Business Context and Reporting Period
Company: Monolithic Power Systems, Inc. (MPWR)
Filing Type: Form 8-K (Current Report)
Date of Report: February 26, 2026
Subject: Non-reliance on previously issued financial statements and restatement of results for fiscal years 2024 and 2025 due to an unintentional accounting error regarding deferred income taxes associated with a one-time foreign tax incentive.
Key Financial Metrics and Restatement Impact
The error is non-cash in nature and does not impact revenue, operating expenses, or non-GAAP metrics. It specifically adjusts income tax benefits/expenses and deferred taxes.
Fiscal Year Ended December 31, 2024 (Restated)
| Metric | As Previously Reported | Impact of Restatement | As Restated |
|---|---|---|---|
| Revenue | $2,207.1 million | $0 | $2,207.1 million |
| Net Income | $1,786.7 million | ($194.6 million) | $1,592.1 million |
| Diluted EPS | $36.59 | ($3.99) | $32.60 |
| Non-GAAP Net Income | $689.8 million | $0 | $689.8 million |
Fiscal Year Ended December 31, 2025 (Restated)
| Metric | As Previously Reported | Impact of Restatement | As Restated |
|---|---|---|---|
| Revenue | $2,790.5 million | $0 | $2,790.5 million |
| Net Income | $615.9 million | $5.6 million | $621.5 million |
| Diluted EPS | $12.75 | $0.11 | $12.86 |
| Non-GAAP Net Income | $858.4 million | $0 | $858.4 million |
Material Changes Versus Prior Period
- 2024 Adjustment: The restatement decreases the 2024 income tax benefit, net by approximately $195 million, reducing reported net income and EPS significantly. This corrects the prior year's accounting for deferred income taxes related to a foreign tax incentive.
- 2025 Adjustment: The restatement results in a $5.5 million decrease to income tax expense, net, and a corresponding $5.5 million increase to net income for the year ended December 31, 2025.
- Non-GAAP Stability: Non-GAAP net income and per-share amounts remain unchanged for both periods as the excluded tax benefit was already removed from non-GAAP calculations in prior reports.
Guidance, Outlook, and Risks
- Outlook: Management states the error does not result in any changes to the business outlook for the quarter ending March 31, 2026, previously disclosed on February 5, 2026.
- Management Commentary: The error was discovered during the preparation of the 2025 Form 10-K. It involved the accounting for deferred income taxes associated with a one-time tax incentive granted by a foreign jurisdiction. The company engaged third-party tax service providers for the original determination.
- Contingencies: The company is restating the 2024 audited annual financial statements and 2025 interim financial statements. These will be included in the 2025 Form 10-K filed immediately following this 8-K.
- Risks: The filing includes a Safe Harbor statement citing risks related to global economic uncertainty, tariffs, export controls (particularly in China), supply chain constraints, and the company's ability to remediate the material weakness identified.
Investor Verification Checklist
- Verify the upcoming 2025 Form 10-K filing for the full restated financial statements.
- Confirm that the $195 million adjustment to 2024 deferred taxes does not indicate broader issues with foreign tax compliance or audit findings.
- Review the company's internal controls assessment regarding the material weakness identified in connection with this error.
- Monitor future earnings releases to ensure the non-GAAP reconciliation continues to exclude the specific foreign tax benefit as described.
- Assess the impact of the restated 2024 EPS ($32.60) on any performance-based compensation or analyst models.