X0202 3 2004-08-16 0 0000018937 CERADYNE INC CRDN 0001248183 KERTSON RICHARD A 3940-7 BROAD STREET #388 SAN LUIS OBISPO CA 93401 1 0 0 0 Common Stock 0 D Options 32.76 2005-02-16 2014-08-16 Common Stock 15000 D Richard A. Kertson 2004-08-17