CEO sold ~$14.8M of Monolithic Power Systems
Scheduled in advanceLoading…
Monolithic Power Systems
MPWR · NASDAQ · Semiconductors
MPWR · NASDAQ · Semiconductors
Semiconductors company based in Kirkland, Washington.
Last close, Oct 1, 2026
$1,360.97
Adjusted for splits and dividends
Last 12 months
+48.6%
S&P 500 +14.3% over the same dates
Market value
$66.9B
Last close × shares outstanding
Bets against the stock: 1.91M shares sold short (3.9% of shares outstanding), -4.6% vs the previous count, 3.1 days of normal trading to buy them back. FINRA, as of Sep 15, 2026.
Insiders buying, last 90 days
None
No open-market purchases reported
Insiders selling, last 90 days
32 sales
$61M sold. Insiders sell for many reasons.
New federal contracts, 12 months
None
Nothing found for this company
Revenue, fiscal 2025
$2.79B
+26.4% vs the year before
Net income, fiscal 2025
$621M
As reported in the annual filing
Shares outstanding
49.1M
As of Jul 29, 2026
In fiscal 2025 the company spent $6.6M buying back its own shares and $285M on dividends. Cash actually paid, from its cash-flow statement.
CEO sold ~$14.8M of Monolithic Power Systems
Scheduled in advanceCEO sold ~$8.54M of Monolithic Power Systems
Scheduled in advanceCEO sold ~$7.77M of Monolithic Power Systems
Scheduled in advanceCEO sold ~$2.82M of Monolithic Power Systems
Scheduled in advancePrices are daily closes from Polygon.io. Company figures come from its own SEC filings. Past moves are not a forecast. OQRO reports what was filed and never tells you what to buy or sell.
A securities lawsuit naming the company as a defendant was filed on Feb 4, 2025 in the U.S. District Court, W.D. Washington. A filing is an allegation, not a finding.
Waterford Township General Employees Retirement System v. Monolithic Power Systems Inc, 2:25-cv-00220Federal civil cases with nature of suit 850 (securities) filed in the last 3 years where the company is the first named defendant, from court records on CourtListener (Free Law Project). Coverage of court records is not complete, and shareholder derivative suits are not included.
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Anyone owning more than 5% must file within days. Structured filings exist since December 2024, so older stakes that were never amended may be missing.
Short sale volume: 53.8% of the volume reported to FINRA over the last 20 trading days was marked short, below its 1-year average of 56.5%. FINRA daily files, to Oct 2, 2026.
Short sale volume is not short interest. It counts trades marked short, including market makers selling short to fill buy orders, so it is a share of daily trading, not a count of bets against the stock.
Notice of Receipt of Complaint; Solicitation of Comments Relating to the Public Interest
Notice · International Trade Commission
Certain Power Converters, Circuit Board Assemblies, and Computing Systems Containing the Same; Notice of Institution of Investigation
Notice · International Trade Commission
Notice of Receipt of Complaint; Solicitation of Comments Relating to the Public Interest
Notice · International Trade Commission
Federal rules, proposed rules and notices that name the company by its legal name, from the Federal Register. Being named is not the same as being the target of a rule.
19 certified in FY2026 Q3, vs 15 a year earlier. 19 positions in total, median offered wage $160K a year.
Labor condition applications for H-1B workers certified by the Department of Labor, counted by decision date (FY2026 Q3: Apr 1, 2026 to Jun 30, 2026, the latest quarter published). A certified application is a step before a visa petition, not a hire or a visa, and one application can cover several positions. Matched by employer ID number or name.
Last 12 months, adjusted daily closes
Adjusted close went from $915.87 on Oct 1, 2025 to $1,360.97 on Oct 1, 2026 (+48.6%). Disclosed trades in the last 12 months: 0 insider purchases, 317 insider sales (189 under pre-arranged plans), 4 Congress purchases, 2 Congress sales.
Past financial statements can no longer be relied on
6 insiders sold ~$294M in the 60 days before
8-K on sec.govTop officer leaving
“(b) Departure of Chief Financial Officer On February 3, 2026, Bernie Blegen informed the Company’s Board of Directors (the “Board”) of his intention to retire from his position as Executive Vice President and Chief Financial Officer.”
2 insiders sold ~$7.72M in the 60 days before
8-K on sec.govFrom the company's 8-K, 10-K and 10-Q filings over the last two years. A flag is a reason to read the filing, not a verdict: many departures are planned retirements and many listing notices are resolved. Insider sales are shown for timing only; they are separate filings.