Marshall | And Ilsley
: The acquisition officially closed on July 5, 2011 , leading to the rebranding of M&I branches to BMO Harris Bank. Historical Significance
: The bank was led by three generations of the Puelicher family; John "Jack" Puelicher was notably recognized for his conservative leadership from 1963 to 1992. marshall and ilsley
: BMO Financial Group announced it would acquire Marshall & Ilsley on December 17, 2010. : The acquisition officially closed on July 5,
: M&I was a pioneer in banking technology; its data processing arm was eventually spun off into the independent company Metavante in 2007. Final Information Statement/Prospectus - SEC.gov marshall and ilsley