Filed by Horizon Quantum Holdings Pte. Ltd.
Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed
pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended
Subject Company: dMY Squared Technology Group, Inc.
Commission File No.: 333-292737
On March 9, 2026, the following press release
was issued by Horizon Quantum Computing Ltd. (“Horizon Quantum”).
Horizon Quantum Announces Expected New Board
Members and Chief Legal Officer
SINGAPORE, March 9, 2026 – Horizon
Quantum Holdings Ltd. (“Horizon Quantum”), which will become the holding company of Horizon Quantum Computing Pte. Ltd., a
pioneer of software infrastructure for quantum applications, today announced expected new members of its board of directors and a key
addition to its leadership team.
Following the completion of Horizon Quantum’s
merger (the “Business Combination”) with dMY Squared Technology Group, Inc. (“dMY”), the company expects to make
the following appointments to its board of directors: Danielle Lambert, formerly of Apple Inc. (“Apple”), Peter Oey of Grab
Holdings Ltd. (“Grab”), Jill Turner of Broadcom Inc. (“Broadcom”), and Harry You, Chairman of dMY. Finally, in
May of this year, Horizon Quantum will also fill out its leadership team, adding Catherine Fitzsimons,
currently of Fidelity International Ltd. (“Fidelity”), as the company’s Chief Legal and Compliance Officer, EVP of Strategic
Initiatives and Company Secretary.
“Horizon Quantum is entering a crucial next
phase of growth as we prepare to go public via a definitive business combination agreement with dMY,” said Horizon Quantum Founder
& CEO Dr Joe Fitzsimons. “Bringing world-class appointments to our board and leadership team strengthens the company and enhances
our ability to achieve our mission of unlocking the full potential of quantum computers.”
Each director nominee Horizon Quantum intends to appoint to its board
of directors will bring a range of experiences and perspectives to the company. For more on each director nominee, please see below.
| ● | Danielle Lambert was the VP of Human Resources at Apple, where she helped build out teams behind
the iPod, iPhone, iPad and Apple Retail Stores, among others. She later played a pivotal role in the founding of Nest Labs Inc., as an
investor and advisor through the company’s rapid growth and acquisition by Alphabet Inc. |
| ● | Peter Oey is the Chief Financial Officer of Grab, a prominent Southeast Asia superapp. He previously
served as CFO of LegalZoom.com Inc. prior to its IPO and as CFO of MyLife.com Inc. Earlier in his career he held several finance leadership
roles at Activision Blizzard Inc. |
| ● | Jill Turner has more than 20 years of experience in global human resources leadership roles at
Fortune 500 technology companies. She is currently the Chief Human Resources Officer of Broadcom and previously held executive positions
at Honeywell International Inc. and Lumen Technologies Inc. (formerly CenturyLink Inc.). |
| ● | Harry You is currently Chairman of dMY Squared Technology Group, Inc. and a member of Broadcom’s
board of directors. Previously, he was lead independent director of IonQ Inc., a leading quantum computing hardware company. He is also
an experienced public company officer, having held CFO roles at Accenture plc and Oracle Corporation, and an EVP role at EMC Corporation,
among others. |
Separately, Catherine Fitzsimons will also
join the company in May as the Chief Legal and Compliance Officer, EVP of Strategic Initiatives and Company Secretary. At Fidelity, she
is currently the Director of Strategic Initiatives and previously served as Fidelity’s Head of Global Product Legal.
“Based on my prior experience with many public
companies, I believe Catherine will be an outstanding addition to the team with her strong legal experience, particularly at Fidelity
International,” said Harry You, Chairman of dMY. “I have full confidence that she will be an excellent steward for the Company
and all of its stakeholders, especially its new public shareholders.”
Ms. Fitzsimons commented, “The momentum
across the quantum industry, together with Horizon Quantum’s next stage of growth, makes this a particularly exciting time to join
the Company. It presents a compelling opportunity to support the business through a period of transformation. In my new role, I look forward
to ensuring we are well positioned to deliver on our growth ambitions with discipline, vision, and purpose.”
About Horizon Quantum
Horizon Quantum’s mission is to unlock broad
quantum advantage by building software infrastructure that empowers developers to use quantum computing to solve the world’s toughest
computational problems.
Founded in 2018 by Dr Joe Fitzsimons, a leading
researcher and former professor with more than two decades of experience in quantum computing, the company seeks to bridge the gap between
today’s quantum hardware and tomorrow’s applications through the creation of advanced software development tools. Its integrated
development environment, Triple Alpha, enables developers to write sophisticated, hardware-agnostic quantum programs at multiple levels
of abstraction. Learn more at www.horizonquantum.com.
Additional Information about the Business
Combination and Where to Find It
In connection with Horizon Quantum’s previously
announced Business Combination, Horizon Quantum and Horizon Quantum Computing Pte. Ltd. (“Horizon”) filed a registration statement
on Form F-4 relating to the Business Combination and certain other matters (the “Registration Statement”), which includes
a preliminary proxy statement of dMY and a preliminary prospectus of Horizon Quantum with respect to the securities to be offered in the
Business Combination. The Registration Statement became effective on February 17, 2026. The same day, dMY filed and mailed a definitive
proxy statement/prospectus (the “Proxy Statement”) to its shareholders as of the record date established for voting on the
Business Combination. The Proxy Statement contains important information about the Business Combination and the other matters to be voted
upon at a special meeting of shareholders of dMY (the “Special Meeting”). This press release does not contain all the information
that should be considered concerning the Business Combination and other matters and is not intended to provide the basis for any investment
decision or any other decision in respect of such matters. dMY, Horizon Quantum and Horizon may also file other documents with the Securities
and Exchange Commission (the “SEC”) regarding the Business Combination. dMY’s shareholders and other interested persons
are advised to read the definitive proxy statement/prospectus and other documents filed in connection with the Business Combination, as
these materials contain important information about dMY, Horizon Quantum, Horizon, and the Business Combination. The documents filed by
dMY, Horizon Quantum and Horizon with the SEC also may be obtained free of charge upon written request to dMY at dMY Squared Technology
Group, Inc., 1180 North Town Center Drive, Suite 100, Las Vegas, Nevada 89144.
Participants in the Solicitation
Horizon Quantum, Horizon and dMY and their respective
directors, executive officers and other members of their management and employees, under SEC rules, may be deemed to be participants in
the solicitation of proxies of dMY’s shareholders in connection with the Business Combination. Investors and security holders may
obtain more detailed information regarding the names, affiliations and interests of dMY’s directors and officers in dMY’s
Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed with the SEC on April 3, 2025 (the “dMY Annual Report”)
or its subsequent quarterly reports. Information regarding the persons who may, under SEC rules, be deemed participants in the solicitation
of proxies to dMY’s shareholders in connection with the Business Combination is set forth in the Proxy Statement for the Business
Combination. Information concerning the interests of Horizon Quantum’s, Horizon’s and dMY’s participants in the solicitation,
which may, in some cases, be different than those of their respective equityholders generally, is set forth in the Proxy Statement relating
to the Business Combination.
Disclaimer
Past performance by Horizon’s or dMY’s
management teams and their respective affiliates is not a guarantee of future performance. Therefore, you should not place undue reliance
on the historical record of the performance of Horizon’s or dMY’s management teams or businesses associated with them as indicative
of future performance of an investment or the returns that Horizon Quantum, Horizon or dMY will, or are likely to, generate going forward.
Cautionary Note Regarding Forward-Looking
Statements
This press release includes “forward-looking
statements” with respect to dMY, Horizon Quantum and Horizon. The expectations, estimates, and projections of the businesses of
Horizon Quantum, Horizon and dMY may differ from their actual results and consequently, you should not rely on these forward-looking statements
as predictions of future events. Words such as “expect,” “estimate,” “anticipate,” “intend,”
“may,” “will,” “could,” “should,” “potential,” “plan” and similar
expressions are intended to identify such forward-looking statements.
These forward-looking statements include, without
limitation, expectations related to the closing of the Business Combination and the addition of Harry You, Danielle Lambert, Jill Turner
and Peter Oey (together, the “Proposed Directors”) to join as directors and for Catherine Fitzsimons to join as the company’s
Chief Legal and Compliance Officer, EVP of Strategic Initiatives and Company Secretary. These forward-looking statements involve significant
risks and uncertainties that could cause the actual results to differ materially from the expected results and are subject to, without
limitation, (i) known and unknown risks, including the risks and uncertainties indicated from time to time in the dMY Annual Report, dMY’s
other filings with the SEC, and the Registration Statement and Proxy Statement, including those under “Risk Factors” therein,
and other documents filed or to be filed with the SEC by dMY, Horizon Quantum or Horizon; (ii) uncertainties; (iii) assumptions; and (iv)
other factors beyond dMY’s, Horizon Quantum’s, or Horizon’s control that are difficult to predict because they relate
to events and depend on circumstances that will occur in the future. They are neither statements of historical fact nor promises or guarantees
of future performance. Therefore, actual results may differ materially and adversely from those expressed or implied in any forward-looking
statements and dMY, Horizon Quantum and Horizon therefore caution against placing undue reliance on any of these forward-looking statements.
Many of these factors are outside of the control
of dMY, Horizon Quantum and Horizon and are difficult to predict. Factors that may cause such differences include, but are not limited
to: (1) the occurrence of any event, change or other circumstances that could give rise to the termination of the business combination
agreement, dated as of September 9, 2025, by and among dMY, Horizon and Horizon Quantum the other related parties thereto (the “Business
Combination Agreement”); (2) the ability to successfully or timely consummate the private placement of an aggregate of approximately
$111.9 million of Horizon Quantum’s Class A ordinary shares with certain institutional and accredited investors, qualified institutional
buyers and strategic investors (the “PIPE Transaction”); (3) the outcome of any legal proceedings that may be instituted against
the parties following the announcement of the Business Combination and the Business Combination Agreement; (4) the inability to complete
the Business Combination, including due to the failure to obtain approval of the shareholders of Horizon and dMY or other conditions to
closing the Business Combination; (5) changes to the structure of the Business Combination that may be required or appropriate as a result
of applicable laws or regulations or as a condition to obtaining regulatory approval of the Business Combination; (6) Horizon Quantum’s
ability to scale and grow its business, including through the use of proceeds of the PIPE Transaction, and the advantages and expected
growth of Horizon Quantum; (7) the cash position of Horizon Quantum following the closing of the Business Combination; (8) the inability
to obtain or maintain the listing of Horizon Quantum’s securities on the New York Stock Exchange, the NYSE American, or Nasdaq following
the Business Combination; (9) the risk that the announcement and pendency of the Business Combination disrupts Horizon’s current
plans and operations; (10) the ability to recognize the anticipated benefits of the Business Combination and PIPE Transaction, which may
be affected by, among other things, competition, the ability of Horizon Quantum to grow and manage growth profitably and source and retain
its key employees; (11) costs related to the Business Combination; (12) changes in applicablew laws and regulations or political and economic
developments; (13) the possibility that Horizon Quantum may be adversely affected by other economic, business and/or competitive factors;
(14) Horizon Quantum’s estimates of expenses and profitability; (15) the amount of redemptions by dMY public shareholders; (16)
difficulties operating Horizon Quantum’s quantum processor and the possibility that the quantum processor does not provide the advantages
that Horizon Quantum expects; (17) the ability to successfully or timely consummate the PIPE Transaction; (18) the ability of Horizon
Quantum to integrate access to its quantum computing test bed within its Triple Alpha platform; (19) the ability of our coding languages
to provide additional abstraction when compared to other quantum computing solutions; (20) the entry into the side letter, dated December
4, 2025, among Horizon Quantum, Horizon, dMY, and IonQ, Inc. (the “Side Letter”), and our ability to recognize the benefits
of the Side Letter; and (21) other risks and uncertainties included in the “Risk Factors” sections of the dMY Annual Report,
dMY’s other filings with the SEC, and the Registration Statement and other documents filed or to be filed with the SEC by Horizon
Quantum, Horizon and dMY. The foregoing list of factors is not exclusive. You should not place undue reliance upon any forward-looking
statements, which speak only as of the date made. Horizon Quantum, Horizon and dMY do not undertake or accept any obligation or undertaking
to release publicly any updates or revisions to any forward-looking statements to reflect any change in their expectations or any change
in events, conditions, or circumstances on which any such statement is based, except as required by law.
No Offer or Solicitation
This press release does not constitute a solicitation
of a proxy, consent, or authorization with respect to any securities or in respect of the Business Combination. This press release also
does not constitute an offer to sell or the solicitation of an offer to buy any securities, nor will there be any sale of securities in
any states or jurisdictions in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under
the securities laws of any such jurisdiction. No offering of securities will be made except by means of a prospectus meeting the requirements
of Section 10 of the Securities Act of 1933, as amended.
Investor contact
Katherine Bailon
investors@horizonquantum.com
Media contact
Yanina Blaclard
media@horizonquantum.com
