Article L228-28 of the French Commercial code
The defaulting shareholder, successive transferees and subscribers are jointly and severally liable for the unpaid amount of the share. The company may take action against them, either before or after the sale, or at the same time, to obtain both the sum due and reimbursement of the costs incurred. The person who has paid off the company shall have recourse for the whole against the successive holders of the share….