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

September 11, 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

The Exhibit 99.1 and Exhibit 99.3 to this Report of Foreign Private Issuer on Form 6-K shall be incorporated by reference into the Company’s Registration Statement on Form F-4, as amended and supplemented (Registration No. 333-288794), filed with the Securities and Exchange Commission, and shall be a part thereof from the date on which this Report is furnished, to the extent not superseded by documents or reports subsequently filed or furnished by the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended.

EXHIBITS

Exhibit 99.1 – Press Release – Alibaba Group Announces Proposed Offering of Approximately US$3.2 Billion of Zero Coupon Convertible Senior Notes

Exhibit 99.2 – Announcement – Proposed Offering of Approximately US$3.2 Billion Zero Coupon Convertible Senior Notes

Exhibit 99.3 – Press Release – Alibaba Group Prices Approximately US$3.2 Billion Offering of Zero Coupon Convertible Senior Notes

Exhibit 99.4 – Announcement – Pricing of Offering of Approximately US$3.2 Billion Zero Coupon Convertible Senior Notes

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.

ATTACHMENTS / EXHIBITS

EXHIBIT 99.1

EXHIBIT 99.2

EXHIBIT 99.3

EXHIBIT 99.4