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 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
MEDIDATA SOLUTIONS INC: MDSO
Price: 5/17/13 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
$71.98 $75.22 $26.72 $1,914 27 224 0.0% 4.5% 91.28% 5.98%
Exch Sector Industry Sub-Industry
NASD Services Business Services Services- Prepackaged Software
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#:
View Form:
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
DOUGLAS CORY
CFO
OE
$68,856
5,700
---
12/4/12
---
$12.08
40,638
16.3
D
---
12/6/12 - 4:50:02 pm
2
DE VRIES GLEN MICHAEL
PR,DIR
OE
$460,412
23,312
---
11/30/12
---
$19.75
763,616
3.1
D
---
12/4/12 - 5:47:24 pm
3
HIRSCHFELD STEVEN ISAAC
VP,OO
OE
$117,150
6,740
---
11/30/12
---
$14.00
90,443
8.1
D
---
12/4/12 - 5:39:12 pm
4
DE VRIES GLEN MICHAEL
PR,DIR
S
$8,162,979
204,000
---
11/19/12
---
$40.01
740,304
-21.6
D
---
11/21/12 - 4:01:59 pm
5
SHERIF TAREK
CB,CEO,DIR
S
$8,162,979
204,000
---
11/19/12
---
$40.01
557,502
-26.8
D
---
11/21/12 - 4:01:16 pm
6
DE VRIES GLEN MICHAEL
PR,DIR
AS
$1,627,396
40,000
---
11/7/12
---
$40.68
944,304
-4.1
D
10b
11/7/12 - 5:30:38 pm
7
SPIELMAN BRYAN CHARLES
VP
OS
$459,862
11,000
11/5/12
11/6/12
$41.61
$42.00
6,704
-62.1
D
---
11/7/12 - 5:29:17 pm
8
SPIELMAN BRYAN CHARLES
VP
OE
$185,790
11,000
11/5/12
11/6/12
---
$16.89
12,204
913.6
D
---
11/7/12 - 5:29:17 pm
9
SHERIF TAREK
CB,CEO,DIR
AS
$1,641,600
40,000
---
11/5/12
---
$41.04
761,502
-5.0
D
10b
11/7/12 - 5:05:09 pm
10
SCHLOSS EILEEN
VP,HR
3
---
---
---
10/29/12
---
---
---
---
D
---
10/31/12 - 5:55:33 pm
11
SHERIF TAREK
CB,CEO,DIR
AS
$1,578,856
40,000
10/3/12
10/4/12
---
$39.17
801,502
-4.8
D
10b
10/5/12 - 5:23:03 pm
12
DE VRIES GLEN MICHAEL
PR,DIR
AS
$1,097,869
27,604
---
10/3/12
---
$39.77
984,304
-2.7
D
10b
10/5/12 - 5:20:48 pm
13
HIRSCHFELD STEVEN ISAAC
VP,OO
OS
$1,933,877
51,543
9/11/12
9/12/12
$37.49
$37.55
83,703
-38.1
D
10b
9/13/12 - 4:38:50 pm
14
HIRSCHFELD STEVEN ISAAC
VP,OO
OE
$257,715
51,543
9/11/12
9/12/12
---
$5.00
111,436
86.1
D
10b
9/13/12 - 4:38:50 pm
15
HIRSCHFELD STEVEN ISAAC
VP,OO
OS
$403,798
10,757
---
9/7/12
---
$37.54
83,703
-11.4
D
10b
9/11/12 - 5:14:31 pm
16
HIRSCHFELD STEVEN ISAAC
VP,OO
OE
$53,785
10,757
---
9/7/12
---
$5.00
94,460
12.9
D
10b
9/11/12 - 5:14:31 pm
17
SHERIF TAREK
CB,CEO,DIR
AS
$728,960
20,000
---
9/6/12
---
$36.45
841,502
-2.3
D
10b
9/7/12 - 5:22:59 pm
18
DE VRIES GLEN MICHAEL
PR,DIR
AS
$898,910
25,000
---
9/5/12
---
$35.96
1,011,908
-2.4
D
10b
9/7/12 - 5:22:26 pm
19
DE VRIES GLEN MICHAEL
PR,DIR
JS
$97,921
2,756
---
8/13/12
---
$35.53
1,036,908
-0.3
D
R
8/15/12 - 6:25:03 pm
20
SHERIF TAREK
CB,CEO,DIR
JS
$97,921
2,756
---
8/13/12
---
$35.53
861,502
-0.3
D
R
8/15/12 - 6:24:49 pm
21
SHERIF TAREK
CB,CEO,DIR
AS
$716,366
20,000
---
8/3/12
---
$35.82
864,258
-2.3
D
10b
8/15/12 - 6:25:18 pm
22
DOUGLAS CORY
CFO
OS
$504,680
14,019
---
8/3/12
---
$36.00
34,938
-28.6
D
---
8/7/12 - 5:12:22 pm
23
DOUGLAS CORY
CFO
OE
$169,350
14,019
---
8/3/12
---
$12.08
48,957
40.1
D
---
8/7/12 - 5:12:22 pm
24
DOUGLAS CORY
CFO
OS
$504,680
14,019
---
8/3/12
---
$36.00
34,938
-28.6
D
---
8/7/12 - 5:12:06 pm
25
DOUGLAS CORY
CFO
OB
$169,350
14,019
---
8/3/12
---
$12.08
48,957
40.1
D
---
8/7/12 - 5:12:06 pm
26
DE VRIES GLEN MICHAEL
PR,DIR
AS
$867,894
25,000
8/1/12
8/2/12
$34.69
$35.00
1,039,664
-2.3
D
10b
8/3/12 - 5:34:59 pm
27
HIRSCHFELD STEVEN ISAAC
VP,OO
OS
$866,500
25,000
---
7/31/12
---
$34.66
83,703
-23.0
D
10b
8/2/12 - 5:27:04 pm
28
HIRSCHFELD STEVEN ISAAC
VP,OO
OE
$125,000
25,000
---
7/31/12
---
$5.00
108,703
29.9
D
10b
8/2/12 - 5:27:04 pm
29
SHERIF TAREK
CB,CEO,DIR
AS
$642,225
20,000
7/5/12
7/6/12
---
$31.93
884,258
-2.2
D
10b
7/9/12 - 4:47:43 pm
30
DE VRIES GLEN MICHAEL
PR,DIR
AS
$644,392
20,000
---
7/5/12
---
$32.22
1,064,664
-1.8
D
10b
7/9/12 - 4:46:52 pm
31
SHERIF TAREK
CB,CEO,DIR
JS
$123,120
4,089
---
6/24/12
---
$30.11
904,258
-0.5
D
R
6/26/12 - 4:36:02 pm
32
DE VRIES GLEN MICHAEL
PR,DIR
JS
$123,120
4,089
---
6/24/12
---
$30.11
1,084,664
-0.4
D
R
6/26/12 - 4:35:48 pm
33
DOUGLAS CORY
CFO
JS
$9,726
323
---
6/24/12
---
$30.11
34,938
-0.9
D
R
6/26/12 - 4:35:36 pm
34
HIRSCHFELD STEVEN ISAAC
VP,OO
JS
$75,245
2,499
---
6/24/12
---
$30.11
83,703
-2.9
D
R
6/26/12 - 4:35:22 pm
35
KRASNOW LINEENE NORRIS
VP,SO
JS
$33,452
1,111
---
6/24/12
---
$30.11
57,366
-1.9
D
R
6/26/12 - 4:35:08 pm
36
HIRSCHFELD STEVEN ISAAC
VP,OO
OS
$741,500
25,000
---
6/20/12
---
$29.66
86,202
-22.5
D
10b
6/22/12 - 4:57:41 pm
37
HIRSCHFELD STEVEN ISAAC
VP,OO
OE
$125,000
25,000
---
6/20/12
---
$5.00
111,202
29.0
D
10b
6/22/12 - 4:57:41 pm
38
DE VRIES GLEN MICHAEL
PR,DIR
AS
$417,755
15,000
---
6/6/12
---
$27.85
1,088,753
-1.4
D
10b
6/7/12 - 4:30:22 pm
39
SHERIF TAREK
CB,CEO,DIR
AS
$413,121
15,000
---
6/5/12
---
$27.54
908,347
-1.6
D
10b
6/7/12 - 4:30:43 pm
40
KRASNOW LINEENE NORRIS
VP,SO
JS
$47,816
1,692
---
5/31/12
---
$28.26
58,477
-2.8
D
R
6/4/12 - 5:54:04 pm
41
HIRSCHFELD STEVEN ISAAC
VP,OO
JS
$66,778
2,363
---
5/31/12
---
$28.26
86,202
-2.7
D
R
6/4/12 - 5:53:41 pm
42
DOUGLAS CORY
CFO
JS
$20,799
736
---
5/31/12
---
$28.26
35,261
-2.0
D
R
6/4/12 - 5:53:27 pm
43
SHERIF TAREK
CB,CEO,DIR
JS
$174,620
6,477
---
5/18/12
---
$26.96
929,297
-0.7
D
R
5/22/12 - 4:37:57 pm
44
DE VRIES GLEN MICHAEL
PR,DIR
JS
$174,620
6,477
---
5/18/12
---
$26.96
1,109,703
-0.6
D
R
5/22/12 - 4:37:44 pm
45
DOUGLAS CORY
CFO
JS
$11,889
441
---
5/18/12
---
$26.96
35,997
-1.2
D
R
5/22/12 - 4:34:36 pm
46
HIRSCHFELD STEVEN ISAAC
VP,OO
JS
$84,870
3,148
---
5/18/12
---
$26.96
88,565
-3.4
D
R
5/22/12 - 4:34:14 pm
47
KRASNOW LINEENE NORRIS
VP,SO
JS
$66,996
2,485
---
5/18/12
---
$26.96
60,169
-4.0
D
R
5/22/12 - 4:33:09 pm
48
SHERIF TAREK
CB,CEO,DIR
JB
---
48,266
---
5/16/12
---
---
935,774
5.4
D
R
5/18/12 - 4:32:24 pm
49
DE VRIES GLEN MICHAEL
PR,DIR
JB
---
48,266
---
5/16/12
---
---
1,116,180
4.5
D
R
5/18/12 - 4:32:00 pm
50
DOUGLAS CORY
CFO
JB
---
20,916
---
5/16/12
---
---
36,438
134.8
D
R
5/18/12 - 4:30:37 pm
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