Henderson will pay the key group of New Star staff retained after the takeover £2.9m in cash and approximately £1.34m of new shares in the group.
Under terms of the acquisition finalised this morning, the select group of New Star staff will receive the £4.2m package of cash and new issued shares, subject to certain conditions, after 30 September.
It is understood the preference share lock-in arrangements for key staff ends after this date, however a Henderson spokesperson says individual contracts with certain staff may have been drawn up.
Key staff likely to be in the lock-in deal include Guy de Blonay and Richard Pease.
On 2 February, New Star chief executive Howard Covington confirmed.Investment Week
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