MPWR Insider Trading

Insider Trading Chart
Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 3.40%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $258,729,344.36

Monolithic Power Systems Insider Trading History Chart

Monolithic Power Systems Share Price & Price History

^$1,068.85

▼ -23.84 (-2.18%)

As of 03/20/2026 05:00 PM ET

Days: 30 | 90 | 365

Monolithic Power Systems Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
2/11/2026	Maurice Sciammas	EVP	Sell	200	$1,179.97	$235,994.00	1,299
2/9/2026	Victor K. Lee	Director	Sell	400	$1,212.16	$484,864.00	27,756
2/6/2026	Deming Xiao	EVP	Sell	22,875	$1,171.16	$26,790,285.00	235,932
2/6/2026	Maurice Sciammas	EVP	Sell	22,875	$1,171.16	$26,790,285.00	178,625
2/6/2026	Saria Tseng	EVP	Sell	22,875	$1,171.16	$26,790,285.00	200,626
2/6/2026	Theodore Blegen	CFO	Sell	21,725	$1,171.16	$25,443,451.00	82,353
2/2/2026	Theodore Blegen	CFO	Sell	3,000	$1,129.76	$3,389,280.00	65,333
1/2/2026	Theodore Blegen	CFO	Sell	3,000	$940.47	$2,821,410.00	68,332
1/2/2026	Victor K. Lee	Director	Sell	600	$930.86	$558,516.00	27,967
12/24/2025	Victor K. Lee	Director	Sell	1,000	$951.72	$951,720.00	28,567
12/1/2025	Theodore Blegen	CFO	Sell	3,000	$908.21	$2,724,630.00	71,332
11/26/2025	Saria Tseng	EVP	Sell	20,000	$926.47	$18,529,400.00	187,331
11/25/2025	Kuo Wei Herbert Chang	Director	Sell	100	$896.97	$89,697.00	426
11/24/2025	Maurice Sciammas	EVP	Sell	3,976	$895.23	$3,559,434.48	144,330
11/21/2025	Kuo Wei Herbert Chang	Director	Sell	100	$873.97	$87,397.00	526
11/19/2025	Maurice Sciammas	EVP	Sell	27,966	$881.66	$24,656,503.56	148,306
11/19/2025	Maurice Sciammas	EVP	Sell	7,034	$870.21	$6,121,057.14	176,272
11/5/2025	Maurice Sciammas	EVP	Sell	200	$986.81	$197,362.00	1,299
11/3/2025	Theodore Blegen	CFO	Sell	3,000	$1,024.43	$3,073,290.00	74,332
10/24/2025	Saria Tseng	EVP	Sell	1,300	$1,087.62	$1,413,906.00	126,354
10/16/2025	Saria Tseng	EVP	Sell	2,812	$1,025.72	$2,884,324.64	127,654
10/15/2025	Saria Tseng	EVP	Sell	14,028	$1,016.18	$14,254,973.04	130,466
10/1/2025	Theodore Blegen	CFO	Sell	3,000	$913.22	$2,739,660.00	37,940
9/18/2025	Carintia Martinez	Director	Sell	1,400	$900.00	$1,260,000.00	878
9/18/2025	Saria Tseng	EVP	Sell	14,510	$914.45	$13,268,669.50	144,494
9/2/2025	Theodore Blegen	CFO	Sell	3,000	$814.34	$2,443,020.00	40,939
8/27/2025	Jeff Zhou	Director	Sell	193	$870.00	$167,910.00	5,611
8/13/2025	Jeff Zhou	Director	Sell	400	$850.00	$340,000.00	5,804
8/12/2025	Jeff Zhou	Director	Sell	200	$830.00	$166,000.00	6,204
8/1/2025	Deming Xiao	EVP	Sell	39,999	$780.00	$31,199,220.00	121,605
8/1/2025	Theodore Blegen	CFO	Sell	3,000	$750.00	$2,250,000.00	43,939
7/1/2025	Theodore Blegen	CFO	Sell	6,000	$750.00	$4,500,000.00	46,939
5/12/2025	Kuo Wei Herbert Chang	Director	Sell	100	$698.00	$69,800.00	676
5/12/2025	Maurice Sciammas	EVP	Sell	12,000	$701.00	$8,412,000.00	4,015
5/8/2025	Kuo Wei Herbert Chang	Director	Sell	100	$650.00	$65,000.00	776
2/7/2025	Maurice Sciammas	EVP	Sell	7,000	$701.98	$4,913,860.00	16,015
12/9/2024	Theodore Blegen	CFO	Sell	2,500	$600.00	$1,500,000.00	53,444
11/8/2024	Deming Xiao	EVP	Sell	866	$765.14	$662,611.24	162,239
11/8/2024	Theodore Blegen	CFO	Sell	734	$765.15	$561,620.10	55,944
11/1/2024	Theodore Blegen	CFO	Sell	2,500	$772.96	$1,932,400.00	56,678
10/7/2024	Maurice Sciammas	EVP	Sell	11,000	$929.59	$10,225,490.00	103,829
10/1/2024	Theodore Blegen	CFO	Sell	2,500	$908.36	$2,270,900.00	59,178
9/3/2024	Theodore Blegen	CFO	Sell	2,500	$904.20	$2,260,500.00	61,678
8/27/2024	Deming Xiao	EVP	Sell	9,259	$950.00	$8,796,050.00	20,455
8/22/2024	Deming Xiao	EVP	Sell	10,000	$950.00	$9,500,000.00	29,714
8/8/2024	Deming Xiao	EVP	Sell	859	$778.39	$668,637.01	202,354
8/8/2024	Michael Hsing	CEO	Sell	2,790	$778.39	$2,171,708.10	865,332
8/8/2024	Theodore Blegen	CFO	Sell	728	$778.39	$566,667.92	64,178
8/1/2024	Theodore Blegen	CFO	Sell	2,500	$852.51	$2,131,275.00	64,906
7/22/2024	Deming Xiao	EVP	Sell	3,205	$831.58	$2,665,213.90	203,213
7/22/2024	Michael Hsing	CEO	Sell	9,614	$831.58	$7,994,810.12	868,122
7/22/2024	Theodore Blegen	CFO	Sell	2,580	$831.58	$2,145,476.40	67,406
7/8/2024	Maurice Sciammas	EVP	Sell	10,999	$843.83	$9,281,286.17	118,876
7/1/2024	Michael Hsing	CEO	Sell	2,672	$804.57	$2,149,811.04	877,736
7/1/2024	Saria Tseng	EVP	Sell	37,093	$808.20	$29,978,562.60	166,428
7/1/2024	Theodore Blegen	CFO	Sell	2,500	$804.19	$2,010,475.00	69,986
6/28/2024	Victor K. Lee	Director	Sell	1,000	$820.46	$820,460.00	29,232
6/3/2024	Michael Hsing	CEO	Sell	8,000	$731.08	$5,848,640.00	880,408
6/3/2024	Theodore Blegen	CFO	Sell	2,416	$731.43	$1,767,134.88	72,486
5/22/2024	Deming Xiao	EVP	Sell	1,300	$769.40	$1,000,220.00	206,418
5/20/2024	Jeff Zhou	Director	Sell	200	$750.00	$150,000.00	6,069
5/15/2024	Kuo Wei Herbert Chang	Director	Sell	200	$735.00	$147,000.00	941
5/8/2024	Michael Hsing	CEO	Sell	2,824	$690.00	$1,948,560.00	888,408
5/8/2024	Saria Tseng	EVP	Sell	869	$690.02	$599,627.38	203,521
5/8/2024	Theodore Blegen	CFO	Sell	737	$689.98	$508,515.26	74,986
5/1/2024	Michael Hsing	CEO	Sell	8,000	$661.85	$5,294,800.00	891,232
5/1/2024	Theodore Blegen	CFO	Sell	2,500	$663.29	$1,658,225.00	75,723
4/8/2024	Maurice Sciammas	EVP	Sell	11,000	$681.83	$7,500,130.00	130,744
4/1/2024	Michael Hsing	CEO	Sell	8,000	$677.44	$5,419,520.00	899,232
3/1/2024	Michael Hsing	CEO	Sell	8,000	$726.08	$5,808,640.00	907,232
3/1/2024	Theodore Blegen	CFO	Sell	2,500	$725.76	$1,814,400.00	80,723
2/29/2024	Kuo Wei Herbert Chang	Director	Sell	250	$706.34	$176,585.00	1,141
2/22/2024	Kuo Wei Herbert Chang	Director	Sell	250	$750.00	$187,500.00	1,391
2/12/2024	Jeff Zhou	Director	Sell	200	$750.57	$150,114.00	6,269
2/8/2024	Deming Xiao	Insider	Sell	859	$680.00	$584,120.00	208,580
2/8/2024	Michael Hsing	CEO	Sell	2,790	$680.00	$1,897,200.00	915,193
2/8/2024	Theodore Blegen	CFO	Sell	728	$680.00	$495,040.00	83,173
2/1/2024	Michael Hsing	CEO	Sell	8,000	$602.01	$4,816,080.00	921,774
2/1/2024	Theodore Blegen	CFO	Sell	2,500	$603.26	$1,508,150.00	84,768
1/12/2024	Maurice Sciammas	VP	Sell	11,000	$582.11	$6,403,210.00	143,559
1/10/2024	Deming Xiao	Insider	Sell	11,515	$589.35	$6,786,365.25	210,421
1/9/2024	Saria Tseng	VP	Sell	1,390	$600.00	$834,000.00	206,180
1/4/2024	Michael Hsing	CEO	Sell	58,654	$583.14	$34,203,493.56	937,772
1/4/2024	Saria Tseng	VP	Sell	25,314	$583.14	$14,761,605.96	207,570
1/4/2024	Theodore Blegen	CFO	Sell	27,613	$583.14	$16,102,244.82	87,268
1/2/2024	Theodore Blegen	CFO	Sell	2,500	$615.71	$1,539,275.00	114,881
12/18/2023	Theodore Blegen	CFO	Sell	2,500	$631.36	$1,578,400.00	117,381
12/13/2023	Saria Tseng	VP	Sell	18,610	$600.00	$11,166,000.00	232,884
11/16/2023	James C Moyer	Director	Sell	3,800	$538.94	$2,047,972.00	470
11/13/2023	Kuo Wei Herbert Chang	Director	Sell	100	$510.00	$51,000.00	1,693
11/8/2023	Maurice Sciammas	VP	Sell	859	$490.39	$421,245.01	182,218
11/8/2023	Michael Hsing	CEO	Sell	2,790	$490.39	$1,368,188.10	996,426
11/8/2023	Theodore Blegen	CFO	Sell	712	$490.39	$349,157.68	119,881
11/6/2023	Deming Xiao	Insider	Sell	982	$492.92	$484,047.44	251,500
11/6/2023	Michael Hsing	CEO	Sell	3,790	$492.92	$1,868,166.80	999,216
11/6/2023	Theodore Blegen	CFO	Sell	847	$492.92	$417,503.24	120,593
10/2/2023	Maurice Sciammas	VP	Sell	4,305	$458.30	$1,972,981.50	184,059
10/2/2023	Michael Hsing	CEO	Sell	10,960	$458.30	$5,022,968.00	1,003,006
10/2/2023	Theodore Blegen	CFO	Sell	905	$458.30	$414,761.50	121,440
8/29/2023	Kuo Wei Herbert Chang	Director	Sell	500	$500.00	$250,000.00	1,793
8/8/2023	Maurice Sciammas	VP	Sell	874	$530.26	$463,447.24	188,339
8/8/2023	Michael Hsing	CEO	Sell	2,836	$530.26	$1,503,817.36	1,013,951
8/8/2023	Theodore Blegen	CFO	Sell	724	$530.28	$383,922.72	122,345
8/4/2023	Michael Hsing	CEO	Sell	3,815	$526.54	$2,008,750.10	1,016,787
8/4/2023	Saria Tseng	VP	Sell	988	$526.52	$520,201.76	258,497
8/4/2023	Theodore Blegen	CFO	Sell	852	$526.52	$448,595.04	123,069
7/21/2023	Deming Xiao	Insider	Sell	9,615	$534.23	$5,136,621.45	258,632
7/21/2023	Maurice Sciammas	VP	Sell	9,843	$534.23	$5,258,425.89	190,201
7/21/2023	Michael Hsing	CEO	Sell	28,845	$534.23	$15,409,864.35	1,020,602
7/21/2023	Theodore Blegen	CFO	Sell	7,575	$534.23	$4,046,792.25	123,921
7/3/2023	Deming Xiao	Insider	Sell	4,305	$537.79	$2,315,185.95	268,247
7/3/2023	Michael Hsing	CEO	Sell	10,960	$537.79	$5,894,178.40	1,049,447
7/3/2023	Theodore Blegen	CFO	Sell	905	$537.79	$486,699.95	131,496
5/9/2023	Maurice Sciammas	VP	Sell	857	$409.78	$351,181.46	204,349
5/9/2023	Michael Hsing	CEO	Sell	2,785	$409.78	$1,141,237.30	1,060,407
5/9/2023	Theodore Blegen	CFO	Sell	711	$409.78	$291,353.58	132,401
5/4/2023	Deming Xiao	Insider	Sell	991	$459.60	$455,463.60	273,409
5/3/2023	Michael Hsing	CEO	Sell	11,242	$463.55	$5,211,229.10	1,067,017
5/3/2023	Saria Tseng	VP	Sell	3,462	$463.55	$1,604,810.10	275,253
5/3/2023	Theodore Blegen	CFO	Sell	2,870	$463.55	$1,330,388.50	133,966
4/3/2023	Michael Hsing	CEO	Sell	11,100	$487.99	$5,416,689.00	1,050,049
4/3/2023	Saria Tseng	VP	Sell	4,360	$487.99	$2,127,636.40	270,030
4/3/2023	Theodore Blegen	CFO	Sell	920	$487.99	$448,950.80	131,122

SEC Filings (Institutional Ownership Changes) for Monolithic Power Systems (NASDAQ:MPWR)

93.46% of Monolithic Power Systems stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Monolithic Power Systems Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
3/20/2026	Hsbc Holdings PLC	200,626	$182.31M	0.1%	+43.1%	0.408%
3/17/2026	Stance Capital LLC	1,416	$1.28M	0.5%	N/A	0.003%
3/17/2026	Forty three Eighteen Advisors LLC	1,433	$1.30M	1.0%	N/A	0.003%
3/17/2026	Rockefeller Capital Management L.P.	2,789	$2.53M	0.0%	+20.3%	0.006%
3/9/2026	Corient Private Wealth LLC	51,333	$47.28M	0.1%	-4.2%	0.105%
3/6/2026	Hsbc Holdings PLC	200,626	$182.31M	0.1%	+43.1%	0.408%
3/5/2026	Worthington Financial Partners LLC	1,902	$1.72M	1.5%	N/A	0.004%
3/2/2026	Reflection Asset Management	102	$92K	0.1%	N/A	0.000%
2/27/2026	Groupama Asset Managment	1,658	$1.50M	0.0%	-3.4%	0.003%
2/25/2026	Sit Investment Associates Inc.	15,916	$14.43M	0.3%	-1.6%	0.033%
2/24/2026	Ketron Financial	2,616	$2.37M	0.8%	N/A	0.005%
2/24/2026	Pacer Advisors Inc.	50,654	$45.91M	0.1%	-12.1%	0.106%
2/23/2026	Drake & Associates LLC	793	$0.72M	0.1%	+1.5%	0.002%
2/23/2026	Kera Capital Partners Inc.	448	$0.41M	0.1%	+14.9%	0.001%
2/23/2026	Walser Wealth Management Company A Ltd Liability Co	273	$0.25M	0.1%	N/A	0.001%
2/23/2026	Virtu Financial LLC	746	$0.68M	0.0%	N/A	0.002%
2/23/2026	MV Capital Management Inc.	3,671	$3.33M	0.3%	N/A	0.008%
2/19/2026	T. Rowe Price Investment Management Inc.	724,494	$656.65M	0.4%	-3.5%	1.512%
2/19/2026	Compound Planning Inc.	508	$0.46M	0.0%	+14.2%	0.001%
2/19/2026	Invesco Ltd.	1,434,689	$1.30B	0.2%	+25.9%	2.995%
2/19/2026	Corient Private Wealth LLC	2,047,173	$1.86B	1.0%	+3,719.6%	4.273%
2/18/2026	Mercer Global Advisors Inc. ADV	8,935	$8.10M	0.0%	+7.1%	0.019%
2/18/2026	Raymond James Financial Inc.	211,484	$193.72M	0.1%	-20.9%	0.441%
2/18/2026	Caitlin John LLC	1,264	$1.15M	0.8%	+168.4%	0.003%
2/18/2026	Virtue Capital Management LLC	375	$0.35M	0.0%	-60.3%	0.001%
2/18/2026	Vident Advisory LLC	17,067	$15.47M	0.1%	-16.0%	0.036%
2/18/2026	Beacon Pointe Advisors LLC	381	$0.35M	0.0%	N/A	0.001%
2/18/2026	Wahed Invest LLC	1,216	$1.10M	0.1%	-3.8%	0.003%
2/18/2026	State of Tennessee Department of Treasury	16,659	$15.10M	0.0%	+44.4%	0.035%
2/18/2026	EP Wealth Advisors LLC	392	$0.36M	0.0%	N/A	0.001%
2/18/2026	Mackenzie Financial Corp	7,347	$6.78M	0.0%	+6.4%	0.015%
2/18/2026	NewEdge Advisors LLC	10,144	$9.19M	0.0%	-13.5%	0.021%
2/18/2026	Cim LLC	1,939	$1.76M	0.2%	+1.5%	0.004%
2/18/2026	XTX Topco Ltd	2,025	$1.84M	0.0%	N/A	0.004%
2/18/2026	Guardian Capital LP	581	$0.53M	0.0%	+19.1%	0.001%
2/18/2026	VestGen Advisors LLC	883	$0.80M	0.0%	-50.6%	0.002%
2/18/2026	Virtus Investment Advisers LLC	1,755	$1.59M	0.4%	N/A	0.004%
2/18/2026	Wellington Management Group LLP	384,770	$348.74M	0.1%	-15.1%	0.803%
2/18/2026	Toronto Dominion Bank	23,649	$21.43M	0.0%	-63.6%	0.049%
2/18/2026	Sora Investors LLC	14,771	$13.39M	1.2%	N/A	0.031%
2/18/2026	Summit Securities Group LLC	144	$0.13M	0.0%	+73.5%	0.000%
2/18/2026	Odyssean LLC	783	$0.71M	0.5%	N/A	0.002%
2/18/2026	Moore Capital Management LP	17,080	$15.48M	0.2%	+32.5%	0.036%
2/18/2026	Man Group plc	26,936	$24.41M	0.0%	+176.6%	0.056%
2/18/2026	Inspire Investing LLC	10,105	$9.16M	0.8%	+20.9%	0.021%
2/18/2026	Investment Management Corp of Ontario	4,195	$3.80M	0.1%	+83.8%	0.009%
2/18/2026	Janus Henderson Group PLC	7,246	$6.57M	0.0%	-94.3%	0.015%
2/18/2026	Gotham Asset Management LLC	20,161	$18.27M	0.1%	+2.8%	0.042%
2/18/2026	Evolve Private Wealth LLC	3,314	$3.01M	0.2%	N/A	0.007%
2/18/2026	Bamco Inc. NY	65,227	$59.12M	0.2%	+35.3%	0.136%
2/18/2026	Banco Bilbao Vizcaya Argentaria S.A.	1,904	$1.73M	0.0%	+11.7%	0.004%
2/18/2026	Bridgeway Capital Management LLC	1,530	$1.39M	0.0%	N/A	0.003%
2/18/2026	American Trust	942	$0.85M	0.1%	-2.6%	0.002%
2/18/2026	4D Advisors LLC	4,000	$3.63M	2.0%	-38.5%	0.008%
2/17/2026	Freestone Grove Partners LP	7,529	$6.82M	0.0%	N/A	0.016%
2/17/2026	Guggenheim Capital LLC	16,228	$14.71M	0.1%	+379.8%	0.034%
2/17/2026	Caisse de depot et placement du Quebec	137,217	$124.37M	0.2%	+105.6%	0.286%
2/17/2026	American Capital Management Inc.	6,488	$5.88M	0.3%	-1.8%	0.014%
2/17/2026	Integrated Advisors Network LLC	834	$0.76M	0.0%	-4.0%	0.002%
2/17/2026	DV Equities LLC	67	$61K	0.0%	N/A	0.000%
2/17/2026	AQR Capital Management LLC	46,278	$41.95M	0.0%	+22.7%	0.097%
2/17/2026	EFG International AG	504	$0.46M	0.0%	N/A	0.001%
2/17/2026	Cetera Investment Advisers	12,794	$11.60M	0.0%	+1.8%	0.027%
2/17/2026	Lazard Asset Management LLC	23,783	$21.56M	0.0%	+25.0%	0.050%
2/17/2026	DF Dent & Co. Inc.	127,277	$115.36M	1.7%	-15.0%	0.266%
2/17/2026	Equitable Holdings Inc.	854	$0.77M	0.0%	-5.2%	0.002%
2/17/2026	Laird Norton Wetherby Trust Company LLC	1,489	$1.35M	0.0%	N/A	0.003%
2/17/2026	Kovack Advisors Inc.	1,453	$1.32M	0.1%	N/A	0.003%
2/17/2026	Amundi	129,471	$117.35M	0.0%	-5.9%	0.270%
2/17/2026	KP Management LLC	5,500	$4.99M	1.4%	+22.2%	0.011%
2/17/2026	FIL Ltd	316,089	$286.49M	0.2%	-36.4%	0.660%
2/17/2026	Jump Financial LLC	4,445	$4.03M	0.0%	N/A	0.009%
2/17/2026	Laurion Capital Management LP	600	$0.54M	0.0%	N/A	0.001%
2/17/2026	Northern Trust Corp	483,700	$438.41M	0.1%	-0.4%	1.010%
2/17/2026	Price T Rowe Associates Inc. MD	1,691,394	$1.53B	0.2%	+7.5%	3.530%
2/17/2026	T. Rowe Price Investment Management Inc.	476,308	$431.71M	0.5%	-36.6%	0.994%
2/17/2026	Sherman Porfolios LLC	2,145	$1.94M	0.1%	N/A	0.004%
2/17/2026	GeoWealth Management LLC	222	$0.20M	0.0%	N/A	0.000%
2/17/2026	Quantitative Investment Management LLC	627	$0.57M	0.1%	N/A	0.001%
2/17/2026	Advisory Services Network LLC	933	$0.85M	0.0%	-3.5%	0.002%
2/17/2026	Adage Capital Partners GP L.L.C.	77,852	$70.56M	0.1%	-6.4%	0.162%
2/17/2026	Tower Research Capital LLC TRC	9,430	$8.55M	0.2%	+266.1%	0.020%
2/17/2026	Public Employees Retirement System of Ohio	22,123	$20.05M	0.1%	-1.6%	0.046%
2/17/2026	California State Teachers Retirement System	74,069	$67.13M	0.1%	-0.9%	0.155%
2/17/2026	Private Advisor Group LLC	4,607	$4.18M	0.0%	-15.6%	0.010%
2/17/2026	Russell Investments Group Ltd.	46,749	$42.43M	0.0%	+16.5%	0.098%
2/17/2026	Lombard Odier Asset Management Europe Ltd	13,650	$12.37M	0.6%	-99.9%	0.028%
2/17/2026	State of Wisconsin Investment Board	29,357	$26.61M	0.1%	+4.3%	0.061%
2/17/2026	Captrust Financial Advisors	1,252	$1.13M	0.0%	+9.0%	0.003%
2/17/2026	Artisan Partners Limited Partnership	153,862	$139.45M	0.2%	-20.2%	0.321%
2/17/2026	Fred Alger Management LLC	17,599	$15.98M	0.1%	+16.0%	0.037%
2/17/2026	&PARTNERS	4,341	$3.94M	0.0%	-16.2%	0.009%
2/17/2026	Siemens Fonds Invest GmbH	875	$0.81M	0.0%	+11.5%	0.002%
2/17/2026	Blair William & Co. IL	13,647	$12.37M	0.0%	+34.0%	0.028%
2/17/2026	Royal Bank of Canada	176,580	$160.05M	0.0%	-14.5%	0.369%
2/17/2026	Night Squared LP	2,707	$2.45M	0.7%	N/A	0.006%
2/17/2026	Polar Capital Holdings Plc	9,180	$8.32M	0.0%	-49.1%	0.019%
2/17/2026	Rakuten Investment Management Inc.	13,307	$12.38M	0.0%	-93.8%	0.028%
2/17/2026	L2 Asset Management LLC	230	$0.21M	0.0%	N/A	0.000%
2/17/2026	71 West Capital Partners	343	$0.31M	0.0%	N/A	0.001%

Data available starting January 2016

Monolithic Power Systems, Inc. engages in the design, development, marketing, and sale of semiconductor-based power electronics solutions for the storage and computing, automotive, enterprise data, consumer, communications, and industrial markets. The company provides direct current (DC) to DC integrated circuits (ICs) that are used to convert and control voltages of various electronic systems, such as cloud-based CPU servers, server artificial intelligence applications, storage applications, commercial notebooks, digital cockpit, power sources, home appliances, 4G and 5G infrastructure, and satellite communications applications. It offers lighting control ICs for backlighting that are used in systems, which provide the light source for LCD panels in computers and notebooks, monitors, car navigation systems, and televisions, as well as for general illumination products. The company sells its products through third-party distributors, value-added resellers, directly to original equipment manufacturers, original design manufacturers, electronic manufacturing service providers, and other end customers. It serves China, Taiwan, South Korea, Europe, Japan, Southeast Asia, the United States, and internationally. Monolithic Power Systems, Inc. was incorporated in 1997 and is headquartered in Kirkland, Washington.

Today's Range

Now: $1,068.85

$1,050.90

$1,103.27

50 Day Range

MA: $1,111.40

$967.16

$1,231.95

52 Week Range

Now: $1,068.85

$438.86

$1,256.22

Volume

1,035,175 shs

Average Volume

541,456 shs

Market Capitalization

$52.50 billion

P/E Ratio

83.90

Dividend Yield

0.58%

Beta

1.45

Who are the company insiders with the largest holdings of Monolithic Power Systems?: Monolithic Power Systems' top insider shareholders include:
Michael Hsing (CEO)
Deming Xiao (EVP)
Saria Tseng (EVP)
Maurice Sciammas (EVP)
Theodore Blegen (CFO)
Victor K Lee (Director)
Jeff Zhou (Director)
Kuo Wei Herbert Chang (Director)
Carintia Martinez (Director)
Learn More about top insider investors at Monolithic Power Systems.
Who are the major institutional investors of Monolithic Power Systems?: Monolithic Power Systems' top institutional shareholders include:
Vanguard Group Inc. — 12.60%
State Street Corp — 4.55%
Corient Private Wealth LLC — 4.27%
Price T Rowe Associates Inc. MD — 3.53%
Invesco Ltd. — 2.99%
Geode Capital Management LLC — 2.89%
Learn More about top institutional investors of Monolithic Power Systems stock.
Which institutional investors are selling Monolithic Power Systems stock?: Within the previous quarter, MPWR stock was sold by these institutional investors:
Lombard Odier Asset Management Europe Ltd
JPMorgan Chase & Co.
T. Rowe Price Investment Management Inc.
Van ECK Associates Corp
Brown Advisory Inc.
Rakuten Investment Management Inc.
FIL Ltd
Macquarie Group Ltd.
Within the previous year, company insiders that have sold Monolithic Power Systems company stock include:
Michael Hsing (CEO)
Deming Xiao (EVP)
Saria Tseng (EVP)
Maurice Sciammas (EVP)
Theodore Blegen (CFO)
Victor K Lee (Director)
Jeff Zhou (Director)
Kuo Wei Herbert Chang (Director)
Learn More investors selling Monolithic Power Systems stock.
Which institutional investors are buying Monolithic Power Systems stock?: In the previous quarter, MPWR stock was purchased by institutional investors including:
Corient Private Wealth LLC
Norges Bank
Invesco Ltd.
SG Americas Securities LLC
First Trust Advisors LP
Barclays PLC
Price T Rowe Associates Inc. MD
Thrivent Financial for Lutherans