Company: BCS
Filing Date: 2025-02-19
Form Type: 424B2
Source: 0001193125-25-029335
Chunk: 13

Company: BARCLAYS PLC
Filing Date: 2025-02-19
Form: 424B2
Chunk 13
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 addition to the documents listed in the accompanying prospectus and the documents incorporated by reference since the date
of the accompanying prospectus, we incorporate by reference in this prospectus supplement and the accompanying prospectus any future documents we may file with the SEC under Section 13(a), 13(c), 14 or 15(d) of the Exchange Act from the date of
this prospectus supplement until the offering contemplated in this prospectus supplement is completed. Reports on Form 6-K we may furnish to the SEC after the date of this prospectus supplement (or portions
thereof) are incorporated by reference in this prospectus supplement only to the extent that the report expressly states that it is (or such portions are) incorporated by reference in this prospectus supplement.

We will provide to you, upon your written or oral request, without charge, a copy of any or all of the documents referred to above or in the
accompanying prospectus which we have incorporated in this prospectus supplement by reference. You should direct your requests to Barclays Treasury, Barclays PLC, 1 Churchill Place, London E14 5HP, U.K. (telephone: +44-20-7116-1000).

S-3

CERTAIN DEFINITIONS For purposes of this prospectus supplement:

| • |     | “BBPLC” refers to Barclays Bank PLC (or any successor entity); |

| • |     | “BBUKPLC” refers to Barclays Bank UK PLC (or any successor entity); |

| • |     | “Capital Regulations” means, at any time, the laws, regulations, requirements, standards, guidelines                                                                                                                                           
 and policies relating to capital adequacy and/or minimum requirement for own funds and eligible liabilities and/or loss absorbing capacity for credit institutions of either (i) the PRA and/or (ii) any other national or European authority, 
 in each case then in effect in the U.K. (or in such other jurisdiction in which we may be organized or domiciled) and applicable to the Group including U.K. CRD;                                                                              |

| • |     | “EU CRD” means: |

| (i) | 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; and    |

| (ii) | Directive 2013/36/EU of the European Parliament and of the Council of 26 June