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.
Theodore Bernhard Blegen filed a Form 144 reporting a proposed sale of 3,000 common shares. The filing also lists recent dispositions by Blegen during the prior three months: 3,000 shares on 04/01/2026, 3,000 shares on 03/02/2026, 21,725 shares on 02/06/2026, and 3,000 shares on 02/02/2026, each with the dollar amounts shown in the filing.
Monolithic Power Systems reported strong Q1 2026 results, with revenue of $804.2 million, up 26.1% year over year and 7.1% sequentially. GAAP diluted EPS was $3.92, while non-GAAP diluted EPS reached $5.10, reflecting 39.5% and 26.2% year-over-year growth, respectively.
Enterprise Data revenue nearly doubled to $262.8 million, up 97.7% year over year, and Communications revenue rose 55.5% to $111.5 million. GAAP operating margin improved to 30.0% and non-GAAP operating margin was 35.8%. The company generated $250.3 million of operating cash flow and ended the quarter with $1,367.1 million in cash, cash equivalents and short-term investments.
Monolithic Power Systems reported strong Q1 2026 results, with revenue of $804.2 million, up 26.1% year over year and 7.1% sequentially. GAAP diluted EPS was $3.92, while non-GAAP diluted EPS reached $5.10, reflecting 39.5% and 26.2% year-over-year growth, respectively.
Enterprise Data revenue nearly doubled to $262.8 million, up 97.7% year over year, and Communications revenue rose 55.5% to $111.5 million. GAAP operating margin improved to 30.0% and non-GAAP operating margin was 35.8%. The company generated $250.3 million of operating cash flow and ended the quarter with $1,367.1 million in cash, cash equivalents and short-term investments.
Monolithic Power Systems is asking stockholders to vote at its virtual 2026 annual meeting on June 11, 2026. Stockholders of record at the close of business on April 15, 2026, when 49,129,267 shares of Common Stock were outstanding, may attend online, vote and submit questions.
Three main proposals will be presented: electing two Class I directors (Victor K. Lee and Jeff Zhou) for terms expiring in 2029, ratifying EY as independent registered public accounting firm for 2026, and approving on an advisory basis the compensation of named executive officers.
The proxy describes a largely independent, skills-diverse Board, a phased declassification so all directors stand for one-year terms by 2030, and a reduced 25% ownership threshold for stockholders to call special meetings. It also outlines ESG oversight through Board committees and a cross-functional steering committee.
Executive pay is heavily performance-based, with 2025 incentives tied to non-GAAP operating income, relative revenue growth and relative total stockholder return. In 2025 the company delivered revenue of $2.79 billion, up 26.4% from 2024, and increased its annual dividend to $6.24 per share, with a further raise to $8.00 per share annually approved for 2026.
Monolithic Power Systems is asking stockholders to vote at its virtual 2026 annual meeting on June 11, 2026. Stockholders of record at the close of business on April 15, 2026, when 49,129,267 shares of Common Stock were outstanding, may attend online, vote and submit questions.
Three main proposals will be presented: electing two Class I directors (Victor K. Lee and Jeff Zhou) for terms expiring in 2029, ratifying EY as independent registered public accounting firm for 2026, and approving on an advisory basis the compensation of named executive officers.
The proxy describes a largely independent, skills-diverse Board, a phased declassification so all directors stand for one-year terms by 2030, and a reduced 25% ownership threshold for stockholders to call special meetings. It also outlines ESG oversight through Board committees and a cross-functional steering committee.
Executive pay is heavily performance-based, with 2025 incentives tied to non-GAAP operating income, relative revenue growth and relative total stockholder return. In 2025 the company delivered revenue of $2.79 billion, up 26.4% from 2024, and increased its annual dividend to $6.24 per share, with a further raise to $8.00 per share annually approved for 2026.
Vanguard Capital Management reported beneficial ownership of 3,561,866 shares of Monolithic Power Systems Inc. The filing, covering holdings as of 03/31/2026, shows a 7.25% stake in the common stock. Vanguard reports sole dispositive power over 3,561,866 shares and sole voting power for 478,417 shares. The statement discloses that the position reflects holdings across Vanguard Capital Management LLC and affiliated business divisions and funds. The filing is signed by the Head of Global Fund Administration on 04/30/2026.
Vanguard Capital Management reported beneficial ownership of 3,561,866 shares of Monolithic Power Systems Inc. The filing, covering holdings as of 03/31/2026, shows a 7.25% stake in the common stock. Vanguard reports sole dispositive power over 3,561,866 shares and sole voting power for 478,417 shares. The statement discloses that the position reflects holdings across Vanguard Capital Management LLC and affiliated business divisions and funds. The filing is signed by the Head of Global Fund Administration on 04/30/2026.
Monolithic Power Systems Inc ownership reported by Vanguard Portfolio Management: 2,528,928 shares, representing 5.14% of common stock. The filing states Vanguard Portfolio Management LLC has sole dispositive power over 2,528,928 shares and sole voting power over 12,436 shares, signed 04/29/2026.
Monolithic Power Systems EVP & General Counsel Saria Tseng reported open-market sales of 8,963 shares of common stock on April 8, 2026 under a pre-arranged Rule 10b5-1 trading plan adopted on November 28, 2025. Sale prices included tranches at about $1,266.48 and $1,312.82 per share. After these transactions, she directly holds 156,983 shares and indirectly holds 1,000 shares through the C&T Discovery Foundation.
SARIA TSENG filed Form 144 notices reporting dispositions of Common shares. The filing lists four sales: 25,674 shares on 03/30/2026 for $25,943,648.15, 22,876 shares on 02/06/2026 for $26,791,540.80, 7,636 shares on 04/06/2026 for $8,918,428.78, and 1,400 shares on 04/01/2026 for $1,586,924.78.
The filing also lists issuer grants of performance shares dated 07/20/2024 (4,835), 08/07/2024 (1,313), 11/07/2024 (1,306), and 02/07/2025 (1,510).
MONOLITHIC POWER SYSTEMS INC executive Saria Tseng sold 7,636 shares of Common Stock in open-market transactions. The EVP & General Counsel executed eight planned sales on April 6, 2026 under a Rule 10b5-1 trading plan adopted on November 28, 2025, at prices such as $1,139.96, $1,170.38 and $1,179.50 per share. After these trades, Tseng holds 169,022 shares directly and 1,000 shares indirectly through C&T Discovery Foundation.