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Guidewire Software (GWRE) CEO sells 1,200 shares under 10b5-1 plan

Filing Impact
(High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Guidewire Software Chief Executive Officer Michael George Rosenbaum sold 1,200 shares of common stock on 2026-08-03 at an average price of $155.92 per share in an open-market or private transaction.

The sale was executed automatically under a 10b5-1 Trading Plan adopted on October 14, 2025, and he continues to hold 191,376 shares directly.

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Insights

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Insider Rosenbaum Michael George
Role Chief Executive Officer
Sold 1,200 shs ($187K)
Type Security Shares Price Value
Sale Common Stock F1 1,200 $155.92 $187K
Holdings After Transaction: Common Stock — 191,376 shares (Direct)
Footnotes (1)
  1. F1. Automatic sale pursuant to a 10b5-1 Trading Plan adopted by the Reporting Person on October 14, 2025.
Shares sold 1,200 shares Common Stock sold on 2026-08-03 by the CEO
Sale price per share $155.92 per share Average price for the 1,200-share sale
Shares owned after sale 191,376 shares Direct holdings of Michael George Rosenbaum following the transaction
10b5-1 plan adoption date October 14, 2025 Date the CEO adopted the 10b5-1 Trading Plan governing this sale
10b5-1 Trading Plan regulatory
"Automatic sale pursuant to a 10b5-1 Trading Plan adopted by the Reporting Person"
A 10b5-1 trading plan is a pre-arranged strategy that allows company insiders to buy or sell company stock at set times, regardless of their current knowledge about the company's situation. It acts like a scheduled appointment for trading, helping prevent the appearance of impropriety or insider trading. This plan provides a way for insiders to sell or buy shares in a controlled, transparent manner, offering reassurance to investors about fair trading practices.
open market or private transaction market
"transaction_code_description: Sale in open market or private transaction"
Common Stock financial
"security_title: Common Stock"
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

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

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FAQ

What insider transaction did Guidewire Software (GWRE) report for its CEO?
Guidewire Software CEO Michael George Rosenbaum sold 1,200 shares of common stock. The sale occurred on 2026-08-03 at an average price of $155.92 per share in an open-market or private transaction.

At what price did the GWRE CEO sell shares on 2026-08-03?
Michael George Rosenbaum sold shares at an average price of $155.92 per share. This price applied to the sale of 1,200 shares of Guidewire Software common stock reported for the 2026-08-03 transaction.

How many Guidewire Software (GWRE) shares does the CEO hold after this sale?
After the reported sale, Michael George Rosenbaum directly holds 191,376 shares of Guidewire Software common stock. This post-transaction balance reflects his remaining direct ownership as disclosed in the filing.

Was the GWRE CEO’s share sale made under a 10b5-1 trading plan?
Yes. The sale was an automatic transaction under a 10b5-1 Trading Plan. The plan was adopted by Michael George Rosenbaum on October 14, 2025, and governed the 1,200-share sale reported.

Was the GWRE CEO’s reported sale a direct or indirect ownership transaction?
The transaction involved direct ownership of Guidewire Software common stock. The filing classifies the 1,200-share sale as directly held (ownership code "D"), not through an indirect entity or trust.
SEC Form 4
FORM 4UNITED 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*
Rosenbaum Michael George
(Last)(First)(Middle)
C/O GUIDEWIRE SOFTWARE, INC.
970 PARK PL, SUITE 200
(Street)
SAN MATEO CALIFORNIA 94403
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
Guidewire Software, Inc. [ GWRE ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chief Executive Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/03/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common Stock08/03/2026S(1)1,200D$155.92191,376D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
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 Rosenbaum08/03/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR