Executives at microblogging platform Twitter (NASDAQ: TWTR) will, for the time being, hit the brakes on selling large amounts of shares, Fortune reported, after coming under criticism for lowering the prices. The plan, or the 10b5-1, is not uncommon, allowing top executives to sell shares in predetermined intervals. Jim Cramer of CNBC was especially critical of the selling, writing an letter-style response to Twitter, Fortune reported. "Memo to the board of directors of Twitter: Someone suggest that there be a moratorium on selling stock for a bit, maybe six months, maybe a year, to show that you believe in the company… If I were on the board I would simply say, ‘Hey guys, could you give it a break for a while because you are now telling a good narrative about user growth and engagement and you are starting to get people excited again about the company and its stock and your selling makes them feel foolish," Cramer wrote.