Cogent Communications Holdings, Inc. (NASDAQ:CCOI – Get Free Report) shares dropped 7.3% on Wednesday . Cogent Communications News SummaryHere are the key news stories impacting Cogent Communications this week:Get Cogent Communications alerts:Positive Sentiment: CEO Dave Schaeffer is scheduled to present at three upcoming investor conferences, including the KeyBanc Technology Leadership Forum on August 10. Cogent Communications Stock PerformanceThe firm has a market capitalization of $600.21 million, a price-to-earnings ratio of -3.38 and a beta of 0.80. Insider Activity at Cogent CommunicationsIn other Cogent Communications news, CFO Thaddeus Gerard Weed sold 4,850 shares of Cogent Communications stock in a transaction that occurred on Tuesday, June 16th. Further ReadingReceive News & Ratings for Cogent Communications Daily - Enter your email address below to receive a concise daily summary of the latest news and analysts' ratings for Cogent Communications and related companies with MarketBeat.com's FREE daily email newsletter.