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Detailed Insider History for:
MONOLITHIC POWER SYSTEMS INC: MPWR
Price: 4/11/25 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
$533.13 $959.64 $438.86 $25,519 48 1,036 1.2% 6.9% 100.05% 3.43%
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
130
17%
37%
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
2
1y
245
17%
29%
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
3
1y
190
11%
39%
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
4
1y
305
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
5
1y
305
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
6
1y
190
11%
39%
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
7
1y
245
17%
29%
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
8
1y
284
31%
19%
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
9
1y
130
17%
37%
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
10
1y
245
17%
29%
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
11
1y
305
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
12
1y
130
17%
37%
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
13
1y
284
31%
19%
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
14
1y
190
11%
39%
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
15
1y
130
17%
37%
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
16
1y
284
31%
19%
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
17
1y
190
11%
39%
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
18
1y
305
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
19
1y
245
17%
29%
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
20
1y
190
11%
39%
1
TSENG SARIA
VP,GC
S
$1,604,810
3,462
---
5/3/23
---
$463.55
275,253
-1.2
D
R
5/4/23 - 4:42:33 pm
21
1y
245
17%
29%
1
SCIAMMAS MAURICE
VP,SO
S
$1,604,810
3,462
---
5/3/23
---
$463.55
206,197
-1.7
D
R
5/4/23 - 4:42:23 pm
22
1y
130
17%
37%
1
BLEGEN THEODORE
CFO
S
$1,330,389
2,870
---
5/3/23
---
$463.55
133,966
-2.1
D
R
5/4/23 - 4:42:11 pm
23
1y
305
12%
34%
1
XIAO DEMING
PR,OO
S
$1,604,810
3,462
---
5/3/23
---
$463.55
274,400
-1.2
D
R
5/4/23 - 4:41:59 pm
24
1y
284
31%
19%
1
HSING MICHAEL
CEO,DIR
S
$5,211,229
11,242
---
5/3/23
---
$463.55
1,067,017
-1.0
D
R
5/4/23 - 4:41:51 pm
25
    
 
TSENG SARIA
VP,GC
JB
---
8,685
---
5/2/23
---
---
278,715
3.2
D
R
5/4/23 - 4:42:33 pm
26
    
 
SCIAMMAS MAURICE
VP,SO
JB
---
8,685
---
5/2/23
---
---
209,659
4.3
D
R
5/4/23 - 4:42:23 pm
27
    
 
BLEGEN THEODORE
CFO
JB
---
5,714
---
5/2/23
---
---
136,836
4.4
D
R
5/4/23 - 4:42:11 pm
28
    
 
XIAO DEMING
PR,OO
JB
---
8,685
---
5/2/23
---
---
277,862
3.2
D
R
5/4/23 - 4:41:59 pm
29
    
 
HSING MICHAEL
CEO,DIR
JB
---
28,210
---
5/2/23
---
---
1,078,259
2.7
D
R
5/4/23 - 4:41:51 pm
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