Hello all. Im fairly new to trading but ran into an interesting problem today im hoping somebody can help me with. Lets use the stock symbol PWRD as example: Nasdaq.com has total institutional holders at 83, with no insider trading activity at all. http://www.nasdaq.com/symbol/pwrd/institutional-holdings/activity Reuters.com lists 85 holders, with no insider trading either http://www.reuters.com/finance/stocks/insiderTrading?symbol=PWRD.O CNBC.com lists 86 holders, and has a log of insider trading, most recently showing a sale on 9/26/2012 http://data.cnbc.com/quotes/PWRD/tab/8.2 Edgar Online SEC reports show no filings whatsoever for form 4, insider trading http://www.sec.gov/cgi-bin/browse-e...exclude&Find=Find+Companies&action=getcompany CNBC seems to be the most accurate, as it is a fact that Fosun (largest holder) owns nearly %10 of PWRD, and CNBC is the only one even listing Fosun as a holder. But where is CNBC pulling these insider trades from if not SEC filings? I'm not even going to mention yahoo, i could see their data is inaccurate from the start. I thought i could trust nasdaq.com though, so another question is: Who can i trust for accurate information? it seems finding out the answer to a simple question like how much of a company is owned by insiders, you get 5 different answers on 5 different websites.