Poniard Pharmaceuticals $7 Mateon Therapeutics Inc $4,839 Celldex Therapeutics Inc $6,884,556 Harpoon Therapeutics, Inc. $154,147 Poniard Pharmaceuticals $7 Mateon Therapeutics Inc $4,839 Celldex Therapeutics Inc $6,884,556 Harpoon Therapeutics, Inc. $154,147