Abpro Holdings, Inc.
ABPWW- 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 classesABPO
Q1 2026 vs. Q4 2025
How the institutions holding Abpro Holdings, Inc. changed between Q4 2025 and Q1 2026.
All holders in Q1 2026All holders in Q4 2025
| Measure | Q4 2025 | Of which not filed for Q1 2026 | Q1 2026 | Change |
|---|---|---|---|---|
| Holders | 28 | 1 | 4 | −23 |
| Shares | 7.50M | 358.4K | 429.7K | −6.71M (−94.0%) |
| Value | $135.8K | $5.88K | $1.11K | −$128.8K (−99.1%) |
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.
New holders (1)
Institutions that held Abpro Holdings, Inc. at the end of Q1 2026 but not at the end of Q4 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Mizuho Securities USA LLC | 11,386 | $23 | 0.00% |
Sold out (24)
Institutions that held Abpro Holdings, Inc. at the end of Q4 2025 and filed for Q1 2026 without it.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Saba Capital Management, L.P. | 997,048 | $16.4K |
| JPMorgan Chase & Co | – | $12.2K |
| MMCAP International Inc. SPC | 675,000 | $11.1K |
| Calamos Advisors LLC | 625,000 | $10.6K |
| CNH Partners LLC | 546,540 | $8.96K |
| Linden Advisors LP | 499,999 | $8.50K |
| Wolverine Asset Management LLC | 472,720 | $7.75K |
| Polar Asset Management Partners Inc. | 378,328 | $6.43K |
| Clear Street Group Inc. | 376,785 | $6.18K |
| D. E. Shaw & Co., Inc. | 375,000 | $5.25K |
| Aristeia Capital LLC | 273,125 | $4.64K |
| Toronto Dominion Bank | 273,798 | $4.38K |
| Davidson Kempner Capital Management LP | 250,000 | $4.10K |
| Verition Fund Management LLC | 225,000 | $3.69K |
| Tenor Capital Management Co., L.P. | 200,000 | $3.28K |
| Goldman Sachs Group Inc | 179,100 | $2.94K |
| Picton Mahoney Asset Management | 125,000 | $2.05K |
| LMR Partners LLP | 125,000 | $2.05K |
| Virtu Financial LLC | 40,488 | $1.00K |
| Sculptor Capital LP | 34,101 | $580 |
| Omers Administration Corp | 25,000 | $425 |
| Two Sigma Securities, LLC | 16,227 | $266 |
| Meteora Capital, LLC | 8,154 | $134 |
| UBS Group AG | 336 | $5 |
Not filed for Q1 2026 yet (1)
Institutions that held Abpro Holdings, Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Sandia Investment Management LP | 358,427 | $5.88K |