Maurice Sciammas Monolithic Power Systems Inc (MPWR) insider trading activity

Maurice Sciammas is EVP, WW Sales & Marketing of MONOLITHIC POWER SYSTEMS INC. Currently has a direct ownership of 144,330 shares of MPWR, which is worth approximately $133 Million. The most recent transaction as insider was on Nov 24, 2025, when has been sold 3,976 shares (Common Stock) at a price of $895.23 per share, resulting in proceeds of $3,559,434. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 144K

41.08% 3M change

40.18% 12M change

Total Value Held $133 Million

Maurice Sciammas Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Nov 24 2025	SELL Open market or private sale	$3,559,434 $895.23 p/Share	3,976 Reduced 2.68%	144,330 Common Stock
Nov 19 2025	SELL Open market or private sale	$6,111,842 $868.9 p/Share	7,034 Reduced 3.84%	176,272 Common Stock
Nov 19 2025	SELL Open market or private sale	$24,635,529 $880.91 p/Share	27,966 Reduced 15.87%	148,306 Common Stock
Oct 30 2025	SELL Payment of exercise price or tax liability	$59,813,490 $1096.63 p/Share	54,543 Reduced 22.93%	183,306 Common Stock
Oct 25 2025	BUY Grant, award, or other acquisition	-	135,520 Added 36.3%	237,849 Common Stock
Feb 10 2025	SELL Open market or private sale	$474,720 $717.1 p/Share	662 Reduced 0.64%	102,301 Common Stock
Nov 08 2024	SELL Open market or private sale	$662,611 $765.14 p/Share	866 Reduced 0.83%	102,963 Common Stock

Oct 07 2024	SELL Open market or private sale	$10,223,070 $929.37 p/Share	11,000 Reduced 9.58%	103,829 Common Stock
Aug 08 2024	SELL Open market or private sale	$668,637 $778.39 p/Share	859 Reduced 0.74%	114,812 Common Stock
Jul 22 2024	SELL Open market or private sale	$2,665,213 $831.58 p/Share	3,205 Reduced 2.7%	115,671 Common Stock
Jul 08 2024	SELL Open market or private sale	$9,283,156 $844.0 p/Share	10,999 Reduced 8.47%	118,876 Common Stock
May 08 2024	SELL Open market or private sale	$599,610 $690.0 p/Share	869 Reduced 0.66%	129,875 Common Stock
Apr 08 2024	SELL Open market or private sale	$7,491,659 $681.06 p/Share	11,000 Reduced 7.76%	130,744 Common Stock
Feb 08 2024	SELL Open market or private sale	$584,120 $680.0 p/Share	859 Reduced 0.6%	141,718 Common Stock
Feb 05 2024	SELL Open market or private sale	$629,462 $641.0 p/Share	982 Reduced 0.68%	142,577 Common Stock
Jan 12 2024	SELL Open market or private sale	$6,421,140 $583.74 p/Share	11,000 Reduced 7.12%	143,559 Common Stock
Jan 04 2024	SELL Open market or private sale	$16,129,069 $583.14 p/Share	27,659 Reduced 15.18%	154,559 Common Stock
Nov 08 2023	SELL Open market or private sale	$421,245 $490.39 p/Share	859 Reduced 0.47%	182,218 Common Stock
Nov 06 2023	SELL Open market or private sale	$484,047 $492.92 p/Share	982 Reduced 0.53%	183,077 Common Stock
Oct 02 2023	SELL Open market or private sale	$1,972,981 $458.3 p/Share	4,305 Reduced 2.29%	184,059 Common Stock
Aug 08 2023	SELL Open market or private sale	$463,447 $530.26 p/Share	874 Reduced 0.46%	188,339 Common Stock
Aug 04 2023	SELL Open market or private sale	$520,201 $526.52 p/Share	988 Reduced 0.52%	189,213 Common Stock
Jul 21 2023	SELL Open market or private sale	$5,258,425 $534.23 p/Share	9,843 Reduced 4.92%	190,201 Common Stock
Jul 03 2023	SELL Open market or private sale	$2,315,185 $537.79 p/Share	4,305 Reduced 2.11%	200,044 Common Stock
May 09 2023	SELL Open market or private sale	$351,181 $409.78 p/Share	857 Reduced 0.42%	204,349 Common Stock

Maurice Sciammas

EVP, WW Sales & Marketing

Kirkland, WA

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