[3] The second cooperative bank in Italy (the first one was the Banca Popolare di Lodi), was founded in 1865[4] in Milan by Luigi Luzzatti, who later served as the nation's Prime Minister.

Factorit is a factoring company that operates in the field of the advance and collection of trade receivables and related services, and is also owned by Banca Popolare di Sondrio (60.5%).

[6] The board of directors of 23 March 2010 approved the sale of the custodian bank activity to Bnp Paribas, generating a capital gain of approximately €50 million.

[7] With the emergence of the economic crisis in Greece, a few days after the downgrading of Greek government bonds by the main rating agencies, on 11 May 2010 BPM announced that its exposure to securities of "PIGS countries" is less than 22 million euros.

[8] On 18 June 2010, the Bank of Italy authorized BPM to buy back from Fondiaria Sai, for 113 million euros, the 51% stake held by Milano Assicurazioni in Bipiemme Vita.