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The National Security and Investment Act 2021 came into force on 4 January 2022. The Act gives the UK Government power to scrutinise a wide range of transactions on national security grounds.

Key points to note are:

  • notification of transactions will be mandatory in some sectors. Failure to notify when required will result in the transaction being void;
  • it applies to all buyers and investors, not just those outside the UK or from certain jurisdictions;
  • the regime can be triggered on the acquisition of "material influence" in an entity, which may arise in relation to a low shareholding, potentially even below 15%;
  • it may apply to intra-group transactions; and
  • it may apply to transactions involving non-UK companies or assets.

For further information, see our briefing on the regime. We also discuss it in the context of public M&A transactions in the latest episode of our public M&A podcast series.

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Caroline Rae

Partner, London

Caroline Rae
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Antonia Kirkby

Professional Support Consultant, London

Antonia Kirkby
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Alex Kay

Partner, London

Alex Kay

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Caroline Rae photo

Caroline Rae

Partner, London

Caroline Rae
Antonia Kirkby photo

Antonia Kirkby

Professional Support Consultant, London

Antonia Kirkby
Alex Kay photo

Alex Kay

Partner, London

Alex Kay
Caroline Rae Antonia Kirkby Alex Kay