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Monolithic Power Systems, Inc. (MPWR)

Monolithic Power Systems, Inc. at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

Monolithic Power Systems, Inc. (MPWR) is a Semiconductors company based in US with a market capitalization of $77.5B. Revenue grew 26.4% year-over-year and the company generated $666.2M in free cash flow. This page tracks MPWR's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 4.02K employees · IPO Nov 19, 2004

Valuation

Valuation & price

$1550.02 · as of May 17, 2026 · -8.3% vs 52w high

121.6

P/E ratio

Latest-FY diluted EPS

21.96

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$1.7K$1.2K$711Jul 25Dec 25Jul 26Jul 7, 25$741.17Jul 9, 25$751.14Jul 11, 25$736.06Jul 15, 25$717.62Jul 17, 25$713.57Jul 21, 25$724.77Jul 23, 25$720.01Jul 25, 25$714.68Jul 29, 25$724.37Jul 31, 25$711.24Aug 4, 25$830.63Aug 6, 25$805.85Aug 11, 25$797.51Aug 13, 25$861.80Aug 15, 25$826.47Aug 19, 25$844.80Aug 21, 25$820.74Aug 25, 25$837.86Aug 27, 25$866.32Aug 29, 25$835.76Sep 3, 25$827.56Sep 5, 25$865.86Sep 9, 25$857.87Sep 11, 25$840.38Sep 16, 25$857.02Sep 18, 25$917.78Sep 22, 25$922.81Sep 24, 25$908.45Sep 26, 25$887.55Sep 30, 25$920.64Oct 2, 25$930.51Oct 6, 25$968.10Oct 8, 25$980.90Oct 10, 25$904.44Oct 14, 25$968.25Oct 16, 25$1026.83Oct 21, 25$1028.67Oct 23, 25$1070.80Oct 27, 25$1105.05Oct 29, 25$1094.08Oct 31, 25$1005.00Nov 4, 25$957.87Nov 6, 25$958.07Nov 10, 25$976.31Nov 12, 25$958.35Nov 14, 25$920.19Nov 18, 25$856.96Nov 20, 25$857.19Nov 25, 25$908.61Nov 28, 25$928.17Dec 2, 25$952.18Dec 4, 25$952.74Dec 8, 25$983.58Dec 10, 25$979.02Dec 12, 25$946.51Dec 16, 25$951.36Dec 18, 25$929.48Dec 22, 25$945.16Dec 24, 25$953.25Dec 29, 25$930.04Jan 2, 26$936.31Jan 6, 26$1005.38Jan 8, 26$959.09Jan 12, 26$967.16Jan 14, 26$983.60Jan 16, 26$1033.17Jan 21, 26$1074.93Jan 23, 26$1063.74Jan 27, 26$1095.49Jan 29, 26$1183.15Feb 2, 26$1173.22Feb 4, 26$1136.83Feb 9, 26$1206.18Feb 11, 26$1196.73Feb 13, 26$1171.47Feb 18, 26$1188.32Feb 20, 26$1204.10Feb 24, 26$1213.67Feb 26, 26$1180.13Mar 2, 26$1142.58Mar 4, 26$1099.02Mar 6, 26$1023.16Mar 10, 26$1055.82Mar 12, 26$1033.88Mar 17, 26$1066.66Mar 19, 26$1092.69Mar 23, 26$1076.35Mar 25, 26$1118.66Mar 27, 26$1053.01Mar 31, 26$1093.35Apr 2, 26$1118.49Apr 7, 26$1191.22Apr 9, 26$1334.21Apr 13, 26$1372.23Apr 15, 26$1353.00Apr 17, 26$1468.35Apr 22, 26$1522.04Apr 24, 26$1632.06Apr 28, 26$1504.08Apr 30, 26$1614.41May 4, 26$1573.30May 6, 26$1652.35May 8, 26$1600.84May 12, 26$1599.52May 14, 26$1613.97May 18, 26$1486.33May 20, 26$1553.27May 22, 26$1589.81May 28, 26$1633.17Jun 1, 26$1542.39Jun 3, 26$1689.89Jun 5, 26$1481.05Jun 9, 26$1531.98Jun 11, 26$1589.55Jun 15, 26$1652.29Jun 17, 26$1448.21Jun 22, 26$1537.88Jun 24, 26$1434.95Jun 26, 26$1313.32Jul 2, 26$1288.16
$711.2452-week range$1689.89
Loading valuation history…

Fundamentals

Key fundamentals

$77.5B

Market cap

26.4%

Revenue growth (YoY)

55.2%

Gross margin

$666.2M

Free cash flow (USD)

-$1.2B

Net debt

Net cash position

-1.2%

Share dilution

3/5

Graham criteria passed

Defensive-investor screen

Technology

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$388.7MFY 2017$470.9MFY 2018$582.4MFY 2019$627.9MFY 2020$844.5MFY 2021$1.2BFY 2022$1.8BFY 2023$1.8BFY 2024$2.2BFY 2025$2.8B
$388.7M$2.8B

Free cash flow by year

2016 → 2025

FY 2016$70.7MFY 2017$68.0MFY 2018$118.9MFY 2019$119.5MFY 2020$212.2MFY 2021$224.8MFY 2022$187.8MFY 2023$580.6MFY 2024$642.3MFY 2025$666.2M
$70.7M$666.2M

Gross margin by year

2021 → 2025

FY 202156.8%FY 202258.4%FY 202356.1%FY 202455.3%FY 202555.2%
56.8%55.2%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

16

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 4, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • 8-K eventAnnual Meeting ResultsJun 12, 2026Filing
  • Insider sellInsider Sell $46K · 10b5-1 PlanSciammas Maurice · EVP, WW Sales & Marketing · $46KJun 3, 2026Filing
  • Insider sellInsider Sell $12.9MTseng Saria · EVP & General Counsel · $12.9MMay 29, 2026Filing
  • Insider sellInsider Sell $36KDEAN ROBERT W II · Interim CFO · $36.3KMay 28, 2026Filing
  • Insider sellInsider Sell $7.9MTseng Saria · EVP & General Counsel · $7.9MMay 27, 2026Filing
  • Insider sellInsider Sell $816KZhou Jeff · Director · $816.5KMay 27, 2026Filing
  • Insider sellInsider Sell $6KDEAN ROBERT W II · Interim CFO · $6.3KMay 20, 2026Filing
  • Insider sellInsider Sell $59.3MHsing Michael · Director, CEO · $59.3MMay 20, 2026Filing
  • Insider sellInsider Sell $18.7M · 10b5-1 PlanSciammas Maurice · EVP, WW Sales & Marketing · $18.7MMay 19, 2026Filing
  • Insider sellInsider Sell $530KWynne Eileen · Director · $530.2KMay 8, 2026Filing

Questions

Frequently asked questions

What is Monolithic Power Systems, Inc.'s market cap?

Monolithic Power Systems, Inc. (MPWR) has a market capitalization of $77.5B.

What is MPWR's P/E ratio?

MPWR trades at a price-to-earnings ratio of 121.6, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

What is MPWR's price-to-book (P/B) ratio?

MPWR trades at 21.96 times book value per share.

Are insiders buying MPWR stock?

SEC Form 4 filings show no open-market insider buys at Monolithic Power Systems, Inc. in the last 90 days (16 sells).

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Timeline

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News

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Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.