Aug 10 (Reuters) - Altice NV /SFR ::* SFR shares up 9.2 pct to 34.35 euros in early session trading.* Altice has announced full buyout offer for remaining SFR shares, priced at 34.50 euros per SFR share.* Altice NV shares up more than 2 pct.* Altice NV shares closed down 5.2 pct in previous session, after sources told Reuters that Altice and its U.S. cable unit were in the early stages of working on an offer to buy Charter Communications Inc . nL4N1KV51F.