Original Post: Prince Alwaleed bin Talal and his investment company Kingdom Holding Company have made a combined Investment of $300 million in Twitter, it was announced today. This is being characterized as a strategic investment in Twitter, but the valuation (or percent ownership in Twitter) wasn't disclosed. Prince Alwaleed is a nephew of the Saudi King.
Twitter's venture capital investors include Andreessen Horowitz, Benchmark Capital, Charles River Ventures, Insight Venture Partners, Institutional Venture Partners, Kleiner Perkins Caufield & Byers, Spark Capital and Union Square Ventures.
Link the the Kingdom Holding Company press release: http://www.prnewswire.com/news-releases/prince-alwaleed--kingdom-holding-company-make-a-300-million-investment-in-twitter-135843108.html
Links to stories:
NY Times DealBook: http://dealbook.nytimes.com/2011/12/19/saudi-prince-invests-300-million-in-twitter/