** Wagamama owner Restaurant Group's shares RTN.L up 3.7%
to 45.9p
** Chairman Ken Hanna to step down after months of pressure
from activist investors
** Hanna informed of his intention not to seek re-election
at the group's next annual general meeting due to personal
reasons, and will remain chair until a successor is appointed
** Activist shareholders Oasis Management and Irenic Capital
Management seeking changes in management, as shares lost
two-third of value last year
** Up to Thursday's close, stock up ~47% YTD
(Reporting by Khushi Mandowara in Bengaluru)
((Khushi.Mandowara@thomsonreuters.com;))