Director/PDMR Shareholding

OMG PLC
31 March 2008

31 March 2008

                                    OMG plc

                            ('OMG' or 'the Company')

                    Notification of Changes in Shareholdings

OMG, the technology group providing image understanding products for the
entertainment, defence, life science and engineering industries, announces that
on 31 March 2008 it was notified by Dr Julian Morris, a Director of the Company,
that on 31 March 2008 he gifted 150,000 OMG shares to Mrs Susan Duff, his
sister-in-law.  Following this transaction, Dr Morris' interest in the Company
is 10,459,320 OMG shares, representing 16.42% of the issued share capital of the
Company.

The Company also announces that on 31 March 2008 it was notified by Mr Peter
Wharton, a Director of the Company, that on 28 March 2008 he transferred 100,000
OMG shares to his SIPP.  Following this transaction, Mr Wharton's interest in
the Company is unchanged, 604,313 OMG shares, representing 0.95% of the issued
share capital of the Company.


For further information please contact:

OMG plc                                                    01865 261800
Nick Bolton, Chief Executive
Peter Wharton, Finance Director

Financial Dynamics                                         020 7831 3113
Juliet Clarke / Matt Dixon

Evolution Securities                                       020 7071 4300
Jeremy Ellis


Notes to Editors

About OMG

OMG plc (Oxford Metrics Group. LSE: OMG) is a group of technology companies
producing image understanding products and services for the entertainment,
defence, life science and engineering industries. Be it for capturing the
movements of actors (for the movie industry), sportsmen (for video games or
improving team performance), children with Cerebral Palsy, rehab patients and
animals (for medical, life science and research industries) or virtual reality
displays (for engineering and development), the Group has the world leading
market position and a strong international reputation for precision instruments.

Founded in 1984, the Group's headquarters are in Oxford, UK, and it has offices
in California and Colorado, USA. It has customers in over 50 countries and is a
quoted company listed on AIM, a market operated by the London Stock Exchange.
The Group trades through three operating subsidiaries - Vicon, the world's
biggest motion capture and movement analysis company, 2d3, a manufacturer of
specialised image understanding software for entertainment and defence
applications and Yotta, our 3D mapping business, which collects and analyses
highway data and street level imaging and which, following the acquisition of
DCL in July 2007, offers the most accurate and complete highway survey
available.

Oxford Metrics' global clients in science, medicine, sport, engineering, gaming,
film, broadcast and 3D mapping include major hospitals and research facilities
such as Guy's Hospital, Nuffield Orthopaedic Centre and Loughborough University,
engineering industry leaders including Ford Motor Company, BMW, Airbus and
Toyota, and in the entertainment sector, Sony, Industrial Light and Magic, The
Moving Picture Company (MPC), Sega, Nintendo, UbiSoft, EA, Square Enix and in 3D
mapping and highway surveys: Mouchel Parkman, Atkins, and Oxfordshire, Cumbria,
Derbyshire and Pembrokeshire County Councils as well as many others.

For more information about OMG and its subsidiaries, visit www.omg3d.com,
www.vicon.com, www.2d3.com or www.yotta.tv



                                     -Ends-

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