ABPO on OTC

Abpro Holdings, Inc.

Abpro Holdings, Inc. is an American biological products company, incorporated in Delaware.1 It is headquartered in New York, New York.1 Its shares trade on OTC under the symbol ABPO.1

$0.40 up 0.01 (3.36%)Price as of Oct 15, 2026 at 17:33 UTC

Last updated Oct 21, 2026.

Overview

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  • TickerABPO on OTC1
  • IndustryBiological Products, (No Diagnostic Substances)1
  • HeadquartersNew York, New York1
  • Incorporated inDE3
  • Business address6 St Johns Lane, Floor 5, New York, Ny 100133
  • Filer categoryNon-accelerated filer, Smaller reporting company, Emerging growth company3

Ratio”), and the remaining amount was reclassified to additional paid-in capital.4 From its latest annual report

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2024

-5421.3%Operating margin5
-3951.9%Net margin5
50.0%Revenue growth, 20246

Where the money goes

Where each dollar of revenue went, fiscal 2024

  • Research and development100¢$3.0M

Out of $183.0K in revenue.65 The company lost money this year.

Financial statements

Revenue6$183.0K in 2024+50% since 2023
0$50.0K$100.0K$150.0K$200.0K2023: $122.0K$122.0K20232024: $183.0K$183.0K2024+50%
Operating income765-$9.9M in 2024+384% since 2022
-$15.0M-$10.0M-$5.0M02022: -$2.1M-$2.1M20222023: -$11.7M-$11.7M2023+473%2024: -$9.9M-$9.9M2024−16%
Net income75-$7.2M in 2024
-$10.0M-$5.0M0$5.0M2022: $886.9K$886.9K20222023: $2.8M$2.8M2023+218%2024: -$7.2M-$7.2M2024

Every line of the income statement as filed: the last 2 fiscal years, latest first.5

Period ending2025-12-312024-12-31
Research and development$989.0K$3.0M
General and administrative$7.5M$7.1M
Total operating expenses$8.5M$10.1M
Loss from operations-$8.5M-$9.9M
Derecognition of Mabwell liability (see Note 19)$3.3M
Gain on reversal of excise taxes payable (see Note 10)$4.4M
Other income (see Note 2)$3.6M
Change in fair value of forward purchase agreement asset-$23.0K-$339.0K
Change in fair value of SEPA put rights asset-$92.0K-$312.0K
Change in fair value of embedded derivative liability-$773.0K-$11.0K
Gain on extinguishment of accrued liabilities$200.0K$173.0K
Loss on settlement of convertible notes-$358.0K
Interest income$33.0K$9.0K
Interest expense-$1.1M-$387.0K
Total other income, net$5.6M$2.7M
Net loss-$2.9M-$7.2M
Deemed dividend resulting from the warrant down round-$10.2M
Net loss attributable to common stockholders-$2.9M-$17.4M
Basic (in Dollars per share)-$1.30-$22.31
diluted (in Dollars per share)-$1.30-$22.31
Weighted average shares outstanding - basic (in Shares)2.2M shares780.3K shares
Weighted average shares outstanding - diluted (in Shares)2.2M shares780.3K shares

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Corporate structure

Abpro Holdings, Inc. sits at the top of its group. 1 entity, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of Abpro Holdings, Inc.

  • Abpro Holdings, Inc. New York, New York

Built from major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What Abpro Holdings, Inc. reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Property and equipment

ItemLatestA year beforeChange
Property and equipment, before depreciation$2.7M5 Dec 31, 2024$2.7M6 Dec 31, 20230%
Accumulated depreciation$2.7M5 Dec 31, 2024$2.6M6 Dec 31, 2023+2.5%
Property and equipment, net$37.0K5 Dec 31, 2024$102.0K6 Dec 31, 2023−63.7%
Operating-lease assets (leased space)$418.0K5 Dec 31, 2024$966.0K6 Dec 31, 2023−56.7%

Investments

ItemLatestA year beforeChange
Cash and cash equivalents$2.9M6 Dec 31, 2024$723.0K6 Dec 31, 2023+294.2%

Properties, in its own words

Our principal offices are located at 100 Summit Drive, Burlington, Massachusetts 01803. We operate under a short-term shared office lease (month-to-month with a term of less than 12 months), which commenced in August 2025.

Prior to August 2025, we operated from 68 Cummings Park Drive, Woburn, Massachusetts 01801. That lease was terminated in July 2025. We also occupied approximately 2,800 square feet of office and laboratory space in Burlington, Massachusetts, under a lease that expired on April 30, 2025, which we used primarily for research and development activities.

The rest of Item 2

We believe that our current facilities are adequate for our current needs.

Item 2 of the 10-K filed Apr 15, 2026.4

Leadership

Who has led Abpro Holdings, Inc., and when. Pick a name to see everywhere that person has worked.

Board members and other officers (13)

Former names

  • Atlantic Coastal Acquisition Corp. IIDec 2, 2021 to Nov 12, 20243

Timeline

  1. Sep 1, 20268-K Executive or director change25
  2. Aug 25, 20268-K Executive or director change26
  3. Jun 4, 20268-K Listing notice or transfer27
  4. Feb 20, 20268-K Listing notice or transfer28
  5. Feb 11, 20268-K Listing notice or transfer; Executive or director change29
  6. Feb 3, 20268-K Executive or director change30
  7. Jan 23, 20268-K Entered a material agreement; New debt or obligation; Executive or director change31
  8. Jan 6, 20268-K Regulation FD disclosure32
  9. Dec 15, 20258-K Regulation FD disclosure33
  10. Dec 9, 20258-K Regulation FD disclosure34
  11. Nov 4, 20258-K Regulation FD disclosure35
  12. Nov 4, 20258-K Regulation FD disclosure36
  13. Nov 15, 2024New chief executive Jin Wook (miles) Suk becomes CEO11
  14. Jan 13, 2022New chief executive Shahraab Ahmad becomes CEO12

Filings

253 filings to the SEC since October 2021: 7 annual reports, 14 quarterly reports, 70 major events, 36 insider forms, 11 large holders, 115 other. The latest 20:

  1. Sep 30, 202625-NSE EDGAR
  2. Sep 1, 20268-K CURRENT REPORT EDGAR
  3. Aug 25, 20268-K CURRENT REPORT EDGAR
  4. Aug 14, 202610-Q QUARTERLY REPORT EDGAR
  5. Aug 11, 2026SCHEDULE 13G/A EDGAR
  6. Jun 4, 20268-K CURRENT REPORT EDGAR
  7. May 20, 202610-Q QUARTERLY REPORT EDGAR
  8. May 15, 2026NT 10-Q NOTIFICATION OF LATE FILING EDGAR
  9. May 1, 202610-K/A AMENDMENT NO. 1 TO FORM 10-K EDGAR
  10. Apr 15, 202610-K ANNUAL REPORT EDGAR
  11. Mar 31, 2026NT 10-K NOTIFICATION OF LATE FILING EDGAR
  12. Feb 20, 20268-K CURRENT REPORT EDGAR
  13. Feb 11, 20268-K CURRENT REPORT EDGAR
  14. Feb 9, 2026SCHEDULE 13G EDGAR
  15. Feb 3, 20268-K CURRENT REPORT EDGAR
  16. Jan 23, 20268-K CURRENT REPORT EDGAR
  17. Jan 6, 20268-K CURRENT REPORT EDGAR
  18. Dec 15, 20258-K CURRENT REPORT EDGAR
  19. Dec 9, 20258-K CURRENT REPORT EDGAR
  20. Dec 2, 2025EFFECT EDGAR

The 253 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Insider trades

5 open-market trades by officers, directors and large owners since October 2021: 5 buys and 0 sales. Grants, option exercises and gifts are left out.

DateWhoTradeSharesPriceValueFiling
Jul 31, 2025Suk Jin Wook (Miles)CEO and ChairmanBuy72,035$0.28$20.2KForm 4
May 19, 2025Suk Jin Wook (Miles)CEO and ChairmanBuy16,200$0.26$4.2KForm 4
Apr 29, 2025Suk Jin Wook (Miles)CEO and ChairmanBuy4,325$0.25$1.1KForm 4
Apr 24, 2025Suk Jin Wook (Miles)CEO and ChairmanBuy26,542$0.34$9.0KForm 4
Apr 23, 2025Suk Jin Wook (Miles)CEO and ChairmanBuy7,460$0.28$2.1KForm 4

From Forms 4 filed with the SEC.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

Executive pay

What the company paid its top executives, from the summary compensation table in its proxy statement. Total pay includes salary, bonus, stock and option awards and other pay, as the company valued them.

YearExecutiveAgeSalaryTotal pay
2024Ian Chan52$521.8K43
2024Robert Markelewicz44$483.6K43
2024Christian Zapf$258.4K43
2024Miles Suk$543
2023Former ChiefExecutive Officer$502.9K$772.9K43
2023Chief Medical Officer$466.1K$546.1K43
2023Former Senior VicePresident of Corporate Development and Former General Counsel of Abpro Corporation$338.3K43

SEC filer profile

How Abpro Holdings, Inc. is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

  • Name on EDGARAbpro Holdings, Inc.1
  • CIK0001893219
  • Employer ID (EIN)87-10139564
  • Filer statusNon-accelerated filer an emerging growth company; a smaller reporting company; not a shell company4
  • Incorporated inDelaware4
  • Fiscal year endsDecember 311
  • Industry code (SIC)2836 Biological Products, (No Diagnostic Substances)1
  • SEC reviewing officeOffice of Life Sciences, Division of Corporation Finance1
  • Business address6 St Johns Lane, Floor 5, New York, NY 100131
  • Phone248-890-72001
  • Shares outstanding5,896,048 as of Aug 14, 20269
  • Public float$9.3M as of Jun 30, 20254
  • AuditorWolf & Company, P.C., Boston, MA PCAOB ID 392; no auditor attestation of internal control over financial reporting4
  • On EDGAR sinceDec 2, 20211
  • Filings253 in all: 8-K (69), 4 (19), 425 (17), 3 (16), 10-Q (14), CORRESP (14), DEFA14A (11), UPLOAD (11)1
    All 37 form types

    NT 10-Q (8), 424B3 (7), DEF 14A (6), EFFECT (6), 10-K (5), PRE 14A (5), S-1/A (5), S-4/A (5), S-1 (4), SC 13G (4), SC 13G/A (4), NT 10-K (3), 10-K/A (2), 25-NSE (2), SEC STAFF LETTER (2), 4/A (1), 424B4 (1), 8-A12B (1), 8-K/A (1), ARS (1), CERT (1), POS AM (1), POS EX (1), S-1MEF (1), S-4 (1), S-8 (1), SC 13D (1), SCHEDULE 13G (1), SCHEDULE 13G/A (1)

  • Latest filingsAnnual report (10-K) Apr 15, 2026
    Quarterly report (10-Q) Aug 14, 2026
    Proxy statement (DEF 14A) Sep 8, 2025
    Latest 8-K (8-K) Sep 1, 2026

Securities registered for trading

ClassSymbolExchange
Common Stock, $0.0001 par value per shareABPONasdaq
Warrants to purchase Common StockABPWWNasdaq

From the cover page of the 10-K filed Apr 15, 2026 (Section 12(b) of the Exchange Act).4

Risk factors and legal proceedings

The risks Abpro Holdings, Inc. names in Item 1A of its 10-K filed Apr 15, 2026: 75 risks under these headings, as written.4

  • Risks Related to Our Business and Industry
  • Our management has concluded that uncertainties around our ability to raise additional capital, combined with our cash on hand, raises substantial doubt about our ability to continue as a going concern. We will require additional financing to fund our future operations. Any failure to obtain additional capital when needed on acceptable terms, or at all, could force us to delay, limit, reduce or terminate our operations.
  • Drug development is a highly uncertain undertaking and involves a substantial degree of risk. We are a pre-clinical stage biopharmaceutical company with a history of losses. We expect to continue to incur significant losses for the foreseeable future and we may never achieve or maintain profitability, which could result in a decline in the market value of our Common Stock.
  • Our product candidates are in early stages of development and have never been tested in a human subject. Our product candidates may fail in development or suffer delays that materially and adversely affect their commercial viability.
  • Our approach to the discovery and development of our antibodies using our DiversImmune® and MultiMabTM may not result in a marketable therapeutic antibody product.
  • Our next-generation bispecific antibodies may not demonstrate the therapeutic effects of, or benefits at least comparable to, monospecific antibodies that we anticipate once tested in humans.
  • The market may not be receptive to our product candidates based on our novel therapeutic modality, and we may not generate any revenue from the sale or licensing of product candidates.
  • We will need substantial additional funds to advance development of our product candidates, and we cannot guarantee that we will have sufficient funds available in the future to develop and commercialize our current or future product candidates.
  • We may expend our limited resources to pursue a particular product candidate and fail to capitalize on product candidates that may be more profitable or for which there is a greater likelihood of success.
  • Through our AbMed subsidiary, we have in-licensed certain intellectual property rights relating to ABP-201 from MedImmune Limited, or MedImmune (now AstraZeneca), and are in breach of the terms of our license agreement with MedImmune/AstraZeneca.
  • We have entered, and may in the future seek to enter, into collaborations with third parties for the development and commercialization of our product candidates. If such collaborations are not successful, we may not be able to capitalize on the market potential of our product candidates.
  • If our partners cease development efforts under our existing or future collaborations, or if any of those agreements is terminated, these collaborations may fail to lead to commercial products, and we may never receive milestone payments or future royalties under these agreements.
The other 64 risks
  • We may not successfully engage in strategic transactions, including any additional collaborations we seek, which could adversely affect our ability to develop and commercialize product candidates, impact our cash position, increase our expenses, and present significant distractions to our management.
  • We may acquire assets or form strategic alliances in the future, and we may not realize the benefits of such acquisitions.
  • If third parties on which we intend to rely on to conduct certain pre-clinical studies, or any future clinical trials, do not perform as contractually required, fail to satisfy regulatory or legal requirements or miss expected deadlines, our development program could be delayed with material and adverse effects on our business, financial condition, results of operations and prospects.
  • Because we may rely on third-party manufacturing and supply partners for pre-clinical and clinical development materials, our supply may become limited or interrupted or may not be of satisfactory quantity or quality.
  • Our third-party manufacturers may be unable to successfully scale manufacturing of our product candidates in sufficient quality and quantity, which would delay or prevent us from developing our product candidates and commercializing approved products, if any.
  • If the market opportunities for our product candidates are smaller than we believe they are, our future product revenues may be adversely affected and our business may suffer.
  • We face competition from entities that have developed or may develop product candidates for the treatment of the diseases that we are initially targeting, including companies developing novel treatments and technology platforms. If these companies develop technologies or product candidates more rapidly than we do or their technologies are more effective, our ability to develop and successfully commercialize product candidates may be adversely affected.
  • Any inability to attract and retain qualified key management, technical personnel and employees would impair our ability to implement our business plan.
  • We may experience difficulties in managing our growth and expanding our operations.
  • If any of our product candidates is approved for marketing and commercialization and we are unable to develop sales, marketing and distribution capabilities on our own or enter into agreements with third parties to perform these functions on acceptable terms, we will be unable to commercialize successfully any such future products.
  • Our future growth may depend, in part, on our ability to operate in foreign markets, where we would be subject to additional regulatory burdens and other risks and uncertainties.
  • Price controls imposed in foreign markets may adversely affect our future profitability.
  • If any of our product candidates receives marketing approval and we or others later identify undesirable side effects caused by the product candidate, our ability to market and derive revenue from the product candidates could be compromised.
  • Litigation and legal proceedings may substantially increase our costs and harm our business.
  • Our business entails a significant risk of product liability and our ability to obtain sufficient insurance coverage could have a material and adverse effect on our business, financial condition, results of operations and prospects.
  • Our employees, principal investigators, consultants and commercial partners, may engage in misconduct or other improper activities, including noncompliance with regulatory standards and requirements.
  • Our internal computer systems, or those of CROs or other contractors or consultants we currently use or may use in the future, may fail or suffer security breaches, which could result in a material disruption of our product development programs.
  • Our information technology systems could face serious disruptions that could adversely affect our business.
  • If we do not comply with laws regulating the protection of the environment and health and human safety, our business could be adversely affected.
  • We or the third parties upon whom we depend may be adversely affected by natural disasters and we may not be adequately protected from a serious disaster.
  • Risks Related to our Intellectual Property
  • If we are unable to obtain or protect intellectual property rights related to our technology and current or future product candidates, or if our intellectual property rights are inadequate, we may not be able to compete effectively.
  • If we fail to comply with our obligations under any license, collaboration or other intellectual property related agreements, we may be required to pay damages and could lose intellectual property rights that are necessary for developing, commercializing and protecting our current or future technologies or product candidates or we could lose certain rights to grant sublicenses.
  • Patent terms may be inadequate to protect our competitive position on our current or future technologies or product candidates for an adequate amount of time.
  • Changes in U.S. patent law or the patent law of other countries or jurisdictions could diminish the value of patents in general, thereby impairing our ability to protect our current or any future technologies or product candidates.
  • Other companies or organizations may challenge our or our licensors’ patent rights or may assert patent rights that prevent us from developing and commercializing our current or future products.
  • We may not be able to protect our intellectual property rights throughout the world, which could negatively impact our business.
  • Third parties may initiate legal proceedings alleging that we are infringing, misappropriating or violating their intellectual property rights, the outcome of which would be uncertain and could have a material adverse impact on the success of our business.
  • Intellectual property rights of third parties could adversely affect our ability to commercialize our current or future technologies or product candidates, and we might be required to litigate or obtain licenses from third parties in order to develop or market our current or future technologies or product candidates, which may not be available on commercially reasonable terms or at all.
  • If we are unable to protect the confidentiality of our trade secrets, our business and competitive position would be harmed.
  • We may be subject to claims that we or our employees or consultants have wrongfully used or disclosed alleged trade secrets or other proprietary information of our employees’ or consultants’ former employers or their clients.
  • Obtaining and maintaining our patent protection depends on compliance with various procedural, document submission, fee payment and other requirements imposed by government patent agencies, and our patent protection could be reduced or eliminated for non-compliance with these requirements.
  • If our trademarks and trade names are not adequately protected, then we may not be able to build name recognition in our markets of interest, and our business may be adversely affected.
  • Intellectual property rights do not necessarily address all potential threats to our business.
  • Risks Related to Government Regulation
  • Clinical development involves a lengthy and expensive process with an uncertain outcome, and results of earlier studies and trials may not be predictive of future trial results.
  • We may be unable to obtain U.S. or foreign regulatory approval and, as a result, be unable to commercialize our product candidates, resulting in substantial harm to our business.
  • We may in the future conduct clinical trials for current or future product candidates outside the United States, and the FDA and comparable foreign regulatory authorities may not accept data from such trials.
  • Even if we receive regulatory approval for any of our product candidates, we will be subject to ongoing regulatory obligations and continued regulatory review, which may result in significant additional expense. Additionally, our product candidates, if approved, could be subject to labeling and other restrictions and market withdrawal and we may be subject to penalties if we fail to comply with regulatory requirements or experience unanticipated problems with our products.
  • We may fail to obtain and maintain orphan drug designation from the FDA for our current and future product candidates, as applicable.
  • Healthcare legislative reform measures may have a material adverse effect on our business and results of operations.
  • If we or existing or future partners, manufacturers or service providers fail to comply with healthcare laws and regulations, we or they could be subject to enforcement actions, which could affect our ability to develop, market and sell our products and may harm our reputation.
  • If we fail to comply with U.S. and foreign regulatory requirements, regulatory authorities could limit or withdraw any marketing or commercialization approvals we may receive and subject us to other penalties that could materially harm our business.
  • Even if we are able to commercialize any product candidate, such product candidate may become subject to unfavorable pricing regulations or third-party coverage and reimbursement policies, which would harm our business.
  • We are subject to U.S. and foreign anti-corruption and anti-money laundering laws with respect to our operations and non-compliance with such laws can subject us to criminal and/or civil liability and harm our business.
  • Comprehensive tax reform bills could adversely affect our business and financial condition.
  • Our ability to utilize our net operating loss carryforwards and certain other tax attributes may be limited.
  • Risks Related to Our Organization and Structure
  • Our Charter and the Bylaws provide that the Court of Chancery of the State of Delaware is the sole and exclusive forum for substantially all disputes between us and our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers, or employees.
  • Anti-takeover provisions in our governing documents and under Delaware law could make an acquisition of us more difficult, limit attempts by our stockholders to replace or remove our current management and limit the market price of our Common Stock.
  • Our management has limited experience in operating a U.S.-listed public company.
  • We will incur significant increased expenses and administrative burdens as a public company, which could have an adverse effect on its business, financial condition and results of operations.
  • In the prior years, we have identified material weakness in our internal control over financial reporting, which could affect our ability to ensure timely and reliable financial reports and weaken investor confidence in our financial reporting.
  • Our disclosure controls and procedures may not prevent or detect all errors or acts of fraud.
  • Changes in accounting rules and regulations, or interpretations thereof, could result in unfavorable accounting charges or require us to change our compensation policies.
  • We will need to improve our operational and financial systems to support our expected growth, increasingly complex business arrangements, and rules governing revenue and expense recognition and any inability to do so will adversely affect our billing and reporting.
  • We are an “emerging growth company,” and our reduced SEC reporting requirements may make our shares less attractive to investors.
  • Risks Related to this Offering and Ownership of Our Common Stock
  • Holders of our warrants will have no rights as a common stockholder until they acquire our common stock.
  • Our failure to meet Nasdaq’s continued listing requirements could result in a delisting of our shares.
  • Our Reverse Stock Split may decrease the liquidity of the shares of our Common Stock.
  • Following a reverse stock split, the resulting market price of our Common Stock may not attract new investors, including institutional investors, and may not satisfy the investing requirements of those investors. Consequently, the trading liquidity of our Common Stock may not improve.
  • The market price of our Common Stock may decline.
  • If securities or industry analysts do not publish research or reports about our business or publish negative reports about our business, our share price and trading volume could decline.
  • Our Common Stock price may decline and you could lose all or part of your investment as a result.
  • Because there are no current plans to pay cash dividends on our Common Stock for the foreseeable future, you may not receive any return on investment unless you sell your Common Stock at a price greater than what you paid for it.
  • Our shareholders may experience dilution in the future.
  • Future sales, or the perception of future sales, by us or our shareholders in the public market could cause the market price for our Common Stock to decline.

Legal proceedings

From time to time we may become involved in legal proceedings or be subject to claims arising in the ordinary course of our business. The following is a summary of material legal proceedings as of the date of this filing. See also Note 10 to our consolidated financial statements for additional information regarding contingent liabilities.

On June 17, 2025, a former director filed a lawsuit against the Company alleging damages of approximately $748,000 for consulting fees, bonuses, and for unpaid promissory note principal and interest, of which approximately $140,000 was paid in the fourth quarter of 2025. On November 10, 2025, the Suffolk Superior Court issued a preliminary injunction prohibiting the Company from transferring its assets without court approval outside the ordinary course of business. On April 15, 2026, the Company settled this claim in full for the total amount of approximately $390,000 pending payment of the settlement amount.

The opening of Item 3, Legal Proceedings.4

Sources

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