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 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
MONOLITHIC POWER SYSTEMS INC: MPWR
Price: 10/31/25 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
$1,005.00 $1,123.38 $438.86 $48,145 48 570 0.6% 4.6% 102.09% 4.69%
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
250
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
2
1y
138
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
3
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
4
1y
138
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
5
1y
138
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
6
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
7
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
8
    
 
MOYER JAMES C
DIR
JS
---
3,800
---
11/16/23
---
---
41,261
-8.4
I
---
11/20/23 - 4:50:54 pm
9
    
 
MOYER JAMES C
DIR
JB
---
3,800
---
11/16/23
---
---
3,800
New
I
---
11/20/23 - 4:50:54 pm
10
    
 
XIAO DEMING
PR,OO
JS
---
3,391
---
11/14/23
---
---
247,250
-1.4
D
---
11/16/23 - 5:03:08 pm
11
    
 
XIAO DEMING
PR,OO
JB
---
3,391
---
11/14/23
---
---
3,391
New
I
---
11/16/23 - 5:03:08 pm
12
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
13
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
14
1y
138
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
15
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
16
1y
250
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
17
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
18
1y
311
14%
33%
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
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