Director/PDMR Shareholding

Clarkson PLC
07 April 2008



NOTIFICATION OF TRANSACTIONS OF DIRECTORS, PERSONS DISCHARGING MANAGERIAL
RESPONSIBILITY OR CONNECTED PERSONS

This form is intended for use by an issuer to make a RIS notification required
by DR 3.1.4R(1).


(1)  An issuer making a notification in respect of a transaction relating to 
     the shares or debentures of the issuer should complete boxes 1 to 16, 
     23 and 24.
(2)  An issuer making a notification in respect of a derivative relating to the 
     shares of the issuer should complete boxes 1 to 4, 6, 8, 13, 14, 16, 23 
     and 24.
(3)  An issuer making a notification in respect of options granted to a 
     director/person discharging managerial responsibilities should complete 
     boxes 1 to 3 and 17 to 24.
(4)  An issuer making a notification in respect of a financial instrument 
     relating to the shares of the issuer (other than a debenture) should 
     complete boxes 1 to 4, 6, 8, 9, 11, 13, 14, 16, 23 and 24.



Please complete all relevant boxes in block capital letters.



1. Name of the issuer

CLARKSON PLC

....................................



2. State whether the notification relates to (i) a transaction notified in
accordance with DR 3.1.4R(1)(a); or

(ii) DR 3.1.4(R)(1)(b) a disclosure made in accordance with section 324 (as
extended by section 328) of the Companies Act 1985; or

(iii) both (i) and (ii)

NOTIFICATION MADE IN RESPECT OF (iii)

....................................



3. Name of person discharging managerial responsibilities/director

TIM HARRIS AND SPOUSE

....................................



4. State whether notification relates to a person connected with a person
discharging managerial responsibilities/director named in 3 and identify the
connected person

AS IN BOX 3

....................................

5. Indicate whether the notification is in respect of a holding of the person
referred to in 3 or 4 above or in respect of a non-beneficial interest

AS IN BOX 3

....................................



6. Description of shares (including class), debentures or derivatives or
financial instruments relating to shares

ORDINARY SHARES OF 25P EACH

....................................



7. Name of registered shareholders(s) and, if more than one, the number of
shares held by each of them

AS PER BOX 3

....................................





8 State the nature of the transaction

MARKET SALE AND MARKET PURCHASES

....................................

....................................



9. Number of shares, debentures or financial instruments relating to shares
acquired

4TH APRIL 2008

T HARRIS PURCHASED 123 ORDINARY SHARES AT £7.59

SPOUSE PURCHASED 1038 ORDINARY SHARES AT £7.62

TOTAL:  1161

 7TH APRIL 2008

T HARRIS PURCHASED 963 ORDINARY SHARES AT £7.40

SPOUSE PURCHASED 876 ORDINARY SHARES AT £7.41

TOTAL:  1839




10. Percentage of issued class acquired (treasury shares of that class should
not be taken into account when calculating percentage)

0.016%

....................................



11. Number of shares, debentures or financial instruments relating to shares
disposed

3,000 ORDINARY SHARES AT £7.50 EACH SOLD ON 4TH APRIL 2008

....................................



12. Percentage of issued class disposed (treasury shares of that class should
not be taken into account when calculating percentage)

0.016%

....................................



13. Price per share or value of transaction

AS PER 9 AND 11 ABOVE

....................................



14. Date and place of transaction

AS PER 9 AND 11 ABOVE

....................................



15. Total holding following notification and total percentage holding following
notification (any treasury shares should not be taken into account when
calculating percentage)

10,778 - 0.057%

....................................



16. Date issuer informed of transaction

7TH APRIL 2008

....................................



If a person discharging managerial responsibilities has been granted options by
the issuer complete the following boxes



17 Date of grant

N/A

....................................



18. Period during which or date on which it can be exercised

N/A

....................................



19. Total amount paid (if any) for grant of the option

N/A

....................................



20. Description of shares or debentures involved (class and number)

N/A

....................................



21. Exercise price (if fixed at time of grant) or indication that price is to be
fixed at the time of exercise

N/A

....................................



22. Total number of shares or debentures over which options held following
notification

N/A

....................................



23. Any additional information

N/A

....................................



24. Name of contact and telephone number for queries

STEPHEN DEASEY

TELEPHONE NO:  0207 334 3171



....................................



Name and signature of duly authorised officer of issuer responsible for making
notification

STEPHEN DEASEY - COMPANY SECRETARY

....................................



Date of notification

7TH APRIL 2008

....................................

END


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