Company: HBCYF
Filing Date: 2025-06-05
Form Type: 6-K
Source: 0001193125-25-135438
Chunk: 0

Company: HSBC HOLDINGS PLC
Filing Date: 2025-06-05
Form: 6-K
Chunk 0
---
### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of June 2025

Commission File Number: 001-14930

HSBC Holdings plc

8 Canada Square, London E14 5HQ, England

(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 ☒ Form 40-F ☐

This Report on Form 6-Kis hereby incorporated by reference in the following HSBC Holdings plc registration statement: file number 333-277306

HSBC Holdings plc (the “Registrant”) hereby incorporates by reference the following exhibits to this report on Form 6-Kinto its registration statement: file number 333-277306.

| Exhibit No. |     | Description of Document                                                                                                                |
| 4.1         |     | First Supplemental Indenture to the Contingent Capital Securities Indenture, dated September                                           
 17, 2014, incorporated herein by reference to Exhibit 4.1 to the Registrant’s Form 6-K (File No. 001-14930) dated September 17, 2014.  |
| 4.2         |     | Second Supplemental Indenture to the Contingent Capital Securities Indenture, dated September                                          
 17, 2014, incorporated herein by reference to Exhibit 4.2 to the Registrant’s Form 6-K (File No. 001-14930) dated September 17, 2014.  |
| 4.3         |     | Third Supplemental Indenture to the Contingent Capital Securities Indenture, dated March                                               
 30, 2015, incorporated herein by reference to Exhibit 4.2 to the Registrant’s Form 6-K (File No. 001-14930) dated March 30, 2015.      |
| 4.4         |     | Fourth Supplemental Indenture to the Contingent Capital Securities Indenture, dated June                                               
 1, 2016, incorporated herein by reference to Exhibit 4.1 to the Registrant’s Form 6