Proposed MMSI (MMSI) insider stock sale disclosed in Form 144 filing

Rhea-AI Filing Summary

An affiliate of MMSI has filed a notice of proposed sale of common stock under Form 144. The filing lists up to 21,449 shares of common stock to be sold through Morgan Stanley Smith Barney LLC Executive Financial Services, with trading expected on the NASDAQ on or after August 4, 2026.

The shares relate to equity awards described as Performance Shares and Restricted Stock with grant dates in 2025 and 2026 and individual award amounts of 7,278, 1,027, 10,941, 1,175, and 1,028 shares, respectively.

Key Figures

Proposed shares to be sold: 21,449 shares Proposed sale date: 08/04/2026 Performance Shares grant 1: 7,278 shares +4 more

7 metrics

Proposed shares to be sold 21,449 shares Common stock covered by Form 144 notice

Proposed sale date 08/04/2026 Earliest date shares may be sold on NASDAQ

Performance Shares grant 1 7,278 shares Performance Shares with grant date 02/27/2025

Restricted Stock grant 1 1,027 shares Restricted Stock with grant date 03/04/2025

Performance Shares grant 2 10,941 shares Performance Shares with grant date 02/26/2026

Restricted Stock grant 2 1,175 shares Restricted Stock with grant date 02/28/2026

Restricted Stock grant 3 1,028 shares Restricted Stock with grant date 03/04/2026

Key Terms

Performance Shares, Restricted Stock, Executive Financial Services

3 terms

Performance Shares financial

"Common | 02/27/2025 | Performance Shares | Issuer"

Performance shares are a type of company stock given to executives or employees that only become theirs if the company meets specific goals, like hitting certain profits or growth targets. They motivate leaders to work toward the company’s success, because their additional shares depend on achieving these results.

Restricted Stock financial

"Common | 03/04/2025 | 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.

Executive Financial Services financial

"Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza"

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

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Available on EDGAR 08/04/2026 - 04:11 PM Accepted by SEC EDGAR 08/04/2026 - 04:10 PM Learn about SEC filing dates

FAQ

What does the Form 144 filing for MMSI disclose?

The Form 144 indicates a proposed sale of 21,449 shares of MMSI common stock through Morgan Stanley Smith Barney LLC, with trading expected on or after August 4, 2026 on the NASDAQ market.

How many MMSI shares are proposed to be sold in this Form 144?

The filing covers a proposed sale of up to 21,449 shares of MMSI common stock. This represents a potential resale by an affiliate and does not itself execute any transactions; it provides advance notice of possible market sales.

When may the MMSI shares covered by this Form 144 be sold?

The common shares may be sold on or after August 4, 2026. The filing specifies NASDAQ as the trading market and uses Morgan Stanley Smith Barney LLC Executive Financial Services as the broker for the potential sales.

What types of MMSI equity awards are linked to the proposed share sale?

The notice references both Performance Shares and Restricted Stock awards. These awards have grant dates in 2025 and 2026 and award sizes ranging from 1,027 to 10,941 shares that may relate to the planned resale.

Which broker is handling the proposed MMSI Form 144 stock sale?

The proposed sale is listed under Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004, and identifies NASDAQ as the market for potential transactions.

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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	21449	1823165.00	59710420	08/04/2026	NASDAQ

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	02/27/2025	Performance Shares	Issuer			7278	02/27/2025	Not Applicable
Common	03/04/2025	Restricted Stock	Issuer			1027	03/04/2025	Not Applicable
Common	02/26/2026	Performance Shares	Issuer			10941	02/26/2026	Not Applicable
Common	02/28/2026	Restricted Stock	Issuer			1175	02/28/2026	Not Applicable
Common	03/04/2026	Restricted Stock	Issuer			1028	03/04/2026	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

Nothing to Report

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)