The DTR 5 regulations primarily apply to which types of listing?

The DTR 5 regulations, which refer to the Financial Conduct Authority's (FCA) rules on disclosure and transparency, apply to both premium and standard listings on the London Stock Exchange. This is because DTR 5 is designed to ensure that issuers meet transparency obligations regarding the ownership of shares and the disclosure of significant shareholders, which is crucial for both types of listings.

Premium listings are typically associated with stricter corporate governance standards, while standard listings have different requirements. However, both categories need to comply with the DTR 5 provisions to maintain the integrity of the market and protect investors. Thus, it is essential for companies under both premium and standard listings to adhere to these regulations, which encompass the rules related to significant shareholder disclosures, notification duties, and transparency requirements.

The application of DTR 5 to private placements and public offerings is not appropriate as these categories follow differing regulations and requirements outside the purview of DTR 5, further supporting why option C encompasses the correct scope of the regulations.