FORM 8.3 PUBLIC OPENING POSITION DISCLOSURE/DEALING DISCLOSURE BYA PERSON WITH INTERESTS IN RELEVANT SECURITIES REPRESENTING 1% OR MORERule 8.3 of the Takeover Code (the “Code”) 1.KEY INFORMATION   (a)Full name of discloser:Dimensional Fund Advisors Ltd. whose parent is Dimensional Fund Advisors LP, and also on behalf their investment advisory affiliates (“Dimensional”). The Dimensional entities are investment advisors and Dimensional expressly disclaims beneficial ownership of the shares described in this ...

Key Information - Dimensional Fund Advisors Ltd. is acting as an investment advisor on behalf of its affiliates and disclaims beneficial ownership of the shares mentioned in the disclosure [1] Positions of the Person Making the Disclosure - Dimensional Fund Advisors holds 10,910,198 shares of Senior PLC, representing 2.60% of the relevant securities [4][5] - The total includes 41,898 shares for which Dimensional does not have discretion regarding voting decisions [5] Other Information - No indemnity or other dealing arrangements were disclosed [13] - There are no agreements or understandings relating to options or derivatives concerning voting rights or future acquisition/disposal of relevant securities [14] - The date of disclosure is 2 March 2026, and the contact for further information is Thomas Hone [15]

Key Information - The Vanguard Group, Inc. has disclosed its position in Beazley plc, indicating ownership of 30,076,757 relevant securities, which represents 5.02% of the total [1][3]. - The disclosure was made on February 2, 2026, with the position held as of January 30, 2026 [1][2]. Positions of the Discloser - The Vanguard Group, Inc. holds 30,076,757 shares of Beazley plc, categorized as 5p ordinary shares [2][3]. - There are no cash-settled or stock-settled derivatives reported in this disclosure [3]. Dealings - The Vanguard Group, Inc. made two purchases of Beazley plc shares: 561 shares at £11.33 each and 9,938 shares at £11.35 each [7][8].

Key Information - Dimensional Fund Advisors Ltd. disclosed its interests in Rio Tinto PLC and Rio Tinto Limited, holding 4,625,346 shares (0.37%) in Rio Tinto PLC and 6,769,457 shares (1.82%) in Rio Tinto Limited as of January 15, 2026 [3][5][8] - The disclosure indicates that Dimensional does not have beneficial ownership of the shares and does not have discretion regarding voting decisions for a portion of the shares held [5][8] Positions - In Rio Tinto PLC, Dimensional holds 4,625,346 shares, representing 0.37% of the total relevant securities [5] - In Rio Tinto Limited, Dimensional holds 6,769,457 shares, representing 1.82% of the total relevant securities [8] Dealings - Dimensional sold 7,504 shares of Rio Tinto PLC at a price of 62.9016 GBP per unit [13] - A transfer of 3,731 shares of Rio Tinto PLC was also noted [13]

Key Information - Dimensional Fund Advisors Ltd. is acting as an investment advisor on behalf of its affiliates and disclaims beneficial ownership of the shares described in the disclosure [1] Positions of the Person Making the Disclosure - Dimensional Fund Advisors holds 25,006,081 shares of Just Group PLC, representing 2.41% of the relevant securities [4][5] - The total includes 51,686 shares for which Dimensional does not have discretion regarding voting decisions [5] Dealings - On December 4, 2025, Dimensional Fund Advisors sold 8,265 shares of Just Group PLC at a price of 2.1550 GBP per unit [9]

Key Information - Man Group PLC disclosed a position in Tritax Big Box REIT plc, holding 24,992,624 relevant securities, representing 1.01% of the total [1] - The disclosure also includes interests in cash-settled derivatives amounting to 12,303,612 (0.50%) and stock-settled derivatives of 37,296,236 (1.50%) [3] - The date of the position held is July 10, 2024, and the disclosure was made on July 11, 2024 [1][16] Positions - The total interests and short positions disclosed include: - Relevant securities owned: 24,992,624 (1.01%) - Cash-settled derivatives: 12,303,612 (0.50%) with short positions of 719,600 (0.03%) - Stock-settled derivatives: 37,296,236 (1.50%) with short positions of 719,600 (0.03%) [3] Dealings - The company has reduced its long position in cash-settled derivatives through multiple transactions, with the largest being 847,207 units at a price of 1.4367 [9] - Additional reductions in long positions include transactions of 262,066 units at 1.4324, 91,159 units at 1.4320, and several smaller transactions [9] Other Information - There are no indemnity or other dealing arrangements disclosed that may influence the dealings in relevant securities [13] - No agreements or understandings relating to options or derivatives affecting voting rights or future acquisitions/disposals of relevant securities were reported [15]

Key Information - Davidson Kempner Capital Management LP disclosed a position in Spectris PLC, representing 1.18% of the relevant securities [1][3] - The position was held as of June 18, 2025, with the disclosure made on June 19, 2025 [1][14] Positions of the Discloser - The discloser holds 1,168,695 cash-settled derivatives, equivalent to 1.18% of the relevant securities [3] Dealings - The discloser increased a long position in cash-settled derivatives by purchasing 49,480 units at a price of GBP 33.0600 per unit [8] - Additionally, another purchase of 22,442 units was made at GBP 33.1200 per unit [8]

Key Information - The discloser is Man Group PLC, which has interests in relevant securities of American Axle & Manufacturing Holdings, Inc. and Dowlais Group plc [1][1][1] - The date of the position held is April 24, 2025 [1] Positions of the Discloser - Man Group PLC holds 855,942 shares of USD 0.01 common stock, representing 0.73% of the relevant securities [3] - The company has short positions in cash-settled derivatives amounting to 99,521, representing 0.08% [3] Dealings - Man Group PLC sold a total of 39,439 shares of USD 0.01 common stock at a price of 3.641 USD per unit on April 24, 2025 [7] Other Information - There are no indemnity or option arrangements related to the relevant securities [12] - There are no agreements or understandings regarding voting rights or future acquisition or disposal of relevant securities [14]