Form 8-K

8-K — Translational Development Acquisition Corp.

Accession: 0001104659-26-076684

Filed: 2026-06-23

Period: 2026-06-22

CIK: 0001926599

SIC: 6770 (BLANK CHECKS)

Item: Other Events

Item: Financial Statements and Exhibits

Documents

8-K — tm2618552d1_8k.htm (Primary)

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UNITED STATES

SECURITIES AND

EXCHANGE COMMISSION

Washington, D.C.

20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or Section 15(d) of

the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):

June 22, 2026

TRANSLATIONAL DEVELOPMENT ACQUISITION CORP.

(Exact name of registrant as specified in its charter)

Cayman Islands

001-42451

N/A

(State or other jurisdiction of

incorporation or organization)

(Commission

File Number)

(IRS Employer

Identification No.)

52 E. 83rd Street,

New York, New York

10028

(Address of principal executive offices)

(Zip Code)

Registrant’s telephone number, including

area code: (917) 979-3072

Not Applicable

(Former name or former address, if changed since

last report.)

Check the appropriate box below if the Form 8-K

filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title

of each class

Trading

Symbol(s)

Name

of each exchange

on which registered

Units,

each consisting of one Class A ordinary share, $0.0001 par value, and one-half of one redeemable warrant

TDACU

The

Nasdaq Stock Market LLC

Class A

ordinary shares, $0.0001 par value per share

TDAC

The

Nasdaq Stock Market LLC

Redeemable warrants included as part of the units, each whole warrant exercisable for one Class A ordinary share at an exercise price of

$11.50

TDACW

The

Nasdaq Stock Market LLC

Indicate by check mark whether the registrant

is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2

of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging

growth company x

an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying

with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Item 8.01 Other Events.

On June 22, 2026, Translational Development Acquisition Corp. (the

“Company” or “TDAC”) issued a press release announcing certain results of shareholder redemptions in connection

with the shareholder vote held on June 17, 2026 regarding the extension of the deadline by which TDAC must consummate an initial business

combination and providing certain information regarding TDAC’s proposed business combination with ProLogium Holding Inc. A copy

of the press release is filed as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated by reference herein.

The information contained in this Current Report on Form 8-K, including

Exhibit 99.1, is being filed for purposes of Rule 425 under the Securities Act of 1933, as amended, and Rule 14a-12 under the Securities

Exchange Act of 1934, as amended.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

The following exhibits are being filed herewith:

Exhibit No.

Description of Exhibits

99.1

Press Release, dated June 22, 2026.

104

Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURE

Pursuant to the requirements of the Securities

Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: June 23, 2026

TRANSLATIONAL DEVELOPMENT ACQUISITION CORP.

By:

/s/ Michael B. Hoffman

Name:

Michael B. Hoffman

Title:

Chief Executive Officer

EX-99.1 — EXHIBIT 99.1

EX-99.1

Filename: tm2618552d1_ex99-1.htm · Sequence: 2

Exhibit 99.1

TDAC Announces Very Successful Share Redemption Results in Connection

with Extension Vote

· 85% of Shares are not Redeemed, resulting in TDAC maintaining $156.8mm in trust

· 95% of the Shares Voted Were In Favor of the Extension

· These Great Results Follow the Momentum of the May 27, 2026 announcement of TDAC’s Entry into a Merger Agreement with Prologium

· Prologium is a global leader in next generation lithium ceramic battery technology, moving into growth markets, including AI Data

Centers, aerospace, robotics, defense and electric vehicles

NEW YORK, NY – June 22,2026 – Translational

Development Acquisition Company (NYSE: TDAC) (the “Company” or “TDAC”) announced the very successful results of

the shareholder vote held on 6/17/26 regarding the proposed extension of the SPAC life and election of shareholders to redeem their shares

or continue to participate in TDAC.

In connection with the meeting, holders of the Company’s Class

A common stock were given the opportunity to redeem their shares for a pro-rata portion of the Company’s trust account. Based on

the final tabulation, public shareholders elected to redeem 2,598,697 shares of Class A common stock, meaning that holders of 14,651,303

shares of redeemable Class A common stock elected to continue to hold their shares.

Following these redemptions, approximately $156.8mm remains in the

Company’s trust account.

Michael Hoffman, Chairman and CEO of TDAC, commented, “The

strong interest shown of 85% of TDAC’s shareholders of not redeeming their shares illustrates the excitement we all have around

the announced deal with ProLogium. The company is the global leader in next-generation lithium ceramic battery technology , with a gigascale

plant in Taiwan and a gigawatt plant in France under construction with an announced total potential subsidy package of up to €1.375

billion from the French Government. Their battery products are being developed for use in a broad range of target markets, including

electric vehicles, aerospace, robotics, energy storage systems (including battery backup units for AI data centers), maritime, and other

applications that require high energy density, fast charging capabilities, enhanced safety, and manufacturability and this transaction

will help propel them forward. We see the enthusiasm for our shareholders in staying in this transaction as indicative of the overall

enthusiasm for ProLogium that we’ve seen in our preliminary discussions with investors since the deal was announced.”

Forward-Looking Statements

This communication contains forward-looking statements within the meaning

of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Exchange Act of 1934, as amended that are based

on beliefs and assumptions and on information currently available to ProLogium and TDAC. In some cases, you can identify forward-looking

statements by the following words: “may,” “will,” “could,” “would,” “should,”

“expect,” “intend,” “plan,” “anticipate,” “believe,” “estimate,”

“predict,” “project,” “potential,” “continue,” “ongoing,” “target,”

“seek” or the negative or plural of these words, or other similar expressions that are predictions or indicate future events

or prospects, although not all forward-looking statements contain these words. Any statements that refer to expectations, projections

or other characterizations of future events or circumstances, including projections of market opportunity, number of customers and market

share, the capability of ProLogium’s technology, ProLogium’s business plans including its plans to expand globally, the sources

and uses of proceeds from the business combination, the anticipated enterprise value of the combined company following the consummation

of the business combination, any benefits of ProLogium’s partnerships, strategies or plans as they relate to the business combination,

anticipated benefits of the business combination and expectations related to the terms and timing of the business combination are also

forward-looking statements. These statements involve risks, uncertainties and other factors that may cause actual results, levels of activity,

performance or achievements to be materially different from those

expressed or implied by these forward-looking statements. These statements are based on ProLogium’s and TDAC’s reasonable

expectations and beliefs concerning future events and involve risks and uncertainties that may cause actual results to differ materially

from current expectations. These factors are difficult to predict accurately and may be beyond ProLogium’s and TDAC’s control.

Forward-looking statements in this communication or elsewhere speak only as of the date made. New uncertainties and risks arise from time

to time, and it is impossible for ProLogium or TDAC to predict these events or how they may affect ProLogium or TDAC. In addition, there

will be risks and uncertainties described in the proxy statement / prospectus relating to the business combination, which is expected

to be filed by ProLogium with the SEC and other documents filed by ProLogium or TDAC from time to time with the SEC. These filings may

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. Neither ProLogium nor TDAC can assure you that the forward-looking

statements in this communication will prove to be accurate. These forward-looking statements are subject to a number of risks and uncertainties,

including, among others, the occurrence of any event, change or other circumstance that could delay, impede or prevent the business combination

or give rise to the termination of the Business Combination Agreement; the outcome of any legal proceedings that may be instituted against

ProLogium or TDAC, the combined company or others following the announcement of the business combination; the inability to complete the

business combination due to the failure to obtain approval of the shareholders of ProLogium or TDAC or to satisfy other conditions to

closing (including the $250 million Minimum Cash condition); failure to obtain TDAC deadline extension; the amount of redemption

requests made by TDAC’s public shareholders; the ability to maintain the stock exchange listing standards following the consummation

of the business combination; the risk that the business combination disrupts current plans and operations of ProLogium or TDAC as a result

of the announcement and consummation of the business combination; the ability to execute on its business strategy and the ability to develop

and commercialize its solid-state battery technology; the ability to accurately estimate the future supply and demand for its batteries;

the ability to respond rapidly to emerging technology trends; the ability to compete effectively and the ability to manage growth; the

ability to recognize the anticipated benefits of the business combination; costs related to the business combination; changes in applicable

laws or regulations; international trade disputes, including threatened or implemented tariffs by the U.S. and threatened or implemented

tariffs by foreign countries in retaliation; the ability of ProLogium to execute its business model, including market acceptance of its

planned products and services; the combined company’s ability to raise capital; future financial performance of the combined company

following the business combination; the possibility that TDAC or the combined company may be adversely affected by other economic, business

and/or competitive factors; risks associated with ProLogium’s efforts to commercialize its products; ProLogium’s ability to

maintain its existing agreements with third parties and to negotiate and enter into new definitive agreements on favorable terms, if at

all; the impact of competing products on ProLogium’s business; intellectual property-related claims against ProLogium or the combined

company; ProLogium’s dependence upon its key personnel and ability to attract and retain such personnel and additional qualified

personnel; ProLogium’s ability to source raw materials for its products; and other risks and uncertainties to be set forth in the

section entitled “Risk Factors” in the registration statement on Form F-4 to be filed by ProLogium with the SEC

and those included under the heading “Risk Factors” in TDAC’s filings with the SEC. There may be additional risks that

neither ProLogium nor TDAC presently knows or that ProLogium and TDAC currently believe are immaterial that could also cause actual results

to differ from those contained in the forward-looking statements.

In light of the significant uncertainties in these forward-looking

statements, you should not regard these statements as a representation or warranty by ProLogium, TDAC, their respective directors, officers

or employees or any other person that ProLogium or TDAC will achieve their objectives and plans in any specified time frame, or at all.

The forward-looking statements in this communication represent the views of ProLogium and TDAC as of the date of this communication. Subsequent

events and developments may cause those views to change. Except as required by applicable law, neither ProLogium nor TDAC has any duty

to, and does not intend to, update or revise the forward-looking statements in this communication after the date of this communication.

You should, therefore, not rely on these forward-looking statements as representing the views of ProLogium or TDAC as of any date subsequent

to the date of this communication.

Contacts

info@translational-development.com

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