Stocks · Technology · Semiconductors & Related Devices

Monolithic Power Systems

MPWR Clue Score70
United States Fiscal year ends December CIK 0001280452
1,386.29
+1.20%
Close, 9 Oct 2026 · USD

Price, with every insider trade on it

Closing prices, 12 months · point at a dot for who traded, or at the line for the close
1,386.29 on 9 Oct 2026
1,690 1,273 857 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $981.67 14 Oct 2025 $968.25 15 Oct 2025 $1,007.93 16 Oct 2025 $1,026.83 17 Oct 2025 $1,004.65 20 Oct 2025 $1,031.59 21 Oct 2025 $1,028.67 22 Oct 2025 $1,001.40 23 Oct 2025 $1,070.80 24 Oct 2025 $1,074.91 27 Oct 2025 $1,105.05 28 Oct 2025 $1,086.36 29 Oct 2025 $1,094.08 30 Oct 2025 $1,087.56 31 Oct 2025 $1,005.00 3 Nov 2025 $1,003.93 4 Nov 2025 $957.87 5 Nov 2025 $1,000.15 6 Nov 2025 $958.07 7 Nov 2025 $958.26 10 Nov 2025 $976.31 11 Nov 2025 $954.71 12 Nov 2025 $958.35 13 Nov 2025 $924.29 14 Nov 2025 $920.19 17 Nov 2025 $897.01 18 Nov 2025 $856.96 19 Nov 2025 $884.65 20 Nov 2025 $857.19 21 Nov 2025 $872.35 24 Nov 2025 $892.97 25 Nov 2025 $908.61 26 Nov 2025 $924.95 28 Nov 2025 $928.17 1 Dec 2025 $928.35 2 Dec 2025 $952.18 3 Dec 2025 $958.02 4 Dec 2025 $952.74 5 Dec 2025 $963.28 8 Dec 2025 $983.58 9 Dec 2025 $962.95 10 Dec 2025 $979.02 11 Dec 2025 $981.48 12 Dec 2025 $946.51 15 Dec 2025 $949.40 16 Dec 2025 $951.36 17 Dec 2025 $912.25 18 Dec 2025 $929.48 19 Dec 2025 $937.11 22 Dec 2025 $945.16 23 Dec 2025 $943.55 24 Dec 2025 $953.25 26 Dec 2025 $946.32 29 Dec 2025 $930.04 30 Dec 2025 $923.91 31 Dec 2025 $906.36 2 Jan 2026 $936.31 5 Jan 2026 $955.03 6 Jan 2026 $1,005.38 7 Jan 2026 $959.08 8 Jan 2026 $959.09 9 Jan 2026 $958.97 12 Jan 2026 $967.16 13 Jan 2026 $983.28 14 Jan 2026 $983.60 15 Jan 2026 $1,009.54 16 Jan 2026 $1,033.17 20 Jan 2026 $1,034.49 21 Jan 2026 $1,074.93 22 Jan 2026 $1,076.67 23 Jan 2026 $1,063.74 26 Jan 2026 $1,068.14 27 Jan 2026 $1,095.49 28 Jan 2026 $1,161.78 29 Jan 2026 $1,183.15 30 Jan 2026 $1,124.15 2 Feb 2026 $1,173.22 3 Feb 2026 $1,164.83 4 Feb 2026 $1,136.83 5 Feb 2026 $1,155.99 6 Feb 2026 $1,229.82 9 Feb 2026 $1,206.18 10 Feb 2026 $1,142.02 11 Feb 2026 $1,196.73 12 Feb 2026 $1,155.93 13 Feb 2026 $1,171.47 17 Feb 2026 $1,173.18 18 Feb 2026 $1,188.32 19 Feb 2026 $1,175.22 20 Feb 2026 $1,204.10 23 Feb 2026 $1,190.06 24 Feb 2026 $1,213.67 25 Feb 2026 $1,231.95 26 Feb 2026 $1,180.13 27 Feb 2026 $1,142.74 2 Mar 2026 $1,142.58 3 Mar 2026 $1,074.37 4 Mar 2026 $1,099.02 5 Mar 2026 $1,078.44 6 Mar 2026 $1,023.16 9 Mar 2026 $1,062.00 10 Mar 2026 $1,055.82 11 Mar 2026 $1,071.09 12 Mar 2026 $1,033.88 13 Mar 2026 $1,052.59 16 Mar 2026 $1,077.40 17 Mar 2026 $1,066.66 18 Mar 2026 $1,075.29 19 Mar 2026 $1,092.69 20 Mar 2026 $1,068.85 23 Mar 2026 $1,076.35 24 Mar 2026 $1,101.59 25 Mar 2026 $1,118.66 26 Mar 2026 $1,058.28 27 Mar 2026 $1,053.01 30 Mar 2026 $1,002.34 31 Mar 2026 $1,093.35 1 Apr 2026 $1,119.51 2 Apr 2026 $1,118.49 6 Apr 2026 $1,180.03 7 Apr 2026 $1,191.22 8 Apr 2026 $1,312.94 9 Apr 2026 $1,334.21 10 Apr 2026 $1,353.85 13 Apr 2026 $1,372.23 14 Apr 2026 $1,363.42 15 Apr 2026 $1,353.00 16 Apr 2026 $1,402.81 17 Apr 2026 $1,468.35 20 Apr 2026 $1,490.86 21 Apr 2026 $1,527.95 22 Apr 2026 $1,522.04 23 Apr 2026 $1,592.17 24 Apr 2026 $1,632.06 27 Apr 2026 $1,587.57 28 Apr 2026 $1,504.08 29 Apr 2026 $1,526.84 30 Apr 2026 $1,614.41 1 May 2026 $1,583.48 4 May 2026 $1,573.30 5 May 2026 $1,588.12 6 May 2026 $1,652.35 7 May 2026 $1,575.96 8 May 2026 $1,600.84 11 May 2026 $1,661.10 12 May 2026 $1,599.52 13 May 2026 $1,650.35 14 May 2026 $1,613.97 15 May 2026 $1,550.02 18 May 2026 $1,486.33 19 May 2026 $1,468.11 20 May 2026 $1,553.27 21 May 2026 $1,561.25 22 May 2026 $1,589.81 26 May 2026 $1,662.98 27 May 2026 $1,620.17 28 May 2026 $1,633.17 29 May 2026 $1,566.21 1 Jun 2026 $1,542.39 2 Jun 2026 $1,624.99 3 Jun 2026 $1,689.89 4 Jun 2026 $1,652.60 5 Jun 2026 $1,481.05 8 Jun 2026 $1,559.18 9 Jun 2026 $1,531.98 10 Jun 2026 $1,473.04 11 Jun 2026 $1,589.55 12 Jun 2026 $1,577.32 15 Jun 2026 $1,652.29 16 Jun 2026 $1,498.77 17 Jun 2026 $1,448.21 18 Jun 2026 $1,563.70 22 Jun 2026 $1,537.88 23 Jun 2026 $1,423.76 24 Jun 2026 $1,434.95 25 Jun 2026 $1,438.30 26 Jun 2026 $1,313.32 29 Jun 2026 $1,312.77 30 Jun 2026 $1,382.36 1 Jul 2026 $1,331.73 2 Jul 2026 $1,288.16 6 Jul 2026 $1,346.13 7 Jul 2026 $1,272.81 8 Jul 2026 $1,315.51 9 Jul 2026 $1,374.13 10 Jul 2026 $1,352.74 13 Jul 2026 $1,291.38 14 Jul 2026 $1,376.41 15 Jul 2026 $1,352.66 16 Jul 2026 $1,305.65 17 Jul 2026 $1,312.00 20 Jul 2026 $1,328.80 21 Jul 2026 $1,383.26 22 Jul 2026 $1,398.45 23 Jul 2026 $1,397.15 24 Jul 2026 $1,333.81 27 Jul 2026 $1,339.08 28 Jul 2026 $1,282.01 29 Jul 2026 $1,248.76 30 Jul 2026 $1,316.18 31 Jul 2026 $1,426.03 3 Aug 2026 $1,344.37 4 Aug 2026 $1,335.03 5 Aug 2026 $1,345.46 6 Aug 2026 $1,359.08 7 Aug 2026 $1,401.54 10 Aug 2026 $1,381.10 11 Aug 2026 $1,402.11 12 Aug 2026 $1,425.01 13 Aug 2026 $1,362.55 14 Aug 2026 $1,402.01 17 Aug 2026 $1,415.99 18 Aug 2026 $1,333.18 19 Aug 2026 $1,300.14 20 Aug 2026 $1,310.60 21 Aug 2026 $1,316.28 24 Aug 2026 $1,285.03 25 Aug 2026 $1,304.15 26 Aug 2026 $1,303.88 27 Aug 2026 $1,311.08 28 Aug 2026 $1,256.26 31 Aug 2026 $1,267.77 1 Sep 2026 $1,225.96 2 Sep 2026 $1,219.36 3 Sep 2026 $1,213.65 4 Sep 2026 $1,223.86 8 Sep 2026 $1,218.50 9 Sep 2026 $1,203.75 10 Sep 2026 $1,186.08 11 Sep 2026 $1,234.46 14 Sep 2026 $1,143.24 15 Sep 2026 $1,142.46 16 Sep 2026 $1,147.61 17 Sep 2026 $1,169.58 18 Sep 2026 $1,217.80 21 Sep 2026 $1,277.68 22 Sep 2026 $1,380.62 23 Sep 2026 $1,355.47 24 Sep 2026 $1,335.55 25 Sep 2026 $1,367.43 28 Sep 2026 $1,351.20 29 Sep 2026 $1,355.99 30 Sep 2026 $1,347.22 1 Oct 2026 $1,360.97 2 Oct 2026 $1,439.73 5 Oct 2026 $1,479.89 6 Oct 2026 $1,473.69 7 Oct 2026 $1,425.98 8 Oct 2026 $1,369.80 9 Oct 2026 $1,386.29 Tseng Saria EVP & General Counsel Sold on a plan $14.25M 15 Oct 2025 · at $1,016.18 · 9.7% of stake Tseng Saria EVP & General Counsel Sold on a plan $2.88M 16 Oct 2025 · at $1,025.72 · 2.2% of stake Tseng Saria EVP & General Counsel Sold on a plan $1.41M 24 Oct 2025 · at $1,087.62 · 1.0% of stake BLEGEN THEODORE EVP and CFO Sold on a plan $3.07M 3 Nov 2025 · at $1,024.43 · 3.9% of stake Sciammas Maurice EVP, WW Sales & Marketing Sold at will $197.36K 5 Nov 2025 · at $986.81 · 13.3% of stake Hsing Michael CEO Sold at will $38.34M 11 Nov 2025 · at $958.39 · 4.0% of stake Hsing Michael CEO Sold at will $35.72M 12 Nov 2025 · at $965.52 · 3.9% of stake Sciammas Maurice EVP, WW Sales & Marketing Sold at will $30.78M 19 Nov 2025 · at $879.36 · 19.1% of stake CHANG KUO WEI HERBERT Director Sold at will $87.40K 21 Nov 2025 · at $873.97 · 16.0% of stake Sciammas Maurice EVP, WW Sales & Marketing Sold at will $3.56M 24 Nov 2025 · at $895.23 · 2.7% of stake CHANG KUO WEI HERBERT Director Sold at will $89.70K 25 Nov 2025 · at $896.97 · 19.0% of stake Tseng Saria EVP & General Counsel Sold at will $18.08M 25 Nov 2025 · at $904.18 · 9.6% of stake Tseng Saria EVP & General Counsel Sold at will $18.53M 26 Nov 2025 · at $926.47 · 10.7% of stake BLEGEN THEODORE EVP and CFO Sold on a plan $2.72M 1 Dec 2025 · at $908.21 · 4.0% of stake Lee Victor K Director Sold on a plan $951.72K 24 Dec 2025 · at $951.72 · 3.4% of stake Lee Victor K Director Sold on a plan $558.52K 2 Jan 2026 · at $930.86 · 2.1% of stake BLEGEN THEODORE EVP and CFO Sold on a plan $2.82M 2 Jan 2026 · at $940.47 · 4.2% of stake BLEGEN THEODORE EVP and CFO Sold on a plan $3.39M 2 Feb 2026 · at $1,129.76 · 4.4% of stake BLEGEN THEODORE EVP and CFO Sold at will $25.44M 6 Feb 2026 · at $1,171.16 · 20.9% of stake Sciammas Maurice EVP, WW Sales & Marketing Sold at will $26.79M 6 Feb 2026 · at $1,171.16 · 11.4% of stake Tseng Saria EVP & General Counsel Sold at will $26.79M 6 Feb 2026 · at $1,171.16 · 10.2% of stake Xiao Deming EVP, Global Operations Sold at will $26.79M 6 Feb 2026 · at $1,171.16 · 8.8% of stake Hsing Michael CEO Sold at will $64.32M 6 Feb 2026 · at $1,171.16 · 5.3% of stake Lee Victor K Director Sold on a plan $484.86K 9 Feb 2026 · at $1,212.16 · 1.4% of stake Hsing Michael CEO Sold on a plan $38.84M 10 Feb 2026 · at $1,142.28 · 3.4% of stake Sciammas Maurice EVP, WW Sales & Marketing Sold at will $236.00K 11 Feb 2026 · at $1,179.98 · 13.3% of stake Hsing Michael CEO Sold on a plan $39.23M 11 Feb 2026 · at $1,188.92 · 3.5% of stake Hsing Michael CEO Sold on a plan $38.67M 12 Feb 2026 · at $1,171.83 · 3.6% of stake Sciammas Maurice EVP, WW Sales & Marketing Sold on a plan $32.85K 20 Mar 2026 · at $1,095.07 · 2.3% of stake Tseng Saria EVP & General Counsel Sold on a plan $25.94M 30 Mar 2026 · at $1,010.50 · 12.8% of stake Sciammas Maurice EVP, WW Sales & Marketing Sold on a plan $33.49K 1 Apr 2026 · at $1,116.44 · 2.4% of stake Tseng Saria EVP & General Counsel Sold on a plan $1.59M 1 Apr 2026 · at $1,133.52 · 0.8% of stake Tseng Saria EVP & General Counsel Sold on a plan $8.92M 6 Apr 2026 · at $1,167.95 · 4.4% of stake Tseng Saria EVP & General Counsel Sold on a plan $11.70M 8 Apr 2026 · at $1,305.22 · 5.4% of stake Sciammas Maurice EVP, WW Sales & Marketing Sold on a plan $47.66K 4 May 2026 · at $1,588.73 · 2.4% of stake Sciammas Maurice EVP, WW Sales & Marketing Sold at will $601.85K 5 May 2026 · at $1,583.81 · 29.3% of stake Zhou Jeff Director Sold at will $1.61M 5 May 2026 · at $1,587.06 · 17.5% of stake Wynne Eileen Director Sold at will $530.20K 6 May 2026 · at $1,582.68 · 25.0% of stake Zhou Jeff Director Sold at will $825.00K 6 May 2026 · at $1,650.00 · 10.4% of stake Elmiger Eugen J Director Sold at will $19.02M 6 May 2026 · at $1,584.96 · 69.0% of stake Xiao Deming EVP, Global Operations Sold at will $49.64M 6 May 2026 · at $1,654.55 · 12.7% of stake Sciammas Maurice EVP, WW Sales & Marketing Sold on a plan $18.74M 15 May 2026 · at $1,561.40 · 6.7% of stake DEAN ROBERT W II Interim CFO Sold at will $6.25K 18 May 2026 · at $1,563.28 · 0.1% of stake Hsing Michael CEO Sold at will $59.31M 18 May 2026 · at $1,482.75 · 4.5% of stake Tseng Saria EVP & General Counsel Sold at will $7.93M 22 May 2026 · at $1,586.43 · 3.2% of stake DEAN ROBERT W II Interim CFO Sold at will $36.29K 26 May 2026 · at $1,649.56 · 0.4% of stake Zhou Jeff Director Sold at will $816.48K 26 May 2026 · at $1,680.00 · 11.3% of stake Tseng Saria EVP & General Counsel Sold at will $12.86M 27 May 2026 · at $1,700.00 · 5.0% of stake Sciammas Maurice EVP, WW Sales & Marketing Sold on a plan $46.02K 1 Jun 2026 · at $1,533.95 · 2.5% of stake Sciammas Maurice EVP, WW Sales & Marketing Sold on a plan $40.55K 1 Jul 2026 · at $1,351.61 · 2.5% of stake Sciammas Maurice EVP, WW Sales & Marketing Sold on a plan $20.25M 15 Jul 2026 · at $1,349.73 · 9.0% of stake Sciammas Maurice EVP, WW Sales & Marketing Sold on a plan $40.32K 3 Aug 2026 · at $1,343.94 · 2.6% of stake DEAN ROBERT W II Interim CFO Sold at will $141.15K 5 Aug 2026 · at $1,344.27 · 1.5% of stake CHANG KUO WEI HERBERT Director Sold at will $71.00K 11 Aug 2026 · at $1,420.00 · 8.1% of stake DEAN ROBERT W II Interim CFO Sold at will $8.48K 17 Aug 2026 · at $1,413.64 · 0.1% of stake DEAN ROBERT W II Interim CFO Sold at will $41.53K 24 Aug 2026 · at $1,297.72 · 0.4% of stake CHANG KUO WEI HERBERT Director Sold at will $64.08K 24 Aug 2026 · at $1,281.57 · 8.8% of stake Hsing Michael CEO Sold on a plan $40.35M 28 Sep 2026 · at $1,344.97 · 3.5% of stake
0 buys32 sales at will26 planned sales

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$2.79B
Net income
$621.48M
Free cash flow
$666.19M
Gross margin
55.2%
Operating margin
26.1%
Net margin
22.3%
Return on equity
17.6%
Return on capital
16.7%
Revenue growth, 1 yr
26.4%
Revenue growth, 5 yr
27.0% a year
EPS growth, 1 yr
-60.6%

Revenue and net income

Fiscal years, as filed with the SEC · point at a year for the detail
844M 164M FY20 Fiscal year 2020 Revenue $844.45M Net income $164.38M Margin 19.5% 1.2B 242M FY21 Fiscal year 2021 Revenue $1.21B Net income $242.02M Margin 20.0% · growth +43.0% 1.8B 438M FY22 Fiscal year 2022 Revenue $1.79B Net income $437.67M Margin 24.4% · growth +48.5% 1.8B 427M FY23 Fiscal year 2023 Revenue $1.82B Net income $427.37M Margin 23.5% · growth +1.5% 2.2B 1.6B FY24 Fiscal year 2024 Revenue $2.21B Net income $1.59B Margin 72.1% · growth +21.2% 2.8B 621M FY25 Fiscal year 2025 Revenue $2.79B Net income $621.48M Margin 22.3% · growth +26.4%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
28 Sep 2026 Hsing Michael
CEO
Sold on a plan $40.35M 3.5%
24 Aug 2026 CHANG KUO WEI HERBERT
Director
Sold at will $64.08K 8.8%
24 Aug 2026 DEAN ROBERT W II
Interim CFO
Sold at will $41.53K 0.4%
17 Aug 2026 DEAN ROBERT W II
Interim CFO
Sold at will $8.48K 0.1%
11 Aug 2026 CHANG KUO WEI HERBERT
Director
Sold at will $71.00K 8.1%
5 Aug 2026 DEAN ROBERT W II
Interim CFO
Sold at will $141.15K 1.5%