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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: 12/20/24 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
$593.22 $959.64 $546.71 $28,937 49 906 0.8% 5.8% 97.31% 3.37%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Electronic And Other Electrical Equipment And Components, Except Computer Equipment Semiconductors & Related Devices
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#
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
    
 
MOYER JAMES C
DIR
JB
---
3,800
---
11/16/23
---
---
3,800
New
I
---
11/20/23 - 4:50:54 pm
2
    
 
XIAO DEMING
PR,OO
JS
---
3,391
---
11/14/23
---
---
247,250
-1.4
D
---
11/16/23 - 5:03:08 pm
3
    
 
XIAO DEMING
PR,OO
JB
---
3,391
---
11/14/23
---
---
3,391
New
I
---
11/16/23 - 5:03:08 pm
4
1y
83
25%
26%
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
5
1y
83
25%
26%
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
6
1y
122
15%
40%
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
7
1y
276
31%
20%
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
8
1y
240
17%
30%
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
9
1y
186
11%
40%
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
10
1y
301
12%
34%
1
XIAO DEMING
PR,OO
S
$421,245
859
---
11/8/23
---
$490.39
250,641
-0.3
D
R
11/9/23 - 6:04:47 pm
11
1y
301
12%
34%
1
XIAO DEMING
PR,OO
S
$484,047
982
---
11/6/23
---
$492.92
251,500
-0.4
D
R
11/7/23 - 5:03:38 pm
12
1y
186
11%
40%
1
TSENG SARIA
VP,GC
S
$484,047
982
---
11/6/23
---
$492.92
252,353
-0.4
D
R
11/7/23 - 5:02:50 pm
13
1y
122
15%
40%
1
BLEGEN THEODORE
CFO
S
$417,503
847
---
11/6/23
---
$492.92
120,593
-0.7
D
R
11/7/23 - 5:02:39 pm
14
1y
276
31%
20%
1
HSING MICHAEL
CEO,DIR
S
$1,868,167
3,790
---
11/6/23
---
$492.92
999,216
-0.4
D
R
11/7/23 - 5:02:26 pm
15
1y
240
17%
30%
1
SCIAMMAS MAURICE
VP,SO
S
$484,047
982
---
11/6/23
---
$492.92
183,077
-0.5
D
R
11/7/23 - 5:02:11 pm
16
1y
240
17%
30%
1
SCIAMMAS MAURICE
VP,SO
S
$1,972,982
4,305
---
10/2/23
---
$458.30
184,059
-2.3
D
R
10/4/23 - 4:22:14 pm
17
1y
186
11%
40%
1
TSENG SARIA
VP,GC
S
$1,972,982
4,305
---
10/2/23
---
$458.30
253,335
-1.7
D
R
10/4/23 - 4:21:57 pm
18
1y
301
12%
34%
1
XIAO DEMING
PR,OO
S
$1,972,982
4,305
---
10/2/23
---
$458.30
252,482
-1.7
D
R
10/4/23 - 4:21:47 pm
19
1y
122
15%
40%
1
BLEGEN THEODORE
CFO
S
$414,762
905
---
10/2/23
---
$458.30
121,440
-0.7
D
R
10/4/23 - 4:21:36 pm
20
1y
83
25%
26%
2
CHANG KUO WEI HERBERT
DIR
S
$250,000
500
---
8/29/23
---
$500.00
1,793
-21.8
D
---
8/29/23 - 4:24:35 pm
21
1y
122
15%
40%
1
BLEGEN THEODORE
CFO
S
$383,923
724
---
8/8/23
---
$530.28
122,345
-0.6
D
R
8/10/23 - 6:02:36 pm
22
1y
240
17%
30%
1
SCIAMMAS MAURICE
VP,SO
S
$463,447
874
---
8/8/23
---
$530.26
188,339
-0.5
D
R
8/10/23 - 6:01:40 pm
23
1y
276
31%
20%
1
HSING MICHAEL
CEO,DIR
S
$1,503,817
2,836
---
8/8/23
---
$530.26
1,013,951
-0.3
D
R
8/10/23 - 6:01:08 pm
24
1y
186
11%
40%
1
TSENG SARIA
VP,GC
S
$463,456
874
---
8/8/23
---
$530.27
257,623
-0.3
D
R
8/10/23 - 6:00:40 pm
25
1y
301
12%
34%
1
XIAO DEMING
PR,OO
S
$463,447
874
---
8/8/23
---
$530.26
256,770
-0.3
D
R
8/10/23 - 5:59:59 pm
26
1y
122
15%
40%
1
BLEGEN THEODORE
CFO
S
$448,595
852
---
8/4/23
---
$526.52
123,069
-0.7
D
R
8/7/23 - 5:03:52 pm
27
1y
276
31%
20%
1
HSING MICHAEL
CEO,DIR
S
$2,008,750
3,815
---
8/4/23
---
$526.54
1,016,787
-0.4
D
R
8/7/23 - 5:03:30 pm
28
1y
186
11%
40%
1
TSENG SARIA
VP,GC
S
$520,202
988
---
8/4/23
---
$526.52
258,497
-0.4
D
R
8/7/23 - 5:03:19 pm
29
1y
301
12%
34%
1
XIAO DEMING
PR,OO
S
$520,212
988
---
8/4/23
---
$526.53
257,644
-0.4
D
R
8/7/23 - 5:03:11 pm
30
1y
240
17%
30%
1
SCIAMMAS MAURICE
VP,SO
S
$520,202
988
---
8/4/23
---
$526.52
189,213
-0.5
D
R
8/7/23 - 5:02:55 pm
31
1y
276
31%
20%
1
HSING MICHAEL
CEO,DIR
S
$15,409,864
28,845
---
7/21/23
---
$534.23
1,020,602
-2.7
D
R
7/25/23 - 6:35:47 pm
32
1y
122
15%
40%
1
BLEGEN THEODORE
CFO
S
$4,046,792
7,575
---
7/21/23
---
$534.23
123,921
-5.8
D
R
7/25/23 - 6:35:29 pm
33
1y
240
17%
30%
1
SCIAMMAS MAURICE
VP,SO
S
$5,258,426
9,843
---
7/21/23
---
$534.23
190,201
-4.9
D
R
7/25/23 - 6:35:17 pm
34
1y
186
11%
40%
1
TSENG SARIA
VP,GC
S
$5,136,622
9,615
---
7/21/23
---
$534.23
259,485
-3.6
D
R
7/25/23 - 6:35:04 pm
35
1y
301
12%
34%
1
XIAO DEMING
PR,OO
S
$5,136,622
9,615
---
7/21/23
---
$534.23
258,632
-3.6
D
R
7/25/23 - 6:34:43 pm
36
1y
301
12%
34%
1
XIAO DEMING
PR,OO
S
$2,315,186
4,305
---
7/3/23
---
$537.79
268,247
-1.6
D
R
7/5/23 - 4:29:14 pm
37
1y
186
11%
40%
1
TSENG SARIA
VP,GC
S
$2,315,186
4,305
---
7/3/23
---
$537.79
269,100
-1.6
D
R
7/5/23 - 4:29:01 pm
38
1y
240
17%
30%
1
SCIAMMAS MAURICE
VP,SO
S
$2,315,186
4,305
---
7/3/23
---
$537.79
200,044
-2.1
D
R
7/5/23 - 4:28:48 pm
39
1y
276
31%
20%
1
HSING MICHAEL
CEO,DIR
S
$5,894,179
10,960
---
7/3/23
---
$537.79
1,049,447
-1.0
D
R
7/5/23 - 4:28:31 pm
40
1y
122
15%
40%
1
BLEGEN THEODORE
CFO
S
$486,700
905
---
7/3/23
---
$537.79
131,496
-0.7
D
R
7/5/23 - 4:28:23 pm
41
1y
240
17%
30%
1
SCIAMMAS MAURICE
VP,SO
S
$351,181
857
---
5/9/23
---
$409.78
204,349
-0.4
D
R
5/10/23 - 6:04:43 pm
42
1y
301
12%
34%
1
XIAO DEMING
PR,OO
S
$351,190
857
---
5/9/23
---
$409.79
272,552
-0.3
D
R
5/10/23 - 6:04:29 pm
43
1y
122
15%
40%
1
BLEGEN THEODORE
CFO
S
$291,354
711
---
5/9/23
---
$409.78
132,401
-0.5
D
R
5/10/23 - 6:04:00 pm
44
1y
276
31%
20%
1
HSING MICHAEL
CEO,DIR
S
$1,141,237
2,785
---
5/9/23
---
$409.78
1,060,407
-0.3
D
R
5/10/23 - 6:03:48 pm
45
1y
186
11%
40%
1
TSENG SARIA
VP,GC
S
$351,207
857
---
5/9/23
---
$409.81
273,405
-0.3
D
R
5/10/23 - 6:03:36 pm
46
1y
122
15%
40%
1
BLEGEN THEODORE
CFO
S
$392,498
854
---
5/4/23
---
$459.60
133,112
-0.6
D
R
5/5/23 - 4:40:16 pm
47
1y
276
31%
20%
1
HSING MICHAEL
CEO,DIR
S
$1,757,970
3,825
---
5/4/23
---
$459.60
1,063,192
-0.4
D
R
5/5/23 - 4:40:01 pm
48
1y
186
11%
40%
1
TSENG SARIA
VP,GC
S
$455,464
991
---
5/4/23
---
$459.60
274,262
-0.4
D
R
5/5/23 - 4:39:51 pm
49
1y
301
12%
34%
1
XIAO DEMING
PR,OO
S
$455,464
991
---
5/4/23
---
$459.60
273,409
-0.4
D
R
5/5/23 - 4:39:43 pm
50
1y
240
17%
30%
1
SCIAMMAS MAURICE
VP,SO
S
$455,464
991
---
5/4/23
---
$459.60
205,206
-0.5
D
R
5/5/23 - 4:39:28 pm
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