CHRONOLOGY: Key dates in UBS past since Arnold left as CEO

(Reuters) - Pressure on beleaguered Swiss bank UBS AG (UBSN.VX: Quote, Profile, Research) to break up intensified as activist investor and former chief executive Luqman Arnold demanded to shake up its governance and structure.

Following are key dates in the bank's recent history from the moment Arnold was ousted as Chief Executive.

2001

December 2001 - Luqman Arnold is ousted as CEO after only eight months following a dispute over strategy with Chairman Marcel Ospel. He is replaced by Peter Wuffli.

2002

April 2002 - UBS asset management companies are united under a single global brand, UBS Global Asset Management.

November 2002 - UBS announces the sale of its 91.15 percent equity stake in Hirslanden Holding AG.

2003

April 2003 - Acquires Lloyds Bank S.A., the French wealth management business of the British bank Lloyds TSB, significantly increasing the number of UBS clients in France.