# Monolithic Power Systems (MPWR): recent events ## Filings that contain financial statements - Form 8-K filed October 29, 2026 (accession 0001628280-26-068202): Exhibit 99.1 earnings commentary for the quarter ended September 30, 2026, with condensed consolidated balance sheets, statements of operations and the GAAP to non-GAAP net income reconciliation (three and nine months). - Form 8-K filed July 30, 2026 (accession 0001628280-26-051029): Exhibit 99.1 for the quarter ended June 30, 2026, with the same condensed statements (three and six months). - Form 8-K filed April 30, 2026 (accession 0001437749-26-014182): Exhibit 99.1 for the quarter ended March 31, 2026, with the same condensed statements. - Form 8-K filed February 27, 2026 (accession 0001437749-26-006112): restated income statement summary for the quarter and year ended December 31, 2024. - Form 8-K filed February 5, 2026 (accession 0001437749-26-003191): earnings releases for the quarter and year ended December 31, 2025. The company later said these should no longer be relied upon (see the restatement entry below). ## Earnings and guidance - **October 29, 2026 (0001628280-26-068202), third quarter 2026.** Revenue was $1,202.4 million, up 22.6% from the second quarter and 63.1% from $737.2 million a year earlier. GAAP gross margin was 55.4%, GAAP net income $271.1 million ($5.51 per diluted share) and non-GAAP net income $402.7 million ($8.19 per diluted share). Enterprise Data revenue was $506.7 million, up 164.6% year over year. Operating cash flow was $289.9 million, and cash and short-term investments were $1,091 million. Fourth quarter guidance: revenue of $1,315 million to $1,385 million, GAAP gross margin of 55.2% to 55.8%, GAAP operating expenses of $334.0 million to $342.0 million. - **July 30, 2026 (0001628280-26-051029), second quarter 2026.** Revenue was $980.6 million (up 47.6% year over year), GAAP net income $257.3 million ($5.22 per diluted share). This exceeded the prior guidance of $890 million to $910 million. Third quarter guidance was revenue of $1,140 million to $1,160 million; actual third quarter revenue came in above that range. - **April 30, 2026 (0001437749-26-014182), first quarter 2026.** Revenue was $804.2 million (up 26.1% year over year), GAAP net income $193.2 million ($3.92 per diluted share), above the February guidance of $770.0 million to $790.0 million. Second quarter guidance was $890 million to $910 million. - **February 5, 2026 (0001437749-26-003191), fourth quarter and full year 2025.** Fourth quarter revenue was reported at $751.2 million, up 20.8% from $621.7 million a year earlier. First quarter 2026 guidance was $770.0 million to $790.0 million. ## Restatement and non-reliance - **February 27, 2026 (0001437749-26-006112), Item 4.02.** On February 26, 2026 the Audit Committee concluded that the audited 2024 financial statements and the 2025 quarterly statements should no longer be relied upon, as should the February 5, 2026 earnings release, because of an error in accounting for deferred income taxes tied to a one-time foreign tax incentive. The restatement reduced 2024 income tax benefit and net income by about $195 million: 2024 net income was restated to $1,592.1 million from $1,786.7 million, and diluted EPS to $32.60 from $36.59. The company described the error as non-cash and said it did not affect revenue or non-GAAP measures or the first quarter outlook. The restated figures were to be included in the 2025 Form 10-K filed immediately afterward (accession 0001437749-26-006113). The Form 10-Q for the quarter ended September 30, 2026 (accession 0001628280-26-069440) reports that the related material weakness in internal control over deferred income taxes was still being remediated and that disclosure controls were not effective. ## Management changes - **February 5, 2026 (0001437749-26-003191), Item 5.02.** Chief Financial Officer Bernie Blegen announced his retirement, effective on the filing of the 2025 Form 10-K. Corporate Controller Rob Dean was named interim CFO. - **October 29, 2026 (0001628280-26-068202), Item 5.02.** On October 27, 2026 the Board appointed Tony Balow (previously Vice President of Finance) as Vice President, Chief Financial Officer, and Robert Dean as Vice President, Chief Accounting Officer, both effective immediately. ## Capital returns - **Dividends.** The quarterly dividend was raised from $1.56 to $2.00 per share on February 5, 2026 (0001437749-26-003191). Further $2.00 dividends were declared on June 12, 2026 (0001628280-26-042820; paid July 15) and September 10, 2026 (0001628280-26-061318; record date September 30, paid October 15). The December 12, 2025 dividend was $1.56 (0001437749-25-037726). - **Buybacks.** The July 30, 2026 release (0001628280-26-051029) announced an additional $500 million repurchase authorization, bringing the total to $1 billion. The company repurchased $453.4 million of stock in the third quarter of 2026, against $4.0 million in the second quarter. The October 29, 2026 release (0001628280-26-068202) announced another $500 million authorization in October, bringing the total current authorization to $1 billion after third-quarter repurchases. ## Governance and legal - **November 19, 2025 (0001437749-25-035995).** Amended bylaws lowered the stockholder threshold to call a special meeting from 30% to 25%, after a non-binding 10% proposal passed at the 2025 annual meeting. - **June 11, 2026 (0001628280-26-042820).** At the annual meeting, stockholders elected Victor K. Lee and Jeff Zhou as Class I directors, ratified Ernst & Young LLP, and approved executive compensation on an advisory basis. - The Form 10-Q (0001628280-26-069440) describes a securities class action filed February 4, 2025 (W.D. Wash.) and related shareholder derivative suits, one of them filed June 16, 2026. The company calls the suit meritless and intends to defend it. No outcome has been reported. ## Not reflected in these filings No acquisition, divestiture, debt issuance, stock split or guidance cut appears in the 8-Ks reviewed.