 Harpoon Therapeutics Inc NASDAQ:HARP insider Natalie Sacks sold 1,021 shares of the firms stock in a transaction dated Friday, April 17th. The stock was sold at an average price of 12.08, for a total value of 12,333.68. Following the completion of the transaction, the insider now owns 46,254 shares in the company, valued at 558,748.32. ... 