Company: BCS
Filing Date: 2025-08-04
Form Type: 424B2
Source: 0001193125-25-172249
Chunk: 13

Company: BARCLAYS PLC
Filing Date: 2025-08-04
Form: 424B2
Chunk 13
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 amended before IP completion day; and                                 |

| (iii) | direct EU legislation (as defined in the Withdrawal Act), which immediately before IP completion day                                                                                          
 implemented EU CRD as it forms part of domestic law of the U.K. by virtue of the Withdrawal Act and as the same may be amended or replaced in accordance with domestic law from time to time; |

| • |     | “U.K. CRD Regulation” means Regulation (EU) No 575/2013 of the European Parliament and of the Council                                                                                                                                              
 of 26 June 2013 on prudential requirements for credit institutions and investments firms, as amended before IP completion day, as it forms part of domestic law of the U.K. by virtue of the Withdrawal Act and as the same may be further amended 
 or replaced in accordance with domestic law from time to time;                                                                                                                                                                                     |

S-4

| • |     | “Withdrawal Act” means the U.K. European Union (Withdrawal Act) 2018, as amended; |

| • |     | “we,” “us,” “our” and the “Issuer” refer to Barclays PLC (or any 
 successor entity), unless the context requires otherwise; and    |

| • |     | “$” and “U.S. dollars” refer to the lawful currency for the time being of the United States. |

S-5

SUMMARY The following is a summary of this prospectus supplement and should be read as an introduction to, and in conjunction with, the remainder of this prospectus supplement, the accompanying prospectus and any documents incorporated by reference therein. You should base your investment decision on a consideration of this prospectus supplement, the accompanying prospectus and any documents incorporated by reference therein, as a whole. Words and expressions defined in “Description of Senior Notes” below shall have the same meanings in this summary. GENERAL

| The Issuer                     |     | Barclays PLC                                                                                                                                                                                                                                            
 Barclays is a diversified bank with five operating divisions comprising: Barclays UK, Barclays UK Corporate Bank, Barclays Private Bank and                                                                                                             
 Wealth Management, Barclays Investment Bank and Barclays US Consumer Bank, which are supported by Barclays Execution Services Limited, the Group-wide service company providing technology, operations and functional services to businesses across the 
 Group. Barclays UK broadly represents businesses that sit within the UK ring-fenced bank, Barclays Bank UK PLC (“BBUKPLC”) and its subsidiaries, and comprises UK Personal Banking, UK Business Banking and Barclaycard Consumer UK. From