Information about the outcome of a placement (including underwriter take-up) is information 'concerning' a listed entity for the purposes of Listing Rule 3.1, and materiality is assessed by reference to a broad class of investors including unsophisticated ones, not just institutional investors.
The full text is available to signed-in members, including the 8 later cases that cite this judgment.
3 of the 8 citing cases carry a classified treatment. How each court treated it is available to signed-in members.