Monolithic Power Systems Announces CFO Transition

Monolithic Power Systems (Nasdaq: MPWR) announced that Executive Vice President and CFO Bernie Blegen will retire effective after MPS files its 2025 annual report on Form 10-K; he will remain to support a smooth transition.

Rhea-AI Summary

Monolithic Power Systems (Nasdaq: MPWR) announced that Executive Vice President and CFO Bernie Blegen will retire effective after MPS files its 2025 annual report on Form 10-K; he will remain to support a smooth transition.

Upon his retirement, Corporate Controller Rob Dean will serve as interim CFO; Mr. Dean has been Corporate Controller for nine years. The company highlighted Blegen's tenure since 2011 and his decade as CFO during a period of above-market growth.

Positive

• CFO transition planned with overlap to support continuity
• Interim CFO is an internal candidate with nine years at company
• Outgoing CFO credited with above-market growth during ten-year tenure

Negative

• Permanent CFO not yet named, creating near-term leadership uncertainty

Argus Feb 6 session

+6.39% close to close Open Argus

Details

News Market Reaction – MPWR

On Feb 6, the first trading day after this news, MPWR closed 6.39% above the previous close.

Data tracked by StockTitan Argus for the Feb 6 session.

Key Figures

Q3 2025 revenue: $737.2M GAAP diluted EPS: $3.71 Non-GAAP diluted EPS: $4.73 +5 more

Q3 2025 revenue

$737.2M

Quarter ended September 30, 2025

GAAP diluted EPS

$3.71

Q3 2025

Non-GAAP diluted EPS

$4.73

Q3 2025

Cash & investments

$1,269.5M

End of Q3 2025

Revenue guidance

$730M–$750M

Q4 2025 guidance range

CFO tenure

10 years

Bernie Blegen as CFO

Corporate Controller tenure

9 years

Rob Dean as Corporate Controller

FMR ownership

3,977,007.87 shares (8.3%)

Beneficial stake as of Dec 31, 2025

Historical Context

5 past events · Latest: Jan 14

5 events

1. Jan 14

   Earnings date set

   24h Move

   +0.0%

   Announced timing and access details for Q4 and full-year 2025 results.

2. Dec 12

   Dividend declaration

   24h Move

   +0.3%

   Declared $1.56 per share cash dividend for Q4 2025 holders.

3. Oct 30

   Earnings commentary

   24h Move

   -0.6%

   Detailed Q3 2025 revenue growth, margins, cash position, and Q4 guidance.

4. Oct 30

   Earnings results

   24h Move

   -0.6%

   Reported Q3 2025 results with strong YoY growth and EPS performance.

5. Oct 09

   Earnings call plan

   24h Move

   -7.6%

   Scheduled Q3 2025 earnings release and Q&A webcast logistics.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

fabless, semiconductor-based, form 10-k, schedule 13g, +4 more

8 terms

fabless technical

"MPS, a fabless global company that provides high-performance..."

A fabless company designs and sells semiconductor chips but does not own the factories that make them; instead it hires specialized manufacturers to produce the physical chips. Like a clothing designer who sketches garments and contracts a factory to sew them, this model keeps upfront equipment costs low but exposes the business to manufacturing availability, lead times and partner pricing—factors investors watch because they affect cash needs, margins and supply-chain risk.

semiconductor-based technical

"provides high-performance, semiconductor-based power electronics solutions..."

Goods, systems, or processes described as "semiconductor-based" rely on semiconductor materials and integrated chips to perform their core functions—think of the chip as the engine inside electronic devices. For investors, that signals exposure to the semiconductor industry's supply chains, manufacturing costs, technology upgrades and demand cycles, which can drive revenue growth, margins and capital needs much like engine quality shapes a car’s performance and repair bills.

form 10-k regulatory

"effective following the issuance of MPS’s 2025 annual report on Form 10-K."

A Form 10-K is a comprehensive report that publicly traded companies are required to file annually with regulators. It provides a detailed overview of a company's financial health, operations, and risks, similar to a detailed health report. Investors use this information to assess the company's performance and make informed decisions about buying or selling its stock.

schedule 13g regulatory

"has filed an amended Schedule 13G reporting a significant ownership stake..."

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

rule 144 regulatory

"filed a notice of proposed sale under Rule 144 to dispose of 51,841 shares..."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

View in glossary

rule 10b5-1 regulatory

"reported multiple open‑market sales ... under a pre‑arranged Rule 10b5‑1 trading plan."

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

performance-based restricted stock units financial

"acquired on February 3, 2026 as performance-based restricted stock units from the issuer."

Performance-based restricted stock units are a type of employee equity award that converts into company shares only if predefined financial or operational targets are met over a set period. Think of it like a bonus check that becomes stock only when specific goals are hit; it ties pay to results, aligning managers’ incentives with shareholders. Investors care because these awards affect future share count, executive incentives, and signal how management’s success will be measured and rewarded.

power electronics technical

"provides high-performance, semiconductor-based power electronics solutions..."

Power electronics are devices that control and convert electrical energy to make it more useful or efficient. Think of them as the switches and converters in appliances or electric cars that manage how electricity flows, helping save energy and improve performance. They matter because they make modern technology work smoothly and help reduce energy waste.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SCHAFFHAUSEN, Switzerland, Feb. 05, 2026 (GLOBE NEWSWIRE) -- Monolithic Power Systems, Inc. (“MPS”) (Nasdaq: MPWR), a fabless global company that provides high-performance, semiconductor-based power electronics solutions, today announced that Bernie Blegen will retire from his position as Executive Vice President and CFO effective following the issuance of MPS’s 2025 annual report on Form 10-K. Mr. Blegen will remain with MPS after his retirement to ensure a smooth transition with his eventual successor.

“Bernie started with MPS in 2011 as Corporate Controller when MPS was relatively small and only beginning to strategically diversify. In his ten years as CFO, MPS has grown consistently at an above-market growth rate, while earning the trust of our institutional shareholders,” said Michael Hsing, CEO and founder of MPS. “This trust, based on MPS’s culture and core team members, will continue as Bernie supports a smooth transition.”

Effective upon Mr. Blegen’s retirement, MPS’s current Corporate Controller Rob Dean will serve as interim CFO. Mr. Dean has been MPS’s Corporate Controller for nine years.

About Monolithic Power Systems
Monolithic Power Systems, Inc. is a fabless global company that provides high-performance, semiconductor-based power electronics solutions. MPS’s mission is to reduce energy and material consumption to improve all aspects of quality of life and create a sustainable future. Founded in 1997 by our CEO Michael Hsing, MPS has three core strengths: deep system-level knowledge, strong semiconductor design expertise, and innovative proprietary technologies in the areas of semiconductor processes, system integration, and packaging. These combined advantages enable MPS to deliver reliable, compact, and monolithic solutions that are highly energy-efficient, cost-effective, and environmentally responsible while providing a consistent return on investment to our stockholders. MPS can be contacted through its website at www.monolithicpower.com or its support offices around the world. 

Monolithic Power Systems, MPS, and the MPS logo are registered trademarks of Monolithic Power Systems, Inc. in the U.S. and trademarked in certain other countries. 

Safe Harbor Statement

This press release includes “forward-looking statements” intended to qualify for the safe harbor from liability established by the Private Securities Litigation Reform Act of 1995, including the quote from our CEO. These forward-looking statements are based on our current expectations, estimates and projections about our business and industry, management’s beliefs, and certain assumptions made by us, all of which are subject to change. Forward-looking statements can often be identified by words such as “anticipates,” “expects,” “forecasts,” “intends,” “believes,” “plans,” “may,” “will,” or “continue,” and similar expressions and variations or negatives of these words. All such statements are subject to certain risks, assumptions and uncertainties, including those described in our most recent Annual Report on Form 10-K and Quarterly Reports on Form 10-Q, and in other documents that we file or furnish with the Securities and Exchange Commission. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially and adversely from those projected, and may affect our future operating results, financial position and cash flows. Accordingly, you are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date they are made. Except to the extent required by law, MPS does not undertake, and expressly disclaims, any duty or obligation to update publicly any forward-looking statement after the initial distribution of this release, whether as a result of new information, future events, changes in assumptions or otherwise. 

Contact:
Tony Balow
Vice President, Finance
Monolithic Power Systems, Inc.
MPSInvestor.Relations@monolithicpower.com

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

When will MPWR CFO Bernie Blegen officially retire?

He will retire after Monolithic Power Systems files its 2025 Form 10-K. According to the company, retirement takes effect following issuance of the 2025 annual report, and he will remain to aid transition.

Who will serve as interim CFO of MPWR after Blegen retires?

Rob Dean, the current Corporate Controller, will serve as interim CFO effective upon Blegen's retirement. According to the company, Mr. Dean has been Corporate Controller for nine years and will manage the transition.

Will Bernie Blegen remain with MPWR after his retirement date?

Yes, he will remain with the company to ensure a smooth transition. According to the company, Blegen will stay on after retirement to support his eventual successor and continuity.

How long did Bernie Blegen serve as MPWR CFO and at the company?

Blegen served ten years as CFO and joined MPS in 2011 as Corporate Controller. According to the company, his tenure covered a period of consistent above-market growth for the business.

Does MPWR name a permanent successor for the CFO role?

No permanent successor was named at the announcement; an interim CFO was appointed. According to the company, Rob Dean will act as interim CFO while the company manages the succession process.