<div id="readability-page-1"><div>RNS Number : 1758I Frontier Developments PLC 12 June 2026 TR-1: Standard form for notification of major holdings1. Issuer DetailsISINGB00BBT32N39Issuer NameFRONTIER DEVELOPMENTS PLCUK or Non-UK IssuerUK2. Reason for NotificationAn acquisition or disposal of voting rights3. Details of person subject to the notification obligationNameJPMorgan Asset Management Holdings Inc.City of registered office (if applicable)WilmingtonCountry of registered office (if applicable)United States of America4. Details of the shareholder<div><table><tbody><tr><td>Name</td><td>JPMorgan Asset Management (UK) Limited</td></tr><tr><td>City of registered office</td><td>London</td></tr><tr><td>Country of registered office</td><td>United Kingdom</td></tr></tbody></table></div>5. Date on which the threshold was crossed or reached10-Jun-20266. Date on which Issuer notified12-Jun-20267. Total positions of person(s) subject to the notification obligation<div><table><tbody><tr><td></td><td>% of voting rights attached to shares (total of 8.A)</td><td>% of voting rights through financial instruments (total of 8.B 1 + 8.B 2)</td><td>Total of both in % (8.A + 8.B)</td><td>Total number of voting rights held in issuer</td></tr><tr><td>Resulting situation on the date on which threshold was crossed or reached</td><td>5.109839%</td><td>3.473563%</td><td>8.583402%</td><td>3,049,744</td></tr><tr><td>Position of previous notification (if applicable)</td><td>4.955622%</td><td>4.062560%</td><td>9.018182%</td><td></td></tr></tbody></table></div>8. Notified details of the resulting situation on the date on which the threshold was crossed or reached8A. Voting rights attached to shares<div><table><tbody><tr><td>Class/Type of shares ISIN code(if possible)</td><td>Number of direct voting rights (DTR5.1)</td><td>Number of indirect voting rights (DTR5.2.1)</td><td>% of direct voting rights (DTR5.1)</td><td>% of indirect voting rights (DTR5.2.1)</td></tr><tr><td>GB00BBT32N39</td><td></td><td>1,815,562</td><td></td><td>5.109839%</td></tr><tr><td>Sub Total 8.A</td><td colspan="2">1,815,562</td><td colspan="2">5.109839%</td></tr></tbody></table></div>8B1. Financial Instruments according to (DTR5.3.1R.(1) (a))<div><table><tbody><tr><td>Type of financial instrument</td><td>Sub Total 8.B1</td></tr><tr><td>Expiration date</td><td colspan="2"></td></tr><tr><td>Exercise/conversion period</td><td></td></tr><tr><td>Number of voting rights that may be acquired if the instrument is exercised/converted</td><td></td></tr><tr><td>% of voting rights</td></tr></tbody></table></div>8B2. Financial Instruments with similar economic effect according to (DTR5.3.1R.(1) (b))<div><table><tbody><tr><td>Type of financial instrument</td><td>Expiration date</td><td>Exercise/conversion period</td><td>Physical or cash settlement</td><td>Number of voting rights</td><td>% of voting rights</td></tr><tr><td>Cash Settled - Equity Swaps</td><td>N/A</td><td>N/A</td><td>Cash</td><td>1,234,182</td><td>3.473563%</td></tr><tr><td>Sub Total 8.B2</td><td colspan="3"></td><td>1,234,182</td><td>3.473563%</td></tr></tbody></table></div>9. Information in relation to the person subject to the notification obligation2. Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entities (please add additional rows as necessary)<div><table><tbody><tr><td>Ultimate controlling person</td><td>Name of controlled undertaking</td><td>% of voting rights if it equals or is higher than the notifiable threshold</td><td>% of voting rights through financial instruments if it equals or is higher than the notifiable threshold</td><td>Total of both if it equals or is higher than the notifiable threshold</td></tr><tr><td>JPMorgan Asset Management Holdings Inc</td><td>JPMorgan Asset Management (UK) Limited</td><td></td><td></td><td>6.674969%</td></tr><tr><td>JPMorgan Asset Management Holdings Inc</td><td>J.P. Morgan Investment Management Inc.</td><td></td><td></td><td></td></tr></tbody></table></div>10. In case of proxy votingName of the proxy holderThe number and % of voting rights heldThe date until which the voting rights will be heldIf date does not apply, explain below11. Additional InformationChain of controlled undertakings:JPMorgan Asset Management Holdings IncJPMorgan Asset Management International Limited (100%)JPMorgan Asset Management (UK) Limited (100%)JPMorgan Asset Management Holdings IncJ.P. Morgan Investment Management Inc. (100%)12. Date of Completion12-Jun-202613. Place Of CompletionHyderabad, IndiaThis information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. 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JPMO

JPMorgan Asset Management Holdings Inc. notified Frontier Developments PLC on June 12, 2026, that its subsidiary, JPMorgan Asset Management (UK) Limited, crossed a major holding threshold on June 10, 2026. The total voting rights held reached 8.583402%, comprising 5.109839% in direct shares and 3.473563% via cash-settled equity swaps.

REG - Frontier Developmnts - Holding(s) in Company