Abpro Holdings, Inc.

Symbol
ABP, ABPWW on Nasdaq
Business address
6 St Johns Lane, Floor 5, New York, NY, 10013
State of incorporation
DE
Fiscal year end
December 31
Former names
Atlantic Coastal Acquisition Corp. II (to 12 Nov 2024)
Get insider transactions for this issuer
Abpro Holdings, Inc. has filed 235 SEC EDGAR filings since 02 Dec 2021

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
8-K Open Document | Data Open Filing CURRENT REPORT 15 Dec 2025 15 Dec 2025 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 09 Dec 2025 09 Dec 2025 001-41224
EFFECT Open Document Open Filing 02 Dec 2025 333-291347
S-1/A Open Document | Data Open Filing AMENDMENT NO. 1 TO FORM S-1 28 Nov 2025 333-291347
424B3 Open Document Open Filing PROSPECTUS SUPPLEMENT 17 Nov 2025 333-284021
10-Q Open Document | Data Open Filing QUARTERLY REPORT 14 Nov 2025 30 Sep 2025 001-41224
S-1 Open Document | Data Open Filing REGISTRATION STATEMENT 07 Nov 2025 333-291347
8-K/A Open Document | Data Open Filing AMENDMENT NO. 1 TO FORM 8-K 04 Nov 2025 04 Nov 2025 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 04 Nov 2025 04 Nov 2025 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 03 Nov 2025 03 Nov 2025 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 22 Oct 2025 16 Oct 2025 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 17 Oct 2025 14 Oct 2025 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 14 Oct 2025 10 Oct 2025 001-41224
DEFA14A Open Document Open Filing DEFINITIVE ADDITIONAL MATERIALS 06 Oct 2025 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 03 Oct 2025 30 Sep 2025 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 02 Oct 2025 30 Sep 2025 001-41224
DEFA14A Open Document Open Filing DEFINITIVE ADDITIONAL MATERIALS 18 Sep 2025 001-41224
DEFA14A Open Document Open Filing DEFINITIVE ADDITIONAL MATERIALS 16 Sep 2025 001-41224
DEF 14A Open Document | Data Open Filing PROXY STATEMENT 08 Sep 2025 18 Sep 2025 001-41224
PRE 14A Open Document | Data Open Filing PROXY STATEMENT 29 Aug 2025 29 Aug 2025 001-41224
424B3 Open Document Open Filing PROSPECTUS SUPPLEMENT 13 Aug 2025 333-284021
10-Q Open Document | Data Open Filing QUARTERLY REPORT 13 Aug 2025 30 Jun 2025 001-41224
4 Open Document Open Filing PRIMARY DOCUMENT 07 Aug 2025 25 Jul 2025
4 Open Document Open Filing PRIMARY DOCUMENT 04 Aug 2025 31 Jul 2025
4 Open Document Open Filing PRIMARY DOCUMENT 29 Jul 2025 25 Jul 2025
4 Open Document Open Filing PRIMARY DOCUMENT 29 Jul 2025 25 Jul 2025
8-K Open Document | Data Open Filing CURRENT REPORT 24 Jul 2025 20 Jul 2025 001-41224
S-8 Open Document Open Filing REGISTRATION STATEMENT 18 Jun 2025 333-288150
8-K Open Document | Data Open Filing CURRENT REPORT 17 Jun 2025 17 Jun 2025 001-41224
EFFECT Open Document Open Filing 12 Jun 2025 333-287492
424B3 Open Document Open Filing PROSPECTUS 12 Jun 2025 333-287492
CORRESP Open Document Open Filing 10 Jun 2025
S-1/A Open Document | Data Open Filing AMENDMENT NO. 1 TO FORM S-1 06 Jun 2025 333-287492
CORRESP Open Document Open Filing 06 Jun 2025
UPLOAD Open Document Open Filing 30 May 2025 333-287492
S-1 Open Document | Data Open Filing REGISTRATION STATEMENT 22 May 2025 333-287492
4 Open Document Open Filing PRIMARY DOCUMENT 19 May 2025 19 May 2025
424B3 Open Document Open Filing PROSPECTUS SUPPLEMENT 15 May 2025 333-284021
10-Q Open Document | Data Open Filing QUARTERLY REPORT 15 May 2025 31 Mar 2025 001-41224
EFFECT Open Document Open Filing 05 May 2025 333-284021
POS AM Open Document | Data Open Filing POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-1 01 May 2025 333-284021
4 Open Document Open Filing PRIMARY DOCUMENT 01 May 2025 29 Apr 2025
ARS Open Document Open Filing FORM ARS 30 Apr 2025 31 Dec 2024 001-41224
DEF 14A Open Document Open Filing PROXY STATEMENT 29 Apr 2025 20 May 2025 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 28 Apr 2025 27 Apr 2025 001-41224
4 Open Document Open Filing PRIMARY DOCUMENT 25 Apr 2025 23 Apr 2025
8-K Open Document | Data Open Filing CURRENT REPORT 24 Apr 2025 20 Apr 2025 001-41224
POS EX Open Document Open Filing POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-1 23 Apr 2025 333-284021
424B3 Open Document Open Filing PROSPECTUS SUPPLEMENT 23 Apr 2025 333-284021
8-K Open Document | Data Open Filing CURRENT REPORT 16 Apr 2025 10 Apr 2025 001-41224
10-K Open Document | Data Open Filing ANNUAL REPORT 15 Apr 2025 31 Dec 2024 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 15 Apr 2025 12 Apr 2025 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 08 Apr 2025 08 Apr 2025 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 08 Apr 2025 02 Apr 2025 001-41224
NT 10-K Open Document Open Filing NOTIFICATION OF LATE FILING 01 Apr 2025 31 Dec 2024 001-41224
8-K Open Document | Data Open Filing FORM 8-K 26 Mar 2025 25 Mar 2025 001-41224
DEF 14A Open Document Open Filing PROXY STATEMENT 24 Mar 2025 08 Apr 2025 001-41224
PRE 14A Open Document Open Filing PROXY STATEMENT 13 Mar 2025 13 Mar 2025 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 07 Mar 2025 03 Mar 2025 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 06 Mar 2025 05 Mar 2025 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 21 Feb 2025 21 Feb 2025 001-41224
EFFECT Open Document Open Filing 12 Feb 2025 333-284021
424B3 Open Document Open Filing PROSPECTUS 12 Feb 2025 333-284021
CORRESP Open Document Open Filing 10 Feb 2025
S-1/A Open Document | Data Open Filing AMENDMENT NO. 1 TO FORM S-1 07 Feb 2025 333-284021
CORRESP Open Document Open Filing 07 Feb 2025
UPLOAD Open Document Open Filing 03 Jan 2025 333-284021
S-1 Open Document | Data Open Filing REGISTRATION STATEMENT 23 Dec 2024 333-284021
8-K Open Document | Data Open Filing FORM 8-K 12 Dec 2024 12 Dec 2024 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 10 Dec 2024 09 Dec 2024 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 29 Nov 2024 21 Nov 2024 001-41224
8-K Open Document | Data Open Filing CURRENT REPORT 26 Nov 2024 12 Nov 2024 001-41224
10-Q Open Document | Data Open Filing QUARTERLY REPORT 26 Nov 2024 30 Sep 2024 001-41224
4/A Open Document Open Filing PRIMARY DOCUMENT 25 Nov 2024 13 Nov 2024
4 Open Document Open Filing PRIMARY DOCUMENT 25 Nov 2024 13 Nov 2024
3 Open Document Open Filing PRIMARY DOCUMENT 25 Nov 2024 13 Nov 2024
3 Open Document Open Filing PRIMARY DOCUMENT 18 Nov 2024 13 Nov 2024
3 Open Document Open Filing PRIMARY DOCUMENT 18 Nov 2024 13 Nov 2024
4 Open Document Open Filing PRIMARY DOCUMENT 15 Nov 2024 13 Nov 2024
4 Open Document Open Filing PRIMARY DOCUMENT 15 Nov 2024 13 Nov 2024
3 Open Document Open Filing PRIMARY DOCUMENT 15 Nov 2024 13 Nov 2024
3 Open Document Open Filing PRIMARY DOCUMENT 15 Nov 2024 13 Nov 2024
3 Open Document Open Filing PRIMARY DOCUMENT 15 Nov 2024 13 Nov 2024
NT 10-Q Open Document Open Filing NOTIFICATION OF LATE FILING 15 Nov 2024 30 Sep 2024 001-41224
8-K Open Document | Data Open Filing 8-K 13 Nov 2024 13 Nov 2024 001-41224
25-NSE Open Document Open Filing 12 Nov 2024 333-261459
425 Open Document Open Filing 425 08 Nov 2024 001-41224
8-K Open Document | Data Open Filing 8-K 08 Nov 2024 08 Nov 2024 001-41224
425 Open Document Open Filing 425 08 Nov 2024 001-41224
8-K Open Document | Data Open Filing 8-K 08 Nov 2024 07 Nov 2024 001-41224
425 Open Document Open Filing 425 08 Nov 2024 001-41224
8-K Open Document | Data Open Filing 8-K 08 Nov 2024 07 Nov 2024 001-41224
425 Open Document Open Filing 425 06 Nov 2024 001-41224
8-K Open Document | Data Open Filing 8-K 06 Nov 2024 05 Nov 2024 001-41224
425 Open Document Open Filing 425 04 Nov 2024 001-41224
8-K Open Document | Data Open Filing 8-K 04 Nov 2024 30 Oct 2024 001-41224
SEC STAFF LETTER Open Document Open Filing 24 Oct 2024
425 Open Document Open Filing 425 21 Oct 2024 001-41224
8-K Open Document | Data Open Filing 8-K 21 Oct 2024 16 Oct 2024 001-41224
EFFECT Open Document Open Filing 18 Oct 2024 333-276618
424B3 Open Document Open Filing 424B3 18 Oct 2024 333-276618
S-4/A Open Document | Data Open Filing S-4/A 17 Oct 2024 333-276618
CORRESP Open Document Open Filing 16 Oct 2024
425 Open Document Open Filing 425 15 Oct 2024 001-41224
8-K Open Document | Data Open Filing 8-K 15 Oct 2024 15 Oct 2024 001-41224
CORRESP Open Document Open Filing 09 Oct 2024
S-4/A Open Document | Data Open Filing S-4/A 09 Oct 2024 333-276618
8-K Open Document | Data Open Filing 8-K 20 Sep 2024 19 Sep 2024 001-41224
UPLOAD Open Document Open Filing 19 Sep 2024 333-276618
DEFA14A Open Document Open Filing DEFA14A 16 Sep 2024 001-41224
DEFA14A Open Document Open Filing DEFA14A 13 Sep 2024 001-41224
DEFA14A Open Document Open Filing DEFA14A 10 Sep 2024 001-41224
S-4/A Open Document | Data Open Filing S-4/A 06 Sep 2024 333-276618
UPLOAD Open Document Open Filing 05 Sep 2024 001-41224
425 Open Document Open Filing 425 04 Sep 2024 001-41224
8-K Open Document | Data Open Filing 8-K 04 Sep 2024 04 Sep 2024 001-41224
DEF 14A Open Document Open Filing DEF 14A 04 Sep 2024 16 Sep 2024 001-41224
CORRESP Open Document Open Filing 03 Sep 2024
UPLOAD Open Document Open Filing 30 Aug 2024 001-41224
425 Open Document Open Filing 425 29 Aug 2024 001-41224
8-K Open Document | Data Open Filing 8-K 28 Aug 2024 22 Aug 2024 001-41224
10-Q Open Document | Data Open Filing 10-Q 23 Aug 2024 30 Jun 2024 001-41224
PRE 14A Open Document Open Filing PRE 14A 20 Aug 2024 16 Sep 2024 001-41224
8-K Open Document | Data Open Filing 8-K 19 Aug 2024 16 Aug 2024 001-41224
NT 10-Q Open Document Open Filing NT 10-Q 14 Aug 2024 30 Jun 2024 001-41224
8-K Open Document | Data Open Filing 8-K 06 Aug 2024 31 Jul 2024 001-41224
8-K Open Document | Data Open Filing 8-K 19 Jul 2024 18 Jul 2024 001-41224
10-Q Open Document | Data Open Filing 10-Q 09 Jul 2024 31 Mar 2024 001-41224
8-K Open Document | Data Open Filing 8-K 18 Jun 2024 14 Jun 2024 001-41224
8-K Open Document | Data Open Filing 8-K 07 Jun 2024 03 Jun 2024 001-41224
425 Open Document Open Filing 425 31 May 2024 001-41224
8-K Open Document | Data Open Filing 8-K 31 May 2024 30 May 2024 001-41224
8-K Open Document | Data Open Filing 8-K 17 May 2024 16 May 2024 001-41224
NT 10-Q Open Document Open Filing NT 10-Q 15 May 2024 31 Mar 2024 001-41224
SEC STAFF LETTER Open Document Open Filing 10 May 2024
CORRESP Open Document Open Filing 30 Apr 2024
S-4/A Open Document | Data Open Filing S-4/A 30 Apr 2024 333-276618
425 Open Document Open Filing 425 23 Apr 2024 001-41224
8-K Open Document | Data Open Filing 8-K 23 Apr 2024 18 Apr 2024 001-41224
UPLOAD Open Document Open Filing 17 Apr 2024 333-276618
8-K Open Document | Data Open Filing 8-K 16 Apr 2024 10 Apr 2024 001-41224
425 Open Document Open Filing 425 03 Apr 2024 001-41224
8-K Open Document | Data Open Filing 8-K 03 Apr 2024 02 Apr 2024 001-41224
CORRESP Open Document Open Filing 02 Apr 2024
S-4/A Open Document | Data Open Filing S-4/A 02 Apr 2024 333-276618
10-K/A Open Document | Data Open Filing 10-K/A 01 Apr 2024 31 Dec 2023 001-41224
10-K Open Document | Data Open Filing FORM 10-K 29 Mar 2024 31 Dec 2023 001-41224
8-K Open Document | Data Open Filing 8-K 19 Mar 2024 15 Mar 2024 001-41224
425 Open Document Open Filing 425 13 Mar 2024 001-41224
UPLOAD Open Document Open Filing 15 Feb 2024 333-276618
SC 13G/A Open Document Open Filing FORM SC 13G/A 07 Feb 2024 005-93272
425 Open Document Open Filing 425 22 Jan 2024 001-41224
8-K Open Document | Data Open Filing 8-K 22 Jan 2024 22 Jan 2024 001-41224
S-4 Open Document | Data Open Filing S-4 19 Jan 2024 333-276618
SC 13G/A Open Document Open Filing ATLANTIC COASTAL ACQUISITION CORP. II 19 Jan 2024 005-93272
425 Open Document Open Filing 425 19 Jan 2024 001-41224
8-K Open Document | Data Open Filing 8-K 19 Jan 2024 18 Jan 2024 001-41224
8-K Open Document | Data Open Filing 8-K 18 Dec 2023 15 Dec 2023 001-41224
10-Q Open Document | Data Open Filing 10-Q 15 Dec 2023 30 Sep 2023 001-41224
8-K Open Document | Data Open Filing 8-K 14 Dec 2023 14 Dec 2023 001-41224
DEFA14A Open Document Open Filing DEFA14A 14 Dec 2023 001-41224
DEFA14A Open Document Open Filing DEFA14A 12 Dec 2023 001-41224
425 Open Document Open Filing 425 12 Dec 2023 001-41224
8-K Open Document | Data Open Filing 8-K 12 Dec 2023 11 Dec 2023 001-41224
UPLOAD Open Document Open Filing 05 Dec 2023
CORRESP Open Document Open Filing 01 Dec 2023
DEF 14A Open Document Open Filing DEF 14A 01 Dec 2023 15 Dec 2023 001-41224
NT 10-Q Open Document Open Filing NT 10-Q 14 Nov 2023 30 Sep 2023 001-41224
3 Open Document Open Filing 3 08 Nov 2023 07 Nov 2023
4 Open Document Open Filing 4 08 Nov 2023 06 Nov 2023
4 Open Document Open Filing FORM 4 SUBMISSION 08 Nov 2023 06 Nov 2023
8-K Open Document | Data Open Filing 8-K 07 Nov 2023 06 Nov 2023 001-41224
PRE 14A Open Document Open Filing PRE 14A 03 Nov 2023 05 Dec 2023 001-41224
8-K Open Document | Data Open Filing 8-K 18 Oct 2023 14 Oct 2023 001-41224
425 Open Document Open Filing 425 21 Sep 2023 001-41224
8-K Open Document | Data Open Filing 8-K 21 Sep 2023 18 Sep 2023 001-41224
10-Q Open Document | Data Open Filing 10-Q 22 Aug 2023 30 Jun 2023 001-41224
NT 10-Q Open Document Open Filing NT 10-Q 14 Aug 2023 30 Jun 2023 001-41224
10-Q Open Document | Data Open Filing 10-Q 22 May 2023 31 Mar 2023 001-41224
NT 10-Q Open Document Open Filing NT 10-Q 15 May 2023 31 Mar 2023 001-41224
SC 13D Open Document Open Filing SC 13D 20 Apr 2023 005-93272
4 Open Document Open Filing FORM 4 SUBMISSION 19 Apr 2023 18 Apr 2023
4 Open Document Open Filing FORM 4 SUBMISSION 19 Apr 2023 18 Apr 2023
4 Open Document Open Filing FORM 4 SUBMISSION 19 Apr 2023 18 Apr 2023
4 Open Document Open Filing FORM 4 SUBMISSION 19 Apr 2023 18 Apr 2023
4 Open Document Open Filing FORM 4 SUBMISSION 19 Apr 2023 18 Apr 2023
4 Open Document Open Filing FORM 4 SUBMISSION 19 Apr 2023 18 Apr 2023
8-K Open Document | Data Open Filing 8-K 18 Apr 2023 18 Apr 2023 001-41224
DEFA14A Open Document Open Filing DEFA14A 12 Apr 2023 001-41224
8-K Open Document | Data Open Filing 8-K 12 Apr 2023 12 Apr 2023 001-41224
DEFA14A Open Document Open Filing DEFA14A 05 Apr 2023 001-41224
8-K Open Document | Data Open Filing 8-K 05 Apr 2023 05 Apr 2023 001-41224
10-K Open Document | Data Open Filing FORM 10-K 03 Apr 2023 31 Dec 2022 001-41224
NT 10-K Open Document Open Filing NT 10-K 31 Mar 2023 31 Dec 2022 001-41224
DEFA14A Open Document Open Filing DEFA14A 22 Mar 2023 001-41224
DEF 14A Open Document Open Filing DEF 14A 20 Mar 2023 12 Apr 2023 001-41224
PRE 14A Open Document Open Filing PRE 14A 23 Feb 2023 23 Feb 2023 001-41224
SC 13G/A Open Document Open Filing FORM SC 13G/A 14 Feb 2023 005-93272
SC 13G/A Open Document Open Filing FORM SC 13G/A 14 Feb 2023 005-93272
SC 13G Open Document Open Filing FORM SC 13G 14 Feb 2023 005-93272
SC 13G Open Document Open Filing ATLANTIC COASTAL ACQUISITION CORP. II 02 Feb 2023 005-93272
UPLOAD Open Document Open Filing 12 Dec 2022
CORRESP Open Document Open Filing 01 Dec 2022
UPLOAD Open Document Open Filing 16 Nov 2022
10-Q Open Document | Data Open Filing 10-Q 10 Nov 2022 30 Sep 2022 001-41224
10-Q Open Document | Data Open Filing 10-Q 11 Aug 2022 30 Jun 2022 001-41224
SC 13G Open Document Open Filing FORM SC 13G 27 May 2022 005-93272
10-Q Open Document | Data Open Filing FORM 10-Q 20 May 2022 31 Mar 2022 001-41224
NT 10-Q Open Document Open Filing NT 10-Q 16 May 2022 31 Mar 2022 001-41224
10-K Open Document Open Filing FORM 10-K 25 Mar 2022 31 Dec 2021 001-41224
8-K Open Document Open Filing 8-K 04 Mar 2022 04 Mar 2022 001-41224
8-K Open Document Open Filing 8-K 25 Jan 2022 19 Jan 2022 001-41224
SC 13G Open Document Open Filing FORM SC 13G 25 Jan 2022 005-93272
3 Open Document Open Filing FORM 3 SUBMISSION 20 Jan 2022 13 Jan 2022
4 Open Document Open Filing FORM 4 SUBMISSION 19 Jan 2022 19 Jan 2022
8-K Open Document Open Filing 8-K 19 Jan 2022 13 Jan 2022 001-41224
424B4 Open Document Open Filing 424B4 18 Jan 2022 333-261459
EFFECT Open Document Open Filing 13 Jan 2022 333-261459
S-1MEF Open Document Open Filing S-1MEF 13 Jan 2022 333-262159
3 Open Document Open Filing FORM 3 SUBMISSION 13 Jan 2022 13 Jan 2022
3 Open Document Open Filing FORM 3 SUBMISSION 13 Jan 2022 13 Jan 2022
3 Open Document Open Filing FORM 3 SUBMISSION 13 Jan 2022 13 Jan 2022
3 Open Document Open Filing FORM 3 SUBMISSION 13 Jan 2022 13 Jan 2022
3 Open Document Open Filing FORM 3 SUBMISSION 13 Jan 2022 13 Jan 2022
3 Open Document Open Filing FORM 3 SUBMISSION 13 Jan 2022 13 Jan 2022
3 Open Document Open Filing FORM 3 SUBMISSION 13 Jan 2022 13 Jan 2022
3 Open Document Open Filing FORM 3 SUBMISSION 13 Jan 2022 13 Jan 2022
CERT Open Document Open Filing 13 Jan 2022 001-41224
8-A12B Open Document Open Filing 8-A12B 13 Jan 2022 001-41224
CORRESP Open Document Open Filing 12 Jan 2022
CORRESP Open Document Open Filing 12 Jan 2022
S-1/A Open Document Open Filing S-1/A 06 Jan 2022 333-261459
S-1/A Open Document Open Filing S-1/A 20 Dec 2021 333-261459
UPLOAD Open Document Open Filing 13 Dec 2021
S-1 Open Document Open Filing S-1 02 Dec 2021 333-261459