McCollum, who leaves the group with immediate effect, agreed with the board on Friday (4 April) that it would be an “appropriate time for him to hand over as chief executive officer.”
Chairman Clive Whiley will succeed McCollum to the post of interim executive chairman, as a replacement for McCollum can be found.
Whiley said: “I would like to thank Mike for his extensive efforts over many years, in particular in leading the group as chief executive officer for the last eleven. He has been a notable force throughout a period of significant growth, across all divisions, since the LBO in 2002.”
The group also announced that following the completion of her contractual term, Jane Ashcroft has stepped down from the board, with immediate effect. The board said it has benefited from Jane’s wise counsel for the last eight years and she leaves with the board’s thanks for her support during that time.
Whiley added: “I would like to thank Jane both personally for her guidance since my appointment and on behalf of the board, given the valuable contribution she has provided over the last eight years, and she leaves with our thanks.”