Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 (6-k)

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

For the month of December

HSBC Holdings plc

42nd Floor, 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 X Form 40-F

(Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934).

Yes No X

(If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82- ).

HSBC HOLDINGS PLC

17 December 2021

Notification of a Transaction by a Person Discharging Managerial Responsibilities

On 21 November 2021, Barry O'Byrne cancelled his options to purchase 3,303 ordinary shares of US$0.50 each (the "Shares") in HSBC Holdings plc at an option price of £5.4490 per Share. The options had been granted under the HSBC Holdings Savings-Related Share Option Plan.

The following disclosure is made in accordance with Article 19 of the EU Market Abuse Regulation 596/2014.

1 - Details of the person discharging managerial responsibilities / person closely associated

Name of natural person				Barry O'Byrne

2 - Reason for the notification

Position/status				Chief Executive, Global Commercial Banking

Initial notification/amendment				Initial Notification

3 - Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

Full name of the entity				HSBC Holdings plc

Legal Entity Identifier code				MLU0ZO3ML4LN2LL2TL39

4 - Details of the transaction(s)

Transaction(s) summary table

	Date of Transaction	Financial Instrument	Identification Code	Place of Transaction		Currency
	2021-11-21	Ordinary shares of US$0.50 each	GB0005405286	London Stock Exchange, Main Market (XLON)		GBP - British Pound
	Nature of Transaction:			Price	Volume	Total
	Cancellation of options granted under the HSBC Holdings Savings-Related Share Option Plan			£5.45	3,303	£17,998.05
			Aggregated	£5.449	3,303	£17,998.05

For any queries related to this notification, please contact:

Lee Davis

Shareholder Services

020 7991 3048

SIGNATURE

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.