Twitter's top executives stopped selling large volumes of stock in February, according to a report by Fortune.
Stock sales by Twitter executives, scheduled for predetermined times and amounts, were part of a type of program that's common among publicly traded companies—not based on inside information, said Fortune. According to the magazine, the last inside sale was made on Feb. 6, and the stock has gone up 25 percent in following months.
Although many companies have similar policies, Twitter faced criticism that its 10b5-1 program was depressing the company's stock price and sending a message that executives didn't believe in their company. Fortune cites CNBC's own Jim Cramer, host of "," who raised a red flag on Feb. 9, calling for a six-month moratorium on selling within the company.
"There's no reason for a rich guy like Jack Dorsey, the chairman, to necessarily sell 75,360 shares of stock as we just learned, or for CEO Dick Costolo to unload another 125,000 shares as was reported last week," Cramer said on "Mad Money."
A Twitter spokesperson declined to comment to CNBC. For more on the insider selling freeze, the full report in Fortune is here.