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 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
MONOLITHIC POWER SYSTEMS INC: MPWR
Price: 8/29/25 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
$835.76 $954.00 $438.86 $40,026 48 573 0.8% 5.7% 101.43% 3.28%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Electronic And Other Electrical Equipment And Components, Except Computer Equipment Semiconductors & Related Devices
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#
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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
137
20%
35%
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
2
1y
88
30%
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
3
1y
88
30%
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
4
    
 
MOYER JAMES C
DIR
JS
---
4,000
---
2/13/24
---
---
33,731
-10.6
I
---
2/14/24 - 5:37:55 pm
5
    
 
MOYER JAMES C
DIR
JB
---
4,000
---
2/13/24
---
---
4,000
New
I
---
2/14/24 - 5:37:55 pm
6
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
7
    
 
MOYER JAMES C
DIR
JS
---
4,000
---
2/12/24
---
---
37,731
-9.6
I
---
2/12/24 - 5:23:18 pm
8
    
 
MOYER JAMES C
DIR
JB
---
4,000
---
2/12/24
---
---
4,000
New
I
---
2/12/24 - 5:23:18 pm
9
1y
311
14%
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
10
1y
195
13%
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
11
1y
249
18%
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
12
1y
290
32%
18%
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
13
1y
137
20%
35%
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
14
    
 
MOYER JAMES C
DIR
JB
---
348
---
2/6/24
---
---
348
New
D
R
2/8/24 - 11:36:15 am
15
    
 
ZHOU JEFF
DIR
JB
---
348
---
2/6/24
---
---
6,469
5.7
D
R
2/8/24 - 11:35:18 am
16
    
 
ELMIGER EUGEN J
DIR
JB
---
348
---
2/6/24
---
---
20,878
1.7
D
R
2/8/24 - 11:33:50 am
17
    
 
LEE VICTOR K
DIR
JB
---
348
---
2/6/24
---
---
30,232
1.2
D
R
2/8/24 - 11:32:47 am
18
    
 
WYNNE EILEEN
DIR
JB
---
348
---
2/6/24
---
---
818
74.0
D
R
2/8/24 - 11:31:54 am
19
    
 
MARTINEZ CARINTIA
DIR
JB
---
348
---
2/6/24
---
---
1,943
21.8
D
R
2/8/24 - 11:30:52 am
20
    
 
CHANG KUO WEI HERBERT
DIR
JB
---
348
---
2/6/24
---
---
1,641
26.9
D
R
2/8/24 - 11:29:45 am
21
1y
311
14%
33%
1
XIAO DEMING
PR,OO
S
$629,462
982
---
2/5/24
---
$641.00
209,439
-0.5
D
R
2/7/24 - 11:26:08 am
22
1y
195
13%
38%
1
TSENG SARIA
VP,GC
S
$629,462
982
---
2/5/24
---
$641.00
205,198
-0.5
D
R
2/7/24 - 11:24:18 am
23
1y
249
18%
29%
1
SCIAMMAS MAURICE
VP,SO
S
$629,462
982
---
2/5/24
---
$641.00
142,577
-0.7
D
R
2/7/24 - 11:22:12 am
24
1y
290
32%
18%
1
HSING MICHAEL
CEO,DIR
S
$2,430,031
3,791
---
2/5/24
---
$641.00
917,983
-0.4
D
R
2/7/24 - 11:19:45 am
25
1y
137
20%
35%
1
BLEGEN THEODORE
CFO
S
$555,747
867
---
2/5/24
---
$641.00
83,901
-1.0
D
R
2/7/24 - 11:17:59 am
26
1y
290
32%
18%
1
HSING MICHAEL
CEO,DIR
S
$4,816,044
8,000
---
2/1/24
$594.81
$609.39
921,774
-0.9
D
---
2/5/24 - 11:25:32 am
27
1y
137
20%
35%
1
BLEGEN THEODORE
CFO
S
$1,508,138
2,500
---
2/1/24
$600.37
$609.39
84,768
-2.9
D
---
2/5/24 - 11:19:04 am
28
1y
249
18%
29%
1
SCIAMMAS MAURICE
VP,SO
S
$6,403,239
11,000
---
1/12/24
$577.66
$589.29
143,559
-7.1
D
---
1/12/24 - 5:57:20 pm
29
1y
311
14%
33%
1
XIAO DEMING
PR,OO
S
$6,786,331
11,515
---
1/10/24
$584.39
$596.19
210,421
-5.2
D
---
1/11/24 - 11:37:13 am
30
1y
195
13%
38%
1
TSENG SARIA
VP,GC
S
$834,000
1,390
---
1/9/24
---
$600.00
206,180
-0.7
D
---
1/10/24 - 11:34:48 am
31
1y
290
32%
18%
1
HSING MICHAEL
CEO,DIR
S
$4,578,223
8,000
---
1/5/24
$568.36
$577.01
929,772
-0.9
D
---
1/9/24 - 12:42:32 pm
32
1y
195
13%
38%
1
TSENG SARIA
VP,GC
S
$14,761,606
25,314
---
1/4/24
---
$583.14
207,570
-10.9
D
R
1/8/24 - 2:48:37 pm
33
1y
311
14%
33%
1
XIAO DEMING
PR,OO
S
$14,761,606
25,314
---
1/4/24
---
$583.14
221,936
-10.2
D
R
1/8/24 - 2:46:51 pm
34
1y
249
18%
29%
1
SCIAMMAS MAURICE
VP,SO
S
$16,129,069
27,659
---
1/4/24
---
$583.14
154,559
-15.2
D
R
1/8/24 - 2:44:58 pm
35
1y
137
20%
35%
1
BLEGEN THEODORE
CFO
S
$16,102,245
27,613
---
1/4/24
---
$583.14
87,268
-24.0
D
R
1/8/24 - 2:41:55 pm
36
1y
290
32%
18%
1
HSING MICHAEL
CEO,DIR
S
$34,203,492
58,654
---
1/4/24
---
$583.14
937,772
-5.9
D
R
1/8/24 - 2:39:27 pm
37
1y
137
20%
35%
1
BLEGEN THEODORE
CFO
S
$1,539,272
2,500
---
1/2/24
$610.93
$620.50
114,881
-2.1
D
---
1/3/24 - 11:18:11 am
38
1y
137
20%
35%
1
BLEGEN THEODORE
CFO
S
$1,578,398
2,500
---
12/18/23
$627.99
$634.67
117,381
-2.1
D
---
12/19/23 - 12:13:48 pm
39
1y
195
13%
38%
1
TSENG SARIA
VP,GC
S
$11,166,000
18,610
---
12/13/23
---
$600.00
232,884
-7.4
D
---
12/14/23 - 2:03:28 pm
40
1y
250
36%
17%
1
MOYER JAMES C
DIR
S
$2,047,973
3,800
---
11/16/23
$538.34
$540.18
---
All
I
---
11/20/23 - 4:50:54 pm
41
    
 
MOYER JAMES C
DIR
JS
---
3,800
---
11/16/23
---
---
41,261
-8.4
I
---
11/20/23 - 4:50:54 pm
42
    
 
MOYER JAMES C
DIR
JB
---
3,800
---
11/16/23
---
---
3,800
New
I
---
11/20/23 - 4:50:54 pm
43
    
 
XIAO DEMING
PR,OO
JS
---
3,391
---
11/14/23
---
---
247,250
-1.4
D
---
11/16/23 - 5:03:08 pm
44
    
 
XIAO DEMING
PR,OO
JB
---
3,391
---
11/14/23
---
---
3,391
New
I
---
11/16/23 - 5:03:08 pm
45
1y
88
30%
24%
2
CHANG KUO WEI HERBERT
DIR
S
$209,456
400
---
11/14/23
---
$523.64
1,293
-23.6
D
---
11/15/23 - 5:40:44 pm
46
1y
88
30%
24%
2
CHANG KUO WEI HERBERT
DIR
S
$51,000
100
---
11/13/23
---
$510.00
1,693
-5.6
D
---
11/13/23 - 5:37:28 pm
47
1y
137
20%
35%
1
BLEGEN THEODORE
CFO
S
$349,158
712
---
11/8/23
---
$490.39
119,881
-0.6
D
R
11/9/23 - 6:05:40 pm
48
1y
290
32%
18%
1
HSING MICHAEL
CEO,DIR
S
$1,368,188
2,790
---
11/8/23
---
$490.39
996,426
-0.3
D
R
11/9/23 - 6:05:25 pm
49
1y
249
18%
29%
1
SCIAMMAS MAURICE
VP,SO
S
$421,245
859
---
11/8/23
---
$490.39
182,218
-0.5
D
R
11/9/23 - 6:05:13 pm
50
1y
195
13%
38%
1
TSENG SARIA
VP,GC
S
$421,245
859
---
11/8/23
---
$490.39
251,494
-0.3
D
R
11/9/23 - 6:04:59 pm
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