Gregory Brown (MSI) sells 50,000 shares on Feb 23 and Feb 24

Rhea-AI Filing Summary

MSI: Gregory Q Brown reported sales of 50,000 common shares on 02/23/2026 and 50,000 common shares on 02/24/2026.

The record lists multiple earlier acquisitions of common shares by option exercise on dates including 05/05/2011, 02/01/2012, 02/13/2020, 02/11/2021, 09/30/2022, 03/13/2022, 03/31/2022, and 03/31/2023 with varying share counts; these acquisition entries are presented as background to the reported dispositions.

Insights

Corporate Governance Specialist

Two equal insider dispositions reported across consecutive trading days.

The filing shows Gregory Q Brown sold 50,000 shares on 02/23/2026 and 50,000 shares on 02/24/2026

Insider filings like this are routine disclosures of secondary market transactions. The prior lines listing option-exercise acquisition dates and amounts document how the shares were acquired; they serve as provenance rather than indicating the sales' mechanics or motivations.

Insider Transactions Analyst

Disclosures provide transaction dates and sizes but not execution venue or proceeds.

The record specifies exact sale sizes and dates but does not state whether trades were block, open-market, or part of a prearranged plan. Cash-flow treatment and sale method are not detailed in the excerpt.

Subsequent public filings or broker reports would be needed to confirm execution method and proceeds; timing beyond the two transaction dates is not provided here.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	Goldman Sachs & Co. LLC 200 West Street New York NY 10282	43200	20361456	165658912	02/25/2026	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	05/05/2011	Acquired upon option exercise	Issuer			10800	05/05/2011	Option exercise
Common	02/01/2012	Acquired upon option exercise	Issuer			10800	02/01/2012	Option exercise
Common	02/13/2020	Acquired upon option exercise	Issuer			2234	02/13/2020	Option exercise
Common	02/13/2020	Acquired upon option exercise	Issuer			8074	02/13/2020	Option exercise
Common	02/11/2021	Acquired upon option exercise	Issuer			492	02/11/2021	Option exercise
Common	02/13/2020	Acquired upon option exercise	Issuer			3968	02/13/2020	Option exercise
Common	09/30/2022	Acquired upon option exercise	Issuer			27	09/30/2022	Option exercise
Common	03/31/2023	Acquired upon option exercise	Issuer			34	03/31/2023	Option exercise
Common	03/31/2022	Acquired upon option exercise	Issuer			79	03/31/2022	Option exercise
Common	03/13/2022	Acquired upon option exercise	Issuer			5163	03/13/2022	Option exercise
Common	03/13/2023	Acquired upon option exercise	Issuer			1529	03/13/2023	Option exercise

* 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
Gregory Q Brown 500 W. Monroe Street Chicago IL 60661	Common	02/23/2026	50000	23250950
Gregory Q Brown 500 W. Monroe Street Chicago IL 60661	Common	02/24/2026	50000	23404500

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What shares did Gregory Q Brown sell for MSI?

Gregory Q Brown sold 50,000 common shares on 02/23/2026 and 50,000 common shares on 02/24/2026. The filing lists these two discrete dispositions by date and share count.

How were the sold MSI shares originally acquired?

The filing lists multiple prior acquisitions by option exercise on dates such as 05/05/2011, 02/13/2020, and 03/13/2022, showing the shares’ acquisition history as documented in the excerpt.

Does the filing state how the sales were executed or proceeds received?

The excerpt provides sale dates and share counts but does not specify execution method or who received proceeds. The filing shows transaction sizes only; details on sale venue or cash-flow treatment are not included in the provided text.

Are the acquisition entries part of the sales being reported?

The acquisition rows list option-exercise dates and share counts as background provenance. They are separate entries showing how shares were acquired and are presented alongside the reported dispositions in the excerpt.