SEC Form 4

FORM 4		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 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* HEINEN ROGER J JR (Last) (First) (Middle) SOUTHPOINTE 275 TECHNOLOGY DRIVE (Street) CANONSBURG PA 15317 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol ANSYS INC [ ANSS ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 08/24/2005
	4. If Amendment, Date of 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

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	08/24/2005		M		5,790	A	$3.2375	5,790	D
Common Stock	08/24/2005		M		7,016	A	$5.3438	12,806	D
Common Stock	08/24/2005		M		12,000	A	$14.205	24,806	D
Common Stock	08/24/2005		S		24,806	D	(1)	0	D
Common Stock	08/24/2005		M		6,000	A	$7.042	6,000	D
Common Stock	08/24/2005		M		6,000	A	$18.9405	12,000	D

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 Securities Underlying Derivative Security (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: 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
Options to Purchase	$3.2375	08/24/2005		M			5,790	(2)	05/14/2007	Common Stock	5,790	$3.2375	0	D
Options to Purchase	$5.3438	08/24/2005		M			7,016	(3)	05/13/2008	Common Stock	7,016	$5.3438	0	D
Options to Purchase	$7.042	08/24/2005		M			6,000	(4)	05/09/2011	Common Stock	6,000	$7.042	0	D
Options to Purchase	$14.205	08/24/2005		M			12,000	(5)	05/15/2013	Common Stock	12,000	$14.205	12,000	D
Options to Purchase	$18.9405	08/24/2005		M			6,000	(6)	05/13/2014	Common Stock	6,000	$18.9405	18,000	D

Explanation of Responses:

1. The trade was executed in a series of transactions with a price range of $37.30 to $37.78, with a weighted average price of $37.6455.

2. The option grant of 23,166 shares vests 25% on the first anniversary and continues to vest 25% each year thereafter until 05/14/2001.

3. The option grant of 14,034 shares vests 25% on the first anniversary and continues to vest 25% each year thereafter until 05/13/2002.

4. The option grant of 24,000 shares vests 25% on the first anniversary and continues to vest 25% each year thereafter until 05/09/2005.

5. The option grant of 24,000 shares vests 25% on the first anniversary and continues to vest 25% each year thereafter until 05/15/2007.

6. The option grant of 24,000 shares vests 25% on the first anniversary and continues to vest 25% each year thereafter until 05/13/2008.

	Lisa M. O'Connor, Attorney-in-Fact	08/26/2005
	** Signature of Reporting Person	Date
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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