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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 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) (1) 32,186,409 3.88% 12,209,851 1.47% (2) 11,520,080 1.39% 30,050,373 3.63% (3) 0 0.00% 0 0.00% 43,706,489 5.27% 42,260,224 5.10% 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 37p ordinary Purchase 1,036 4.0630 GBP 37p ordinary Purchase 1,596 4.0620 GBP 37p ordinary Purchase 1,754 4.0615 GBP 37p ordinary Purchase 2,068 4.0605 GBP 37p ordinary Purchase 2,087 4.0690 GBP 37p ordinary Purchase 2,426 4.0680 GBP 37p ordinary Purchase 2,938 4.0608 GBP 37p ordinary Purchase 3,053 4.0725 GBP 37p ordinary Purchase 5,670 4.0650 GBP 37p ordinary Purchase 6,390 4.0700 GBP 37p ordinary Purchase 7,199 4.0619 GBP 37p ordinary Purchase 7,302 4.0717 GBP 37p ordinary Purchase 8,656 4.0609 GBP 37p ordinary Purchase 10,329 4.0603 GBP 37p ordinary Purchase 11,356 4.0634 GBP 37p ordinary Purchase 12,009 4.0610 GBP 37p ordinary Purchase 13,565 4.0705 GBP 37p ordinary Purchase 14,022 4.0729 GBP 37p ordinary Purchase 18,627 4.0697 GBP 37p ordinary Purchase 32,944 4.0621 GBP 37p ordinary Purchase 55,897 4.0636 GBP 37p ordinary Purchase 100,391 4.0718 GBP 37p ordinary Sale 518 4.0630 GBP 37p ordinary Sale 824 4.0845 GBP 37p ordinary Sale 1,280 4.0850 GBP 37p ordinary Sale 1,596 4.0620 GBP 37p ordinary Sale 1,639 4.0613 GBP 37p ordinary Sale 1,754 4.0615 GBP 37p ordinary Sale 1,864 4.0842 GBP 37p ordinary Sale 1,894 4.0610 GBP 37p ordinary Sale 1,990 4.0846 GBP 37p ordinary Sale 2,057 4.0643 GBP 37p ordinary Sale 2,068 4.0605 GBP 37p ordinary Sale 2,087 4.0690 GBP 37p ordinary Sale 2,600 4.0677 GBP 37p ordinary Sale 2,605 4.0840 GBP 37p ordinary Sale 2,776 4.0705 GBP 37p ordinary Sale 3,330 4.0833 GBP 37p ordinary Sale 5,577 4.0646 GBP 37p ordinary Sale 5,816 4.0820 GBP 37p ordinary Sale 7,750 4.0637 GBP 37p ordinary Sale 7,814 4.0685 GBP 37p ordinary Sale 13,826 4.0672 GBP 37p ordinary Sale 14,006 4.0700 GBP 37p ordinary Sale 14,251 4.0654 GBP 37p ordinary Sale 16,445 4.0683 GBP 37p ordinary Sale 22,922 4.0860 GBP 37p ordinary Sale 30,424 4.0865 GBP 37p ordinary Sale 59,521 4.0679 GBP 37p ordinary Sale 195,307 4.0687 GBP 37p ordinary Sale 497,950 4.0829 GBP (b) Cash-settled derivative transactions 37p ordinary SWAP Long 736 4.0635 GBP 37p ordinary CFD Long 7,438 4.0700 GBP 37p ordinary SWAP Long 8,292 4.0675 GBP 37p ordinary SWAP Long 10,609 4.0679 GBP 37p ordinary SWAP Long 11,931 4.0691 GBP 37p ordinary SWAP Long 111,712 4.0681 GBP 37p ordinary SWAP Long 160,737 4.0678 GBP 37p ordinary SWAP Short 4,689 4.0702 GBP 37p ordinary SWAP Short 7,673 4.0700 GBP 37p ordinary CFD Short 13,760 4.0744 GBP 37p ordinary SWAP Short 135,017 4.0712 GBP (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 020 3134 7213 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 - SIGNATURE AVIATION PLC