6 Stocks Moving In Wednesday's After-Hours Session

Gainers

• Alpine Immune Sciences Inc ALPN shares are up 10 percent. No news was immediately available.
• Long Blockchain Corp LBCC shares are up 8 percent, reversing the 7 percent loss shares saw in the regular trading session.
• Facebook Inc FB shares are up 2.7 percent after CEO Mark Zuckerberg held a brief conference call with reporters after the market closed.

Losers

• Conatus Pharmaceuticals Inc CNAT shares are down 25 percent after shares were briefly halted after reporting that top-line results from Phase 2b POLT-HCV-SVR trial did not meet its primary endpoint.
• NuCana PLC (ADR) NCNA shares are down 6 percent. No news was immediately available.
• Longfin Corp LFIN shares are down 6 percent after CEO Venkat Meenavalli appeared on CNBC.