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LONDON--(BUSINESS WIRE)-- FORM 8.3 PUBLIC OPENING POSITION DISCLOSURE/DEALING DISCLOSURE BY A PERSON WITH INTERESTS IN RELEVANT SECURITIES REPRESENTING 1% OR MORE Rule 8.3 of the Takeover Code (the Code) 1. KEY INFORMATION (a) Full name of discloser: NATIXIS (Natixis SA and its affiliate Harris Associates LP) (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 G4S 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 5th November 2020 (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 2. POSITIONS OF THE PERSON MAKING THE DISCLOSURE If there are positions or rights to subscribe to disclose in more than one class of relevant securities of the offeror or offeree named in 1(c), copy table 2(a) or (b) (as appropriate) for each additional class of relevant security. (a) Interests and short positions in the relevant securities of the offeror or offeree to which the disclosure relates following the dealing (if any) Class of relevant security: 25p ordinary Interests Short positions Number % Number % (1) Relevant securities owned and/or controlled: 127 019 8,18 (2) Cash-settled derivatives: 7 958 000 0,51 (3) Stock-settled derivatives (including options) and agreements to purchase/sell: TOTAL: 134 977 762 8,69 All interests and all short positions should be disclosed. Details of any open stock-settled derivative positions (including traded options), or agreements to purchase or sell relevant securities, should be given on a Supplemental Form 8 (Open Positions). (b) Rights to subscribe for new securities (including directors and other employee options) Class of relevant security in relation to which subscription right exists: Details, including nature of the rights concerned and relevant percentages: 3. DEALINGS (IF ANY) BY THE PERSON MAKING THE DISCLOSURE Where there have been dealings in more than one class of relevant securities of the offeror or offeree named in 1(c), copy table 3(a), (b), (c) or (d) (as appropriate) for each additional class of relevant security dealt in. The currency of all prices and other monetary amounts should be stated. (a) Purchases and sales Class of relevant security Purchase/sale Number of securities Price per unit 25p ordinary Sale 888 975 GBP 2,1335 25p ordinary Sale 214 989 GBP 2,1325 25p ordinary Sale 622 552 GBP 2,1323 25p ordinary Sale 795 838 GBP 2,1366 25p ordinary Sale 74 046 GBP 2,1410 25p ordinary Sale 25 548 GBP 2,1335 25p ordinary Sale 6 182 GBP 2,1325 25p ordinary Sale 18 083 GBP 2,1323 25p ordinary Sale 22 612 GBP 2,1366 25p ordinary Sale 2 275 GBP 2,1410 25p ordinary Sale 7 082 GBP 2,1335 25p ordinary Sale 1 712 GBP 2,1325 25p ordinary Sale 4 990 GBP 2,1323 25p ordinary Sale 6 305 GBP 2,1366 25p ordinary Sale 611 GBP 2,1410 25p ordinary Sale 8 997 GBP 2,1335 25p ordinary Sale 2 175 GBP 2,1325 25p ordinary Sale 6 405 GBP 2,1323 25p ordinary Sale 7 884 GBP 2,1366 25p ordinary Sale 839 GBP 2,1410 25p ordinary Sale 20 761 GBP 2,1335 25p ordinary Sale 5 023 GBP 2,1325 25p ordinary Sale 14 576 GBP 2,1323 25p ordinary Sale 18 606 GBP 2,1366 25p ordinary Sale 1 734 GBP 2,1410 25p ordinary Sale 19 563 GBP 2,1335 25p ordinary Sale 4 733 GBP 2,1325 25p ordinary Sale 13 941 GBP 2,1323 25p ordinary Sale 17 129 GBP 2,1366 25p ordinary Sale 1 834 GBP 2,1410 25p ordinary Sale 35 509 GBP 2,1335 25p ordinary Sale 8 590 GBP 2,1325 25p ordinary Sale 24 982 GBP 2,1323 25p ordinary Sale 31 694 GBP 2,1366 25p ordinary Sale 3 025 GBP 2,1410 25p ordinary Sale 5 439 GBP 2,1335 25p ordinary Sale 1 317 GBP 2,1325 25p ordinary Sale 3 103 GBP 2,1323 25p ordinary Sale 5 578 GBP 2,1366 25p ordinary Sale 463 GBP 2,1410 25p ordinary Sale 2 087 GBP 2,1335 25p ordinary Sale 505 GBP 2,1325 25p ordinary Sale 1 191 GBP 2,1323 25p ordinary Sale 2 140 GBP 2,1366 25p ordinary Sale 177 GBP 2,1410 25p ordinary Sale 685 GBP 2,1335 25p ordinary Sale 459 GBP 2,1323 25p ordinary Sale 633 GBP 2,1366 25p ordinary Sale 223 GBP 2,1410 25p ordinary Sale 6 532 GBP 2,1335 25p ordinary Sale 1 581 GBP 2,1325 25p ordinary Sale 4 793 GBP 2,1323 25p ordinary Sale 5 447 GBP 2,1366 25p ordinary Sale 747 GBP 2,1410 25p ordinary Sale 1 506 GBP 2,1335 25p ordinary Sale 1 011 GBP 2,1323 25p ordinary Sale 1 392 GBP 2,1366 25p ordinary Sale 491 GBP 2,1410 25p ordinary Sale 3 216 GBP 2,1335 25p ordinary Sale 777 GBP 2,1325 25p ordinary Sale 1 836 GBP 2,1323 25p ordinary Sale 3 298 GBP 2,1366 25p ordinary Sale 273 GBP 2,1410 25p ordinary Sale 2 416 GBP 2,1325 25p ordinary Sale 17 078 GBP 2,1323 25p ordinary Sale 8 796 GBP 2,1366 25p ordinary Sale 910 GBP 2,1410 (b) Cash-settled derivative transactions 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 (c) Stock-settled derivative transactions (including options) (i) Writing, selling, purchasing or varying Class of relevant security Product description e.g. call option Writing, purchasing, selling, varying etc. Number of securities to which option relates Exercise price per unit Type e.g. American, European etc. Expiry date Option money paid/ received per unit (ii) Exercise Class of relevant security Product description e.g. call option Exercising/ exercised against Number of securities Exercise price per unit (d) Other dealings (including subscribing for new securities) Class of relevant security Nature of dealing e.g. subscription, conversion Details Price per unit (if applicable) 4. OTHER INFORMATION (a) Indemnity and other dealing arrangements Details of any indemnity or option arrangement, or any agreement or understanding, formal or informal, relating to relevant securities which may be an inducement to deal or refrain from dealing entered into by the person making the disclosure and any party to the offer or any person acting in concert with a party to the offer: Irrevocable commitments and letters of intent should not be included. If there are no such agreements, arrangements or understandings, state none NONE (b) Agreements, arrangements or understandings relating to options or derivatives Details of any agreement, arrangement or understanding, formal or informal, between the person making the disclosure and any other person relating to: (i) the voting rights of any relevant securities under any option; or (ii) the voting rights or future acquisition or disposal of any relevant securities to which any derivative is referenced: If there are no such agreements, arrangements or understandings, state none NONE (c) Attachments Is a Supplemental Form 8 (Open Positions) attached? NO Date of disclosure: 6th November 2020 Contact name: Carole Sign Telephone number*: +33 1 58 32 17 94 Public disclosures under Rule 8 of the Code must be made to a Regulatory Information Service. The Panels Market Surveillance Unit is available for consultation in relation to the Codes disclosure requirements on +44 (0)20 7638 0129. *If the discloser is a natural person, a telephone number does not need to be included, provided contact information has been provided to the Panels Market Surveillance Unit. The Code can be viewed on the Panels website at www.thetakeoverpanel.org.uk.

Answer: Form 8.3 - G4S Plc