On 15 March 2018, the structure of shareholding is as follows:

Number of shares Holdings % of which shares
forming part of
the joined shareholding
ALVA s.a. (1) 521.437 9,26 521.437
LUXEMPART s.a. (1) 600.247 10,66 521.437
3D n.v. (1) 695.643 12,35 521.437
Stéphan SONNEVILLE s.a. (1, 2) 241.030 4,28 150.500
ForAtenoR s.a. (1) 592.880 10,53 592.880
Sub-total 2.651.237 47,08 2.307.691
Treasury shares 191.343 3,40
Public 2.788.496 49,52
Total 5.631.076 100,00
(1) Signatories of the Shareholders’Agreement
(2) Managing Director, company controlled by Mr Stéphan Sonneville
In compliance with article 74 of the law of 1 April 2007, these shareholders have communicated to the company that they held as a joined holding, at the date of entry into effect of the aforementioned law, more than 30% of the securities with voting rights.