Corporate disputes are capable of arbitration, under Italian law, if they concern negotiable rights (Art. 34(1) of Legislative Decree no. 5 of 17 January 2003). Therefore, the question is: what does "negotiable rights" mean?
The Court of first instance of Florence established an interesting doctrine of arbitrability of corporate disputes, which is enunciated in a recent decision (no. 2906 of 8 September 2016, Italian text available here).
I already examined that doctrine (in this post); moreover, the issue of arbitrability of corporate disputes has often been mentioned on this blog (for instance, in this post, in this one and this one too).