secwatch / observer

MONOLITHIC POWER SYSTEMS INC — fact timeline

Source-grounded facts extracted from MONOLITHIC POWER SYSTEMS INC's SEC 8-K filings across all families, newest first. Each cites a verbatim SEC excerpt.

MPWR MONOLITHIC POWER SYSTEMS INC JSON
Shareholder Votes

MONOLITHIC POWER SYSTEMS INC shareholders approved Approval, on an advisory basis, of the 2025 compensation of the Company’s named executive officers at the 2026-06-11 meeting.

“Approved, on an advisory basis, the 2025 compensation of the Company’s named executive officers.”
Shareholder Votes

MONOLITHIC POWER SYSTEMS INC shareholders approved Ratification of the appointment of Ernst & Young LLP as the Company’s independent registered public accounting firm for the year ending December 31, 2026 at the 2026-06-11 meeting.

“Ratified the appointment of Ernst & Young LLP as the Company’s independent registered public accounting firm for the year ending December 31, 2026.”
Shareholder Votes

MONOLITHIC POWER SYSTEMS INC shareholders approved Election of two Class I directors at the 2026-06-11 meeting.

“Elected two Class I directors to serve for three-year terms until the Company’s annual meeting of stockholders in 2029, or until their respective successors are duly elected and qualified.”
Earnings Releases

MONOLITHIC POWER SYSTEMS INC reported the quarter ended March 31, 2026 results: revenue $804.2 million, net income $193.2 million, EPS $3.92.

“(11.2 %) 14.2 % 6.0 7.3 Total $804.2 $751.2 $637.6 7.1 % 26.1 % 100 % 100 % 2 Ongoing Business Conditions In the first quarter of 2026 , MPS achieved record quarterly revenue of $804.2 million, 7.1% higher than the fourth quarter of 2025 and 26.1% higher than revenue in the first quarter of 2025 . Our quarterly performance was the result of our continued innovation,”
Auditor Changes

MONOLITHIC POWER SYSTEMS INC reported that prior financial statements should not be relied upon.

“determined that the Company’s previously issued audited consolidated financial statements included in its annual report on Form 10-K for the fiscal year ended December 31, 2024, filed on March 3, 2025, and each of the Company’s previously issued unaudited condensed consolidated financial statements included in its quarterly reports on Form 10-Q for each of the quarterly periods in 2025 (each a “Previous Filing” and collectively “Previous Filings”), should no longer be relied upon”
Governance Changes

MONOLITHIC POWER SYSTEMS INC: Reduced the ownership threshold for stockholders to call a special meeting from at least 30% to at least 25% of outstanding shares (effective 2025-11-19).

“the Amended Bylaws reduce the ownership threshold (the “Ownership Threshold”) necessary for stockholders to call a special meeting of stockholders from at least 30% to at least 25% of the outstanding shares of capital stock of the Company entitled to vote generally for the election of directors.”
Governance Changes

MONOLITHIC POWER SYSTEMS INC: Adopted amended and restated bylaws establishing a right for stockholders to call a special meeting upon meeting certain ownership and holding period requirements, with clarifying and conforming changes (effective 2025-03-26).

“On March 26, 2025, the Board of Directors of Monolithic Power Systems, Inc. (the “Company”) approved the Amended and Restated Bylaws of Monolithic Power Systems, Inc. (the “Amended Bylaws”), which became effective immediately. The Amended Bylaws establish a right for stockholders to call a special meeting and set forth the applicable requirements and procedures in connection therewith, including the time, place, manner, and required disclosures for stockholder-called special meetings.”

James C. Moyer resigned as Director at MONOLITHIC POWER SYSTEMS INC.

“On October 21, 2024, Mr. James C. Moyer resigned from the Board of Directors (the “Board”) of Monolithic Power Systems, Inc. (the “Company”), and as a result, the Board decreased the total number of its authorized directors from eight to seven.”
Earnings Releases

MONOLITHIC POWER SYSTEMS INC reported the quarter ended March 31, 2024 results: revenue $457.9 million, net income GAAP net income was $92.5 million and $1.89 per diluted share, EPS $1.89 per diluted share.

“Monolithic Power Systems, Inc. (“MPS”) (Nasdaq: MPWR), a fabless global company that provides high-performance, semiconductor-based power electronics solutions, today announced financial results for the quarter ended March 31, 2024 . ● Revenue was $457.9 million for the quarter ended March 31, 2024 , a 0.9% increase from $454.0 million for the quarter ended December 31, 2023 and a 1.5% increase from $451.1 million for the quarter ended March 31, 2023 .”
Earnings Releases

MONOLITHIC POWER SYSTEMS INC reported the nine months ended September 30, 2023 results: revenue $1,367.1 million.

“deferred compensation plan expense and $3.2 million for related tax effects. The financial results for the nine months ended September 30, 2023 were as follows: ● Revenue was $1,367.1 million for the nine months ended September 30, 2023, a 2.5% increase from $1,334.1 million for the nine months ended September 30, 2022. ● GAAP gross margin was 56.3% for the nine”
Earnings Releases

MONOLITHIC POWER SYSTEMS INC reported the quarter ended September 30, 2023 results: revenue $474.9 million, net income $121.2 million and $2.48 per diluted share, EPS $2.48 per diluted share.

“financial results for the quarter and nine months ended September 30, 2023. The financial results for the quarter ended September 30, 2023 were as follows: ● Revenue was $474.9 million for the quarter ended September 30, 2023, a 7.6% increase from $441.1 million for the quarter ended June 30, 2023 and a 4.1% decrease from $495.4 million for the quarter ended”
Earnings Releases

MONOLITHIC POWER SYSTEMS INC reported financial results for Q2 2023.

“Revenue was $441.1 million for the quarter ended June 30, 2023, a 2.2% decrease from $451.1 million for the quarter ended March 31, 2023 and a 4.3% decrease from $461.0 million for the quarter ended June 30, 2022.”
Shareholder Votes

MONOLITHIC POWER SYSTEMS INC shareholders approved Approval of the Amended 2004 ESPP at the 2023-06-15 meeting.

“Approval of the Amended 2004 ESPP: For Against Abstain Broker Non-Votes 42,862,054 249,245 5,363 1,317,164”
Shareholder Votes

MONOLITHIC POWER SYSTEMS INC shareholders approved Recommendation, on an advisory basis, the frequency of future advisory votes on the compensation of the Company’s named executive officers at the 2023-06-15 meeting.

“Recommendation, on an advisory basis, the frequency of future advisory votes on the compensation of the Company’s named executive officers: 1 Year 2 Years 3 Years Abstain Broker Non-Votes 42,827,411 4,408 270,065 14,778 1,317,164”
Shareholder Votes

MONOLITHIC POWER SYSTEMS INC shareholders approved Approval, on an advisory basis, of the 2022 compensation of the Company’s named executive officers at the 2023-06-15 meeting.

“Approval, on an advisory basis, of the 2022 compensation of the Company’s named executive officers: For Against Abstain Broker Non-Votes 24,509,415 18,540,210 67,037 1,317,164”
Shareholder Votes

MONOLITHIC POWER SYSTEMS INC shareholders approved Ratification of the appointment of Ernst & Young LLP as the Company’s independent registered public accounting firm for the year ending December 31, 2023 at the 2023-06-15 meeting.

“Ratification of the appointment of the Company’s independent registered public accounting firm: For Against Abstain Broker Non-Votes 44,390,466 38,444 4,916 0”
Shareholder Votes

MONOLITHIC POWER SYSTEMS INC shareholders approved Election of two Class I directors at the 2023-06-15 meeting.

“Election of two Class I directors: Nominee For Withheld Broker Non-Votes Victor K. Lee 33,535,506 9,581,156 1,317,164 James C. Moyer 33,654,368 9,462,294 1,317,164”
Earnings Releases

MONOLITHIC POWER SYSTEMS INC reported the quarter ended March 31, 2023 results: revenue $451.1 million, net income $109.8 million, EPS $2.26 per diluted share. Guidance initiated.

“Revenue was $451.1 million for the quarter ended March 31, 2023, a 1.9% decrease from $460.0 million for the quarter ended December 31, 2022 and a 19.4% increase from $377.7 million for the quarter ended March 31, 2022.”
Earnings Releases

MONOLITHIC POWER SYSTEMS INC reported the year ended December 31, 2022 results: revenue $1,794.1 million.

“● Revenue was $1,794.1 million for the year ended December 31, 2022, a 48.5% increase from $1,207.8 million for the year ended December 31, 2021.”
Earnings Releases

MONOLITHIC POWER SYSTEMS INC reported the quarter ended December 31, 2022 results: revenue $460.0 million, net income $119.1 million, EPS $2.45 per diluted share.

“14, 2023 to all stockholders of record as of the close of business on March 31, 2023. The financial results for the quarter ended December 31, 2022 are as follows: ● Revenue was $460.0 million for the quarter ended December 31, 2022, a 7.1% decrease from $495.4 million for the quarter ended September 30, 2022 and a 36.7% increase from $336.5 million for the quarter”

Eileen Wynne was appointed as Director at MONOLITHIC POWER SYSTEMS INC.

“On February 7, 2023, the Board of Directors (the “Board”) of the Company appointed Eileen Wynne to serve as a member of the Board, effective immediately.”
Earnings Releases

MONOLITHIC POWER SYSTEMS INC reported the nine months ended September 30, 2022 results: revenue $1,334.1 million.

“net deferred compensation plan expense and $1.8 million for related tax effects. The financial results for the nine months ended September 30, 2022 are as follows: ● Revenue was $1,334.1 million for the nine months ended September 30, 2022, a 53.1% increase from $871.3 million for the nine months ended September 30, 2021. ● GAAP gross margin was 58.5% for the nine months”
Earnings Releases

MONOLITHIC POWER SYSTEMS INC reported the quarter ended September 30, 2022 results: revenue $495.4 million, net income $124.3 million, EPS $2.57 per diluted share.

“today announced financial results for the quarter ended September 30, 2022. The financial results for the quarter ended September 30, 2022 are as follows: ● Revenue was $495.4 million for the quarter ended September 30, 2022, a 7.5% increase from $461.0 million for the quarter ended June 30, 2022 and a 53.1% increase from $323.5 million for the quarter ended”

Facts are extracted by an LLM and gated to those whose source quote is present verbatim in the filing text. Coverage is best-effort while backfill and monitoring mature; this is not yet a full-market index. See methodology.