Alibaba Exhibit 99.1: HK Next Day Return (Oct 28, 2025)

Rhea-AI Filing Summary

Alibaba Group Holding Limited furnished a Form 6-K to provide its Hong Kong Stock Exchange Next Day Disclosure Return as Exhibit 99.1. The company notes that, as an HKEX-listed issuer, it must submit this return to report movements in authorized issued shares or treasury shares pursuant to Hong Kong Listing Rule 13.25A. The exhibit is dated October 28, 2025 and is attached to this report.

The filing also confirms Alibaba files annual reports under Form 20-F. No financial results or transaction details are presented in this submission; it primarily furnishes the required disclosure return.

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

October 31, 2025

Commission File Number: 001-36614

Alibaba Group Holding Limited

(Registrant’s name)

26/F Tower One, Times Square

1 Matheson Street

Causeway Bay

Hong Kong S.A.R.

People’s Republic of China

(Address of principal executive offices)

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 ¨

EXPLANATORY NOTE

As an issuer listed on the Hong Kong Stock Exchange, we are required to submit with The Stock Exchange of Hong Kong Limited a next day disclosure return form in relation to the movements in our authorized issued shares or treasury shares as a result of or in connection with certain events (the “Next Day Disclosure Return”) pursuant to Rule 13.25A of the Hong Kong Listing Rules. We are furnishing our Next Day Disclosure Return dated October 28, 2025 as Exhibit 99.1 of this Current Report on Form 6-K.

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EXHIBITS

Exhibit 99.1 – Next Day Disclosure Return with The Stock Exchange of Hong Kong Limited – Next Day Disclosure Return dated October 28, 2025

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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.

	ALIBABA GROUP HOLDING LIMITED
Date: October 31, 2025	By:	/s/ Kevin Jinwei ZHANG
	Name:	Kevin Jinwei ZHANG
	Title:	Company Secretary

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FAQ

What did Alibaba (BABA) submit in this Form 6-K?

Alibaba furnished its Next Day Disclosure Return to HKEX as Exhibit 99.1.

What is Exhibit 99.1 in Alibaba’s 6-K?

Exhibit 99.1 is the HKEX Next Day Disclosure Return dated October 28, 2025.

Why did Alibaba furnish a Next Day Disclosure Return?

As an HKEX-listed issuer, Alibaba must report share movements under Hong Kong Listing Rule 13.25A.

Does this 6-K include Alibaba’s financial results?

No. It furnishes the Next Day Disclosure Return and related compliance information.

Which annual report format does Alibaba use?

Alibaba files annual reports under Form 20-F.

What is the date of the disclosure return provided?

The Next Day Disclosure Return is dated October 28, 2025.