---
title: "Abpro Holdings (ABPO) news: delisting"
url: "https://aibio.space/companies/abpro/"
publisher: "aibio.space (Biotech Investor Relations News)"
summary: "ABPO delisting news: Nasdaq files to remove Abpro Holdings stock and warrants from listing. Abpro Holdings Inc. (OTC: ABPO), United States."
---

ABPO Abpro Holdings Inc. OTC · United States

# Abpro Holdings (ABPO) news ABPO delisting news

Listings · 2026-09-30

## [Nasdaq files to remove Abpro Holdings stock and warrants from listing](https://aibio.space/news/nasdaq-files-remove-abpro-holdings-stock-warrants-listing/)

Nasdaq filed a Form 25 notice dated 2026-09-30 to strike Abpro Holdings' Class A Common Stock and warrants from listing. The company had already received a delisting notice effective February 23, 2026, and its shares trade on the OTC Pink Limited Market.

## Latest Abpro Holdings news

1. 2026-08-25 Company Updates [Miles Suk steps down as Abpro Holdings chairman but stays on the board](https://aibio.space/news/miles-suk-steps-down-abpro-holdings-chairman-but-stays-board/) Abpro Holdings said Miles Suk resigned as chairman of its board effective August 25, 2026. The board will appoint a successor chair at its next regularly scheduled meeting.
2. 2026-05-28 Listings [Nasdaq council upholds Abpro Holdings delisting; OTC Pink quotation expected](https://aibio.space/news/nasdaq-council-upholds-abpro-holdings-delisting-otc-pink-quotation/) Abpro Holdings said Nasdaq's Listing and Hearing Review Council reaffirmed the panel's decision to delist its common stock and public warrants.
3. 2025-10-03 Listings [Abpro Holdings faces Nasdaq delisting after missing $1.00 bid price deadline](https://aibio.space/news/abpro-holdings-faces-nasdaq-delisting-after-missing-1-00-bid-price/) Nasdaq told Abpro on September 30, 2025 that it had not regained compliance with the $1.00 minimum bid price. The company says it will ask an appeal panel for a hearing, which would stay the suspension, but the filing gives no assurance the panel will grant it more time.
4. 2025-04-15 Distress [Abpro Holdings restates prior statements over understated license liabilities](https://aibio.space/news/abpro-holdings-restates-prior-statements-understated-license/) The company found it had understated liabilities under one of its license agreements and expects a $3.3 million increase in each affected period. Statements for three earlier periods should no longer be relied upon.
5. 2025-04-01 Distress [Abpro Holdings delays annual report for fiscal year ended December 31, 2024](https://aibio.space/news/abpro-holdings-delays-annual-report-fiscal-year-ended-december-31-2024/) The company says it needs more time to prepare its financial statements and expects to file within the fifteen-day extension period.

## Abpro Holdings at a glance

- **Ticker**: ABPO

- **Listing**: OTC

- **Country**: United States

- **Cash, Jun 30, 2026**: $4.2 million

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## Abpro Holdings annual financials

| Line | FY2025 | FY2024 |
|---|---|---|
| Revenue |  | [$183,000](https://www.sec.gov/Archives/edgar/data/1893219/000121390025032133/) |
| Research and development | [$989,000](https://www.sec.gov/Archives/edgar/data/1893219/000121390026044166/) | [$3.0 million](https://www.sec.gov/Archives/edgar/data/1893219/000121390026044166/) |
| Cash from operations | [-$6.0 million](https://www.sec.gov/Archives/edgar/data/1893219/000121390026044166/) | [-$9.0 million](https://www.sec.gov/Archives/edgar/data/1893219/000121390026044166/) |
| Cash and equivalents | [$82,000](https://www.sec.gov/Archives/edgar/data/1893219/000121390026090028/) | [$2.9 million](https://www.sec.gov/Archives/edgar/data/1893219/000121390025032133/) |

Latest balance sheet, Jun 30, 2026 (10-Q): cash and equivalents $4.2 million.

Figures as reported to the SEC in XBRL; each one links to its filing. Not adjusted, not investment advice.

## Questions about Abpro Holdings

Was Abpro Holdings delisted?

Our latest story on this, dated Sep 30, 2026: "Nasdaq files to remove Abpro Holdings stock and warrants from listing". The story links the filing or release it is based on. [Read the story](https://aibio.space/news/nasdaq-files-remove-abpro-holdings-stock-warrants-listing/).

What is the ticker symbol of Abpro Holdings?

Abpro Holdings Inc. trades under the ticker ABPO on OTC.

Where is Abpro Holdings listed?

Abpro Holdings Inc. is listed on OTC.

What is the SEC CIK of Abpro Holdings?

The SEC Central Index Key (CIK) for Abpro Holdings Inc. is 1893219. Its filings are on SEC EDGAR.

How many shares does Abpro Holdings have outstanding?

5,896,048 shares as of 2026-08-14, per the cover page of its 10-Q filed 2026-08-14.

Which country or territory is Abpro Holdings listed under?

Our directory records Abpro Holdings Inc. under United States.

What does Abpro Holdings do?

Our directory classifies Abpro Holdings Inc. as: Biotechnology. This is a directory classification, not a description of the pipeline.

What is the ISIN of Abpro Holdings?

The ISIN recorded for Abpro Holdings Inc. is US0008472021.

Does aibio.space cover Abpro Holdings?

aibio.space lists Abpro Holdings Inc. among 2,820 public biotech companies and publishes its news here as stories appear.

Where is Abpro Holdings incorporated?

SEC records list its state or country of incorporation as DE.

How much does Abpro Holdings spend on research and development?

$989,000 in the fiscal year ended Dec 31, 2025, per its annual report.

How much cash does Abpro Holdings have?

$4.2 million in cash at Jun 30, 2026, per its 10-Q.

What is the latest Abpro Holdings (ABPO) stock news?

Our latest story on Abpro Holdings, dated Sep 30, 2026: "Nasdaq files to remove Abpro Holdings stock and warrants from listing". Nasdaq filed a Form 25 notice dated 2026-09-30 to strike Abpro Holdings' Class A Common Stock and warrants from listing. The company had already received a delisting notice effective February 23, 2026, and its shares trade on the OTC Pink Limited Market. [Source](https://aibio.space/news/nasdaq-files-remove-abpro-holdings-stock-warrants-listing/).

How long will Abpro Holdings's cash last?

From our story of Apr 15, 2025: The same report says management has concluded that uncertainties around its ability to raise additional capital raise substantial doubt about its ability to continue as a going concern. [Source](https://aibio.space/news/abpro-holdings-restates-prior-statements-understated-license/).

Is Abpro Holdings in financial distress?

Our latest distress story, dated Apr 15, 2025: "Abpro Holdings restates prior statements over understated license liabilities". The company found it had understated liabilities under one of its license agreements and expects a $3.3 million increase in each affected period. Statements for three earlier periods should no longer be relied upon. [Source](https://aibio.space/news/abpro-holdings-restates-prior-statements-understated-license/).

## Investor discussion: Abpro Holdings

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## Capital-markets timeline

Financings, listing notices, splits, legal actions and other investor events at Abpro Holdings, newest first. Each line links the filing it comes from.

1. 2026-09-30 Listings Filed to remove its shares from exchange listing. SEC Form 25-NSE. [Source](https://www.sec.gov/Archives/edgar/data/1893219/000135445726000926/xslF25X02/primary_doc.xml)
2. 2026-06-04 Listings Reported a notice from its stock exchange about continued listing requirements. SEC Form 8-K (Items 3.01). [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390026065372/ea0293688-8k_abpro.htm)
3. 2026-05-15 Distress Told the SEC a periodic report would be filed late. SEC Form NT 10-Q. [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390026057769/ea0291056-nt10q_abprohold.htm)
4. 2026-03-31 Distress Told the SEC a periodic report would be filed late. SEC Form NT 10-K. [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390026036634/ea0284149-nt10k_abprohold.htm)
5. 2026-02-20 Listings Reported a notice from its stock exchange about continued listing requirements. SEC Form 8-K (Items 3.01). [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390026018819/ea0277804-8k_abpro.htm)
6. 2026-02-11 Listings Reported a notice from its stock exchange about continued listing requirements. SEC Form 8-K (Items 3.01,5.02). [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390026014903/ea0276604-8k_abpro.htm)
7. 2025-12-09 Listings Reported a notice from its stock exchange about continued listing requirements. SEC Form 8-K (Items 7.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390025119439/ea026892201ex99-1_abpro.htm)
8. 2025-11-03 Listings Reported a reverse stock split. SEC Form 8-K (Items 7.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390025104887/ea026347401ex99-1_abpro.htm)
9. 2025-10-22 Listings Reported a reverse stock split. SEC Form 8-K (Items 5.03,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390025101285/ea0261855-8k_abpro.htm)
10. 2025-10-17 Listings Reported a notice from its stock exchange about continued listing requirements. SEC Form 8-K (Items 3.01). [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390025099970/ea0261475-8k_abpro.htm)
11. 2025-10-14 Listings Reported a shareholder vote on a reverse stock split or more authorized shares. SEC Form 8-K (Items 5.07). [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390025098341/ea0261099-8k_abpro.htm)
12. 2025-10-03 Listings Reported a notice from its stock exchange about continued listing requirements. SEC Form 8-K (Items 3.01). [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390025096096/ea0260136-8k_abpro.htm)
13. 2025-09-08 Listings Asked shareholders to approve a reverse stock split. SEC Form DEF 14A. [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390025085529/ea0255107-02.htm)
14. 2025-08-29 Listings Asked shareholders to approve a reverse stock split. SEC Form PRE 14A. [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390025082592/ea0255107-01.htm)
15. 2025-04-16 Listings Reported a notice from its stock exchange about continued listing requirements. SEC Form 8-K (Items 3.01). [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390025032584/ea0238473-8k_abpro.htm)
16. 2025-04-15 Legal Said earlier financial statements should no longer be relied on. SEC Form 8-K (Items 4.02). [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390025032083/ea0238185-8k_abpro.htm)
17. 2025-04-15 Distress Reported substantial doubt about its ability to continue as a going concern. SEC Form 10-K. [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390025032133/ea0234048-10k_abpro.htm)
18. 2025-04-08 Listings Reported a notice from its stock exchange about continued listing requirements. SEC Form 8-K (Items 3.01). [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390025029927/ea023744201-8k_abpro.htm)
19. 2025-04-01 Distress Told the SEC a periodic report would be filed late. SEC Form NT 10-K. [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390025026732/ea0236444-nt10k_abprohold.htm)
20. 2024-12-12 Financings Reported a financing. SEC Form 8-K (Items 7.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390024108370/ea022449301ex99-1_abprohold.htm)
21. 2024-12-10 Legal Reported a change of independent auditor. SEC Form 8-K (Items 4.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390024107083/ea022411101-8k_abprohold.htm)
22. 2024-11-15 Distress Told the SEC a periodic report would be filed late. SEC Form NT 10-Q. [Source](https://www.sec.gov/Archives/edgar/data/1893219/000121390024099093/ea0221364-nt10q_abpro.htm)
23. 2024-11-04 Financings Reported an unregistered sale of its securities. SEC Form 8-K (Items 1.01,2.03,3.02,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1893219/000119312524250197/d892646d8k.htm)
24. 2024-11-04 Mergers Reported a merger or acquisition agreement. SEC Form 425. [Source](https://www.sec.gov/Archives/edgar/data/1893219/000119312524250204/d892646d425.htm)

## Stock chart

Price chart and quote supplied by TradingView, delayed as the exchange requires. It loads only if you choose to show it. Information only, not investment advice. [Open OTC:ABPO on TradingView](https://www.tradingview.com/symbols/OTC-ABPO/).

## SEC filings and registration

- **SEC name**: Abpro Holdings, Inc.

- **CIK**: 1893219

- **Industry (SIC)**: Biological Products, (No Diagnostic Substances) (2836)

- **US tickers**: ABPO (OTC), ABPWW (OTC)

- **State or country of incorporation**: DE

- **Fiscal year ends**: December 31

- **Filer category**: Non-accelerated filer<br>Smaller reporting company<br>Emerging growth company

- **Business address**: 6 ST JOHNS LANE, FLOOR 5, NEW YORK, NY, 10013

- **Phone**: 248-890-7200

- **Shares outstanding**: 5,896,048 as of 2026-08-14 (10-Q filed 2026-08-14)

- **Former names**: Atlantic Coastal Acquisition Corp. II

### Recent filings (8-K and 6-K are the company's own announcements)

- [8-K](https://www.sec.gov/Archives/edgar/data/1893219/000121390026095822/ea0304000-8k_abpro.htm) filed 2026-09-01
- [8-K](https://www.sec.gov/Archives/edgar/data/1893219/000121390026093599/ea0303256-8k_abpro.htm) filed 2026-08-25
- [10-Q](https://www.sec.gov/Archives/edgar/data/1893219/000121390026090028/ea0300625-10q_abpro.htm) filed 2026-08-14
- [8-K](https://www.sec.gov/Archives/edgar/data/1893219/000121390026065372/ea0293688-8k_abpro.htm) filed 2026-06-04
- [10-Q](https://www.sec.gov/Archives/edgar/data/1893219/000121390026059646/ea0291193-10q_abpro.htm) filed 2026-05-20
- [10-K](https://www.sec.gov/Archives/edgar/data/1893219/000121390026044166/ea0286397-10k_abpro.htm) filed 2026-04-15
- [8-K](https://www.sec.gov/Archives/edgar/data/1893219/000121390026018819/ea0277804-8k_abpro.htm) filed 2026-02-20
- [8-K](https://www.sec.gov/Archives/edgar/data/1893219/000121390026014903/ea0276604-8k_abpro.htm) filed 2026-02-11

Source: [SEC EDGAR](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001893219), retrieved October 23, 2026. Shares outstanding is the cover-page figure from the latest periodic report. The SEC does not publish share prices.

## Listing details

Abpro Holdings Inc. is a public biotech or pharmaceutical company listed on OTC under the ticker ABPO, recorded under United States. The directory classifies it as Biotechnology. aibio.space tracks 2,820 public biotech companies worldwide and publishes investor news on them.

- **Company**: Abpro Holdings Inc.

- **Ticker**: ABPO

- **Listing**: OTC

- **Country or territory**: United States

- **Business scope**: Biotechnology

- **ISIN**: US0008472021

- **Last quote in directory**: 2026-10-21

- **Directory source**: [Listing page](https://www.tradingview.com/symbols/OTC-ABPO/)

Listing facts come from our company directory, researched on October 22, 2026. A listing record does not certify that a security currently trades. [Tell us about a change](https://aibio.space/reputation/#update). Work at this company? [Claim this page](https://aibio.space/claim/).

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---
Source page: https://aibio.space/companies/abpro/. Facts in aibio.space stories are checked against company filings and releases; opinion is labelled. Cite as: aibio.space, "Abpro Holdings (ABPO) news: delisting", 2026-10-31, https://aibio.space/companies/abpro/