Guidewire (GWRE) CEO executes 1,200-share 10b5-1 stock sale at $160

Q: Was the Guidewire Software (GWRE) CEO’s share sale under a 10b5-1 trading plan?

Yes. The footnote states the sale was an automatic transaction pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 14, 2025. Such plans pre-arrange trades, reducing the importance of short-term timing decisions.

Filing Impact

(High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Guidewire Software, Inc. Chief Executive Officer Michael George Rosenbaum reported an open-market sale of 1,200 shares of common stock at $160.00 per share. After this transaction, he directly holds 225,943 shares. The sale was executed automatically under a Rule 10b5-1 trading plan adopted on October 14, 2025.

Insider Trade Summary 10b5-1

Net Seller: 1,200 shares

Net Sell 1 txn

Insider Rosenbaum Michael George

Role Chief Executive Officer

Sold 1,200 shs ($192K)

Type	Security	Shares	Price	Value
Sale	Common Stock	1,200	$160.00	$192K

Holdings After Transaction: Common Stock — 225,943 shares (Direct)

Footnotes (1)

F1. Automatic sale pursuant to a 10b5-1 Trading Plan adopted by the Reporting Person on October 14, 2025.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 03/17/2026 - 07:07 PM

FAQ

What insider transaction did Guidewire Software (GWRE) report on this Form 4?

Guidewire Software reported that CEO Michael George Rosenbaum sold 1,200 shares of common stock in an open-market transaction at $160.00 per share. This filing documents the trade and updates his reported ownership position following the sale.

How many Guidewire Software (GWRE) shares does the CEO hold after this sale?

After the reported sale, CEO Michael George Rosenbaum directly holds 225,943 shares of Guidewire Software common stock. This figure reflects his position immediately following the 1,200-share open-market sale disclosed in the Form 4 insider trading report.

What was the price of the Guidewire Software (GWRE) shares sold by the CEO?

The 1,200 Guidewire Software shares were sold at an average price of $160.00 per share. This price applies to the common stock transaction recorded in the Form 4 and forms the basis for calculating the total value of the reported sale.

Is this Guidewire Software (GWRE) Form 4 transaction a buy or a sell?

This Form 4 reports a sell transaction. CEO Michael George Rosenbaum executed an open-market sale of 1,200 shares of common stock, reducing his holdings to 225,943 shares, as reflected in the post-transaction ownership column on the insider trading report.

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).

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^*

Rosenbaum Michael George

(Last)

(First)

(Middle)

C/O GUIDEWIRE SOFTWARE, INC.

970 PARK PL, SUITE 200

(Street)

SAN MATEO

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)

X	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Executive Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/16/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	03/16/2026		S⁽¹⁾		1,200	D	$160	225,943	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Automatic sale pursuant to a 10b5-1 Trading Plan adopted by the Reporting Person on October 14, 2025.

Remarks:

	By: Winston King, Attorney-in-Fact for Michael George Rosenbaum	03/17/2026
	** 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.

Source: View Original Filing on SEC EDGAR