By Dan Weil Ark funds bought Twitter in November, but have been regular sellers since late December, and the sales have grown this month. Investment luminary Cathie Wood’s Ark Investment Management unloaded almost 4 million shares of social media titan Twitter (TWTR) – Get Twitter, Inc. Report Monday. The selling came three days ahead of Twitter’s fourth-quarter earnings report. The flagship Ark Innovation ETF (ARKK) – Get ARK Innovation ETF Report sold 3.66 million shares, while Ark Next Generation ETF (ARKW) – Get ARK Next Generation Internet ETF Report discarded 280,794 shares, various medi…