Abpro Holdings, Inc.
ABPO- Exchange
- OTC
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001893219
No open-market purchases or sales by Abpro Holdings, Inc. insiders were filed in the last 90 days; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.
Other share classesABPWW
Holders of 5% or more of ABPO
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Abpro Holdings, Inc., largest stake first. The change is against the holder's previous filing.
No holder currently reports owning 5% or more of Abpro Holdings, Inc. on Schedule 13D or 13G.
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
11 Schedule 13D and 13G filings on Abpro Holdings, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 11, 20266:59 PM ET | Goldman Sachs Group Incand 1 other | 13G/A | 3.00%180.7K shares | −3.80 ppfrom 6.80%Below 5% | Jun 30, 2026 | SEC |
| Feb 9, 20264:07 PM ET | Goldman Sachs Group Incand 1 other | 13G | 6.80%196.5K shares | New | Dec 31, 2025 | SEC |
| Feb 7, 2024 | Saba Capital Management, L.P. | 13G/AOld format | – | – | – | SEC |
| Jan 19, 2024 | Highbridge Capital Management LLC | 13G/AOld format | – | – | – | SEC |
| Apr 20, 2023 | Atlantic Coastal Acquisition Management II LLC | 13DOld format | – | New | – | SEC |
| Feb 14, 2023 | MMCAP International Inc. SPC | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2023 | Saba Capital Management, L.P. | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2023 | HGC Investment Management Inc. | 13GOld format | – | New | – | SEC |
| Feb 2, 2023 | Highbridge Capital Management LLC | 13GOld format | – | New | – | SEC |
| May 27, 2022 | Saba Capital Management, L.P. | 13GOld format | – | New | – | SEC |
| Jan 25, 2022 | MMCAP International Inc. SPC | 13GOld format | – | New | – | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Abpro Holdings, Inc. shares.
No Form 144 notices for Abpro Holdings, Inc. are on file.