Monolithic Power Systems

MPWR

Source: the SEC Form 13F filings of the managers we follow, latest for Q2 2026. How we use them

Value held

$6.0m

Combined value at quarter end

Last quarter

2 bought

0 sold or trimmed

Prices here are quarter-end prices implied by the 13F filings. Today’s price on Yahoo Finance

Who holds it

Each manager’s latest 13F, sorted by how much of their portfolio it is. Changes are against their previous quarter.

Managers holding Monolithic Power Systems

Torray Investment Partners	0.7%$5.1m	$5.1m	Added +0.2%	31 qtrs
Maverick Capital	0.0%$820k	$820k	New	1 qtr

Download the holders: CSV · JSON · Markdown

Directors buying and selling

Open-market trades by directors, officers and 10% holders over the last 12 months. How this works

From their Form 4 filings with the SEC. Grants, option exercises and shares sold to pay tax are left out.

Sort by

Insider purchases and sales of Monolithic Power Systems
		Bought or sold				Filing
28 Sep 2026	Hsing MichaelCEO	▼ Sold	10,967	$1351.43	$14.8m	Form 4
28 Sep 2026	Hsing MichaelCEO	▼ Sold	6,343	$1347.15	$8.5m	Form 4
28 Sep 2026	Hsing MichaelCEO	▼ Sold	5,783	$1343.76	$7.8m	Form 4
28 Sep 2026	Hsing MichaelCEO	▼ Sold	2,949	$1338.66	$3.9m	Form 4
28 Sep 2026	Hsing MichaelCEO	▼ Sold	2,121	$1328.54	$2.8m	Form 4
28 Sep 2026	Hsing MichaelCEO	▼ Sold	1,111	$1333.34	$1.5m	Form 4
28 Sep 2026	Hsing MichaelCEO	▼ Sold	596	$1323.31	$789k	Form 4
28 Sep 2026	Hsing MichaelCEO	▼ Sold	130	$1356.94	$176k	Form 4
24 Aug 2026	Chang Kuo Wei HerbertDirector	▼ Sold	50	$1281.57	$64k	Form 4
24 Aug 2026	Dean Robert W IIInterim CFO	▼ Sold	32	$1297.72	$42k	Form 4
17 Aug 2026	Dean Robert W IIInterim CFO	▼ Sold	6	$1413.64	$8k	Form 4
11 Aug 2026	Chang Kuo Wei HerbertDirector	▼ Sold	50	$1420.00	$71k	Form 4
5 Aug 2026	Dean Robert W IIInterim CFO	▼ Sold	105	$1344.27	$141k	Form 4
3 Aug 2026	Sciammas MauriceEVP, WW Sales & Marketing	▼ Sold	30	$1343.94	$40k	Form 4
15 Jul 2026	Sciammas MauriceEVP, WW Sales & Marketing	▼ Sold	5,640	$1352.95	$7.6m	Form 4
15 Jul 2026	Sciammas MauriceEVP, WW Sales & Marketing	▼ Sold	1,864	$1344.16	$2.5m	Form 4
15 Jul 2026	Sciammas MauriceEVP, WW Sales & Marketing	▼ Sold	1,506	$1348.91	$2.0m	Form 4
15 Jul 2026	Sciammas MauriceEVP, WW Sales & Marketing	▼ Sold	1,460	$1339.59	$2.0m	Form 4
15 Jul 2026	Sciammas MauriceEVP, WW Sales & Marketing	▼ Sold	776	$1334.59	$1.0m	Form 4
15 Jul 2026	Sciammas MauriceEVP, WW Sales & Marketing	▼ Sold	527	$1314.03	$692k	Form 4

About the company

Sector: Technology · Semiconductors & Related Devices
Incorporated in: Delaware
Financial year ends: 31 December
Shares outstanding: 49m at 29 Jul 2026
SEC filings: Annual reports and other filings on EDGAR

Revenue and profit

$238m2013

$333m2015

$471m2017

$628m2019

$1.2bn2021

$1.8bn2023

$2.8bn2025

Monolithic Power Systems revenue and net income by year
Year	Revenue	Net income
2025	$2.8bn	$621m
2024	$2.2bn	$1.6bn
2023	$1.8bn	$427m
2022	$1.8bn	$438m
2021	$1.2bn	$242m
2020	$844m	$164m
2019	$628m	$109m
2018	$582m	$105m
2017	$471m	$65.2m
2016	$389m	$52.7m
2015	$333m	$35.2m
2014	$283m	$35.5m
2013	$238m	$22.9m

From the company’s XBRL financial statements filed with the SEC, for each financial year. Gaps mean the company didn’t report that figure in a standard form.

Monolithic Power Systems

Managers holding it, by quarter

Who holds it

Directors buying and selling

About the company

Revenue and profit