Monolithic Power Systems Inc - MPWR

Include option trades

Include indirect trades

Latest data: 6/18/2026 10:01:40 PM

EDGAR CIK

0001280452

1 Month 3 Month 6 Month 1 Year 2 Years

Buy Breakdown

Total $0

No buy transactions for this time period.

Sell Breakdown

Total $762,586,001

Monthly Totals

Transaction	Filed	Name	Type	Shares @ Price	Value	Balance change		Ownership
05/27/2026	05/29/2026	Tseng Saria EVP & General Counsel Officer	Sell	-7,565 @ $1,700.00	($12,860,500.00)	144,218	(-4.98%)	Direct
05/26/2026	05/28/2026	Dean Robert W Ii Interim CFO CFO	Sell	-22 @ $1,649.56	($36,290.32)	5,878	(-0.37%)	Direct
05/26/2026	05/27/2026	Zhou Jeff Director	Sell	-486 @ $1,680.00	($816,480.00)	3,800	(-11.34%)	Direct
05/22/2026	05/27/2026	Tseng Saria EVP & General Counsel Officer	Sell	-5,000 @ $1,586.43	($7,932,150.00)	151,783	(-3.19%)	Direct
05/18/2026	05/20/2026	Dean Robert W Ii Interim CFO CFO	Sell	-4 @ $1,563.28	($6,253.12)	5,900	(-0.07%)	Direct
05/18/2026	05/20/2026	Hsing Michael CEO CEO Director	Sell	-40,000 @ $1,482.75	($59,310,168.55)	848,263	(-4.50%)	Direct
05/15/2026 10b5-1	05/19/2026	Sciammas Maurice EVP, WW Sales & Marketing Officer	Sell	-12,000 @ $1,561.40	($18,736,849.52)	166,644	(-6.72%)	Direct
05/06/2026	05/08/2026	Elmiger Eugen J Director	Sell	-12,000 @ $1,584.96	($19,019,481.56)	5,402	(-68.96%)	Direct
05/06/2026	05/08/2026	Wynne Eileen Director	Sell	-335 @ $1,582.68	($530,197.80)	1,007	(-24.96%)	Direct
05/06/2026	05/08/2026	Xiao Deming EVP, Global Operations Officer	Sell	-30,000 @ $1,654.55	($49,636,560.49)	205,959	(-12.71%)	Direct
05/06/2026	05/06/2026	Zhou Jeff Director	Sell	-500 @ $1,650.00	($825,000.00)	4,286	(-10.45%)	Direct
05/05/2026	05/06/2026	Zhou Jeff Director	Sell	-1,014 @ $1,587.06	($1,609,282.72)	4,786	(-17.48%)	Direct
04/08/2026 10b5-1	04/10/2026	Tseng Saria EVP & General Counsel Officer	Sell	-8,963 @ $1,305.22	($11,698,654.18)	156,983	(-5.40%)	Direct
04/06/2026 10b5-1	04/08/2026	Tseng Saria EVP & General Counsel Officer	Sell	-7,636 @ $1,167.95	($8,918,434.08)	165,946	(-4.40%)	Direct
04/01/2026 10b5-1	04/03/2026	Tseng Saria EVP & General Counsel Officer	Sell	-1,400 @ $1,133.52	($1,586,924.40)	173,582	(-0.80%)	Direct
03/30/2026 10b5-1	04/01/2026	Tseng Saria EVP & General Counsel Officer	Sell	-25,674 @ $1,010.50	($25,943,638.22)	174,982	(-12.80%)	Direct
02/12/2026 10b5-1	02/17/2026	Hsing Michael CEO CEO Director	Sell	-33,000 @ $1,171.83	($38,670,257.41)	888,234	(-3.58%)	Direct
02/11/2026 10b5-1	02/13/2026	Hsing Michael CEO CEO Director	Sell	-33,000 @ $1,188.92	($39,234,211.79)	921,234	(-3.46%)	Direct
02/10/2026 10b5-1	02/12/2026	Hsing Michael CEO CEO Director	Sell	-34,000 @ $1,142.28	($38,837,435.26)	954,234	(-3.44%)	Direct
02/09/2026 10b5-1	02/11/2026	Lee Victor K Director	Sell	-400 @ $1,212.16	($484,864.00)	27,756	(-1.42%)	Direct
02/06/2026	02/10/2026	Blegen Theodore EVP and CFO CFO	Sell	-21,725 @ $1,171.16	($25,443,531.38)	82,353	(-20.87%)	Direct
02/06/2026	02/10/2026	Hsing Michael CEO CEO Director	Sell	-54,923 @ $1,171.16	($64,323,823.90)	988,234	(-5.27%)	Direct
02/06/2026	02/10/2026	Sciammas Maurice EVP, WW Sales & Marketing Officer	Sell	-22,875 @ $1,171.16	($26,790,369.64)	178,625	(-11.35%)	Direct
02/06/2026	02/10/2026	Tseng Saria EVP & General Counsel Officer	Sell	-22,875 @ $1,171.16	($26,790,369.64)	200,626	(-10.23%)	Direct
02/06/2026	02/10/2026	Xiao Deming EVP, Global Operations Officer	Sell	-22,875 @ $1,171.16	($26,790,369.64)	235,932	(-8.84%)	Direct
02/02/2026 10b5-1	02/04/2026	Blegen Theodore EVP and CFO CFO	Sell	-3,000 @ $1,129.76	($3,389,266.28)	65,333	(-4.39%)	Direct
01/02/2026 10b5-1	01/06/2026	Blegen Theodore EVP and CFO CFO	Sell	-3,000 @ $940.47	($2,821,399.46)	68,332	(-4.21%)	Direct
01/02/2026 10b5-1	01/06/2026	Lee Victor K Director	Sell	-600 @ $930.86	($558,516.00)	27,967	(-2.10%)	Direct
12/24/2025 10b5-1	12/29/2025	Lee Victor K Director	Sell	-1,000 @ $951.72	($951,719.21)	28,567	(-3.38%)	Direct
12/01/2025 10b5-1	12/02/2025	Blegen Theodore EVP and CFO CFO	Sell	-3,000 @ $908.21	($2,724,623.44)	71,332	(-4.04%)	Direct
11/26/2025	11/28/2025	Tseng Saria EVP & General Counsel Officer	Sell	-20,000 @ $926.47	($18,529,315.61)	167,331	(-10.68%)	Direct
11/25/2025	11/25/2025	Chang Kuo Wei Herbert Director	Sell	-100 @ $896.97	($89,697.00)	426	(-19.01%)	Direct
11/25/2025	11/28/2025	Tseng Saria EVP & General Counsel Officer	Sell	-20,000 @ $904.18	($18,083,638.33)	187,331	(-9.65%)	Direct
11/24/2025	11/25/2025	Sciammas Maurice EVP, WW Sales & Marketing Officer	Sell	-3,976 @ $895.23	($3,559,434.48)	144,330	(-2.68%)	Direct
11/21/2025	11/24/2025	Chang Kuo Wei Herbert Director	Sell	-100 @ $873.97	($87,397.00)	526	(-15.97%)	Direct
11/19/2025	11/20/2025	Sciammas Maurice EVP, WW Sales & Marketing Officer	Sell	-27,966 @ $881.66	($24,656,386.86)	148,306	(-15.87%)	Direct
11/19/2025	11/20/2025	Sciammas Maurice EVP, WW Sales & Marketing Officer	Sell	-7,034 @ $870.21	($6,121,059.06)	176,272	(-3.84%)	Direct
11/12/2025	11/13/2025	Hsing Michael CEO CEO Director	Sell	-37,000 @ $965.52	($35,724,379.66)	918,669	(-3.87%)	Direct
11/11/2025	11/13/2025	Hsing Michael CEO CEO Director	Sell	-40,000 @ $958.39	($38,335,721.29)	955,669	(-4.02%)	Direct
11/03/2025 10b5-1	11/04/2025	Blegen Theodore EVP and CFO CFO	Sell	-3,000 @ $1,024.43	($3,073,277.54)	74,332	(-3.88%)	Direct
10/24/2025 10b5-1	10/24/2025	Tseng Saria EVP & General Counsel Officer	Sell	-1,300 @ $1,087.62	($1,413,906.00)	126,354	(-1.02%)	Direct
10/16/2025 10b5-1	10/17/2025	Tseng Saria EVP & General Counsel Officer	Sell	-2,812 @ $1,025.72	($2,884,322.27)	127,654	(-2.16%)	Direct
10/15/2025 10b5-1	10/17/2025	Tseng Saria EVP & General Counsel Officer	Sell	-14,028 @ $1,016.18	($14,254,973.04)	130,466	(-9.71%)	Direct
10/01/2025 10b5-1	10/01/2025	Blegen Theodore EVP and CFO CFO	Sell	-3,000 @ $913.22	($2,739,647.60)	37,940	(-7.33%)	Direct
09/18/2025 10b5-1	09/23/2025	Martinez Carintia Director	Sell	-1,400 @ $900.00	($1,260,000.00)	878	(-61.46%)	Direct
09/18/2025 10b5-1	09/23/2025	Tseng Saria EVP & General Counsel Officer	Sell	-14,510 @ $914.45	($13,268,669.50)	144,494	(-9.13%)	Direct
09/02/2025 10b5-1	09/03/2025	Blegen Theodore EVP and CFO CFO	Sell	-3,000 @ $814.34	($2,443,032.12)	40,939	(-6.83%)	Direct
08/29/2025	09/02/2025	Elmiger Eugen J Director	Sell	-4,000 @ $846.71	($3,386,841.00)	17,213	(-18.86%)	Direct
08/27/2025	08/28/2025	Zhou Jeff Director	Sell	-193 @ $870.00	($167,910.00)	5,611	(-3.33%)	Direct
08/15/2025	08/18/2025	Hsing Michael CEO CEO Director	Sell	-20,231 @ $829.10	($16,773,550.18)	814,667	(-2.42%)	Direct
08/13/2025	08/15/2025	Zhou Jeff Director	Sell	-400 @ $850.00	($340,000.00)	5,804	(-6.45%)	Direct
08/12/2025	08/13/2025	Zhou Jeff Director	Sell	-200 @ $830.00	($166,000.00)	6,204	(-3.12%)	Direct
08/01/2025	08/04/2025	Blegen Theodore EVP and CFO CFO	Sell	-3,000 @ $750.00	($2,250,000.00)	43,939	(-6.39%)	Direct
08/01/2025	08/04/2025	Xiao Deming EVP, Global Operations Officer	Sell	-39,999 @ $780.00	($31,199,220.00)	121,605	(-24.75%)	Direct
07/01/2025	07/02/2025	Blegen Theodore EVP and CFO CFO	Sell	-6,000 @ $750.00	($4,500,000.00)	46,939	(-11.33%)	Direct

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Monolithic Power Systems Inc - MPWR

Latest data: 6/18/2026 10:01:40 PM

Buy Breakdown

Total $0

Sell Breakdown

Total $762,586,001

Monthly Totals