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 OF SECURITIES 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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(Print or Type Responses)

1. Name and Address of Reporting Person * Plisinski Michael P   2. Issuer Name and Ticker or Trading Symbol AUGUST TECHNOLOGY CORP [AUGT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) VP of Engineering (Last) (First) (Middle) 4900 WEST 78TH STREET 3. Date of Earliest Transaction (Month/Day/Year) 09/22/2005 (Street) BLOOMINGTON, MN 55435 4. If Amendment, Date Original Filed(Month/Day/Year) 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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 Common Stock 09/22/2005   S(5)   100 D $ 12.18 199,486 D   Common Stock 09/22/2005   S(5)   600 D $ 12.19 198,886 D   Common Stock 09/22/2005   S(5)   200 D $ 12.21 198,686 D   Common Stock 09/22/2005   S(5)   100 D $ 12.23 198,586 D   Common Stock 09/22/2005   S(5)   100 D $ 12.24 198,486 D   Common Stock 09/22/2005   S(5)   5,635 D $ 12.25 192,851 D   Common Stock 09/22/2005   S(5)   3,700 D $ 12.26 189,151 D   Common Stock 09/22/2005   S(5)   1,565 D $ 12.27 187,586 D

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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 (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

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 (Month/Day/Year)

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

Stock Option (right to buy)

$ 7.1

(1)

08/01/2010

Common Stock

40,000

40,000

D

Stock Option (right to buy)

$ 18.45

02/06/2004

02/06/2014

Common Stock

1,737

1,737

D

Stock Option (right to buy)

$ 7.62

02/19/2005

10/22/2014

Common Stock

1,208

1,208

D

Stock Option (right to buy)

$ 10.38

(2)

12/30/2014

Common Stock

3,158

3,158

D

Stock Option (right to buy)

$ 10.38

(3)

12/30/2014

Common Stock

6,842

6,842

D

Stock Option (right to buy)

$ 12.1

03/07/2005

03/07/2015

Common Stock

1,915

1,915

D

Stock Option (right to buy)

$ 12.1

03/07/2005

03/07/2015

Common Stock

1,140

1,140

D

Stock Option (right to buy)

$ 11.8

(4)

04/29/2015

Common Stock

35,000

35,000

D

Stock Option (right to buy)

$ 12.74

07/21/2005

07/21/2015

Common Stock

965

965

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Plisinski Michael P 4900 WEST 78TH STREET BLOOMINGTON, MN 55435			VP of Engineering

Signatures

Robert K. Ranum as Agent for Michael P. Plisinski pursuant to Power of Attorney previously filed		09/23/2005
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Original option (40,000 shares) exercisable in five annual increments of 8,000 shares beginning August 1, 2004.
(2)	Original option (3,158 shares) exercisable: 1,074 shares on December 30, 2004 and 1,042 shares on December 30, 2005 and December 30, 2006.
(3)	Original option (6,842 shares) exercisable: 2,327 shares on December 30, 2004; 2,258 shares on December 30, 2005 and 2,257 shares on December 30, 2006.
(4)	Original option (35,000 shares) exercisable: 11,900 shares on April 29, 2005 and 11,550 shares on April 29, 2006 and April 29, 2007.
(5)	Sale effected pursuant to Rule 10b5-1 trading plan adopted by reporting person on August 30, 2005. Reporting person will receive an additional $0.1488 per share to compensate for a selling date error by broker.

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