Director/PDMR Shareholdings

The Restricted Share Awards granted to Directors on 1 May 2011 in fulfilment of the share element of the 2010 bonus, as disclosed in the annual report, vested on 30 April 2015. Consequently 34,971 shares were transferred to Mr A Case and 7,461 shares were transferred to Mr J Woyda.

In order to meet their tax liability which was incurred on the day of vesting, Mr Case sold 16,478 shares and Mr Woyda sold 3,516 shares at a price of £22.54 per share. Mr Case retained 18,493 shares and Mr Woyda retained 3,945 shares.

Following the above transactions, the Directors' interest in the Company's share capital is as follows:-

Director	Ordinary Shares	% of Issued Share Capital	Restricted Shares	% of Issued Share Capital	Performance Related Options	% of Issued Share Capital
Mr A Case	577,578	1.9%	67,501	0.22%	357,170	1.19%
Mr J Woyda	77,922	0.3%	14,396	0.05%	89,181	0.30%

The Company was informed of these transactions on 5 May 2015. This notification is made in accordance with DTR 3.1.4R(1)(a).

5 May 2015

For further details contact:

Penny Watson
Company Secretary
Clarkson PLC
Tel: +44(0) 20 7334 0000