Director/PDMR Shareholding

Clarkson PLC
26 October 2007



                                  CLARKSON PLC





This notification is made in accordance with DTR 3.1.4.



On 26 October 2007, the following HMRC approved options and unapproved options
(together, the 'Options') over ordinary shares in the Company were made under
the Clarkson Long Term Incentive Plan (the 'Plan') to Persons Discharging
Managerial Responsibility ('PDMRs') of the Company:


             Name of PDMR                  Number of shares held under HMRC     Number of shares held under unapproved
                                                   approved options                             options
               A L Case                                  3,027                                  46,973



No consideration was paid for the grant of the Options, which are structured as
market value options.



The Options will normally become exercisable on the third anniversary of the
date of grant subject to the satisfaction of performance conditions set by the
Remuneration Committee of the Company.  To the extent that an Option becomes
exercisable, it remains exercisable until the tenth anniversary of the date of
grant.



The exercise price payable by each participant on the exercise of the Options is
£9.91p.



The Company was informed of the above transactions on 26 October 2007.



Name of contact and telephone number for queries: Jeff Woyda - Finance Director.
                                                  020-7334-0000



For and on behalf of Clarkson plc




Stephen Deasey

Date: 26 October 2007







END





Notes to editors



Background to Clarkson PLC



Clarkson PLC (which is listed on the London Stock Exchange) is acknowledged as
the world's leading shipping services group.  Through its unrivalled and
extensive global network of offices it is able to give its clients unique access
to a wide range of shipping services.  Clarksons covers shipbroking, research,
publications, derivatives and logistics.  Clarksons' strategy is to expand and
develop the group around these key activities.



For further information on Clarkson PLC, please visit the company's website at
www.clarksons.com




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