Unfortunately I can only find data for the new share OMU, nothing for OML. The OMU price plus the one Quilter share for every three held does not seem to be close to what I think OML traded in the week before the unbundling.
OML doesn't exist anymore, it has been replaced by OMU & QLT. OML shareholders got fleeced by the directors. The directors made it out with millions, shareholders were told about "value unlock " pie in the sky kind of story, you get my drift?