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Harbour Energy
FTSE Russell has announced changes to the investability weighting of Harbour Energy (UK) effective from the start of trading on April 1, 2026, following updated shareholder information due to a secondary offering. These changes will impact several FTSE UK Index Series, including the FTSE 250 Index, FTSE 350 Index, FTSE All-Share Index, FTSE All-Share ex Multinationals Index, FTSE 350 Higher Yield Index, and FTSE UK Dividend + Index. Disclaimer*

About this update from Harbour Energy Plc
Harbour Energy (UK): Investability Weight Change Changes in FTSE UK Index Series 27 March 2026 Following the receipt of updated shareholder information for Harbour Energy (UK, constituent), as a result of a secondary offering, please see details of affected indexes and effective dates below: Index Effective From Start of Trading FTSE 250 Index 01 April 2026 FTSE 350 Index 01 April 2026 FTSE All-Share Index 01 April 2026 FTSE All-Share ex Multinationals Index 01 April 2026 FTSE 350 Higher Yield Index 01 April 2026 FTSE UK Dividend + Index 01 April 2026 For further information please contact FTSE Russell Client Services at [email protected] or call: Australia +61 (0) 2 7228 5659 Hong Kong +852 2164 3333 Japan +81 3 6441 1430 London +44 (0) 20 7866 1810 New York +1877 503 6437 Alternatively please visit our website at lseg.com/ftse-russell Terms of Use | Copyright © 2026 FTSE Russell
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