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 * Hart Richard   2. Issuer Name and Ticker or Trading Symbol Guidewire Software, Inc. [GWRE] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Financial Officer (Last) (First) (Middle) 1001 E. HILLSDALE BLVD., SUITE 800 3. Date of Earliest Transaction (Month/Day/Year) 12/11/2017 (Street) FOSTER CITY, CA 94404 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 12/11/2017   M   751 A $ 53.04 4,776 D   Common Stock 12/11/2017   S(1)   751 D $ 72.7931 4,025 D   Common Stock 12/11/2017   S(2)   363 D $ 72.8101 3,662 D

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

Incentive Stock Option (right to buy)

$ 53.04

12/11/2017

M

315

(3)

03/05/2025

Common Stock

315

$ 0

3,010

D

Non-Qualified Stock Option (right to buy)

$ 53.04

12/11/2017

M

436

(3)

03/05/2025

Common Stock

436

$ 0

2,615

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Hart Richard 1001 E. HILLSDALE BLVD., SUITE 800 FOSTER CITY, CA 94404			Chief Financial Officer

Signatures

By: Winston King Attorney in Fact For: Richard Hart		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)	Automatic stock option exercise and sale pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 12, 2017 as amended on October 10, 2017.
(2)	Automatic sale pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 12, 2017 and amended October 10, 2017.
(3)	When both ISO and NQ Stock Options granted on March 5, 2015 are combined, they vest over four years as follows: 1/4th of the underlying shares vest on the one year anniversary of the vesting commencement date of March 5, 2015 and an additional 1/48th of the underlying shares vest monthly thereafter, subject to the Reporting Person's continuous service.

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