Abpro Holdings, Inc. SEC filings ABPO
Abpro Holdings, Inc. has 253 filings in SEC EDGAR's recent list, going back to Dec 2, 2021. Its latest annual report, Form 10-K, was filed on Apr 15, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 14, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 1, 2026 (officer or director change). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 11, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 9, 2026 | — |
| 4 | Insider transaction | Aug 7, 2025 | Jul 25, 2025 |
| 4 | Insider transaction | Aug 4, 2025 | Jul 31, 2025 |
| 4 | Insider transaction | Jul 29, 2025 | Jul 25, 2025 |
| 4 | Insider transaction | Jul 29, 2025 | Jul 25, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 1, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | Apr 25, 2025 | Apr 23, 2025 |
| 4/A | Primary document | Nov 25, 2024 | Nov 13, 2024 |
| 4 | Insider transaction | Nov 25, 2024 | Nov 13, 2024 |
| 3 | Initial insider ownership | Nov 25, 2024 | Nov 13, 2024 |
| 3 | Initial insider ownership | Nov 18, 2024 | Nov 13, 2024 |
| 3 | Initial insider ownership | Nov 18, 2024 | Nov 13, 2024 |
| 4 | Insider transaction | Nov 15, 2024 | Nov 13, 2024 |
| 4 | Insider transaction | Nov 15, 2024 | Nov 13, 2024 |
| 3 | Initial insider ownership | Nov 15, 2024 | Nov 13, 2024 |
| 3 | Initial insider ownership | Nov 15, 2024 | Nov 13, 2024 |
| 3 | Initial insider ownership | Nov 15, 2024 | Nov 13, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 7, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 19, 2024 | — |
| 3 | Initial insider ownership | Nov 8, 2023 | Nov 7, 2023 |
| 4 | Insider transaction | Nov 8, 2023 | Nov 6, 2023 |
| 4 | Insider transaction | Nov 8, 2023 | Nov 6, 2023 |
| SC 13D | Ownership over 5% (active) | Apr 20, 2023 | — |
| 4 | Insider transaction | Apr 19, 2023 | Apr 18, 2023 |
| 4 | Insider transaction | Apr 19, 2023 | Apr 18, 2023 |
| 4 | Insider transaction | Apr 19, 2023 | Apr 18, 2023 |
| 4 | Insider transaction | Apr 19, 2023 | Apr 18, 2023 |
| 4 | Insider transaction | Apr 19, 2023 | Apr 18, 2023 |
| 4 | Insider transaction | Apr 19, 2023 | Apr 18, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 2, 2023 | — |
| SC 13G | Ownership over 5% (passive) | May 27, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Jan 25, 2022 | — |
| 3 | Initial insider ownership | Jan 20, 2022 | Jan 13, 2022 |
| 4 | Insider transaction | Jan 19, 2022 | Jan 19, 2022 |
| 3 | Initial insider ownership | Jan 13, 2022 | Jan 13, 2022 |
| 3 | Initial insider ownership | Jan 13, 2022 | Jan 13, 2022 |
| 3 | Initial insider ownership | Jan 13, 2022 | Jan 13, 2022 |
| 3 | Initial insider ownership | Jan 13, 2022 | Jan 13, 2022 |
| 3 | Initial insider ownership | Jan 13, 2022 | Jan 13, 2022 |
| 3 | Initial insider ownership | Jan 13, 2022 | Jan 13, 2022 |
| 3 | Initial insider ownership | Jan 13, 2022 | Jan 13, 2022 |
| 3 | Initial insider ownership | Jan 13, 2022 | Jan 13, 2022 |
Showing 47 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Biological Products, (No Diagnostic Substances) (SIC 2836)
- Listed as
- ABPO (OTC), ABPWW (OTC)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- New York, NY
- SEC filer status
- Non-accelerated filer, Smaller reporting company, Emerging growth company
- SEC CIK
- 1893219
- Former names
- Atlantic Coastal Acquisition Corp. II (until Nov 12, 2024)
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All 182 Biological Products, (No Diagnostic Substances) companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.