Home About FAQ Contact Key Subscribe
 
Transaction Types Key To InsiderInsights' Infobase
 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
Reduced Version of Subscription Insider Search
Check all filing types
Uncheck all filing types
Remove The Noise What is the 'Remove The Noise' function?
Insider Portfolio Alerts
Free real time insider alerts
Top Trade Alerts
Free insider trades intra-day
Special Screens Report
Free insider special screens report
Our Input Date Search is an excellent tool to examine the latest insider trades for new long and short investment ideas, but it is only available to paid subscribers.

Click Here to Subscribe

close window
Feature available to paying subscribers only. Subscriber output is also not separated on different pages, so that print outs and Excel downloads contain all of a search's information.

Click Here to Subscribe

close window

Detailed Insider History for:
MONOLITHIC POWER SYSTEMS INC: MPWR
Price: 6/27/25 52-Wk
High		 52-Wk
Low		 Mkt Cap (mm) Shrs Out (mm) 3-Mth Ave
Vol (m)		 Ind. Yield Short Int
% Float		 Inst. Owned Insider Owned
$736.03 $959.64 $438.86 $35,241 48 843 0.9% 4.6% 100.91% 3.42%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Electronic And Other Electrical Equipment And Components, Except Computer Equipment Semiconductors & Related Devices
click column headers to sort
#
View Form
Insider Statistics
T N H M S
Filer Name
Insider Title
Trans Type
Dollar Value
Shares Traded
Trans Date From
Trans Date To
Trans Price From
Trans Price To
Total Holdings
Delta % Owned
Owned
Other Info
Input Date
1
1y
288
32%
19%
1
HSING MICHAEL
CEO,DIR
S
$2,171,708
2,790
---
8/8/24
---
$778.39
865,332
-0.3
D
R
8/12/24 - 2:35:55 pm
2
1y
132
18%
37%
1
BLEGEN THEODORE
VP,CFO
S
$2,131,264
2,500
---
8/1/24
$842.43
$859.12
64,906
-3.7
D
---
8/2/24 - 6:11:00 pm
3
1y
307
13%
33%
1
XIAO DEMING
VP,OO
S
$2,665,214
3,205
---
7/22/24
---
$831.58
203,213
-1.6
D
R
7/24/24 - 4:44:52 pm
4
1y
193
12%
38%
1
TSENG SARIA
VP,GC
S
$2,665,214
3,205
---
7/22/24
---
$831.58
161,365
-1.9
D
R
7/24/24 - 4:43:11 pm
5
1y
246
17%
29%
1
SCIAMMAS MAURICE
VP,SO
S
$2,665,214
3,205
---
7/22/24
---
$831.58
115,671
-2.7
D
R
7/24/24 - 4:41:54 pm
6
1y
288
32%
19%
1
HSING MICHAEL
CEO,DIR
S
$7,994,810
9,614
---
7/22/24
---
$831.58
868,122
-1.1
D
R
7/24/24 - 4:40:24 pm
7
1y
132
18%
37%
1
BLEGEN THEODORE
VP,CFO
S
$2,145,477
2,580
---
7/22/24
---
$831.58
67,406
-3.7
D
R
7/24/24 - 4:39:09 pm
8
1y
246
17%
29%
1
SCIAMMAS MAURICE
VP,SO
S
$9,281,285
10,999
---
7/8/24
$839.89
$848.48
118,876
-8.5
D
---
7/10/24 - 11:22:17 am
9
1y
193
12%
38%
1
TSENG SARIA
VP,GC
S
$1,532,200
1,858
---
7/2/24
---
$824.65
164,570
-1.1
D
---
7/2/24 - 6:27:53 pm
10
1y
132
18%
37%
1
BLEGEN THEODORE
VP,CFO
S
$2,010,485
2,500
---
7/1/24
$794.59
$807.88
69,986
-3.4
D
---
7/2/24 - 6:24:42 pm
11
1y
288
32%
19%
1
HSING MICHAEL
CEO,DIR
S
$2,149,816
2,672
---
7/1/24
$794.69
$807.88
877,736
-0.3
D
---
7/2/24 - 11:28:56 am
12
1y
193
12%
38%
1
TSENG SARIA
VP,GC
S
$29,978,650
37,093
---
7/1/24
$794.69
$816.34
166,428
-18.2
D
---
7/2/24 - 11:26:59 am
13
1y
15
7%
33%
1
LEE VICTOR K
DIR
S
$820,460
1,000
---
6/28/24
---
$820.46
29,232
-3.3
D
---
7/1/24 - 6:43:07 pm
14
1y
288
32%
19%
1
HSING MICHAEL
CEO,DIR
S
$5,848,606
8,000
---
6/3/24
$714.56
$746.35
880,408
-0.9
D
---
6/5/24 - 2:15:43 pm
15
1y
307
13%
33%
1
XIAO DEMING
VP,OO
S
$1,000,220
1,300
---
5/22/24
---
$769.40
206,418
-0.6
D
---
5/22/24 - 8:20:47 pm
16
1y
87
29%
24%
2
CHANG KUO WEI HERBERT
DIR
S
$150,000
200
---
5/20/24
---
$750.00
741
-21.3
D
---
5/22/24 - 6:09:57 pm
17
1y
28
14%
36%
1
ZHOU JEFF
DIR
S
$150,000
200
---
5/20/24
---
$750.00
6,069
-3.2
D
---
5/22/24 - 6:01:04 pm
18
1y
87
29%
24%
2
CHANG KUO WEI HERBERT
DIR
S
$147,000
200
---
5/15/24
$730.00
$740.00
941
-17.5
D
---
5/15/24 - 6:52:40 pm
19
    
 
SCIAMMAS MAURICE
VP,SO
JS
---
5,072
---
5/13/24
---
---
13,424
-27.4
I
---
5/15/24 - 5:21:48 pm
20
    
 
SCIAMMAS MAURICE
VP,SO
JB
---
5,072
---
5/13/24
---
---
32,064
18.8
I
---
5/15/24 - 5:21:48 pm
21
    
 
XIAO DEMING
VP,OO
JS
---
29
---
5/10/24
---
---
207,718
-0.0
D
---
5/10/24 - 6:39:39 pm
22
1y
193
12%
38%
1
TSENG SARIA
VP,GC
S
$599,627
869
---
5/8/24
---
$690.02
203,521
-0.4
D
R
5/9/24 - 12:53:26 pm
23
1y
246
17%
29%
1
SCIAMMAS MAURICE
VP,SO
S
$599,610
869
---
5/8/24
---
$690.00
129,875
-0.7
D
R
5/9/24 - 12:52:07 pm
24
1y
132
18%
37%
1
BLEGEN THEODORE
VP,CFO
S
$508,515
737
---
5/8/24
---
$689.98
74,986
-1.0
D
R
5/9/24 - 12:50:40 pm
25
1y
288
32%
19%
1
HSING MICHAEL
CEO,DIR
S
$1,948,560
2,824
---
5/8/24
---
$690.00
888,408
-0.3
D
R
5/9/24 - 12:49:21 pm
26
1y
307
13%
33%
1
XIAO DEMING
VP,OO
S
$599,627
869
---
5/8/24
---
$690.02
207,747
-0.4
D
R
5/9/24 - 12:47:39 pm
27
1y
132
18%
37%
1
BLEGEN THEODORE
VP,CFO
S
$1,658,215
2,500
---
5/1/24
$658.90
$670.08
75,723
-3.2
D
---
5/3/24 - 11:41:39 am
28
1y
288
32%
19%
1
HSING MICHAEL
CEO,DIR
S
$5,294,840
8,000
---
5/1/24
$652.81
$670.09
891,232
-0.9
D
---
5/3/24 - 11:40:25 am
29
1y
246
17%
29%
1
SCIAMMAS MAURICE
VP,SO
S
$7,500,104
11,000
---
4/8/24
$668.76
$690.15
130,744
-7.8
D
---
4/9/24 - 11:14:56 am
30
1y
288
32%
19%
1
HSING MICHAEL
CEO,DIR
S
$5,419,521
8,000
---
4/1/24
$670.56
$687.45
899,232
-0.9
D
---
4/3/24 - 7:03:34 pm
31
    
 
SCIAMMAS MAURICE
VP,SO
JS
---
1,172
---
4/1/24
---
---
22,098
-5.0
I
---
4/3/24 - 6:31:04 pm
32
    
 
SCIAMMAS MAURICE
VP,SO
JB
---
1,172
---
4/1/24
---
---
26,992
4.5
I
---
4/3/24 - 6:31:04 pm
33
1y
132
18%
37%
1
BLEGEN THEODORE
VP,CFO
S
$1,693,493
2,500
---
4/1/24
$670.56
$687.44
78,223
-3.1
D
---
4/3/24 - 4:17:56 pm
34
1y
288
32%
19%
1
HSING MICHAEL
CEO,DIR
S
$5,665,208
7,800
---
3/1/24
$718.52
$733.37
907,232
-0.9
D
---
3/4/24 - 11:09:33 am
35
1y
288
32%
19%
1
HSING MICHAEL
CEO,DIR
JS*
$143,413
200
---
3/1/24
$716.82
$717.31
914,993
-0.0
D
---
3/4/24 - 11:09:33 am
36
1y
132
18%
37%
1
BLEGEN THEODORE
CFO
S
$1,670,718
2,300
---
3/1/24
$719.48
$733.37
80,723
-2.8
D
---
3/4/24 - 11:07:52 am
37
1y
132
18%
37%
1
BLEGEN THEODORE
CFO
JS*
$143,670
200
---
3/1/24
---
$718.35
82,973
-0.2
D
---
3/4/24 - 11:07:52 am
38
1y
87
29%
24%
2
CHANG KUO WEI HERBERT
DIR
S
$176,585
250
---
2/29/24
---
$706.34
1,141
-18.0
D
---
2/29/24 - 6:10:06 pm
39
1y
87
29%
24%
2
CHANG KUO WEI HERBERT
DIR
S
$187,500
250
---
2/22/24
---
$750.00
1,391
-15.2
D
---
2/23/24 - 11:25:10 am
40
    
 
MOYER JAMES C
DIR
JS
---
4,000
---
2/13/24
---
---
33,731
-10.6
I
---
2/14/24 - 5:37:55 pm
41
    
 
MOYER JAMES C
DIR
JB
---
4,000
---
2/13/24
---
---
4,000
New
I
---
2/14/24 - 5:37:55 pm
42
1y
28
14%
36%
1
ZHOU JEFF
DIR
S
$150,114
200
---
2/12/24
---
$750.57
6,269
-3.1
D
---
2/13/24 - 11:14:52 am
43
    
 
MOYER JAMES C
DIR
JS
---
4,000
---
2/12/24
---
---
37,731
-9.6
I
---
2/12/24 - 5:23:18 pm
44
    
 
MOYER JAMES C
DIR
JB
---
4,000
---
2/12/24
---
---
4,000
New
I
---
2/12/24 - 5:23:18 pm
45
1y
307
13%
33%
1
XIAO DEMING
PR,OO
S
$584,120
859
---
2/8/24
---
$680.00
208,580
-0.4
D
R
2/9/24 - 2:36:53 pm
46
1y
193
12%
38%
1
TSENG SARIA
VP,GC
S
$584,120
859
---
2/8/24
---
$680.00
204,339
-0.4
D
R
2/9/24 - 2:35:33 pm
47
1y
246
17%
29%
1
SCIAMMAS MAURICE
VP,SO
S
$584,120
859
---
2/8/24
---
$680.00
141,718
-0.6
D
R
2/9/24 - 2:34:32 pm
48
1y
288
32%
19%
1
HSING MICHAEL
CEO,DIR
S
$1,897,200
2,790
---
2/8/24
---
$680.00
915,193
-0.3
D
R
2/9/24 - 2:33:14 pm
49
1y
132
18%
37%
1
BLEGEN THEODORE
CFO
S
$495,040
728
---
2/8/24
---
$680.00
83,173
-0.9
D
R
2/9/24 - 2:02:07 pm
50
    
 
MOYER JAMES C
DIR
JB
---
348
---
2/6/24
---
---
348
New
D
R
2/8/24 - 11:36:15 am
Subscribe Data Module Screens Alerts Newsletter Daily Ratings Reports Free Stuff
Home About FAQ Contact Disclaimer & Terms Of Use Privacy Transaction Codes
© 2025 InsiderInsights.com