[144] Monolithic Power Systems, Inc. SEC Filing

Rhea-AI Filing Summary

Monolithic Power Systems, Inc. (MPWR) filed a Form 144 reporting a proposed sale of 200 shares of common stock acquired as restricted stock on 02/07/2024. The filing lists an aggregate market value of $166,000 for the shares and shows 47,892,000 shares outstanding. The sale is to be effected through Morgan Stanley Smith Barney LLC on NASDAQ with an approximate sale date of 08/12/2025. The filer reports no sales in the past three months and makes the required statement that they are not aware of undisclosed material adverse information about the issuer.

Insights

Securities Analyst

TL;DR: A small, disclosed Rule 144 filing for 200 shares valued at $166,000; not material to the company’s capitalization.

The notice documents a proposed sale under Rule 144 of 200 common shares previously issued as restricted stock. The proposed transaction is routed through Morgan Stanley Smith Barney LLC on NASDAQ with an indicated date of 08/12/2025. Given the 47,892,000 shares outstanding and the reported aggregate value, the transaction represents an immaterial transfer relative to outstanding capital and does not signal a material change to the company’s financial position.

Corporate Governance Expert

TL;DR: The filing meets disclosure requirements; statements about material information are included as required by Form 144.

The Form 144 provides the standard attestations and disclosure elements: nature of acquisition (restricted stock), acquisition date (02/07/2024), broker details, and an attestation that no undisclosed material adverse information is known. The record of no securities sold in the past three months is included. This is a routine governance disclosure with no apparent compliance gaps in the provided fields.

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	200	166000.00	47892000	08/12/2025	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	02/07/2024	Restricted Stock	ISSUER			200	02/07/2024	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)

FAQ

What does MPWR's Form 144 report?

The filing reports a proposed sale under Rule 144 of 200 common shares of Monolithic Power Systems, Inc.

How many shares and what aggregate value are listed in the MPWR Form 144?

The Form 144 lists 200 shares with an aggregate market value of $166,000.

When were the shares in the MPWR filing acquired and by what method?

The shares were acquired on 02/07/2024 as restricted stock from the issuer.

When is the approximate date of sale and which broker is handling it?

The approximate sale date is 08/12/2025 and the broker named is Morgan Stanley Smith Barney LLC.

Does the MPWR filing report any securities sold in the past three months?

No. The filing states Nothing to Report for securities sold during the past three months.