[Form 4] GUIDEWIRE SOFTWARE, INC. Insider Trading Activity

Rhea-AI Filing Summary

John P. Mullen, President of Guidewire Software (GWRE), reported an automatic sale of 3,000 shares of common stock on 09/02/2025 at $214.30 per share. After the transaction he beneficially owned 140,489 shares. The sale was executed under a 10b5-1 trading plan adopted by Mr. Mullen on October 15, 2024.

The Form 4 was submitted by Winston King as attorney-in-fact for Mr. Mullen. The filing identifies the reporter as an officer (President) of the issuer and records the transaction as non-derivative stock disposed of pursuant to the pre-established trading plan.

Positive

• Sale executed under a 10b5-1 trading plan, indicating the transaction was pre-planned and intended to provide an affirmative defense to insider trading claims.

Negative

• Insider disposal of 3,000 shares by the company President, which reduces his direct beneficial ownership to 140,489 shares.

Insights

Financial Analyst

TL;DR: Routine insider sale under a 10b5-1 plan; not a company-level earnings or financing event.

The reported 3,000-share sale at $214.30 is a straightforward disposition by the President of Guidewire and was executed under a pre-established 10b5-1 plan dated October 15, 2024. The filing shows 140,489 shares remain beneficially owned, which provides context on ongoing insider exposure. This Form 4 documents transparency and compliance but does not, by itself, change company financials or capital structure.

Corporate Governance Expert

TL;DR: Filing reflects governance best practice—use of 10b5-1 plan and attorney-in-fact signature for execution and reporting.

The disclosure clearly identifies the reporter, relationship to the issuer (President), and the nature of the transaction as automatic under a trading plan. Use of an attorney-in-fact (Winston King) to file the Form 4 is noted and signed. The document meets Section 16 reporting expectations by specifying amount sold, price, post-transaction holdings, and the plan adoption date.

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).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Mullen John P

(Last) (First) (Middle)

C/O GUIDEWIRE SOFTWARE, INC.

970 PARK PL, SUITE 200

(Street)

SAN MATEO CA 94403

(City) (State) (Zip)

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)
	President

3. Date of Earliest Transaction (Month/Day/Year)
09/02/2025

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	09/02/2025		S(1)		3,000	D	$214.3	140,489	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

Explanation of Responses:

1. Automatic sale pursuant to a 10b5-1 Trading Plan adopted by the Reporting Person on October 15, 2024.

Remarks:

	By: Winston King, Attorney-in-Fact for John P. Mullen	09/02/2025
	** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What transaction did John P. Mullen report on Form 4 for GWRE?

The Form 4 reports an automatic sale of 3,000 shares of Guidewire Software common stock on 09/02/2025 at $214.30 per share.

Was the sale by John P. Mullen part of a 10b5-1 plan?

Yes. The sale was executed pursuant to a 10b5-1 trading plan adopted on October 15, 2024 as stated in the filing.

How many GWRE shares does John P. Mullen beneficially own after the reported sale?

After the transaction he beneficially owned 140,489 shares according to the Form 4.

Who filed the Form 4 on behalf of John P. Mullen?

The Form 4 was submitted by Winston King, Attorney-in-Fact, who signed the filing on behalf of Mr. Mullen.

What role does John P. Mullen have at Guidewire Software?

The filing identifies John P. Mullen as an Officer with the title President of Guidewire Software.