Click to view a price quote on IVZ. : Invesco  (IVZ) - Get Report and Janus Henderson Group  (JHG) - Get Report were rising Friday after hedge fund Trian Fund Management said it owns stakes in the asset managers and intends to encourage them to consider strategic options like a merger. Trian said in a regulatory filing that it owns 9.9% stakes in both Invesco and Janus Henderson and has spoken with both firms. Trian said it has asked for two board seats for its co-founders Nelson Peltz and Ed Garden at Invesco.