It has acquired additional shares on the open market and will keep its unconditional AU$1.00 per share takeover offer in play.
The lottery, casino and sports betting operator makes its largest US investment to date.
The investment bank's stake in the Australian casino operator has fallen below the 5% threshold.
The deal strengthens Tipico's presence in Austria and ensures Admiral's technological continuity with Novomatic
Mixi Australia is holding a controlling interest and Betr is submitting a conditional scrip-based proposal