15, 2024
8-K Open Document | Data Open Filing 8-K Feb 8, 2024 Feb 5, 2024 001-07265
8-K Open Document | Data Open Filing 8-K Jan 26, 2024 Jan 26, 2024 001-07265
8-K Open Document | Data Open Filing 8-K Dec 28, 2023 Dec 27, 2023 001-07265
8-K Open Document | Data Open Filing 8-K Nov 28, 2023 Nov 27, 2023 001-07265
10-Q Open Document | Data Open Filing 10-Q Nov 9, 2023 Sep 30, 2023 001-07265
4 Open Document Open Filing Oct 11, 2023 Oct 9, 2023
8-K Open Document | Data Open Filing 8-K Oct 10, 2023 Oct 6, 2023 001-07265
4 Open Document Open Filing Sep 26, 2023 Sep 22, 2023
4 Open Document Open Filing Sep 12, 2023 Sep 8, 2023
SC 13D/A Open Document Open Filing Aug 29, 2023 005-36772
4 Open Document Open Filing Aug 29, 2023 Aug 25, 2023
8-K Open Document | Data Open Filing 8-K Aug 15, 2023 Aug 15, 2023 001-07265
4 Open Document Open Filing PRIMARY DOCUMENT Aug 3, 2023 Aug 1, 2023
10-Q Open Document | Data Open Filing 10-Q Aug 1, 2023 Jun 30, 2023 001-07265
8-K Open Document | Data Open Filing 8-K Jul 20, 2023 Jul 19, 2023 001-07265
4 Open Document Open Filing Jun 29, 2023 Jun 27, 2023
8-K Open Document | Data Open Filing 8-K Jun 26, 2023 Jun 22, 2023 001-07265
4 Open Document Open Filing Jun 14, 2023 Jun 12, 2023
4 Open Document Open Filing Jun 9, 2023 Jun 7, 2023
8-K Open Document | Data Open Filing 8-K Jun 2, 2023 Jun 1, 2023 001-07265
4 Open Document Open Filing PRIMARY DOCUMENT Jun 2, 2023 Jun 1, 2023
SC 13D/A Open Document Open Filing May 31, 2023 005-36772
4 Open Document Open Filing PRIMARY DOCUMENT May 30, 2023 May 26, 2023
4 Open Document Open Filing May 26, 2023 May 8, 2023
8-K Open Document | Data Open Filing 8-K May 11, 2023 May 10, 2023 001-07265
4 Open Document Open Filing May 10, 2023 May 8, 2023
10-Q Open Document | Data Open Filing 10-Q May 2, 2023 Mar 31, 2023 001-07265
8-K Open Document | Data Open Filing 8-K Apr 10, 2023 Apr 6, 2023 001-07265
DEF 14A Open Document Open Filing AMBASE PROXY STATEMENT 2023 FOR YEAR END 2022 Mar 30, 2023 Mar 31, 2023 001-07265
10-K Open Document | Data Open Filing 10-K Mar 28, 2023 Dec 31, 2022 001-07265
8-K Open Document | Data Open Filing 8-K Feb 9, 2023 Feb 9, 2023 001-07265
4 Open Document Open Filing Jan 30, 2023 Jan 27, 2023
3 Open Document Open Filing PRIMARY DOCUMENT Jan 20, 2023 Jan 20, 2023
8-K Open Document | Data Open Filing 8-K Jan 20, 2023 Jan 20, 2023 001-07265
4 Open Document Open Filing Dec 29, 2022 Dec 27, 2022
4 Open Document Open Filing Dec 27, 2022 Dec 23, 2022
10-Q Open Document | Data Open Filing 10-Q Nov 3, 2022 Sep 30, 2022 001-07265
10-Q Open Document | Data Open Filing 10-Q Aug 5, 2022 Jun 30, 2022 001-07265
8-K Open Document | Data Open Filing 8-K Jun 3, 2022 Jun 2, 2022 001-07265
10-Q Open Document | Data Open Filing 10-Q May 5, 2022 Mar 31, 2022 001-07265
4 Open Document Open Filing PRIMARY DOCUMENT Apr 12, 2022 Apr 11, 2022
DEF 14A Open Document Open Filing PROXY STATEMENT 2022 Mar 29, 2022 Jun 2, 2022 001-07265
10-K Open Document | Data Open Filing 10-K Mar 25, 2022 Dec 31, 2021 001-07265
5 Open Document Open Filing PRIMARY DOCUMENT Feb 9, 2022 Dec 31, 2021
10-Q Open Document | Data Open Filing 10-Q Nov 9, 2021 Sep 30, 2021 001-07265
10-Q Open Document | Data Open Filing 10-Q Aug 10, 2021 Jun 30, 2021 001-07265
8-K Open Document Open Filing FORM 8-K ANNUAL MEETING VOTE RESULTS 6-3-2021 Jun 4, 2021 Jun 4, 2021 001-07265
10-Q Open Document | Data Open Filing 10-Q May 11, 2021 Mar 31, 2021 001-07265
DEF 14A Open Document Open Filing AMBASE ANNUAL PROXY STATEMENT 2021 Mar 26, 2021 Dec 31, 2020 001-07265
10-K Open Document | Data Open Filing 10-K Mar 24, 2021 Dec 31, 2020 001-07265
SC 13D/A Open Document Open Filing SC 13D/A Feb 5, 2021 005-36772
4 Open Document Open Filing PRIMARY DOCUMENT Jan 5, 2021 Jan 5, 2021
10-Q Open Document | Data Open Filing 10-Q Nov 10, 2020 Sep 30, 2020 001-07265
10-Q Open Document | Data Open Filing 10-Q Aug 10, 2020 Jun 30, 2020 001-07265
8-K Open Document Open Filing FORM 8-K ANNUAL MEETING 2020 VOTING RESULTS Jun 4, 2020 Jun 4, 2020 001-07265
4 Open Document Open Filing PRIMARY DOCUMENT May 22, 2020 May 20, 2020
4 Open Document Open Filing PRIMARY DOCUMENT May 22, 2020 May 20, 2020
DEFA14A Open Document Open Filing AMBASE CHANGE IN 2020 ANNUAL MEETING VENUE May 19, 2020 001-07265
10-Q Open Document | Data Open Filing 10-Q May 7, 2020 Mar 31, 2020 001-07265
DEF 14A Open Document Open Filing PROXY 2020 Mar 25, 2020 Dec 31, 2019 001-07265
10-K Open Document | Data Open Filing 10-K Mar 25, 2020 Dec 31, 2019 001-07265
8-K Open Document Open Filing FORM 8K ISZO CASE DISCONTINUANCE 1-2020 Jan 15, 2020 Jan 15, 2020 001-07265
3 Open Document Open Filing PRIMARY DOCUMENT Jan 9, 2020 Dec 31, 2019
SC 13D/A Open Document Open Filing AMENDMENT NO. 4 TO THE SCHEDULE 13D Jan 8, 2020 005-36772
SC 13D Open Document Open Filing SC 13D Jan 7, 2020 005-36772
4 Open Document Open Filing Jan 2, 2020 Dec 30, 2019
10-Q Open Document | Data Open Filing 10-Q Nov 12, 2019 Sep 30, 2019 001-07265
10-Q Open Document | Data Open Filing 10-Q Aug 12, 2019 Jun 30, 2019 001-07265
8-K Open Document Open Filing AMBASE ANNUAL MEETING 6-2019 VOTE RESULTS Jun 7, 2019 Jun 7, 2019 001-07265
4 Open Document Open Filing FORM 4 Jun 5, 2019 Jun 3, 2019
8-K Open Document Open Filing LFA AMENDMENT May 21, 2019 May 21, 2019 001-07265
10-Q Open Document | Data Open Filing 10-Q May 13, 2019 Mar 31, 2019 001-07265
DEF 14A Open Document Open Filing AMBASE 2019 PROXY STATEMENT Mar 27, 2019 Mar 26, 2019 001-07265
10-K Open Document | Data Open Filing 10-K Mar 27, 2019 Dec 31, 2018 001-07265
8-K Open Document Open Filing AMT TAX CREDIT CARRYFORWARD REFUND Mar 4, 2019 Mar 4, 2019 001-07265
8-K Open Document Open Filing FORM 8-K APPEAL COURT DECISION SPRUCE APPEAL Jan 18, 2019 Jan 18, 2019 001-07265
10-Q Open Document | Data Open Filing 10-Q Nov 9, 2018 Sep 30, 2018 001-07265
SC 13D/A Open Document Open Filing AMENDMENT NO. 3 TO THE SCHEDULE 13D Oct 17, 2018 005-36772
SC 13D/A Open Document Open Filing SEPTEMBER 20, 2018 Sep 21, 2018 005-36772
4 Open Document Open Filing FORM 4 Sep 20, 2018 Sep 18, 2018
4/A Open Document Open Filing FORM 4/A Sep 20, 2018 Sep 7, 2018
4/A Open Document Open Filing FORM 4/A Sep 20, 2018 Apr 30, 2018
8-K Open Document Open Filing FORM 8-K ISZO TRIGGER RIGHTS AGREE Sep 14, 2018 Sep 14, 2018 001-07265
4 Open Document Open Filing FORM 4 Sep 11, 2018 Sep 7, 2018
10-Q Open Document | Data Open Filing 10-Q Aug 13, 2018 Jun 30, 2018 001-07265
8-K Open Document Open Filing AMBASE FORM 8-K ANNUAL MTG VOTING Jun 8, 2018 Jun 8, 2018 001-07265
10-Q Open Document | Data Open Filing 10-Q May 14, 2018 Mar 31, 2018 001-07265
4/A Open Document Open Filing FORM 4/A May 3, 2018 Apr 30, 2018
4 Open Document Open Filing FORM 4 May 2, 2018 Apr 30, 2018
10-K/A Open Document Open Filing FORM 10-K AMENDMENT FOR 12-31-2017 Apr 30, 2018 Apr 30, 2018 001-07265
DEF 14A Open Document Open Filing AMBASE CORPORATION PROXY STATEMENT 2018 Apr 4, 2018 Apr 4, 2018 001-07265
10-K Open Document | Data Open Filing FORM 10-K - 12-31-2016 Mar 30, 2018 Dec 31, 2017 001-07265
8-K Open Document Open Filing FROM 8-K TAX LAW CHANGES Mar 8, 2018 Mar 6, 2018 001-07265
SC 13D/A Open Document Open Filing FEBRUARY 21, 2018 Feb 21, 2018 005-36772
8-K Open Document Open Filing COMPLETION SALE 100 PUTNAM & OTHER UPDATES Jan 31, 2018 Jan 31, 2018 001-07265
8-K Open Document Open Filing ENTER INTO CONTRACT FOR SALE 100 PUTNAM Jan 22, 2018 Jan 22, 2018 001-07265
4 Open Document Open Filing FORM 4 Dec 26, 2017 Dec 21, 2017
4 Open Document Open Filing FORM 4 Dec 6, 2017 Dec 4, 2017
4 Open Document Open Filing FORM 4 Nov 29, 2017 Nov 27, 2017
4 Open Document Open Filing FORM 4 Nov 14, 2017 Oct 11, 2017
SC 13D Open Document Open Filing NOVEMBER 14, 2017 Nov 14, 2017 005-36772
10-Q Open Document | Data Open Filing FORM 10-Q Nov 14, 2017 Sep 30, 2017 001-07265
8-K Open Document Open Filing FORM 8-K STRICT FORECLOSE & LIT FUND Sep 26, 2017 Sep 26, 2017 001-07265
8-K Open Document Open Filing 111 WEST 57TH UPDATE PRELIM INJ HEARING-APPEAL Aug 30, 2017 Aug 30, 2017 001-07265
8-K Open Document Open Filing 111 WEST UPDATE POSTPONEMENT OF PRELIMINARY INJUNCTION HEARING Aug 15, 2017 Aug 15, 2017 001-07265
10-Q Open Document | Data Open Filing Aug 11, 2017 Jun 30, 2017 001-07265
8-K Open Document Open Filing FORM 8-K 111 WEST 57TH UPDATE TRO Aug 2, 2017 Aug 2, 2017 001-07265
8-K Open Document Open Filing FORM 8-K 111 WEST 57TH UPDATE 7-17 Jul 19, 2017 Jul 19, 2017 001-07265
8-K Open Document Open Filing FORM 8-K 111 WEST 57TH UPDATE 6-2017 Jun 29, 2017 Jun 29, 2017 001-07265
8-K Open Document Open Filing FORM 8-K ANNUAL MEETING VOTING 2017 Jun 1, 2017 Jun 1, 2017 001-07265
10-Q Open Document | Data Open Filing May 11, 2017 Mar 31, 2017 001-07265
DEF 14A Open Document Open Filing AMBASE PROXY YR END 2017 ANNUAL MTG 06-01-2017 Mar 31, 2017 Mar 31, 2017 001-07265
10-K Open Document | Data Open Filing FORM 10-K - 12-31-2016 Mar 30, 2017 Dec 31, 2016 001-07265
SC 13G/A Open Document Open Filing FEBRUARY 14, 2017 Feb 14, 2017 005-36772
4 Open Document Open Filing PRIMARY DOCUMENT Dec 12, 2016 Dec 9, 2016
4 Open Document Open Filing PRIMARY DOCUMENT Dec 8, 2016 Dec 7, 2016
10-Q Open Document | Data Open Filing Nov 8, 2016 Sep 30, 2016 001-07265
10-Q Open Document | Data Open Filing Aug 11, 2016 Jun 30, 2016 001-07265
3 Open Document Open Filing PRIMARY DOCUMENT Jun 30, 2016 Jun 30, 2016
3 Open Document Open Filing PRIMARY DOCUMENT Jun 30, 2016 Jun 30, 2016
8-K Open Document Open Filing FORM 8-K NEW DIRECTORS Jun 30, 2016 Jun 30, 2016 001-07265
8-K Open Document Open Filing FORM 8-K ANNUAL MEETING VOTING RESULTS Jun 7, 2016 Jun 7, 2016 001-07265
10-Q Open Document | Data Open Filing May 12, 2016 Mar 31, 2016 001-07265
8-K Open Document Open Filing FORM 8-K JDS PMG May 2, 2016 May 2, 2016 001-07265
DEF 14A Open Document Open Filing AMBASE PROXY 2016 Apr 11, 2016 Apr 11, 2016 001-07265
PRE 14A Open Document Open Filing AMBASE PRELIMINARY PROXY 2016 Mar 31, 2016 Mar 31, 2016 001-07265
10-K Open Document | Data Open Filing FORM 10-K - 12-31-2015 Mar 29, 2016 Dec 31, 2015 001-07265
4 Open Document Open Filing FORM 4 Mar 2, 2016 Feb 29, 2016
4 Open Document Open Filing FORM 4 Feb 26, 2016 Feb 24, 2016
4 Open Document Open Filing FORM 4 Feb 19, 2016 Feb 17, 2016
SC 13G/A Open Document Open Filing FEBRUARY 16, 2016 Feb 16, 2016 005-36772
4 Open Document Open Filing FORM 4 Jan 15, 2016 Jan 13, 2016
4 Open Document Open Filing FORM 4 Dec 28, 2015 Dec 23, 2015
4 Open Document Open Filing FORM 4 Dec 8, 2015 Dec 4, 2015
4/A Open Document Open Filing FORM 4/A Nov 20, 2015 Nov 13, 2015
4 Open Document Open Filing FORM 4 Nov 17, 2015 Nov 13, 2015
4 Open Document Open Filing FORM 4 Nov 12, 2015 Nov 9, 2015
10-Q Open Document | Data Open Filing Nov 10, 2015 Sep 30, 2015 001-07265
4 Open Document Open Filing FORM 4 Sep 30, 2015 Sep 28, 2015
4 Open Document Open Filing FORM 4 Aug 28, 2015 Aug 26, 2015
4 Open Document Open Filing FORM 4 Aug 18, 2015 Aug 14, 2015
10-Q Open Document | Data Open Filing Aug 12, 2015 Jun 30, 2015 001-07265
4 Open Document Open Filing FORM 4 Aug 12, 2015 Aug 10, 2015
4 Open Document Open Filing FORM 4 Aug 3, 2015 Jul 30, 2015
4 Open Document Open Filing FORM 4 Jul 27, 2015 Jul 23, 2015
4 Open Document Open Filing FORM 4 Jul 23, 2015 Jul 21, 2015
4 Open Document Open Filing FORM 4 Jul 21, 2015 Jul 16, 2015
4/A Open Document Open Filing FORM 4/A Jul 16, 2015 Jul 14, 2015
4 Open Document Open Filing FORM 4 Jul 10, 2015 Jul 8, 2015
SC 13G/A Open Document Open Filing JULY 10, 2015 Jul 10, 2015 005-36772
4 Open Document Open Filing FORM 4 Jul 6, 2015 Jul 1, 2015
8-K Open Document Open Filing FORM 8-K, 111 WEST 57TH DEBT FINANCING Jun 30, 2015 Jun 30, 2015 001-07265
8-K Open Document Open Filing FORM 8-K, 111 WEST 57TH DEBT FINANCING Jun 30, 2015 Jun 30, 2015 001-07265
4 Open Document Open Filing FORM 4 Jun 29, 2015 Jun 25, 2015
3 Open Document Open Filing FORM 3 Jun 29, 2015 Jun 23, 2015
8-K Open Document Open Filing FORM 8-K ANNUAL MEETING SHAREHOLDER VOTE Jun 4, 2015 Jun 4, 2015 001-07265
10-Q Open Document | Data Open Filing May 13, 2015 Mar 31, 2015 001-07265
DEF 14A Open Document Open Filing AMBASE PROXY 205 Mar 31, 2015 Mar 31, 2015 001-07265
10-K Open Document | Data Open Filing FORM 10-K - 12-31-2014 Mar 30, 2015 Dec 31, 2014 001-07265
SC 13G Open Document Open Filing FEBRUARY 13, 2015 Feb 17, 2015 005-36772
8-K Open Document Open Filing IRS CONCLUDES 2012 TAX EXAM Dec 29, 2014 Dec 29, 2014 001-07265
10-Q Open Document | Data Open Filing Nov 12, 2014 Sep 30, 2014 001-07265
4 Open Document Open Filing PRIMARY DOCUMENT Oct 17, 2014 Oct 16, 2014
10-Q Open Document | Data Open Filing Aug 11, 2014 Jun 30, 2014 001-07265
4 Open Document Open Filing PRIMARY DOCUMENT Jun 17, 2014 Jun 13, 2014
4 Open Document Open Filing PRIMARY DOCUMENT Jun 13, 2014 Jun 11, 2014
8-K Open Document Open Filing FORM 8-K ANNUAL MEETING VOTING RESULTS Jun 9, 2014 Jun 9, 2014 001-07265
10-Q Open Document | Data Open Filing May 13, 2014 Mar 31, 2014 001-07265
DEF 14A Open Document Open Filing AMBASE PROXY STATEMENT 2014 Mar 31, 2014 Dec 31, 2013 001-07265
10-K Open Document | Data Open Filing FORM 10-K - 12-31-2013 Mar 26, 2014 Dec 31, 2013 001-07265
UPLOAD Open Document Open Filing Jan 30, 2014
4 Open Document Open Filing PRIMARY DOCUMENT Jan 28, 2014 Jan 24, 2014
10-Q/A Open Document Open Filing FORM 10-Q/A AMENDMENT # 1 - 06/30/2013 Jan 17, 2014 Jun 30, 2013 001-07265
CORRESP Open Document Open Filing Jan 17, 2014