6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of November 2025

Commission File Number: 001-42637

Antalpha Platform Holding Company (Translation of registrant's name into English)

7 TEMASEK BOULEVARD, #31-02 SUNTEC TOWER 1,SINGAPORE038987 (Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F. Form 20-F [ X ]      Form 40-F [   ]

On November 24, 2025, the Registrant issued a press release, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

(c) Exhibit 99.1. Press release dated November 24, 2025

SIGNATURES

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, thereunto duly authorized.

EdgarFiling EXHIBIT 99.1

Antalpha Announces $10 Million Share Repurchase Program

SINGAPORE, Nov. 24, 2025 (GLOBE NEWSWIRE) -- Antalpha Platform Holding Company (NASDAQ: ANTA) ("Antalpha" or the "Company") today announced that its board of directors has authorized a share repurchase program of up to $10 million of the Company’s ordinary shares. The program will remain in effect through December 31, 2026.

“Antalpha has delivered strong operating momentum, with accelerating revenue growth, expanding margins, and growing institutional interest in our ability to leverage over-collateralization and other risk-management measures to provide clients with liquidity that helps them navigate crypto volatility. This performance gives us the financial flexibility to execute a share repurchase program that we believe will deliver more value to shareholders,” said Paul Liang, CFO of Antalpha. “Our anchor investment in Aurelion (NASDAQ: AURE), a Tether-Gold-RWA-focused company, will help Antalpha build greater balance sheet resilience and enable Antalpha Prime to expand its loan offerings, including XAU₮-backed loans that can help our clients better weather crypto market volatility.”

The Company’s proposed repurchases may be made from time to time on the open market at prevailing market prices, in privately negotiated transactions, in block trades and/or through other legally permissible means, depending on market conditions and in accordance with applicable rules and regulations. The Company is not obligated to repurchase any specific number of shares, and the Board will periodically review the program and may adjust its terms and size as appropriate.

About Antalpha Antalpha is a leading fintech company specializing in providing financing, technology, and risk management solutions to institutions in the digital asset industry. Antalpha offers Bitcoin supply chain and margin loans through the Antalpha Prime technology platform, which allows customers to originate and manage their digital assets loans, as well as monitor collateral positions with near real-time data.

Safe Harbor Statement This press release contains statements that may constitute “forward-looking” statements pursuant to the “safe harbor” provisions of the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements can be identified by terminology such as “will,” “expects,” “anticipates,” “aims,” “future,” “intends,” “plans,” “believes,” “estimates,” “likely to,” and similar statements. Statements that are not historical facts, including statements about Antalpha’s beliefs, plans, and expectations, are forward-looking statements. Forward-looking statements involve inherent risks and uncertainties. Further information regarding these and other risks is included in Antalpha’s filings with the SEC. All information provided in this press release is as of the date of this press release, and Antalpha does not undertake any obligation to update any forward-looking statement, except as required under applicable law.

Contacts Investor Contact: [email protected]