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Detailed Insider History for:
MONOLITHIC POWER SYSTEMS INC: MPWR

Price: 5/22/15 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
$54.13 $56.19 $33.99 $2,140 40 370 1.5% 1.8% 95.71% 7.67%
Exch Sector Industry Sub-Industry
NASD 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
116
21%
29%
PR,OO
S
$754
14
---
5/26/15
---
$53.85
1,653
-0.8
I
R
5/28/15 - 5:02:26 pm
2
1y
50
6%
39%
CFO
AS
$224,629
4,142
---
5/18/15
---
$54.23
192,978
-2.1
D
10b
5/18/15 - 7:01:12 pm
3
1y
4
0%
52%
DIR
OS
$304,094
5,705
5/14/15
5/18/15
$52.90
$53.75
20,615
-21.7
D
---
5/18/15 - 6:58:16 pm
4
    
 
DIR
OE
$130,767
5,705
5/14/15
5/18/15
---
$22.01
23,615
31.9
D
---
5/18/15 - 6:58:16 pm
5
1y
177
49%
7%
DIR
AS
$422,046
8,000
5/14/15
5/15/15
$52.74
$52.77
71,823
-10.0
I
10b
5/18/15 - 6:55:46 pm
6
1y
61
15%
34%
VP,GC
AS
$232,915
4,490
5/8/15
5/12/15
$51.79
$51.92
239,037
-1.8
D
R,10b
5/12/15 - 6:47:07 pm
7
1y
116
21%
29%
PR,OO
S
$531,993
10,220
5/7/15
5/11/15
$51.79
$52.41
246,263
-4.0
D
R
5/11/15 - 6:33:16 pm
8
1y
50
6%
39%
CFO
S
$68,311
1,319
---
5/8/15
---
$51.79
197,120
-0.7
D
R
5/12/15 - 6:16:53 pm
9
1y
118
25%
21%
VP,SO
S
$78,876
1,523
---
5/8/15
---
$51.79
310,628
-0.5
D
R
5/12/15 - 3:20:17 pm
10
1y
140
51%
6%
CEO,DIR
OS
$234,609
4,530
---
5/8/15
---
$51.79
1,072,793
-0.4
D
R
5/12/15 - 3:12:35 pm
11
1y
61
15%
34%
VP,GC
JS*
$153,049
2,980
---
5/6/15
---
$51.36
243,527
-1.2
D
R
5/6/15 - 8:06:49 pm
12
1y
118
25%
21%
VP,SO
JS*
$153,049
2,980
---
5/6/15
---
$51.36
312,151
-0.9
D
R
5/6/15 - 6:46:37 pm
13
1y
116
21%
29%
PR,OO
JS*
$173,438
3,377
---
5/6/15
---
$51.36
256,483
-1.3
D
R,10b
5/6/15 - 6:43:14 pm
14
1y
50
6%
39%
CFO
JS*
$124,853
2,431
---
5/6/15
---
$51.36
198,439
-1.2
D
R
5/6/15 - 6:40:23 pm
15
1y
140
51%
6%
CEO,DIR
OS
$451,493
8,791
---
5/6/15
---
$51.36
1,077,323
-0.8
D
R
5/6/15 - 6:36:07 pm
16
1y
61
15%
34%
VP,GC
S
$56,327
1,071
5/4/15
5/5/15
---
$52.54
246,507
-0.4
D
R
5/6/15 - 8:06:49 pm
17
1y
118
25%
21%
VP,SO
S
$56,327
1,071
5/4/15
5/5/15
---
$52.54
315,131
-0.3
D
R
5/6/15 - 6:46:37 pm
18
1y
116
21%
29%
PR,OO
AS
$208,652
3,961
5/4/15
5/5/15
---
$52.54
259,860
-1.5
D
R,10b
5/6/15 - 6:43:14 pm
19
1y
50
6%
39%
CFO
S
$45,702
869
5/4/15
5/5/15
---
$52.54
200,870
-0.4
D
R
5/6/15 - 6:40:23 pm
20
1y
140
51%
6%
CEO,DIR
OS
$201,992
3,841
5/4/15
5/5/15
---
$52.54
1,086,114
-0.4
D
R
5/6/15 - 6:36:07 pm
21
1y
116
21%
29%
PR,OO
AS
$5,955
113
---
5/4/15
---
$52.70
1,667
-6.3
I
R,10b
5/6/15 - 6:43:14 pm
22
1y
50
6%
39%
CFO
AS
$1,052,133
19,773
---
4/23/15
$52.99
$53.36
201,739
-8.9
D
10b
4/23/15 - 6:21:29 pm
23
1y
116
21%
29%
PR,OO
AS
$653
12
---
4/23/15
---
$54.43
1,780
-0.7
I
R,10b
4/23/15 - 6:20:59 pm
24
1y
116
21%
29%
PR,OO
AS
$1,461,132
27,058
---
4/21/15
---
$54.00
263,821
-9.3
D
R,10b
4/23/15 - 6:20:59 pm
25
1y
177
49%
7%
DIR
AS
$476,792
9,200
4/13/15
4/14/15
---
$51.54
79,823
-10.3
I
10b
4/15/15 - 6:20:05 pm
26
1y
140
51%
6%
CEO,DIR
OS
$365,374
7,025
---
4/9/15
---
$52.01
1,142,019
-0.6
D
10b
4/13/15 - 6:45:37 pm
27
    
 
CEO,DIR
OE
$157,920
10,507
---
4/9/15
---
$15.03
1,149,044
0.9
D
10b
4/13/15 - 6:45:37 pm
28
    
 
CEO,DIR
OS*
$3,767,316
72,404
4/6/15
4/8/15
$52.00
$52.01
1,120,704
-6.1
D
10b
4/8/15 - 6:57:42 pm
29
1y
3
100%
20%
CEO,DIR
OE*
$1,627,884
108,309
4/6/15
4/8/15
---
$15.03
1,169,036
10.2
D
10b
4/8/15 - 6:57:42 pm
30
1y
116
21%
29%
PR,OO
S
$4,974
97
---
4/6/15
---
$51.28
1,792
-5.1
I
R
4/8/15 - 6:02:58 pm
31
    
 
CEO,DIR
OS*
$6,790,021
130,560
4/1/15
4/2/15
---
$52.00
1,042,570
-11.1
D
10b
4/3/15 - 5:33:04 pm
32
1y
3
100%
20%
CEO,DIR
OE*
$2,935,374
195,301
4/1/15
4/2/15
---
$15.03
1,174,182
20.0
D
10b
4/3/15 - 5:33:04 pm
33
1y
116
21%
29%
PR,OO
AS
$566,894
10,696
---
3/30/15
---
$52.95
290,879
-3.5
D
10b
3/31/15 - 7:21:40 pm
34
1y
177
49%
7%
DIR
AS
$507,688
9,200
3/19/15
3/20/15
$54.77
$55.59
89,023
-9.4
I
10b
3/23/15 - 1:51:56 pm
35
    
 
CFO
JB
---
36,000
---
3/18/15
---
---
221,512
19.4
D
R
3/20/15 - 2:03:13 pm
36
    
 
VP,SO
JB
---
43,200
---
3/18/15
---
---
316,202
15.8
D
R
3/20/15 - 2:01:07 pm
37
    
 
PR,OO
JB
---
43,200
---
3/18/15
---
---
301,575
16.7
D
R
3/20/15 - 1:45:10 pm
38
    
 
CEO,DIR
JB
---
110,000
---
3/18/15
---
---
1,037,891
11.9
D
R
3/20/15 - 1:41:56 pm
39
    
 
VP,GC
JB
---
43,200
---
3/18/15
---
---
247,578
21.1
D
R
3/20/15 - 1:24:36 pm
40
1y
116
21%
29%
PR,OO
S
$13,768
259
---
3/16/15
---
$53.16
1,889
-12.1
I
R
3/18/15 - 6:05:58 pm
41
1y
4
0%
52%
DIR
OS
$262,500
5,000
---
2/24/15
---
$52.50
20,615
-19.5
D
---
2/25/15 - 1:41:16 pm
42
    
 
DIR
OE
$115,250
5,000
---
2/24/15
---
$23.05
25,615
24.3
D
---
2/25/15 - 1:41:16 pm
43
1y
177
49%
7%
DIR
AS
$469,575
9,200
2/19/15
2/20/15
$50.59
$51.49
98,223
-8.6
I
10b
2/23/15 - 2:12:01 pm
44
1y
4
0%
41%
DIR
OS
$800,289
15,705
---
2/19/15
---
$50.96
20,815
-43.0
D
---
2/23/15 - 2:09:37 pm
45
    
 
DIR
OE
$361,267
15,705
---
2/19/15
$22.01
$23.05
35,815
78.1
D
---
2/23/15 - 2:09:37 pm
46
1y
61
15%
34%
VP,GC
AS
$1,441,013
28,441
---
2/19/15
$50.66
$51.22
160,534
-15.1
D
10b
2/20/15 - 6:42:19 pm
47
    
 
CEO,DIR
JB
$21,235
567
---
2/16/15
---
$37.45
927,891
0.1
D
R
3/20/15 - 1:41:56 pm
48
    
 
PR,OO
JB
$17,752
474
---
2/16/15
---
$37.45
258,375
0.2
D
R
3/18/15 - 6:05:58 pm
49
    
 
VP,GC
JB
$16,516
441
---
2/16/15
---
$37.45
188,975
0.2
D
10b
2/20/15 - 6:42:19 pm
50
1y
4
0%
52%
DIR
OS
$251,250
5,000
---
2/13/15
---
$50.25
20,615
-19.5
D
---
2/17/15 - 7:17:31 pm
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