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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1. Name and Address of Reporting Person * Kankanwadi Sudhindra   2. Issuer Name and Ticker or Trading Symbol SYNOPSYS INC [SNPS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) VP and Corporate Controller (Last) (First) (Middle) 690 EAST MIDDLEFIELD ROAD 3. Date of Earliest Transaction (Month/Day/Year) 12/08/2017 (Street) MOUNTAIN VIEW, CA 94043 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 12/08/2017   M   2,375 A $ 0 5,841 D   Common Stock 12/08/2017   M   954 A $ 0 6,795 D   Common Stock 12/08/2017   M   829 A $ 0 7,624 D   Common Stock 12/08/2017   F   893 (1) D $ 90.51 6,731 D   Common Stock 12/08/2017   F   359 (1) D $ 90.51 6,372 D   Common Stock 12/08/2017   F   312 (1) D $ 90.51 6,060 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

Non-Qualified Stock Option (right to buy)

$ 90.51

12/08/2017

A(2)

17,455

12/08/2018(3)

12/08/2024

Common Stock

17,455

$ 0

17,455

D

Restricted Stock Units

$ 0

12/08/2017

D

2,375

12/08/2017

12/08/2017

Common Stock

2,375

$ 0

0

D

Restricted Stock Units

$ 0

12/08/2017

D

954

12/08/2017

12/08/2019

Common Stock

954

$ 0

1,906

D

Restricted Stock Units

$ 0

12/08/2017

D

829

12/08/2017

12/08/2020

Common Stock

829

$ 0

2,484

D

Restricted Stock Units

$ 0

12/08/2017

A(4)

3,591

12/08/2018(5)

12/08/2021

Common Stock

3,591

$ 0

3,591

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Kankanwadi Sudhindra 690 EAST MIDDLEFIELD ROAD MOUNTAIN VIEW, CA 94043			VP and Corporate Controller

Signatures

By: POA pursuant Christina Escalante-Dutra For: Sudhindra Kankanwadi		12/12/2017
**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)	These shares were retained by the Company in order to meet the tax withholding obligations of the award holder in connection with the vesting of an installment of the restricted stock unit award. The Compensation Committee approved the disposition of shares by the award holder and the amount retained by the Company was not in excess of the amount of the tax liability.
(2)	Grant to reporting person to buy shares of common stock under the Synopsys, Inc 2006 Employee Equity Incentive Plan. The Compensation Committee of the Board of Directors approved an option grant value of $325,000, with the number of shares subject to the option to be determined by dividing that amount by the fair value of an option to acquire a share of Synopsys common stock on the grant date using the Black-Scholes option pricing model.
(3)	1/4 of the grant becomes exercisable one year after grant date with the remainder becoming exercisable in a series of 12 equal quarterly installments thereafter.
(4)	The Compensation Committee of the Board of Directors approved a restricted stock unit grant value of $325,000, with the number of restricted stock units to be determined by dividing that amount by the closing price of Synopsys common stock on the grant date.
(5)	25% of the units vest on the date shown followed by three equal annual installments.

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