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Detailed Insider History for:
MONOLITHIC POWER SYSTEMS INC: MPWR

Price: 1/30/15 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
$47.49 $50.66 $30.79 $1,840 39 244 1.3% 2.6% 97.17% 4.39%
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
107
22%
28%
PR,OO
S
$574
12
---
1/26/15
---
$47.82
1,706
-0.7
I
R
1/27/15 - 7:49:41 pm
2
1y
168
51%
6%
DIR
AS
$441,900
9,200
1/8/15
1/9/15
$47.90
$48.16
107,423
-7.9
I
10b
1/12/15 - 5:57:03 pm
3
1y
107
22%
28%
PR,OO
S
$4,673
97
---
1/5/15
---
$48.18
1,718
-5.3
I
R
1/6/15 - 5:47:34 pm
4
1y
107
22%
28%
PR,OO
S
$10,826
224
12/12/14
12/16/14
---
$48.00
1,815
-11.0
I
R
12/16/14 - 7:52:34 pm
5
    
 
DIR
OS*
$453,463
9,200
12/10/14
12/11/14
$49.28
$49.30
116,623
-7.3
I
10b
12/12/14 - 9:53:43 pm
6
    
 
DIR
OS*
$453,463
9,200
12/10/14
12/11/14
$49.28
$49.30
116,623
-7.3
I
10b
12/12/14 - 9:53:43 pm
7
1y
55
16%
33%
VP,GC
AS
$185,820
3,863
---
11/26/14
---
$48.10
116,165
-3.2
D
10b
12/1/14 - 9:17:31 pm
8
1y
168
51%
6%
DIR
OS
$431,084
9,200
11/24/14
11/25/14
$46.77
$46.94
1,383
-86.9
I
10b
11/26/14 - 8:10:22 pm
9
1y
107
22%
28%
PR,OO
S
$235,451
5,031
---
11/21/14
---
$46.80
134,153
-3.6
D
R
11/21/14 - 9:27:10 pm
10
1y
112
26%
20%
VP,SO
OS
$791,434
17,086
---
11/21/14
---
$46.25
156,029
-9.9
D
R
11/21/14 - 9:26:50 pm
11
    
 
VP,SO
OE
$150,300
10,000
---
11/21/14
---
$15.03
166,029
6.4
D
R
11/21/14 - 9:26:50 pm
12
1y
132
54%
4%
CEO,DIR
OS
$3,551,309
78,529
11/17/14
11/18/14
$45.09
$46.39
148,724
-34.6
D
---
11/19/14 - 8:18:16 pm
13
    
 
CEO,DIR
OE
$1,169,297
78,529
11/17/14
11/18/14
---
$14.89
219,299
55.8
D
---
11/19/14 - 8:18:16 pm
14
1y
55
16%
33%
VP,GC
AS
$72,116
1,621
11/10/14
11/12/14
$44.46
$44.93
33,628
-4.6
D
R,10b
11/12/14 - 9:17:02 pm
15
1y
45
7%
38%
CFO
AS
$240,199
5,378
11/10/14
11/11/14
$44.46
$44.78
23,096
-18.9
D
R,10b
11/12/14 - 9:16:38 pm
16
1y
107
22%
28%
PR,OO
S
$86,208
1,939
---
11/10/14
---
$44.46
52,784
-3.5
D
R
11/12/14 - 9:17:13 pm
17
1y
112
26%
20%
VP,SO
OS
$67,713
1,523
---
11/10/14
---
$44.46
76,715
-1.9
D
R
11/12/14 - 9:16:50 pm
18
1y
132
54%
4%
CEO,DIR
OS
$201,448
4,531
---
11/10/14
---
$44.46
148,724
-3.0
D
R
11/12/14 - 9:16:24 pm
19
1y
107
22%
28%
PR,OO
S
$159,778
3,644
11/4/14
11/6/14
$43.70
$44.26
54,723
-6.2
D
R
11/6/14 - 9:19:46 pm
20
1y
55
16%
33%
VP,GC
S
$121,258
2,764
11/4/14
11/6/14
$43.70
$44.26
35,249
-7.3
D
R
11/6/14 - 9:19:37 pm
21
1y
112
26%
20%
VP,SO
OS
$136,379
3,110
11/4/14
11/6/14
$43.70
$44.26
78,238
-3.8
D
R
11/6/14 - 9:19:28 pm
22
1y
45
7%
38%
CFO
S
$140,008
3,195
11/4/14
11/6/14
$43.70
$44.26
28,474
-10.1
D
R
11/6/14 - 9:19:19 pm
23
1y
132
54%
4%
CEO,DIR
OS
$208,543
4,739
11/5/14
11/6/14
$43.81
$44.26
153,255
-3.0
D
R
11/6/14 - 9:19:09 pm
24
1y
107
22%
28%
PR,OO
S
$4,763
109
---
11/4/14
---
$43.70
2,039
-5.1
I
R
11/6/14 - 9:19:46 pm
25
1y
107
22%
28%
PR,OO
S
$436
11
---
10/23/14
---
$39.65
2,148
-0.5
I
R
10/24/14 - 5:40:54 pm
26
    
 
PR,OO
JB
---
43,200
---
10/21/14
---
---
144,767
42.5
D
R
11/21/14 - 9:27:10 pm
27
    
 
VP,GC
JB
---
43,200
---
10/21/14
---
---
124,413
53.2
D
R
11/21/14 - 9:27:01 pm
28
    
 
VP,SO
JB
---
43,200
---
10/21/14
---
---
167,748
34.7
D
R
11/21/14 - 9:26:50 pm
29
    
 
CFO
JB
---
36,000
---
10/21/14
---
---
103,669
53.2
D
R
11/21/14 - 9:26:41 pm
30
    
 
CEO,DIR
JB
---
110,000
---
10/21/14
---
---
377,994
41.0
D
R
11/21/14 - 9:26:33 pm
31
1y
107
22%
28%
PR,OO
JS*
$3,926
89
---
10/6/14
---
$44.11
2,159
-4.0
I
R
10/9/14 - 7:56:04 pm
32
1y
107
22%
28%
PR,OO
S
$3,252
72
---
9/16/14
---
$45.17
2,248
-3.1
I
R
9/18/14 - 4:30:50 pm
33
1y
107
22%
28%
PR,OO
S
$6,803
150
---
9/10/14
---
$45.35
2,320
-6.1
I
R
9/12/14 - 9:03:03 pm
34
1y
168
51%
6%
DIR
AS
$434,158
9,200
9/4/14
9/5/14
$47.18
$47.20
10,583
-46.5
I
10b
9/8/14 - 8:58:55 pm
35
1y
132
54%
4%
CEO,DIR
OS
$6,929,294
149,866
8/22/14
8/26/14
$45.96
$46.42
157,994
-48.7
D
R
11/6/14 - 9:19:09 pm
36
1y
132
54%
4%
CEO,DIR
S
$6,929,294
149,866
8/22/14
8/26/14
$45.96
$46.42
315,700
-32.2
I
---
8/26/14 - 8:55:04 pm
37
1y
132
54%
4%
CEO,DIR
S
$6,021
130
---
8/22/14
---
$46.31
307,860
-0.0
D
---
8/26/14 - 8:55:04 pm
38
1y
45
7%
38%
CFO
AS
$389,160
8,648
---
8/19/14
---
$45.00
31,669
-21.5
D
10b
8/21/14 - 6:16:45 pm
39
    
 
PR,OO
JB
$6,104
205
---
8/15/14
---
$29.78
58,367
0.4
D
---
8/26/14 - 8:57:10 pm
40
    
 
VP,GC
JB
$2,918
98
---
8/15/14
---
$29.78
38,013
0.3
D
---
8/26/14 - 8:57:02 pm
41
    
 
CEO,DIR
JB
$3,871
130
---
8/15/14
---
$29.78
307,990
0.0
D
---
8/26/14 - 8:55:04 pm
42
1y
107
22%
28%
PR,OO
S
$220,023
5,210
8/8/14
8/11/14
$42.00
$42.58
58,162
-8.2
D
---
8/12/14 - 8:58:32 pm
43
1y
55
16%
33%
VP,GC
AS
$58,501
1,376
---
8/11/14
---
$42.52
37,915
-3.5
D
10b
8/12/14 - 8:58:24 pm
44
1y
45
7%
38%
CFO
AS
$50,672
1,192
---
8/11/14
---
$42.51
40,317
-2.9
D
10b
8/12/14 - 8:58:16 pm
45
1y
132
54%
4%
CEO,DIR
S
$3,341,511
78,529
---
8/11/14
---
$42.55
307,860
-20.3
D
---
8/12/14 - 8:58:07 pm
46
1y
107
22%
28%
PR,OO
S
$216,913
5,135
---
8/8/14
$42.04
$42.36
63,372
-7.5
D
R
8/8/14 - 8:35:57 pm
47
1y
55
16%
33%
VP,GC
AS
$91,351
2,168
8/6/14
8/8/14
---
$42.04
39,291
-5.2
D
R,10b
8/8/14 - 8:35:49 pm
48
    
 
VP,SO
OS*
$63,985
1,522
---
8/8/14
---
$42.04
81,348
-1.8
D
R
8/8/14 - 8:35:40 pm
49
1y
45
7%
38%
CFO
AS
$180,834
4,288
---
8/8/14
$42.04
$42.23
41,509
-9.4
D
R,10b
8/8/14 - 8:35:31 pm
50
1y
132
54%
4%
CEO,DIR
S
$190,441
4,530
---
8/8/14
---
$42.04
386,389
-1.2
D
R
8/8/14 - 8:35:19 pm
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