Companies Act 2006: Primary legislation governing company operations including share capital provisions, directors' duties, share transfer restrictions, company record-keeping requirements, and pre-emption rights

Financial Services and Markets Act 2000 (FSMA): Regulatory framework covering financial promotion rules, regulated activities provisions, and investor protection measures

Employment Rights Act 1996: Legislation relevant when the restricted stock agreement is part of an employee share scheme

Income Tax (Earnings and Pensions) Act 2003: Tax legislation governing the treatment of restricted securities and employment-related securities provisions

Corporation Tax Act 2009: Legislation covering corporate tax implications of share-based arrangements

Financial Services and Markets Act 2000 (Financial Promotion) Order 2005: Specific rules governing the promotion of financial instruments

Market Abuse Regulation (EU) 596/2014: Retained EU law covering insider dealing provisions and market manipulation rules

UK Listing Rules and Disclosure Guidance: Regulatory framework for listed companies covering disclosure requirements and trading restrictions

Data Protection Act 2018 and UK GDPR: Legislative framework for handling personal data in share purchase agreements

Small Business, Enterprise and Employment Act 2015: Legislation including requirements for People with Significant Control (PSC) register

Articles of Association: Company's constitutional document that may contain relevant share transfer and dealing provisions

Shareholders' Agreement: Existing agreements between shareholders that may affect share transfers and restrictions

Stock Exchange Rules: Additional requirements if the company is listed on a stock exchange

Corporate Governance Code: Best practice guidelines for company management and shareholder relations

FCA Regulations: Financial Conduct Authority regulations affecting financial instruments and their trading