Sec Form 4 Filing - IRISH JAMES M @ AMERICAN TECHNOLOGY CORP /DE/ - 2003-09-19

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person IRISH JAMES M 2. Issuer Name and Ticker or Trading Symbol AMERICAN TECHNOLOGY CORP /DE/ [ atco] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) CEO (Last) (First) (Middle) 14637 VIA BETTONA 3. Date of Earliest Transaction (MM/DD/YY) 09/19/2003 (Street) SAN DIEGO, CA92127 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Employee Stock Option right to buy $ 3.43 09/19/2003 S( 1 ) 25,000 05/10/2003( 2 ) 02/10/2008( 2 ) common stock 25,000 $ 99,750 0( 1 ) D Employee stock option right to buy $ 3.3 09/19/2003 S( 1 ) 25,000 05/09/2003( 3 ) 05/09/2008( 3 ) common stock 25,000 $ 103,000 0( 1 ) D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other IRISH JAMES M 14637 VIA BETTONA SAN DIEGO, CA92127 X CEO Signatures Renee Warden, Attorney in Fact 09/24/2003 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Effective 9/19/03, the reporting person resigned as CEO of the REgistrant, and resigned as a director on 9/22/03. In connection with the reporting person's resignation the Registrant agree to purchase the REgistrant's vested options as separation compensation. The reporting person's unvested options automatically expired unexercised ( 2 )The option intially vested as to 25,000 shares on 5/10/03, and would have vested in equal annual installments of 25,000 shares thereafter. The option had an original expiration date of 2/10/08, but due to the reporting person's resignation, would have expired on 12/19/03. ( 3 )The option initally vested as to 12,500 shares on 5/9/03, 12,500 shares on 6/30/03 and would have vested in qtrly installments of 12,500 shares thereafter. The option had an original expiration date of 5/9/08, but due to the reporting person's resignation, would have expired on 12/19/03.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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