X0201 4 2003-10-22 0 0000949428 CLEAN DIESEL TECHNOLOGIES INC CDTI 0001246217 GRAY DEREK R C/O CLEAN DIESEL TECHNOLOGIES, INC. 300 ATLANTIC ST., SUITE 702 STAMFORD CT 06901 1 0 0 0 Common Stock 2003-10-22 4 A 0 13276 2.07 A 319103 D Stock Option 3.07 2003-12-02 4 A 0 20000 0 A 2003-12-02 2013-12-02 Common 20000 20000 D Option 1.65 2003-06-11 4 A 0 35000 0 A 2003-06-11 2013-06-10 Common 35000 35000 D Option 2.90 2002-03-13 4 A 0 25000 0 A 2002-03-13 2012-03-13 Common 25000 25000 D Option 1.965 2001-03-14 4 A 0 10000 0 A 2001-03-14 2011-03-13 Common 10000 10000 D Option 2.50 2000-02-10 4 A 0 10000 0 A 2000-02-10 2010-02-09 Common 10000 10000 D Option 0.90 1999-06-14 4 A 0 10000 0 A 1999-06-14 2009-06-14 Common 10000 10000 D Warrant 1.63 2003-09-26 4 A 0 3749 0 A 2003-09-26 2003-09-25 Common 3749 3749 D Warrant 2.00 2001-03-30 4 A 0 1250 0 A 2001-03-30 2011-03-29 Common 1250 1250 D Warrant 2.00 2000-12-30 4 A 0 1250 0 A 2000-12-30 2010-12-29 Common 1250 1250 D Warrant 2.00 2000-11-30 4 A 0 2500 0 A 2000-11-30 2010-11-29 Common 2500 2500 D Warrant 2.25 2000-05-30 4 A 0 27675 0 A 2000-05-30 2010-05-29 Common 27675 27675 D Warrant 1.50 1999-06-30 4 A 0 58333 0 A 2009-06-30 2009-06-29 Common 58333 58333 D 2002 Director's Fees Paid in Stock Derek R. Gray 2004-02-09