Saria Tseng Monolithic Power Systems Inc (MPWR) insider trading activity

Saria Tseng is EVP & General Counsel of MONOLITHIC POWER SYSTEMS INC. Currently has a direct ownership of 167,331 shares of MPWR, which is worth approximately $154 Million. The most recent transaction as insider was on Nov 26, 2025, when has been sold 20,000 shares (Common Stock) at a price of $926.44 per share, resulting in proceeds of $18,528,800. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 167K

15.8% 3M change

4.82% 12M change

Total Value Held $154 Million

Saria Tseng Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Nov 26 2025	SELL Open market or private sale	$18,528,800 $926.44 p/Share	20,000 Reduced 10.68%	167,331 Common Stock
Nov 25 2025	SELL Open market or private sale	$18,068,600 $903.43 p/Share	20,000 Reduced 9.65%	187,331 Common Stock
Oct 30 2025	SELL Payment of exercise price or tax liability	$59,813,490 $1096.63 p/Share	54,543 Reduced 20.83%	207,331 Common Stock
Oct 25 2025	BUY Grant, award, or other acquisition	-	135,520 Added 34.1%	261,874 Common Stock
Oct 24 2025	SELL Open market or private sale	$1,413,905 $1087.62 p/Share	1,300 Reduced 1.02%	126,354 Common Stock
Oct 16 2025	SELL Open market or private sale	$2,885,224 $1026.04 p/Share	2,812 Reduced 2.16%	127,654 Common Stock
Oct 15 2025	SELL Open market or private sale	$14,254,973 $1016.18 p/Share	14,028 Reduced 9.71%	130,466 Common Stock

Sep 18 2025	SELL Open market or private sale	$13,268,669 $914.45 p/Share	14,510 Reduced 9.13%	144,494 Common Stock
Feb 10 2025	SELL Open market or private sale	$475,437 $717.1 p/Share	663 Reduced 0.42%	158,977 Common Stock
Nov 08 2024	SELL Open market or private sale	$662,611 $765.14 p/Share	866 Reduced 0.54%	159,640 Common Stock
Aug 08 2024	SELL Open market or private sale	$668,637 $778.39 p/Share	859 Reduced 0.53%	160,506 Common Stock
Jul 22 2024	SELL Open market or private sale	$2,665,213 $831.58 p/Share	3,205 Reduced 1.95%	161,365 Common Stock
Jul 02 2024	SELL Open market or private sale	$1,532,199 $824.65 p/Share	1,858 Reduced 1.12%	164,570 Common Stock
Jul 01 2024	SELL Open market or private sale	$29,850,220 $804.74 p/Share	37,093 Reduced 18.23%	166,428 Common Stock
May 08 2024	SELL Open market or private sale	$599,627 $690.02 p/Share	869 Reduced 0.43%	203,521 Common Stock
Feb 08 2024	SELL Open market or private sale	$584,120 $680.0 p/Share	859 Reduced 0.42%	204,339 Common Stock
Feb 05 2024	SELL Open market or private sale	$629,462 $641.0 p/Share	982 Reduced 0.48%	205,198 Common Stock
Jan 09 2024	SELL Open market or private sale	$834,000 $600.0 p/Share	1,390 Reduced 0.67%	206,180 Common Stock
Jan 04 2024	SELL Open market or private sale	$14,761,605 $583.14 p/Share	25,314 Reduced 10.87%	207,570 Common Stock
Dec 13 2023	SELL Open market or private sale	$11,166,000 $600.0 p/Share	18,610 Reduced 7.4%	232,884 Common Stock
Nov 08 2023	SELL Open market or private sale	$421,245 $490.39 p/Share	859 Reduced 0.34%	251,494 Common Stock
Nov 06 2023	SELL Open market or private sale	$484,047 $492.92 p/Share	982 Reduced 0.39%	252,353 Common Stock
Oct 02 2023	SELL Open market or private sale	$1,972,981 $458.3 p/Share	4,305 Reduced 1.67%	253,335 Common Stock
Aug 08 2023	SELL Open market or private sale	$463,455 $530.27 p/Share	874 Reduced 0.34%	257,623 Common Stock
Aug 04 2023	SELL Open market or private sale	$520,201 $526.52 p/Share	988 Reduced 0.38%	258,497 Common Stock

Also insider at

SMCI

Super Micro Computer, Inc. Technology

Director

Saria Tseng

EVP & General Counsel

Kirkland, WA

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