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IPO meaning

What does IPO mean?
An initial public offering (IPO) is the first time a company offers its shares to the public and/or seeks admission of those shares to listing and trading on a stock exchange, typically the London Stock Exchange (Main Market) or Euronext Dublin (and, in the UK, AIM). In practice the term concerns equity; a first-time public bond issue is usually described as a bond offering, not an IPO. “IPO” is a market term rather than a defined statutory concept. The applicable regime derives from the Prospectus Regulation (UK onshored in the UK; EU Regulation 2017/1129 in Ireland), together with the FCA’s Listing Rules, Admission and Disclosure/Transparency Rules and UK MAR, or, in Ireland, Euronext Dublin rules, the Transparency Regulations and EU MAR. A prospectus must typically be approved by the FCA or the Central Bank of Ireland. Key features include eligibility and listing review, preparation of a prospectus, underwriting, marketing (institutional and/or retail), pricing and stabilisation, and post‑listing continuing obligations (disclosure, corporate governance, significant/related party transactions). Usage and legal effects are broadly consistent across England & Wales, Scotland, Northern Ireland and Ireland.
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View the related Checklists about IPO

CHECKLISTS
Taking security over IP in the UK: lender checklist on mortgages and charges, ownership, validity, valuation, associated rights, and registration at Companies House and IP registries

Consider the nature of the IP right From a lender’s standpoint, use this checklist to pinpoint key points when taking IP as security and the steps to implement it... Identify the IP right and applicable law; patents, trade marks, registered designs and copyright can be mortgaged or charged... Select security: a legal mortgage (assignment plus redemption and exclusive licence‑back) offers stronger control than a fixed charge; for charges, restrict disposals and hold an executed undated assignment in escrow (verify foreign recognition)... Confirm ownership, term, existing security, licences and third‑party interests; demand warranties and title evidence, especially for unregistered rights... Assess validity and maintenance: search prior rights, check renewals and genuine use, monitor infringement, review litigation; obtain professional opinions where needed... Value the right and routes on default (licensing or sale); add complementary assets if required... Cover associated rights and materials: unregistered marks/goodwill (only with the business), unregistered designs, database right, know‑how/confidential information, domain names, and software/source code with escrow... Register...

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CHECKLISTS
UKLR Official List equity categories: checklist of eligibility, continuing obligations and DTR application for commercial, international secondary, shell and transition listings

This checklist sets side by side the entry criteria and principal ongoing duties under the UK Listing Rules (UKLR) for equity share listings across these Official List categories: equity shares (commercial companies), equity shares (international commercial companies secondary listing), equity shares (shell companies) and equity shares (transition). It further considers the main continuing obligations set out under the Disclosure Guidance and Transparency Rules (DTR) too...

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CHECKLISTS
Bankruptcy Income Payments Orders (s310) and Agreements (s310A): Practitioner Checklist, Procedure and Key Issues (England and Wales)

Income payments order The trustee in bankruptcy (trustee) may seek an income payments order (IPO) pursuant to section 310 of the Insolvency Act 1986 (IA 1986) where, having assessed matters, they consider the bankrupt enjoys surplus income once the bankrupt’s reasonable domestic needs are allowed for. See Practice Note: Income payments orders (IPOs) under section 310 of the Insolvency Act 1986. The court is responsible for setting the venue for the hearing of the trustee’s application. The trustee must provide the bankrupt with not less than 28 days’ notice of any application, enclosing the application itself and a statement of the grounds on which the order is requested. Up to five business days before the hearing date, the bankrupt may consent to the order by notifying both the court and the trustee. Alternatively, by attending the hearing, the bankrupt may make any representations they wish as to why the order ought not to be made. Any order issued must not leave the bankrupt with less than is necessary to...

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View the related Flowcharts about IPO

FLOWCHARTS
Flowchart of steps to form a limited partnership

Flowchart This flowchart summarises the UK trade mark application journey. Initially, it addresses pre-application actions, such as conducting clearance searches and assessing potential obstacles to registration. It then describes the pathway, starting with filing a trade mark application at the UK Intellectual Property Office (IPO) and concluding with the registration of the trade mark as the culmination...

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FLOWCHARTS
UK trade mark application to registration: practitioner flowchart covering pre-application, IPO filing, examination and opposition

Flowchart This Flowchart depicts general regulatory and contractual issues that arise when building or operating a website...

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View the related News about IPO

NEWS
UK Takeover Panel confirms Takeover Code reforms on DCSS, IPO disclosures and share buybacks, including Rule 9 dispensations and DCSS offer acceptance tests, effective 4 February 2026

What is the background? On 3 July 2025, the Code Committee issued consultation paper PCP 2025/1. It sought views on: a fresh framework for how the Code applies to companies with a dual class share structure (DCSS); new IPO disclosure obligations; and substantial revisions to the rules on share buybacks. The consultation period ended on 26 September 2025. For more detail on the proposals, see News Analysis: Takeover Panel proposes reforms to address dual class share structures, IPO disclosures and share buybacks. What did the Code Committee decide? The Panel received submissions from seven parties, spanning professional bodies, investors and academics. Respondents were firmly in favour of the package of reforms. Accordingly, the Panel approved the amendments from PCP 2025/1, while making limited drafting tweaks to the new Note 4 on Rule 16.1, the new Rule 37.1 (and the Notes thereon) and the new Rule 37.3, together with an extra change to Note 7 on Rule 26...

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NEWS
Life sciences law update: UK and EU IP, medicines advertising, medical devices (MDR/IVDR), data/AI, MHRA/EAMS and naloxone changes, research governance and ethics

In this issue: Intellectual property Medicines advertising Medical devices Data protection in life sciences Pharmaceuticals—regulatory framework Research and development Daily and weekly news alerts New and updated content Dates for your diary Trackers Useful information Intellectual property Ian Jones, partner at Gill Jennings & Every LLP, reviews upcoming changes to UK marketing authorisations (MAs) and supplementary protection certificates (SPCs) following the UK Intellectual Property Office’s statutory guidance on SPCs for medicines, set to apply from 1 January 2025. On 31 October 2024, the UK IPO issued guidance detailing significant updates to MAs for medicines in the UK, grounded in the Windsor Framework, which will come into force on 1 January 2025. These reforms will influence existing and prospective SPCs, as well as the types of authorisation used to support SPC applications. See News Analysis: Changes to marketing authorisations and SPCs in the UK. The Patents Court has revoked two mRNA patents related...

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NEWS
Minister signals UK will not proceed with UK IPO proposal for AI text and data mining copyright exception amid creative industry backlash and Berne/TRIPS concerns

The text and data mining exception The text and data mining exception that would ease copyright rules so computational artificial intelligence (AI) methods can analyse large volumes of information to detect patterns, trends and ‘other useful information’, often embedded in copyright works, was mooted by the UK Intellectual Property Office (UK IPO) in June 2022. On 31 January 2023, Lopez acknowledged the IPO was ‘probably surprised...in terms of the level of concern that was expressed’ and confirmed the matter had been discussed further within the government. ‘I am pretty confident that some of the options the IPO considered to try to create a more permissive environment for AI in this area will not...

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View the related Practice Notes about IPO

PRACTICE NOTES
UK secondary buyouts in private equity: structures, financing, management consideration, tax issues, transaction steps and exit options

For both the investing private equity fund and the target’s leadership, the prime lure of a private equity-backed buyout is the chance to crystallise a meaningful gain on exit. There are several potential paths to exit from such an investment, most typically: a trade sale to another company operating within the same sector, a flotation (IPO), or a secondary buyout (SBO). The ultimate route will hinge on considerations such as public market appetite for a listing and whether credible purchasers are available. Management often influence the decision, and may favour renewed private equity support via an SBO when the business model and prevailing market backdrop align. A secondary buyout (SBO) is, in essence, a private equity-backed acquisition of a company that has already undergone a private equity-backed buyout. In an SBO, the existing private equity owner exits its stake, though the current management team can remain in post afterwards. Alternatively, fresh management might be appointed, or a blend of old and new...

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PRACTICE NOTES
UK Listing Rules reform 2024: commercial companies, shell and international secondary listings; categories, eligibility, significant and related-party transactions, sponsor regime and transitional mapping

This fundamentals note reviews the wide-ranging overhaul of the UK listing regime that came into force on 29 July 2024. It also outlines the core provisions affecting companies seeking, or already holding, a listing as described in the UK Listing Rules sourcebook, including: Equity shares (commercial companies) International commercial companies secondary listing Shell companies Transition category What is the background to the UK listing regime reforms? Post-Brexit, with scope to depart from EU capital markets rules, the government announced an independent review of the UK listing regime in November 2020. Led by Lord Hill, a former EU financial services commissioner, the review aimed to make the UK more attractive for IPOs and improve capital raising on UK markets. The UK Listing Review Report, released in March 2021, set out a series of recommendations for both the government and the FCA. It noted a decline in London IPO activity in recent years—between 2015 and 2020 London accounted for just 5% of...

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PRACTICE NOTES
UK Employee Share Schemes on Interposing a New Holding Company: EMI, CSOP, SAYE, SIP, Rollover and Tax Considerations

Why do companies have reorganisations? Groups of companies carry out reorganisations for numerous and varied reasons. These steps will frequently have implications for existing share plans and other employee equity arrangements. In some instances, the consequences are commercial in nature. Examples include: the reorganisation prompting early vesting, exercise and/or lapse of awards because the relevant provisions in the share plan rules on a change in control of the parent company, or on the participant’s employment ending, have been engaged; and a requirement for awards over shares in the current parent to be swapped for awards over shares in a newly formed parent company. In certain situations, if the right steps are not taken within a defined period, valuable tax advantages may ultimately be lost entirely. Common types of reorganisation The most frequent forms of reorganisation include the following: placing a new group holding or parent entity above an existing company or group, often to enable an initial...

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View the related Precedents about IPO

PRECEDENTS
Precedent controlling shareholder relationship deed for LSE Main Market listed companies (England and Wales law)

STOP PRESS : Significant reforms to the UK prospectus regime came into force on 19 January 2026 Major changes to the UK regime for public offers and admissions to trading took effect on 19 January 2026. The framework for securities offers and UK market admissions is now chiefly contained in the Public Offers and Admissions to Trading Regulations 2024, SI 2024/105 (the POATRs), together with the FCA sourcebook, The Prospectus Rules: Admission to Trading on a Regulated Market (PRM). The UK Prospectus Regulation and the FCA Prospectus Regulation Rules have been repealed. The reforms aim to simplify capital raising and substantially lessen the circumstances in which a company must publish an FCA-approved prospectus for a further share issue. For full details of the changes, see Practice Note: UK prospectus regime reform. This Practice Note sets out the prospectus regime that applied before 19 January 2026...

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PRECEDENTS
Precedent AIM placing letter and placee confirmation form for AIM Admission, including terms, payment and CREST settlement, under English law

[ ON THE LETTERHEAD OF THE PLACING AGENT ] An application has been submitted for the entire issued and to-be-issued ordinary share capital of the Company to be admitted to trading on AIM. It is anticipated that Admission will take effect and dealings in the Ordinary Shares will begin on AIM on [ insert expected date of admission to AIM ]. [ insert name of Placing Agent ] accepts no liability whatsoever for the accuracy of any statements or opinions contained within the Admission Document (as defined below), for which [ insert name of Placing Agent ] bears no responsibility, nor for any omission of material information from the Admission Document. Recipients of this document should note that, in connection with the Placing (as defined below) and Admission, [ insert name of Placing Agent ] is acting solely for the Company and for no one else, and will not be responsible to any person other than the Company for providing the protections afforded to its clients or for advising...

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PRECEDENTS
Precedent: Reporting accountants’ FRP letter to sponsor for UK Main Market admission (UK Listing Rules)

STOP PRESS : Significant reforms to the UK prospectus regime came into force on 19 January 2026 The framework now governing public offers of securities and admissions to trading in the UK is chiefly set out in the Public Offers and Admissions to Trading Regulations 2024, SI 2024/105 (the POATRs), together with the FCA sourcebook, The Prospectus Rules: Admission to Trading on a Regulated Market (PRM). The UK Prospectus Regulation and the FCA Prospectus Regulation Rules have been repealed. These reforms are intended to streamline capital raising and markedly cut the number of situations in which a company must publish an FCA approved prospectus when undertaking a further issue of shares...

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View the related Q&As about IPO

Q&As
Can a pre-31 Dec 2020 passported FCA-approved prospectus be used for EU public offers after 31 Dec 2020?

Passporting provisions in the Prospectus Regulation Under the Prospectus Regulation, an issuer must publish a prospectus and have it approved by a competent authority when offering securities to the public in the EEA or when applying for admission of securities to a regulated market, where no relevant exemption applies. To streamline cross-border share offerings within the EEA, the EU prospectus regime provides passporting arrangements that permit companies to produce a single prospectus usable throughout the EEA, avoiding the preparation of multiple documents for separate jurisdictions. Articles 24 to 26 of the Prospectus Regulation (EU) 2017/1129 set out these passporting provisions, stating that a prospectus approved by the competent authority in one EEA state (the home member state) can be relied upon in another EEA state (the host member state) without requiring the prospectus to be approved again by the competent authority in the host member state. As a result, a UK issuer has been able to undertake a cross-border share offer across the EEA on the basis of...

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Q&As
IPO against trespassers: Consent order granting final possession?

Interim possession order (IPO) An interim possession order (IPO) is a remedy that can be sought solely in relation to trespassers, and non-compliance—by not vacating the premises within 24 hours—constitutes a criminal offence (Criminal Justice and Public Order Act 1994, s 76). This extends to anyone who departs and then returns (CJPOA 1994, s 76(4)). Procedural requirements for applications are set out in CPR 55.21–28...

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