 Harpoon Therapeutics Inc NASDAQ:HARP insider Natalie Sacks sold 4,556 shares of the businesss stock in a transaction dated Monday, April 13th. The shares were sold at an average price of 12.06, for a total value of 54,945.36. Following the transaction, the insider now owns 50,310 shares in the company, valued at approximately 606,738.60. The sale ... 