Major purchases by company insiders, like executives and major shareholders, can be a bullish signal for the stock. Their unique access to the company’s inner workings gives them a potential edge in valuing it. When they put their own money behind the stock, it suggests confidence in the company’s future. That’s why it’s interesting to note recent insider buying in the shares of a real estate investment trust (REIT) recently, after a gap of about a year and a half. About Public Storage StockFounded in 1972, Public Storage (PSA) is the world’s largest owner and operator of self-storage faciliti…