The story
1994 Cassa di Risparmio di Biella merged with Cassa di Risparmio di Vercelli to form Cassa di Risparmio di Biella e Vercelli (BiverBanca) C.R. Vercelli Foundation held 26.2% stake and C.R. Biella Foundation held 73.8% stake
1997 Banca Commerciale Italiana acquired 55% shares from the banking foundations
1999 Became part of Banca Intesa Group
2007 Acquired by Banca Monte dei Paschi di Siena (BMPS) from Intesa Sanpaolo (55%) for about €399 million; C.R. Biella Foundation retained 33.22% and C.R. Vercelli Foundation 11.78%
2008 Re-capitalization, BMPS held 59%, C.R. Biella Foundation held 35% and C.R. Vercelli Foundation held 6%
2010 Acquired branches from sister bank Banca Antonveneta; new ownership ratio changed to BMPS (60.42%), C.R. Biella Foundation 33.44% and C.R. Vercelli Foundation 6.14%.
2012 Acquired by Cassa di Risparmio di Asti from BMPS for about €205.5 million (for 60.42% stake)
From Wikipedia’s article on Cassa di Risparmio di Biella e Vercelli, shared under CC BY-SA 4.0.5