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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
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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
193
12%
38%
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
2
1y
307
13%
33%
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
3
1y
132
18%
37%
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
4
1y
288
32%
19%
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
5
1y
193
12%
38%
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
6
1y
307
13%
33%
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
7
1y
246
17%
29%
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
8
1y
288
32%
19%
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
9
1y
132
18%
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
10
1y
246
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
11
1y
193
12%
38%
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
12
1y
307
13%
33%
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
13
1y
307
13%
33%
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
14
1y
193
12%
38%
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
15
1y
246
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
16
1y
288
32%
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
17
1y
132
18%
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
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