X0202 4 2007-09-25 1 0000766430 AMERICAN TECHNICAL CERAMICS CORP amk 0001327949 Johnson, William C/O AMERICAN TECHNICAL CERAMICS 2201 CORPORATE SQ. BLVD. JACKSONVILLE FL 32216 0 1 0 0 Vice President, Sales Common Stock 2007-09-25 4 D 0 2000 24.75 D 0 D Options 13.22 2007-09-25 4 D 0 40000 11.53 D 2015-07-31 Common Stock 40000 0 D The dispositions reported in this Form 4 were in connection with the merger of the issuer with Admiral Byrd Acquisition Sub, Inc., a wholly-owned subsidiary of AVX Corporation, pursuant to that certain Agreement and Plan of Merger, dated as of June 15, 2007, by and among the issuer, AVX Corporation and Admiral Byrd Acquisition Sub, Inc. (the "Merger"), in exchange for the right to receive a cash payment equal to $24.75 per share. These options, which provided for vesting in four equal annual installments commencing on August 1, 2006, were accelerated and became fully vested, and were converted in connection with the Merger in exchange for the right to receive a cash payment of $461,200, representing the right to receive $24.75 in cash less the applicable exercise price with respect to each share of common stock underlying such option. /S/WILLIAM JOHNSON 2007-09-25