Monolithic Power Systems filings document regulatory disclosures for a fabless semiconductor company focused on power electronics solutions. Its 8-K filings furnish quarterly and annual operating results, earnings commentary, cash dividend declarations, officer-transition disclosures, and other material events tied to financial reporting.
The filing record also includes proxy materials covering annual meeting matters, director and executive compensation disclosures, and stockholder voting procedures. Other filings describe governance amendments such as bylaw changes affecting special-meeting rights, and reporting-controls matters including non-reliance determinations and restatement-related disclosures for previously issued financial statements.
A holder of common stock of an issuer with shares listed on NASDAQ submitted a Form 144 indicating an intention to sell securities through UBS Financial Services Inc. The notice includes a common stock entry with figures of 142,000 and 49,130,000, and references RSU-related entries dated February 6, 2025 and February 4, 2026 with quantities of 91 and 9, respectively.
Maurice Sciammas, EVP, WW Sales & Marketing of Monolithic Power Systems, reported an internal bona fide gift of 25,000 shares of common stock on 2026-08-04, moving them from direct ownership to two GRATs where he serves as trustee. No funds were exchanged and no sale occurred. Following the transfer he holds 126,644 shares directly and 36,062 shares indirectly through the GRATs, in addition to other indirect family trust holdings.
Monolithic Power Systems, Inc. reports that Interim CFO Robert W. Dean II sold 105 shares of Common Stock on 2026-08-05 at $1,344.27 per share in an open market or private transaction. After this sale, he holds 7,132 shares directly and 65 shares indirectly, held by Parent & Daughter.
Monolithic Power Systems executive Maurice Sciammas, EVP, WW Sales & Marketing, reported the sale of 30 shares of Common Stock on 2026-08-03 at $1343.9400 per share. The transaction was executed indirectly by the Clement Sciammas Trust under a Rule 10b5-1 trading plan adopted on 11/19/2025, leaving that trust with 1119 shares. Sciammas also reports 151644 shares held directly and additional indirect holdings across multiple family trusts and accounts.
Robert Dean filed a notice of proposed sale of Monolithic Power Systems (MPWR) common stock. The filing lists 105 shares of common stock to be sold through Morgan Stanley Smith Barney LLC on or after August 5, 2026 on NASDAQ. It also reports sales of MPWR common stock during the prior three months, including 22 shares on May 26, 2026 for $35,882.23 and 4 shares on May 18, 2026 for $6,253.12.
Monolithic Power Systems reported record Q2 2026 revenue of $980.6 million, 21.9% above Q1 2026 and 47.6% above Q2 2025. GAAP gross margin was 55.2% and operating margin 31.0%. GAAP net income reached $257.3 million with diluted EPS of $5.22, while non-GAAP net income was $320.1 million with diluted EPS of $6.50.
Growth was broad-based, led by Enterprise Data revenue of $380.6 million, up 44.8% sequentially and 164.3% year over year, with all end markets growing sequentially. Cash, cash equivalents and short-term investments totaled $1,413.8 million, and Q2 operating cash flow was $227.9 million. Internal inventories were $675.8 million, with days of inventory of 140 days based on current-quarter revenue, improving from 157 days in Q1 2026.
For Q3 2026, the company forecasts revenue between $1,140 million and $1,160 million, GAAP gross margin of 55.2%–55.8% and non-GAAP gross margin of 55.4%–56.0%. The board authorized an additional $500 million for stock repurchases, bringing the current authorization to $1 billion.
DEAN ROBERT W II reported acquisition or exercise transactions in this Form 4 filing.
Monolithic Power Systems interim CFO Robert W. Dean II reported an equity award of 1,359 shares of common stock linked to market-based restricted stock units granted in 2023. The Compensation Committee certified achievement of the three-year performance goals on July 25, 2026, and the shares will vest in three equal annual installments from July 25, 2027 through July 25, 2029. Following this grant, Dean beneficially owns 7,237 shares directly and 65 shares indirectly held by a Parent & Daughter account.
Maurice Sciammas, EVP, WW Sales & Marketing of Monolithic Power Systems, reported selling 15,000 shares of common stock on July 15, 2026 in 18 transactions under a Rule 10b5-1 trading plan adopted on November 24, 2025. Footnotes state each line’s price is a weighted average of multiple trades, with underlying trade prices ranging from $1,311.45 to $1,406.04 per share. He also reports various indirect holdings through family trusts and related accounts.
MPWR shareholder Maurice Sciammas filed a notice to sell 15000 shares of common stock through Morgan Stanley Smith Barney LLC Executive Financial Services, referencing a valuation of 20245944.00 and 49130000 shares outstanding, with an approximate sale date of 07/15/2026 on NASDAQ.
The notice also lists prior sales over the preceding three months, including 12000 shares on 05/15/2026 for 18736864.80, and smaller transactions of 380 shares on 05/05/2026 and 30-share lots on 05/04/2026, 06/01/2026, and 07/01/2026.