John Gwillim-Jones, aged 60, of no fixed abode, pleaded guilty to six offences of theft and was sentenced at Reading Crown Court last month.
The offences took place in Waitrose stores in Sunningdale, Windsor, Marlow, Chesham and Henley, between May 2012 and October 2013.
Gwillim-Jones entered stores on the pretence of being a shopper and stalked female shoppers until he had a chance to reach into their shopping bags or handbags and remove their purses.
Gwillim-Jones was produced from Peterborough Prison on January 21 to a police station in Cambridgeshire and was interviewed about the thefts.
He was charged with six counts of theft on January 22.
He also asked for two further offences of theft to be taken into consideration.