Welcome to our dedicated page for Monolithic Power SEC filings (Ticker: MPWR), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The Monolithic Power Systems, Inc. (MPS) (Nasdaq: MPWR) SEC filings page provides access to the company’s regulatory disclosures as filed with the U.S. Securities and Exchange Commission. MPS is a fabless global semiconductor company that provides high-performance, semiconductor-based power electronics solutions, and its filings offer detailed insight into its financial condition, governance, and material events.
Investors researching MPWR can review current reports on Form 8-K that MPS files to announce significant developments. Recent 8-K filings have covered topics such as quarterly financial results, the furnishing of earnings press releases and commentary, and the declaration of cash dividends on common stock. These filings often attach press releases as exhibits, providing the full text of earnings announcements and dividend details.
Other 8-K filings document corporate governance changes, including amendments to the company’s bylaws. For example, MPS has reported an amendment that reduced the ownership threshold required for stockholders to call a special meeting, and explained the Board’s considerations in making that change.
Through its SEC reports, MPS also discloses information about its operations and structure, such as its status as a fabless company and the fact that it has operations in multiple locations in the United States, Europe, and Asia without maintaining a single headquarters location. Addresses included in filings are noted as being provided to satisfy SEC requirements.
On this page, Stock Titan surfaces MPS filings as they become available from EDGAR and applies AI-powered summaries to help explain the key points of lengthy documents. Users can quickly understand the main elements of earnings-related 8-Ks, dividend announcements, and governance updates, and then drill down into the full text when more detail is needed.
Whether you are looking for MPWR’s latest results of operations, information on cash dividends, or changes to its corporate bylaws, this SEC filings page offers a structured view of Monolithic Power Systems, Inc.’s regulatory disclosures, supported by AI-generated highlights for faster analysis.
A holder of common stock has filed a Form 144 notice to potentially sell 1,286 shares, with an aggregate market value of $1,505,526.00. The proposed sale is through Morgan Stanley Smith Barney LLC on the NASDAQ, with an approximate sale date of 02/06/2026. These shares were acquired on 02/03/2026 as performance-based restricted stock units from the issuer. The notice also lists prior sales over the past three months by Saria Tseng, including 20,000 shares sold on 11/25/2025, 20,000 on 11/26/2025, and 21,590 on 02/04/2026, with disclosed gross proceeds for each transaction.
An insider has filed a Rule 144 notice to sell 1,286 shares of common stock through Morgan Stanley Smith Barney LLC on NASDAQ, with an indicated aggregate market value of
The 1,286 shares were acquired on 02/03/2026 as performance-based restricted stock units from the issuer. The filing also shows that Deming Xiao sold 21,590 common shares on 02/04/2026 for gross proceeds of
Michael Hsing has filed a notice to sell 3,082 shares of common stock under Rule 144. The planned sale will be executed through Morgan Stanley Smith Barney LLC on NASDAQ, with an aggregate market value of
The 3,082 shares were acquired on
Over the prior three months, the same seller disposed of additional common stock: 40,000 shares for gross proceeds of
Monolithic Power Systems (MPWR) shareholder Bernie Blegen filed a Form 144 notice to sell 995 shares of common stock through Morgan Stanley Smith Barney LLC on NASDAQ around 02/06/2026, with an aggregate market value of 1165304.00. The issuer reported 48710953 shares outstanding.
During the prior three months, the same seller reported additional common stock sales: 3000 shares on 12/01/2025 for gross proceeds of 2724630.00, 3000 shares on 01/02/2026 for 2821410.00, 3000 shares on 02/02/2026 for 3389280.00, and 20730 shares on 02/04/2026 for 24278167.00.
Maurice Sciammas filed a Rule 144 notice to sell 1286 shares of MPWR common stock through Morgan Stanley Smith Barney LLC on NASDAQ, with an approximate sale date of 02/06/2026. The filing notes 48710953 shares of common stock outstanding.
The 1286 shares to be sold were acquired on 02/03/2026 as performance-based restricted stock units from the issuer, with payment also dated 02/03/2026. Over the past three months, Sciammas previously sold 35000, 3976, and 21590 common shares on 11/19/2025, 11/24/2025, and 02/04/2026 for gross proceeds of 30777350.00, 3559434.48, and 25285344.00.
Monolithic Power Systems director Eileen Wynne reported receiving an annual equity award in the form of restricted stock units. On February 3, 2026, she was granted 189 shares of common stock at a price of $0 per share, as part of the independent directors’ annual RSU grant program.
The RSU grant will vest one year after the grant date, conditioned on her continued service with the company. Following this award, she beneficially owned 1,342 shares of Monolithic Power Systems common stock in direct form.
Monolithic Power Systems director Jeff Zhou received an equity grant of 189 shares of common stock on February 3, 2026. These shares were awarded at a price of $0 per share as part of the company’s annual restricted stock unit grant to each independent director.
The RSU grant will vest one year after the grant date, conditioned on Mr. Zhou’s continued service with the company. Following this grant, he beneficially owns 5,800 shares of Monolithic Power Systems common stock in direct ownership.
Monolithic Power Systems director Herbert Kuo Wei Chang received an annual equity award in the form of restricted stock units. On February 3, 2026, he was granted 189 shares of common stock at a price of $0 per share, bringing his directly held total to 615 shares.
The award represents the company’s routine annual restricted stock unit grant to each independent director. These RSUs will vest one year after the grant date, as long as Chang continues to serve on the Board of Directors during that period.
Monolithic Power Systems director Eugen J. Elmiger reported an equity award from the company. On February 3, 2026, he acquired 189 shares of common stock at a stated price of $0, reflecting an annual restricted stock unit grant to each independent director.
After this grant, Elmiger directly owned 17,402 shares of Monolithic Power Systems common stock. The RSU grant will vest one year after the grant date, provided he continues to serve the company as an independent director.
Monolithic Power Systems director Victor K. Lee reported an equity award from the company. On February 3, 2026, he acquired 189 shares of common stock at $0.00 per share in connection with the Board-approved annual restricted stock unit grant to each independent director.
The footnote explains that this RSU grant will vest one year after the grant date, as long as the director continues to serve the company. After this grant, Lee beneficially owned 28,156 shares of Monolithic Power Systems common stock in total, held directly.
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