The exemption from the obligation to include directors representing employees on the board of directors provided for in the second paragraph of article L. 225-27-1 is applicable to companies whose shares are admitted to trading on a regulated market only if at least four-fifths of their shares are held, directly or indirectly, by a natural person or legal entity acting alone or in concert.
Any appointment made in breach of this article shall be null and void. This nullity does not entail the nullity of the deliberations in which the director irregularly appointed took part.