X0303 4 2010-01-12 0 0001340752 Molecular Insight Pharmaceuticals, Inc. MIPI 0001299065 Barlow David S 640 LEWIS WHARF BOSTON MA 02110 0 0 1 0 COMMON STOCK 2010-01-12 4 S 0 200 2.06 D 2667977 D COMMON STOCK 2010-01-12 4 S 0 800 2.07 D 2667177 D COMMON STOCK 2010-01-12 4 S 0 500 2.09 D 2666677 D COMMON STOCK 2010-01-12 4 S 0 500 2.08 D 2666177 D COMMON STOCK 2010-01-12 4 S 0 500 2.08 D 2665677 D COMMON STOCK 2010-01-12 4 S 0 1000 2.08 D 2664677 D COMMON STOCK 2010-01-12 4 S 0 500 2.08 D 2664177 D COMMON STOCK 2010-01-14 4 S 0 500 2.04 D 2663677 D COMMON STOCK 2010-01-14 4 S 0 500 2.05 D 2663177 D COMMON STOCK 2010-01-14 4 S 0 500 1.95 D 2662677 D COMMON STOCK 2010-01-14 4 S 0 500 1.95 D 2662177 D COMMON STOCK 2010-01-14 4 S 0 500 1.99 D 2661677 D COMMON STOCK 2010-01-14 4 S 0 500 1.96 D 2661177 D COMMON STOCK 2010-01-14 4 S 0 300 2.05 D 2660877 D COMMON STOCK 2010-01-14 4 S 0 1000 2.04 D 2659877 D COMMON STOCK 2010-01-14 4 S 0 500 1.95 D 2659377 D COMMON STOCK 2010-01-14 4 S 0 314 1.97 D 2659063 D COMMON STOCK 2010-01-14 4 S 0 500 1.97 D 2658563 D COMMON STOCK 2010-01-14 4 S 0 186 1.95 D 2658377 D MR. WILLIAM F. RUCCI JR., CPA, MST, AS ATTORNEY-IN-FACT FOR DAVID S. BARLOW 2009-01-21