PTC INC $40,817,008 Thermo Fisher Scientific $8,315,227 Merrimack Pharmaceuticals Inc $12,700,848 The Scotts Miracle-Gro Co $1,547,397 PTC INC $40,817,008 Thermo Fisher Scientific $8,315,227 Merrimack Pharmaceuticals Inc $12,700,848 The Scotts Miracle-Gro Co $1,547,397