3. General and Administrative Costs

in thousands of EUR

2016

2015

Salaries & wages

4,371

5,295

Share-based payments

6,331

3,382

Social security

334

537

Pension costs

101

310

Other employee-related costs

805

542

Professional fees

1,487

1,743

IPO related costs

-

1,606

Other costs

1,705

724

15,134

14,139

Refer to Note 28 to the consolidated financial statements regarding defined benefit pension costs and the change in pension plan in 2015.