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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 Barclays PLC. DIALOG SEMICONDUCTOR PLC 15 April 2021 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) Number (%) Number (%) (1) 1,731,611 2.26% 645,313 0.84% (2) 573,429 0.75% 1,494,858 1.95% (3) 0 0.00% 0 0.00% 2,305,040 3.01% 2,140,171 2.79% 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 Purchase/sale Number of Price per unit securities Purchase 23 64.4257 EUR Purchase 34 64.4256 EUR Purchase 52 64.4588 EUR Purchase 58 64.4600 EUR Purchase 107 64.4800 EUR Purchase 150 64.4255 EUR Purchase 220 64.4403 EUR Purchase 293 64.4930 EUR Purchase 453 64.4754 EUR Purchase 562 64.4936 EUR Purchase 803 64.6400 EUR Purchase 807 64.4923 EUR Purchase 1,019 64.4933 EUR Purchase 1,312 64.5881 EUR Purchase 1,489 64.4927 EUR Purchase 1,870 64.4680 EUR Purchase 4,023 64.6138 EUR Purchase 5,709 64.5000 EUR Purchase 8,246 64.5975 EUR Purchase 9,524 64.4044 EUR Purchase 39,432 64.4960 EUR Purchase 75,000 64.4515 EUR Sale 13 64.4200 EUR Sale 16 64.4600 EUR Sale 90 64.6288 EUR Sale 172 64.5219 EUR Sale 178 64.5242 EUR Sale 239 64.5534 EUR Sale 502 64.4831 EUR Sale 549 64.4266 EUR Sale 619 64.5123 EUR Sale 668 64.5410 EUR Sale 819 64.5712 EUR Sale 954 64.5808 EUR Sale 997 64.4872 EUR Sale 1,368 64.4800 EUR Sale 1,413 64.5621 EUR Sale 2,052 64.5513 EUR Sale 2,074 64.5900 EUR Sale 2,202 64.5031 EUR Sale 2,506 64.5570 EUR Sale 2,520 64.5496 EUR Sale 5,267 64.5000 EUR Sale 6,974 64.6400 EUR Sale 7,241 64.5500 EUR Sale 8,000 64.3900 EUR Sale 18,372 64.6221 EUR Sale 21,277 64.5020 EUR Sale 50,000 64.4952 EUR (b) Cash-settled derivative transactions Product Nature of dealing Number of Price per description reference unit securities SWAP Long 90 64.6282 EUR CFD Long 619 64.5123 EUR CFD Short 8 64.5887 EUR SWAP Short 34 64.4255 EUR SWAP Short 173 64.4256 EUR CFD Short 1,304 64.5881 EUR SWAP Short 4,023 64.6138 EUR CFD Short 8,246 64.5975 EUR SWAP Short 9,524 64.4044 EUR SWAP Short 75,000 64.4515 EUR (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 YES 16 Apr 2021 Large Holdings Regulatory Operations 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. SUPPLEMENTAL FORM 8 (OPEN POSITIONS) DETAILS OF OPEN STOCK-SETTLED DERIVATIVE (INCLUDING OPTION) POSITIONS, AGREEMENTS TO PURCHASE OR SELL ETC. Note 5(i) on Rule 8 of the Takeover Code (the Code) 1. KEY INFORMATION 2. STOCK-SETTLED DERIVATIVES (INCLUDING OPTIONS) Class Product Writing, Number Exercise Type Expiry of description purchasing, of price date relevant selling, securities per unit security varying etc to which option relates 10p ordinary Call Options Purchased 22,020 69.0099 European 30 Apr 2021 3. AGREEMENTS TO PURCHASE OR SELL ETC. Full details should be given so that the nature of the interest or position can be fully understood: It is not necessary to provide details on a Supplemental Form (Open Positions) with regard to cash-settled derivatives. The currency of all prices and other monetary amounts should be stated. The Panels Market Surveillance Unit is available for consultation in relation to the Codes disclosure requirements on +44 (0)20 7638 0129. The Code can be viewed on the Panels website at www.thetakeoverpanel.org.uk.

Answer: FORM 8.3 - DIALOG SEMICONDUCTOR PLC