Insider Transactions in Q3 2025 at Monolithic Power Systems Inc (MPWR)
Insider Transaction List (Q3 2025)
| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Sep 18
2025
|
Carintia Martinez |
SELL
Open market or private sale
|
Direct |
1,400
-61.46%
|
$1,260,000
$900.0 P/Share
|
|
Sep 18
2025
|
Saria Tseng EVP & General Counsel |
SELL
Open market or private sale
|
Direct |
14,510
-9.13%
|
$13,262,140
$914.45 P/Share
|
|
Sep 02
2025
|
Theodore Blegen EVP and CFO |
SELL
Open market or private sale
|
Direct |
3,000
-0.5%
|
$2,439,000
$813.62 P/Share
|
|
Aug 29
2025
|
Eugen J Elmiger |
SELL
Open market or private sale
|
Direct |
4,000
-3.41%
|
$3,384,000
$846.86 P/Share
|
|
Aug 27
2025
|
Jeff Zhou |
SELL
Open market or private sale
|
Direct |
193
-3.33%
|
$167,910
$870.0 P/Share
|
|
Aug 19
2025
|
Maurice Sciammas EVP, WW Sales & Marketing |
BUY
Bona fide gift
|
Indirect |
1,499
+50.0%
|
-
|
|
Aug 19
2025
|
Maurice Sciammas EVP, WW Sales & Marketing |
SELL
Bona fide gift
|
Indirect |
2,499
-30.46%
|
-
|
|
Aug 15
2025
|
Michael Hsing CEO |
SELL
Open market or private sale
|
Direct |
20,231
-0.22%
|
$16,791,730
$830.68 P/Share
|
|
Aug 13
2025
|
Jeff Zhou |
SELL
Open market or private sale
|
Direct |
400
-6.45%
|
$340,000
$850.0 P/Share
|
|
Aug 12
2025
|
Jeff Zhou |
SELL
Open market or private sale
|
Direct |
200
-3.12%
|
$166,000
$830.0 P/Share
|
|
Aug 11
2025
|
Deming Xiao EVP, Global Operations |
SELL
Bona fide gift
|
Direct |
945
-0.78%
|
-
|
|
Aug 11
2025
|
Deming Xiao EVP, Global Operations |
BUY
Bona fide gift
|
Indirect |
945
+17.89%
|
-
|
|
Aug 06
2025
|
Maurice Sciammas EVP, WW Sales & Marketing |
SELL
Bona fide gift
|
Indirect |
4,836
-12.91%
|
-
|
|
Aug 06
2025
|
Maurice Sciammas EVP, WW Sales & Marketing |
BUY
Bona fide gift
|
Indirect |
4,836
+9.72%
|
-
|
|
Aug 01
2025
|
Deming Xiao EVP, Global Operations |
SELL
Open market or private sale
|
Direct |
39,999
-24.75%
|
$31,199,220
$780.0 P/Share
|
|
Aug 01
2025
|
Theodore Blegen EVP and CFO |
SELL
Open market or private sale
|
Direct |
3,000
-6.39%
|
$2,250,000
$750.0 P/Share
|
|
Jul 01
2025
|
Theodore Blegen EVP and CFO |
SELL
Open market or private sale
|
Direct |
6,000
-11.33%
|
$4,500,000
$750.0 P/Share
|