 Shares of Mastech Digital, Inc Common Stock Inc AMEX:MHH rose by 1 from the previous closing price. A Form 4 filing filed with the SEC on Monday, August 3 showed that Galilee Brenda C sold 7,433 shares at an average price of 21.65. The transaction moved the executives stake in Mastech Digital, Inc Common Stock Inc. to 34,904 shares.The Importance of Insider Transactions While transactions from an insider shouldnt be used as the sole item to make an investment or trading decision, an insider buying or selling stock in their company can be a good added factor that leads to more conviction in a decision.When an insider buys stock after an important sell off, that can indicate the insiders faith in the success of the organization. Henceforth, if the stock is bought at new highs, it might be because the insider feels that the stock is not overvalued. Insiders who sell stock at new lows could be anticipating some capitulation moment. If the insider sells at new highs, it could point to the intention to take some profit and lock in a gain.Transaction Codes To Focus On Investors prefer focusing on transactions which take place in the open market, indicated in the Form 4 with codes P for purchase and S for sale. If the transaction was an open-market transaction, that means that the insider made a concious decision for the companys stock moving forward.Transaction codes besides P or S arent relatively important as they are seldom tied to a decision by the executive. For example, transaction code A is indicative of an insider being forced to sell shares to attain compensation. Moreover, transaction code C indicates the conversion of an option.See more from Benzinga Earnings Scheduled For July 29, 2020C 2020 Benzinga.com. Benzinga does not provide investment advice. All rights reserved. 