Company: HBCYF
Filing Date: 2025-10-24
Form Type: 6-K
Source: 0001654954-25-012193
Chunk: 0

Company: HSBC HOLDINGS PLC
Filing Date: 2025-10-24
Form: 6-K
Chunk 0
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#### FORM 6-K

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

#### Report of Foreign Private Issuer

#### Pursuant to Rule 13a - 16 or 15d - 16 of

#### the Securities Exchange Act of 1934
<div align='center'>For the month of October</div>

#### HSBC Holdings plc
<div align='center'>**42nd Floor, 8 Canada Square, London E14 5HQ, England

(Indicate by check mark whether the registrant files or will file annual reports undercover of Form 20-F or Form 40-F).

Form 20-F X Form 40-F

HSBC HOLDINGS PLC

24 October 2025

Transaction in own shares and conclusion of buy-back**</div>

HSBC Holdings plc (" HSBC " or the " Company ") announces that it has purchased for cancellation the following number of its ordinary shares of US$0.50 from Merrill Lynch International (" Merrill Lynch" ) as part of its buy-back announced on 31 July 2025.

Hong Kong Stock Exchange

| Date of                                       
 purchase:                                     |           24 
 October 2025 |
| Number                                        
 of ordinary shares of US$0.50 each purchased: |    1,297,200 |
| Highest                                       
 price paid per share:                         |  HK$103.5000 |
| Lowest                                        
 price paid per share:                         |  HK$102.9000 |
| Volume                                        
 weighted average price paid per share:        |  HK$103.2808 |

All repurchases on The Stock Exchange of Hong Kong Limited (" Hong Kong Stock Exchange ") are "off market" for the purposes of the Companies Act 2006 but are transactions which occur "on Exchange" for the purposes of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited and which constitute an "on-market share buy-back" for the purposes of the Codes on Takeovers and Mergers and Share Buy-backs.

There were no repurchases on the London Stock Exchange, Aquis Exchange, Cboe Europe Limited (through the BXE and CXE order books) and/or Turquoise (" UK Venues ").

Following the cancellation of the shares repurchased on the UK Venues, the Company's issued ordinary share capital consists of 17,201,971,220 ordinary shares with voting rights. There are no ordinary shares held in treasury. Cancellation of