The share capital of ASTM S.p.A. is equal to EUR 36,788,507.50 and is divided into 73,577,015 ordinary shares held as follows:
| Nuova Argo Finanziaria S.p.A. * | 85.40% |
| Treasury shares | 14.60% |
| Total | 100.00% |
* Company controlled by Aurelia (50.5%), the Gavio Group holding company, and co-owned with Ardian (49.5%) through Mercure Investment and Mercure Holding 2.
Aurelia, holding of the Gavio family, operates in Italy and worldwide in the fields of motorway concessions, large infrastructure works, technology, transport and yachting.
Ardian is a leading global private investment company with assets under management totalling $180 billion.