Arm Holdings plc began Nasdaq trading in September 2023 using a UK parent incorporated in 2018. Its prospectus traces the operating company to 1990 and identifies a separate earlier listed parent bought by SoftBank in 2016.
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ASOS acquired four Arcadia brands in 2021, then moved Topshop and Topman into a joint venture in 2024. It received GBP 135 million in cash and kept a 25% interest in the company that owns the two brands.
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Zeneca emerged from an ICI demerger in 1993 and merged with Sweden's Astra in 1999. AstraZeneca later spun out its agrochemicals business and added MedImmune and Alexion.
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BHP operated through two listed parent companies for about two decades. In January 2022 the UK scheme transferred the London parent under the Australian parent, with more than 2.1 billion new ordinary shares issued to make the switch.
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BP and Amoco merged in December 1998. The enlarged company completed its ARCO acquisition in April 2000 after U.S. competition review. ARCO's Alaska business went to Phillips as part of the remedy.
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British Airways and Iberia completed their merger in January 2011 under a Spanish holding company. Their airline brands continued, while the group combined cargo operations and added other carriers.
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The UK government first offered a majority of British Telecommunications shares in 1984. It sold more shares in 1991 and 1993 and relinquished its remaining special share in 1997.
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The 1997 Guinness and Grand Metropolitan merger created Diageo with major food and drinks businesses. Over the next five years it sold Pillsbury and Burger King while adding selected Seagram spirits brands.
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GSK shareholders of record received one Haleon share per GSK share in July 2022. GSK then consolidated its own shares four for five. The two steps changed different registers, while Pfizer and pension-related entities held separate stakes in Haleon.
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HSBC bought 14.9% of Midland Bank in 1987 and the remaining interests in 1992. The takeover put Midland under HSBC Holdings and moved the group head office from Hong Kong to London.
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Informa contributed digital businesses and US$350 million to a transaction with TechTarget in December 2024. Former TechTarget investors received stock and cash, while the UK company acquired a controlling interest in the enlarged Nasdaq-listed business.
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Kraft's recommended offer combined 500 pence in cash and 0.1874 Kraft shares per Cadbury ordinary share. The U.S. buyer declared the offer unconditional in February 2010. The takeover became a test case for Britain's rules on bidder statements and offer conduct.
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London Stock Exchange Group completed its Refinitiv acquisition on 29 January 2021. It sold Borsa Italiana to Euronext three months later as part of the competition commitments for the deal.
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Five years after taking control of GKN, Melrose separated automotive, powder metallurgy and hydrogen into Dowlais. Shareholders first had their existing Melrose shares consolidated, then received a new share in Dowlais for each consolidated share.
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The CMA accepted a remedy requiring the sale of 87 sites after CD&R bought Morrisons. Nine buyers took them from January to May 2023, with SGN and Shell accounting for 58.
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Britain's electricity system operator left National Grid on 1 October 2024 and became part of the publicly owned National Energy System Operator. National Grid reported £673 million in total consideration after an earlier £630 million enterprise value announcement.
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Prudential distributed one M&G share for every Prudential share in 2019, and one Jackson share for every 40 in 2021. The separate listings and Prudential’s initial retained Jackson stake show how the two transactions differed.
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Rolls-Royce started as a car maker, built an aero-engine business and entered state ownership in 1971 when the RB211 programme ran into trouble. The motor and aero-engine businesses then followed separate ownership paths.
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The UK government reduced its Royal Mail stake from 30% after the 2013 flotation to zero in 2015. A decade later EP Group acquired the postal operator's parent, with a new government consent right over Royal Mail's headquarters and tax residence.
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AB InBev completed its purchase of UK-listed SABMiller in October 2016. Two sales to Asahi then separated the Peroni, Grolsch and Meantime businesses and a distinct package spanning five Central and Eastern European countries.
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The proposal would have made Walmart a 42% shareholder in the combined retailer. The Competition and Markets Authority traced the consequences through supermarket aisles, delivery areas and petrol forecourts before prohibiting the deal.
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Tesco reported 5,040 group locations including franchises at its 2025 year-end, up from 4,942. Its UK count excluding franchises rose by 43, while UK One Stop franchises increased by 37.
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Nearly seven in ten UK companies on the register were under ten years old on 31 March 2026. The largest group was one to four years old. The average age across the register was 9.2 years.
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Unilever combined its Dutch and UK parent companies on 29 November 2020. Unilever PLC survived the cross-border merger, and the Dutch parent, Unilever NV, ceased to exist.
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Vodafone UK and Three UK combined on 31 May 2025, with Vodafone holding 51%. Vodafone bought out CK Hutchison's 49% interest in July 2026 while the original competition undertakings continued.
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Whitbread bought Costa for £19 million in 1995 when it had 39 shops. Its 2019 sale to Coca-Cola generated £3.8 billion in net cash proceeds and left Whitbread to expand Premier Inn in Britain and Germany.
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