Spok Holdings Director Trades $101K In Company Stock Todd J Stein , Director at Spok Holdings (NASDAQ: SPOK ), reported a large insider buy on September 7, according to a new SEC filing. What Happened: A Form 4 filing from the U.S. Securities and Exchange Commission on Wednesday showed that Stein purchased 14,295 shares of Spok Holdings. The total transaction amounted to $101,676. Spok Holdings shares are trading down 0.6% at $7.18 at the time of this writing on Thursday morning. Now trade stocks online commission free with Charles Schwab, a trusted and complete investment firm. The Importance of Insider Transactions Insider transactions shouldn''t be used primarily to … Full story available on Benzinga.com