Rapid7 (NASDAQ: RPD) shares rallied 6.8% in the last trading session to close at $40.55. This move can be attributable to notable volume with a higher number of shares being traded than in a typical session. This compares to the stock's 0.7% gain over the past four weeks. The upswing came after The Wall Street Journal reported that the activist investor, Jana Partners, has built a stake in Rapid7 and is pushing the cybersecurity company to sell itself. Citing sources familiar with the matter, the news agency revealed that apart from urging for a sale, Jana Partners ...