Sonus Networks Inc $0 Penske Automotive $16,604,314 Gtt Communications Inc $3,122 Axcelis Technologies Inc $11,843,751 Pendrell Corporation $0 Sonus Networks Inc $0 Penske Automotive $16,604,314 Gtt Communications Inc $3,122 Axcelis Technologies Inc $11,843,751 Pendrell Corporation $0