Form 8.3 Beazley plc

*A Private Investor is a recipient of the information who meets all of the conditions set out below, the recipient:

Obtains access to the information in a personal capacity;
Is not required to be regulated or supervised by a body concerned with the regulation or supervision of investment or financial services;
Is not currently registered or qualified as a professional securities trader or investment adviser with any national or state exchange, regulatory authority, professional association or recognised professional body;
Does not currently act in any capacity as an investment adviser, whether or not they have at some time been qualified to do so;
Uses the information solely in relation to the management of their personal funds and not as a trader to the public or for the investment of corporate funds;
Does not distribute, republish or otherwise provide any information or derived works to any third party in any manner or use or process information or derived works for any commercial purposes.

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(a) Full name of discloser:	NATIXIS SA
(b) Owner or controller of interests and short positions disclosed, if different from 1(a): The naming of nominee or vehicle companies is insufficient. For a trust, the trustee(s), settlor and beneficiaries must be named.
(c) Name of offeror/offeree in relation to whose relevant securities this form relates: Use a separate form for each offeror/offeree	Beazley plc
(d) If an exempt fund manager connected with an offeror/offeree, state this and specify identity of offeror/offeree:
(e) Date position held/dealing undertaken: For an opening position disclosure, state the latest practicable date prior to the disclosure	18 September 2026
(f) In addition to the company in 1(c) above, is the discloser making disclosures in respect of any other party to the offer? If it is a cash offer or possible cash offer, state “N/A”	No

Class of relevant security:	5p ordinary
	Interests		Short positions
	Number	%	Number	%
(1) Relevant securities owned and/or controlled:	24 071 657	3.99	20 871 492	3.46
(2) Cash-settled derivatives:	20 871 492	3.46	24 071 657	3.99
(3) Stock-settled derivatives (including options) and agreements to purchase/sell:
TOTAL:	44 943 149	7.46	44 943 149	7.46

Class of relevant security	Purchase/sale	Number of securities	Price per unit
5p ordinary	Purchase	91	GBX 1305.00
5p ordinary	Sale	2 164 058	GBX 1304.50
5p ordinary	Sale	890 423	GBX 1304.50
5p ordinary	Sale	380 578	GBX 1304.50
5p ordinary	Purchase	79	GBX 1305.00

Class of relevant security	Product description e,g, CFD	Nature of dealing e,g, opening/closing a long/short position, increasing/reducing a long/short position	Number of reference securities	Price per unit
5p ordinary	Structured Product	Increasing a short position	91	GBX 1305.00
5p ordinary	TRS	Decreasing a short position	2 164 058	GBX 1304.50
5p ordinary	TRS	Decreasing a short position	890 423	GBX 1304.50
5p ordinary	TRS	Decreasing a short position	380 578	GBX 1304.50
5p ordinary	Futures	Increasing a short position	79	GBX 1305.00

Date of disclosure:	21 September 2026
Contact name:	Florence de Queylar
Telephone number*:	+33 1 58 19 40 93

Companies

UK 100

Latest directors dealings

Class of relevant security in relation to which subscription right exists:
Details, including nature of the rights concerned and relevant percentages: