Filed by ACP
Holdings Acquisition Corp.
Pursuant to Rule
425 under the Securities Act of 1933,
as amended,
and deemed filed under Rule 14a-12
under the Securities Exchange Act of 1934, as amended
Subject Company: ACP Holdings Acquisition
Corp.
Commission File No.: 001-43225
The following Investor
Day press release was made widely available via Global Newswire on November 9, 2026 in connection with the proposed business combination
between ACP Holdings Acquisition Corp. and May Mobility, Inc.
May Mobility to Host Investor
Day on November 12 as Company Advances Toward Nasdaq Listing
| ● | May
Mobility to host Investor Day on Thursday, November 12, 2026 |
| ● | Event to provide a comprehensive overview of May Mobility’s technology and business |
| ● | Event
is part of May Mobility’s process toward a Nasdaq listing following the announcement
on September 16, 2026 of the proposed business combination with ACP Holdings Acquisition
Corp. |
| ● | Please
register using the following link: Register Here |
ANN ARBOR,
MI, November 9, 2026 — May Mobility, Inc. (“May Mobility”), a global
autonomous vehicle (AV) technology company, will host an Investor Day for analysts and investors on Thursday, November 12, 2026. The
event is part of May Mobility’s ongoing process toward a Nasdaq listing, supported by the fully committed $120 million PIPE announced
in connection with May Mobility’s proposed business combination with ACP Holdings Acquisition Corp. (Nasdaq: ACGC) (“ACP
Holdings”), a publicly traded special purpose acquisition company.
The
event will provide a comprehensive overview of May Mobility’s technology and business. Participants are welcome to register to
join us virtually linked HERE or on our website at https://maymobility.com/posts/may-mobility-to-host-investor-day-on-november-12-as-company-advances-toward-nasdaq-listing/.
Speakers
| ● | Ed Olson – Chief Executive Officer |
| ● | Tom Fennimore – Chief Financial Officer |
| ● | Sid Venkatesan – Chief Strategy Officer & General
Counsel |
| ● | Manik Dhar – Chief Commercial Officer |
| ● | Jacob Crossman – Senior Vice President of Autonomy |
| ● | Balajee Kannan – Senior Vice President of Autonomy
Core Engineering |
Event Details
| ● | Date: Thursday, November 12, 2026 |
| ● | Time: 3:00 PM – 4:30 PM ET |
| ● | Registration: HERE or on our website at https://maymobility.com/posts/may-mobility-to-host-investor-day-on-november-12-as-company-advances-toward-nasdaq-listing/. |
Upcoming Conference Attendance
| ● | Barclays Global Automotive and Mobility Tech Conference |
November 19, 2026, New York, NY |
| ● | UBS Global Technology and AI Conference | Scottsdale, AZ,
November 30, 2026 |
| ● | Raymond James TMT Conference | December 7, 2026, New York,
NY |
| ● | Bernstein Industrials & Energy Conference | December
9, 2026, New York, NY |

About May Mobility
May Mobility develops
autonomous vehicle technology for commercial ride-hail services. Its patented physical AI system runs entirely on-vehicle, integrating
deep learning, a dynamic world model and a real-time reasoning engine to navigate through new and complex situations on the road. In
partnership with Toyota Motor Corporation, NTT, Lyft, Uber and Grab, May Mobility delivers Autonomy-as-a-Service (AaaS) at commercial
scale and has completed more than half a million commercial autonomous rides across deployments in the U.S. and Japan. For more information,
visit maymobility.com.
Investor Contact
May Mobility
Maymobility@icrinc.com
Media Contact
May Mobility
press@maymobility.com
Forward-Looking Statements
This press release includes “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act
of 1995, as amended. All statements contained in this press release that do not relate to matters of historical fact, including statements
about May Mobility’s and ACP Holdings’ beliefs, plans, and expectations, should be considered forward-looking. These forward-looking
statements generally are identified by words such as “anticipate,” “believe,” “continue,” “could,”
“estimate,” “expect,” “intend,” “may,” “might,” “plan,” “possible,”
“potential,” “predict,” “project,” “should,” “strive,” “would,”
“strategy,” “outlook,” the negative of these words or other similar expressions, but the absence of these words
does not mean that a statement is not forward-looking. These forward-looking statements include but are not limited to statements regarding
May Mobility’s future results of operations and financial condition, business strategy, AV technology, systems, research and development
costs, regulatory approvals, potential market opportunity, anticipated trends in May Mobility’s business, timing and likelihood
of success, as well as plans and objectives of management for future operations, the successful consummation and potential benefits of
the proposed transaction and expectations related to its terms and timing; and the potential for May Mobility to increase in value.
These forward-looking
statements are based on information available as of the date of this press release and current expectations, forecasts and assumptions,
and involve a number of judgments, risks and uncertainties. Accordingly, forward-looking statements should not be relied upon as representing
May Mobility’s or ACP Holdings’ views as of any subsequent date, and May Mobility and ACP Holdings do not undertake any obligation
to update forward-looking statements to reflect events or circumstances after the date they were made, whether as a result of new information,
future events, or otherwise, except as may be required under applicable securities laws.
These forward-looking
statements involve significant risks and uncertainties that could cause the actual results to differ materially from the expected results.
Most of these factors are outside ACP Holdings’ and May Mobility’s control and are difficult to predict. Factors that may
cause such differences include, but are not limited to: the risk that the benefits of the proposed business combination may not be realized;
the risk that the proposed business combination may not be completed in a timely manner or at all, which may adversely affect the price
of ACP Holdings’ securities; the amount of redemption requests made by ACP Holdings public shareholders and the failure to satisfy
the conditions to the consummation of the proposed business combination, including the failure of ACP Holdings’ shareholders to
approve and adopt the proposed business combination; risks related to the scaling of May Mobility’s business and the timing of
expected business milestones; the ability to meet stock exchange listing standards following the consummation of the proposed business
combination; the occurrence of any event, change or other circumstance that could give rise to the termination of the business combination
agreement; the outcome of any legal proceedings that may be initiated following announcement of the proposed business combination; the
combined company’s continued listing on Nasdaq; the risk that the proposed transaction disrupts current plans and operations of
May Mobility as a result of the announcement and consummation of the proposed business combination; the ability to recognize the anticipated
benefits of the transaction, which may be affected by, among other things, competition, the ability of the combined company to grow and
manage growth profitably, maintain relationships with customers and suppliers and retain its management and key employees; costs related
to the proposed business combination; risks associated with changes in applicable laws or regulations applicable to May Mobility’s
solutions and services and May Mobility’s international operations; the possibility that the combined company may be adversely
affected by other economic, geopolitical, business, and/or competitive factors; the ability of May Mobility or the combined company to
raise capital in the future; and other risks and uncertainties that will be detailed in the Proxy Statement/Prospectus (as defined below)
and as indicated from time to time in ACP Holdings’ filings with the SEC. These filings identify and address other important risks
and uncertainties that could cause actual events and results to differ materially from those contained in the forward-looking statements.
ACP Holdings and
May Mobility caution that the foregoing list of factors is not exclusive. ACP Holdings and May Mobility caution readers not to place
undue reliance upon any forward-looking statements, which speak only as of the date made. Forward-looking statements are not guarantees
of future performance. Neither May Mobility nor ACP Holdings gives any assurance that either May Mobility or ACP Holdings will achieve
its expectations. The inclusion of any statement in this press release does not constitute an admission by May Mobility or ACP Holdings
or any other person that the events or circumstances described in such statement are material.
Additional Information and Where to Find
It
In connection
with the proposed transaction between ACP Holdings and May Mobility, ACP Holdings and May Mobility intend to file with the SEC, as co-registrants,
a registration statement on Form S-4 (the “Registration Statement”), which will include a preliminary proxy statement of
ACP Holdings and a preliminary prospectus relating to the securities to be issued in connection with the proposed transaction (the “Proxy
Statement/Prospectus”). After the Registration Statement is declared effective, ACP Holdings plans to mail a definitive proxy statement/prospectus
to all ACP Holdings and May Mobility shareholders as of a record date to be established for voting on the proposed transaction. ACP Holdings
will also file other documents regarding the proposed transaction with the SEC. This press release is not a substitute for the Registration
Statement, the Proxy Statement/Prospectus or any other document that May Mobility or ACP Holdings may file with the SEC or send to ACP
Holdings’ shareholders in connection with the proposed transaction.
This press release
does not contain all of the information that should be considered concerning the proposed transaction and is not intended to form the
basis of any investment decision or any other decision in respect of the transaction. Before making any voting or investment decision,
investors and securityholders of ACP Holdings and May Mobility are urged to read the Registration Statement, the Proxy Statement/Prospectus
and all other relevant documents filed or to be filed with the SEC in connection with the proposed transaction carefully when they become
available because they will contain important information about May Mobility, ACP Holdings, the proposed transaction and related matters.
Investors and securityholders will be able to obtain free copies of the Registration Statement and the Proxy Statement/Prospectus and
all other relevant documents filed with the SEC by May Mobility and ACP Holdings through the website maintained by the SEC at www.sec.gov.
In addition, the documents filed by ACP Holdings may be obtained by written request to ACP Holdings at ACP Holdings Acquisition Corp.,
3131 Eastside Street, Houston, Texas 77098, and the documents filed by May Mobility may be obtained by written request to May Mobility
at 650 Avis Drive, Suite 100, Ann Arbor, Michigan 48108.
Participants in the Solicitation
ACP Holdings, May Mobility and certain of their respective directors, executive officers, and employees may be deemed to be participants
in the solicitation of proxies from ACP Holdings’ shareholders in connection with the proposed transaction. Information about ACP
Holdings’ directors and executive officers and their ownership of ACP Holdings’ securities is set forth in ACP Holdings’
filings with the SEC. A list of the names of May Mobility’s directors and executive officers and information regarding their interests
in the proposed transaction will be included in the Proxy Statement/Prospectus when it becomes available. Additional information regarding
the interests of those persons and other persons who may be deemed participants in the proposed transaction may be obtained by reading
the Proxy Statement/Prospectus regarding the proposed transaction when available. Investors and securityholders should read the Proxy
Statement/Prospectus carefully when it becomes available before making any voting or investment decisions. You may obtain free copies
of these documents as described above.
No Offer or Solicitation
This press release
shall not constitute a solicitation of any proxy, vote, consent or approval in any jurisdiction in connection with the proposed transaction
and shall not constitute an offer to sell or a solicitation of an offer to buy the securities of ACP Holdings, May Mobility or the combined
company resulting from the proposed transaction, nor shall there be any sale of any such securities in any state or jurisdiction in which
such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of such state or
jurisdiction. No offer of securities shall be made except by means of a prospectus meeting the requirements of the Securities Act of
1933, as amended. Distribution of this press release is restricted by law; it is not intended for distribution to, or use by any person
in, any jurisdiction in where such distribution or use would be contrary to local law or regulation.