Notification of Major Shareholding



12 September 2011





                                    G4S PLC

                       NOTIFICATION OF MAJOR SHAREHOLDING


The  company was  notified on  9 September 2011 by  M&G Investment Funds 1 that,
following  an acquisition of  voting rights, it  now holds voting rights through
71,123,686 ordinary  shares, amounting  to 5.04% of  the company's  total voting
rights.

The  notification  confirmed  that  the  5.04% holding is encompassed within the
5.23% already  disclosed under The Prudential plc  group of companies and is not
in addition to it.



Peter David
Company Secretary









For further enquiries, please contact:

Helen Parris - Director of Investor Relations                              +44
(0) 1293 554400

Media enquiries:
David Allchurch or John Sunnucks, Tulchan Group+44(0) 0207 353 4200

Notes to Editors:


G4S is the world's leading security solutions group, specialising in outsourcing
of  business processes in sectors where security and safety risks are considered
a  strategic threat.   G4S is  the largest  employer quoted  on the London Stock
Exchange  and has  a secondary  stock exchange  listing in  Copenhagen.  G4S has
operations in more than 120 countries and more than 625,000 employees.  For more
information on G4S, visitwww.g4s.com .






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