MONOLITHIC POWER SYSTEMS INC (MPWR) - Insider Trading & Ownership

Real time insider trading transaction history:

  • Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
  • Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
Time period
Insider Trading Transactions for MONOLITHIC POWER SYSTEMS INC
Goto 0, 1, 2, ...10, 11, Next
Common stock purchase or sale:
Transaction
Date
Reported
DateTime
CompanySymbolInsider
Relationship
Shares
Traded
Average
Price
Total
Amount
Shares
Owned
Filing
2025-11-12
Sale
2025-11-13
4:15 pm
MONOLITHIC POWER SYSTEMS INCMPWRHsing Michael
CEO
37,000$965.52$35,724,3801,064,534
(Indirect
Direct)
View
2025-11-11
Sale
2025-11-13
4:14 pm
MONOLITHIC POWER SYSTEMS INCMPWRHsing Michael
CEO
40,000$958.39$38,335,7211,101,534
(Indirect
Direct)
View
2025-11-05
Sale
2025-11-06
6:53 pm
MONOLITHIC POWER SYSTEMS INCMPWRSciammas Maurice
EVP, WW Sales & Marketing
200$986.81$197,362279,336
(Indirect
Direct)
View
2025-11-03
Sale
2025-11-04
7:31 pm
MONOLITHIC POWER SYSTEMS INCMPWRBLEGEN THEODORE
EVP and CFO
3,000$1,024$3,073,27884,994
(Indirect
Direct)
View
2025-10-24
Sale
2025-10-24
5:22 pm
MONOLITHIC POWER SYSTEMS INCMPWRTseng Saria
EVP & General Counsel
1,300$1,088$1,413,906126,354
(Direct)
View
2025-10-15
Sale
2025-10-17
12:11 pm
MONOLITHIC POWER SYSTEMS INCMPWRTseng Saria
EVP & General Counsel
16,840$1,018$17,139,295127,654
(Direct)
View
2025-10-01
Sale
2025-10-01
8:51 pm
MONOLITHIC POWER SYSTEMS INCMPWRBLEGEN THEODORE
EVP and CFO
3,000$913.22$2,739,64848,602
(Indirect
Direct)
View
2025-09-18
Sale
2025-09-23
2:56 pm
MONOLITHIC POWER SYSTEMS INCMPWRMartinez Carintia
Director
1,400$900$1,260,000878
(Direct)
View
2025-09-18
Sale
2025-09-23
2:35 pm
MONOLITHIC POWER SYSTEMS INCMPWRTseng Saria
EVP & General Counsel
14,510$914.45$13,268,670144,494
(Direct)
View
2025-09-02
Sale
2025-09-03
6:39 pm
MONOLITHIC POWER SYSTEMS INCMPWRBLEGEN THEODORE
EVP and CFO
3,000$814.34$2,443,03251,601
(Indirect
Direct)
View
2025-08-29
Sale
2025-09-02
4:04 pm
MONOLITHIC POWER SYSTEMS INCMPWRElmiger Eugen J
Director
4,000$846.71$3,386,84117,213
(Direct)
View
2025-08-27
Sale
2025-08-28
2:23 pm
MONOLITHIC POWER SYSTEMS INCMPWRZhou Jeff
Director
193$870$167,9105,611
(Direct)
View
2025-08-15
Sale
2025-08-18
5:36 pm
MONOLITHIC POWER SYSTEMS INCMPWRHsing Michael
CEO
20,231$829.1$16,773,550960,532
(Indirect
Direct)
View
2025-08-13
Sale
2025-08-15
2:54 pm
MONOLITHIC POWER SYSTEMS INCMPWRZhou Jeff
Director
400$850$340,0005,804
(Direct)
View
2025-08-12
Sale
2025-08-13
5:47 pm
MONOLITHIC POWER SYSTEMS INCMPWRZhou Jeff
Director
200$830$166,0006,204
(Direct)
View
2025-08-01
Sale
2025-08-04
7:58 pm
MONOLITHIC POWER SYSTEMS INCMPWRXiao Deming
EVP, Global Operations
39,999$780$31,199,220145,451
(Indirect
Direct)
View
2025-08-01
Sale
2025-08-04
7:31 pm
MONOLITHIC POWER SYSTEMS INCMPWRBLEGEN THEODORE
EVP and CFO
3,000$750$2,250,00054,601
(Indirect
Direct)
View
2025-07-01
Sale
2025-07-02
11:46 am
MONOLITHIC POWER SYSTEMS INCMPWRBLEGEN THEODORE
EVP and CFO
6,000$750$4,500,00057,601
(Indirect
Direct)
View
2025-05-13
Sale
2025-05-13
6:09 pm
MONOLITHIC POWER SYSTEMS INCMPWRCHANG KUO WEI HERBERT
Director
50$738$36,900626
(Direct)
View
2025-05-12
Sale
2025-05-12
8:24 pm
MONOLITHIC POWER SYSTEMS INCMPWRCHANG KUO WEI HERBERT
Director
100$698$69,800676
(Direct)
View
2025-05-12
Sale
2025-05-12
6:02 pm
MONOLITHIC POWER SYSTEMS INCMPWRSciammas Maurice
EVP, WW Sales & Marketing
12,000$701$8,412,000199,555
(Indirect
Direct)
View
2025-05-08
Sale
2025-05-09
6:53 pm
MONOLITHIC POWER SYSTEMS INCMPWRCHANG KUO WEI HERBERT
Director
100$650$65,000776
(Direct)
View
2025-02-18
Sale
2025-02-20
7:01 pm
MONOLITHIC POWER SYSTEMS INCMPWRHsing Michael
CEO
5,200$700$3,640,000980,763
(Indirect
Direct)
View

Stock options: Exercise, Award, Grant, Conversion
Transaction
Date
Reported
DateTime
Exercisable
Expiration
CompanySymnbolInsider
Relationship
Shares
Traded
Conversion
Price
Shares
Owned
Filing
2025-11-13
Gift
2025-11-14
6:31 pm
N/A
N/A
MONOLITHIC POWER SYSTEMS INCMPWRSciammas Maurice
EVP, WW Sales & Marketing
4,530$0252,676
(Indirect)
View
2025-10-30
Tax Withholding
2025-10-31
4:52 pm
N/A
N/A
MONOLITHIC POWER SYSTEMS INCMPWRHsing Michael
CEO
121,918$1,0971,141,534
(Direct)
View
2025-10-30
Tax Withholding
2025-10-31
4:45 pm
N/A
N/A
MONOLITHIC POWER SYSTEMS INCMPWRBLEGEN THEODORE
EVP and CFO
48,298$1,09787,994
(Direct)
View
2025-10-30
Tax Withholding
2025-10-31
4:44 pm
N/A
N/A
MONOLITHIC POWER SYSTEMS INCMPWRTseng Saria
EVP & General Counsel
54,543$1,097207,331
(Direct)
View
2025-10-30
Tax Withholding
2025-10-31
4:43 pm
N/A
N/A
MONOLITHIC POWER SYSTEMS INCMPWRSciammas Maurice
EVP, WW Sales & Marketing
54,543$1,097279,536
(Direct)
View
2025-10-30
Tax Withholding
2025-10-31
4:39 pm
N/A
N/A
MONOLITHIC POWER SYSTEMS INCMPWRXiao Deming
EVP, Global Operations
54,543$1,097226,428
(Direct)
View
2025-10-25
Option Award
2025-10-28
9:38 pm
N/A
N/A
MONOLITHIC POWER SYSTEMS INCMPWRTseng Saria
EVP & General Counsel
135,520$0261,874
(Direct)
View
2025-10-25
Option Award
2025-10-28
9:38 pm
N/A
N/A
MONOLITHIC POWER SYSTEMS INCMPWRBLEGEN THEODORE
EVP and CFO
87,690$0136,292
(Direct)
View
2025-10-25
Option Award
2025-10-28
9:37 pm
N/A
N/A
MONOLITHIC POWER SYSTEMS INCMPWRHsing Michael
CEO
302,920$01,263,452
(Direct)
View
2025-10-25
Option Award
2025-10-28
9:36 pm
N/A
N/A
MONOLITHIC POWER SYSTEMS INCMPWRXiao Deming
EVP, Global Operations
135,520$0280,971
(Direct)
View
2025-10-25
Option Award
2025-10-28
9:35 pm
N/A
N/A
MONOLITHIC POWER SYSTEMS INCMPWRSciammas Maurice
EVP, WW Sales & Marketing
135,520$0334,079
(Direct)
View
2025-08-19
Gift
2025-08-21
5:09 pm
N/A
N/A
MONOLITHIC POWER SYSTEMS INCMPWRSciammas Maurice
EVP, WW Sales & Marketing
2,499$0185,327
(Indirect)
View
2025-08-11
Gift
2025-08-12
5:45 pm
N/A
N/A
MONOLITHIC POWER SYSTEMS INCMPWRXiao Deming
EVP, Global Operations
945$0145,451
(Indirect)
View
2025-08-06
Gift
2025-08-08
12:40 pm
N/A
N/A
MONOLITHIC POWER SYSTEMS INCMPWRSciammas Maurice
EVP, WW Sales & Marketing
8,254$0131,417
(Indirect)
View
2025-05-28
Gift
2025-05-30
4:32 pm
N/A
N/A
MONOLITHIC POWER SYSTEMS INCMPWRSciammas Maurice
EVP, WW Sales & Marketing
1,499$0183,828
(Indirect)
View
2025-05-09
Gift
2025-05-09
7:55 pm
N/A
N/A
MONOLITHIC POWER SYSTEMS INCMPWRSciammas Maurice
EVP, WW Sales & Marketing
1,878$0194,329
(Indirect)
View
2025-02-18
Gift
2025-02-20
7:02 pm
N/A
N/A
MONOLITHIC POWER SYSTEMS INCMPWRSciammas Maurice
EVP, WW Sales & Marketing
1,102$0192,451
(Indirect)
View
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