LSE Results Presentation Deck

Strong start to our cost synergy programme: 43% of cost synergies (1) delivered in 2021 up from initial target of 25% (2) £88m £63m Initial 2021 target Over-delivery WOLSEG £151m Total 2021 cost synergies Leading to a 2021 in-year cost benefit of £97m - Data centre rationalisation c.40% complete Exited 27 properties; c.75% of the original property synergy plan Renegotiated c.60% of the strategic supplier contracts targeted for optimisation. - Significant reduction in net employee costs (1) End of period run-rate cost synergies (2) Initial year 1 cost synergy guidance provided at the time of announcement of the Refinitiv acquisition in August 2019 31

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