Form 144: Proposed sale of 1,200 restricted GWRE shares

Morgan Stanley Smith Barney LLC submitted a Form 144 notice reporting a proposed sale of 1,200 shares of Common Stock classified as Restricted Stock (date 03/15/2023).

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC submitted a Form 144 notice reporting a proposed sale of 1,200 shares of Common Stock classified as Restricted Stock (date 03/15/2023). The filing lists multiple recent dispositions by an owner identified as "MIKE," including a 03/17/2026 sale of 4,737 shares for $776,194.87 and other weekly sales in early 2026.

Insights

Securities Compliance Counsel

Form 144 is a notice of intent to sell restricted securities under Rule 144.

This filing records a broker-dealer notification of a proposed sale of 1,200 restricted shares and enumerates multiple sales by the holder in early 2026. The notice itself does not indicate completion or timing of the proposed sale.

Review the broker and reporting party records for settlement details; subsequent Form 4s or broker statements would show completed transactions.

Key Figures

Proposed sale: 1,200 shares Prior disposition example: 4,737 shares Prior disposition example: 1,200 shares +2 more

5 metrics

Proposed sale 1,200 shares Restricted Common Stock, date 03/15/2023

Prior disposition example 4,737 shares Sold 03/17/2026 for $776,194.87

Prior disposition example 1,200 shares Sold 03/09/2026 for $199,608.00

Sample sale proceeds $776,194.87 Proceeds on 03/17/2026 sale of 4,737 shares

Sample sale proceeds $199,608.00 Proceeds on 03/09/2026 sale of 1,200 shares

Key Terms

Restricted Stock, Form 144, Broker-dealer

3 terms

Restricted Stock regulatory

"Common | 03/15/2023 | Restricted Stock | ISSUER"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Form 144 regulatory

"Filer Information | 144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Broker-dealer financial

"Common | Morgan Stanley Smith Barney LLC Executive Financial Services"

A broker-dealer is a licensed firm or individual that both executes trades on behalf of clients (acting as a broker) and buys or sells securities for its own account (acting as a dealer). Investors care because broker-dealers provide the plumbing of markets — they place orders, hold or move cash and securities, offer research or advice, and their stability and fees directly affect trade execution, costs, and the safety of client funds; think of them as a combined travel agent and taxi for your investments.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filed for GWRE mean?

Form 144 is a broker notice that a holder intends to sell restricted stock. The filing reports a proposed sale of 1,200 shares of restricted Common Stock with a transaction date listed as 03/15/2023, and shows multiple recent dispositions by the same holder.

How many shares are listed for proposed sale in this GWRE Form 144?

The filing lists a proposed sale of 1,200 shares of restricted Common Stock. The entry labels the securities as Restricted Stock with the recorded date 03/15/2023 in the excerpt provided.

Does the filing show completed sales for the holder in recent months?

Yes. The filing lists multiple past sales by the reporting holder ("MIKE") in early 2026, including a 03/17/2026 sale of 4,737 shares for $776,194.87 and other weekly sales of 1,200 shares with listed proceeds.

Who is the broker handling the transaction noted in the Form 144?

The broker shown is Morgan Stanley Smith Barney LLC at 1 New York Plaza, 8th Floor. The filing lists the broker-dealer name and NYSE as the market identifier in the provided excerpt.

Do these Form 144 entries confirm shares were sold on specific dates?

The document records dates and dollar amounts for prior dispositions in the excerpt (for example, 03/09/2026 sale of 1,200 shares for $199,608.00), indicating reported past sales; settlement confirmation would appear in trade confirmations or subsequent filings.

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

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Accepted by SEC EDGAR 05/11/2026 - 04:12 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001784996
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	GUIDEWIRE SOFTWARE, INC.
SEC File Number	001-35394
Address of Issuer	970 Park Place, Suite 200 San Mateo CALIFORNIA 94403
Phone	(650) 357-9100
Name of Person for Whose Account the Securities are To Be Sold	MIKE ROSENBAUM
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	1200	163656.00	84657470	05/11/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	03/15/2023	Restricted Stock	ISSUER			1200	03/15/2023	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
MIKE ROSENBAUM 970 Park Place, Suite 200 San Mateo CA 94403	Common	05/04/2026	1200	170292.00
MIKE ROSENBAUM 970 Park Place, Suite 200 San Mateo CA 94403	Common	04/27/2026	1200	165708.00
MIKE ROSENBAUM 970 Park Place, Suite 200 San Mateo CA 94403	Common	04/20/2026	1200	167700.00
MIKE ROSENBAUM 970 Park Place, Suite 200 San Mateo CA 94403	Common	04/13/2026	1200	142524.00
MIKE ROSENBAUM 970 Park Place, Suite 200 San Mateo CA 94403	Common	04/06/2026	1200	181368.00
MIKE ROSENBAUM 970 Park Place, Suite 200 San Mateo CA 94403	Common	03/30/2026	1200	174888.00
MIKE ROSENBAUM 970 Park Place, Suite 200 San Mateo CA 94403	Common	03/23/2026	1200	186672.00
MIKE ROSENBAUM 970 Park Place, Suite 200 San Mateo CA 94403	Common	03/17/2026	4737	776194.87
MIKE ROSENBAUM 970 Park Place, Suite 200 San Mateo CA 94403	Common	03/16/2026	1200	192000.00
MIKE ROSENBAUM 970 Park Place, Suite 200 San Mateo CA 94403	Common	03/09/2026	1200	199608.00
MIKE ROSENBAUM 970 Park Place, Suite 200 San Mateo CA 94403	Common	03/02/2026	1200	172644.00
MIKE ROSENBAUM 970 Park Place, Suite 200 San Mateo CA 94403	Common	02/23/2026	1200	150600.00
MIKE ROSENBAUM 970 Park Place, Suite 200 San Mateo CA 94403	Common	02/17/2026	1200	152400.00

144: Remarks and Signature

Remarks
Date of Notice	05/11/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	10/14/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Michael George Rosenbaum
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)