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General | Insiders | Insider Transactions | Monthly Overview | Weekly Overview

Overview of all insider trading transactions in Medidata Solutions, Inc.. Get notifications about new insider transactions in Medidata Solutions, Inc. for free.

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Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
Nov 17 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Sell	S	57.85	156	9,025	60,400	60.6 K to 60.4 K (-0.26 %)
Nov 17 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Buy	M	7.68	156	1,198	60,556	60.4 K to 60.6 K (+0.26 %)
Nov 17 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Option Exercise	M	18.76	1,277	23,950	0
Nov 17 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Option Exercise	M	18.76	4,973	93,269	0
Nov 17 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Sell	S	56.60	3,831	216,835	31,007	34.8 K to 31 K (-11.00 %)
Nov 17 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Buy	M	18.76	1,277	23,950	34,838	33.6 K to 34.8 K (+3.81 %)
Nov 17 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Buy	M	18.76	4,973	93,269	33,561	28.6 K to 33.6 K (+17.40 %)
Nov 10 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Sell	S	50.85	7,500	381,375	931,517	939 K to 931.5 K (-0.80 %)
Nov 10 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Gift	G	0.00	3,636	0	939,017	942.7 K to 939 K (-0.39 %)
Nov 04 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Sell	S	46.70	7,500	350,250	814,580	822.1 K to 814.6 K (-0.91 %)
Oct 27 2016	MDSO	Medidata Solutions ...	Otner Michael I.	EVP-General Counsel	Sell	S	53.87	7,331	394,921	86,378	93.7 K to 86.4 K (-7.82 %)
Oct 27 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Sell	S	48.50	10,000	485,000	60,400	70.4 K to 60.4 K (-14.20 %)
Oct 13 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Sell	S	54.72	7,500	410,400	942,653	950.2 K to 942.7 K (-0.79 %)
Oct 06 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Sell	S	54.86	7,500	411,450	822,080	829.6 K to 822.1 K (-0.90 %)
Oct 06 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Gift	G	0.00	8,000	0	829,580	837.6 K to 829.6 K (-0.96 %)
Oct 04 2016	MDSO	Medidata Solutions ...	Capone Michael L	Chief Operating Off ...	Payment of Exercise	F	55.76	6,089	339,523	146,144	152.2 K to 146.1 K (-4.00 %)
Sep 30 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Sell	S	56.17	10,000	561,700	70,400	80.4 K to 70.4 K (-12.44 %)
Sep 14 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Sell	S	53.70	7,500	402,750	950,153	957.7 K to 950.2 K (-0.78 %)
Sep 09 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Option Exercise	M	11.50	10,000	115,000	3,150
Sep 09 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Sell	S	55.85	10,000	558,500	80,400	90.4 K to 80.4 K (-11.06 %)
Sep 09 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Buy	M	11.50	10,000	115,000	90,400	80.4 K to 90.4 K (+12.44 %)
Sep 07 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Sell	S	54.33	7,500	407,475	837,580	845.1 K to 837.6 K (-0.89 %)
Sep 01 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Sell	S	54.11	10,000	541,100	80,400	90.4 K to 80.4 K (-11.06 %)
Aug 31 2016	MDSO	Medidata Solutions ...	Otner Michael I.	EVP-General Counsel	Sell	S	53.92	6,006	323,844	93,709	99.7 K to 93.7 K (-6.02 %)
Aug 29 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Sell	S	55.00	25,000	1,375,000	957,653	982.7 K to 957.7 K (-2.54 %)
Aug 29 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Sell	S	55.00	25,000	1,375,000	845,080	870.1 K to 845.1 K (-2.87 %)
Aug 11 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Sell	S	54.39	7,500	407,925	982,653	990.2 K to 982.7 K (-0.76 %)
Aug 11 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Sell	S	54.39	7,500	407,925	982,653	990.2 K to 982.7 K (-0.76 %)
Aug 04 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Sell	S	52.97	7,500	397,275	870,080	877.6 K to 870.1 K (-0.85 %)
Aug 04 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Sell	S	52.97	7,500	397,275	870,080	877.6 K to 870.1 K (-0.85 %)
Aug 02 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Option Exercise	M	18.76	1,658	31,096	4,973
Aug 02 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Option Exercise	M	18.76	425	7,971	1,277
Aug 02 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Sell	S	53.04	2,083	110,482	28,588	30.7 K to 28.6 K (-6.79 %)
Aug 02 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Buy	M	18.76	1,658	31,096	30,671	29 K to 30.7 K (+5.71 %)
Aug 02 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Buy	M	18.76	425	7,971	29,013	28.6 K to 29 K (+1.49 %)
Jul 28 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Option Exercise	M	18.76	13,261	248,710	6,631
Jul 28 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Option Exercise	M	18.76	3,404	63,842	1,702
Jul 28 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Sell	S	52.82	10,644	562,216	28,588	39.2 K to 28.6 K (-27.13 %)
Jul 28 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Buy	M	18.76	13,261	248,710	39,026	25.8 K to 39 K (+51.47 %)
Jul 28 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Buy	M	18.76	3,404	63,842	25,765	22.4 K to 25.8 K (+15.22 %)
Jul 28 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Sell	S	52.77	10,000	527,700	90,400	100.4 K to 90.4 K (-9.96 %)
Jul 26 2016	MDSO	Medidata Solutions ...	Otner Michael I.	EVP-General Counsel	Sell	S	51.27	7,500	384,525	99,715	107.2 K to 99.7 K (-7.00 %)
Jul 26 2016	MDSO	Medidata Solutions ...	Otner Michael I.	EVP-General Counsel	Sell	S	51.27	7,500	384,525	99,715	107.2 K to 99.7 K (-7.00 %)
Jul 22 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Option Exercise	M	13.99	10,000	139,900	2,055
Jul 22 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Option Exercise	M	13.99	10,825	151,442	12,055
Jul 22 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Sell	S	51.85	10,000	518,500	100,400	110.4 K to 100.4 K (-9.06 %)
Jul 22 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Buy	M	13.99	10,000	139,900	110,400	100.4 K to 110.4 K (+9.96 %)
Jul 22 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Sell	S	53.85	10,825	582,926	100,400	111.2 K to 100.4 K (-9.73 %)
Jul 22 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Buy	M	13.99	10,825	151,442	111,225	100.4 K to 111.2 K (+10.78 %)
Jul 22 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Option Exercise	M	13.99	10,000	139,900	2,055
Jul 22 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Option Exercise	M	13.99	10,825	151,442	12,055
Jul 22 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Sell	S	51.85	10,000	518,500	100,400	110.4 K to 100.4 K (-9.06 %)
Jul 22 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Buy	M	13.99	10,000	139,900	110,400	100.4 K to 110.4 K (+9.96 %)
Jul 22 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Sell	S	53.85	10,825	582,926	100,400	111.2 K to 100.4 K (-9.73 %)
Jul 22 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Buy	M	13.99	10,825	151,442	111,225	100.4 K to 111.2 K (+10.78 %)
Jul 13 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Sell	S	49.22	25,000	1,230,500	990,153	1 M to 990.2 K (-2.46 %)
Jul 13 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Sell	S	49.36	7,500	370,200	1,015,153	1 M to 1 M (-0.73 %)
Jul 13 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Sell	S	49.24	22,036	1,085,053	877,580	899.6 K to 877.6 K (-2.45 %)
Jul 13 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Option Exercise	M	13.99	10,000	139,900	22,880
Jul 13 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Sell	S	49.85	10,000	498,500	100,400	110.4 K to 100.4 K (-9.06 %)
Jul 13 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Buy	M	13.99	10,000	139,900	110,400	100.4 K to 110.4 K (+9.96 %)
Jul 06 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Sell	S	46.35	7,500	347,625	899,616	907.1 K to 899.6 K (-0.83 %)
Jun 30 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Sell	S	45.66	10,000	456,600	100,166	110.2 K to 100.2 K (-9.08 %)
Jun 13 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Sell	S	47.66	7,500	357,450	1,022,453	1 M to 1 M (-0.73 %)
Jun 03 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Sell	S	45.90	7,500	344,250	906,849	914.3 K to 906.8 K (-0.82 %)
Jun 03 2016	MDSO	Medidata Solutions ...	McCulloch George	Director	Grant	A	0.00	5,178	0	54,110	48.9 K to 54.1 K (+10.58 %)
Jun 03 2016	MDSO	Medidata Solutions ...	SHAPIRO LEE	Director	Grant	A	0.00	5,178	0	35,309	30.1 K to 35.3 K (+17.18 %)
Jun 03 2016	MDSO	Medidata Solutions ...	TAYLOR ROBERT	Director	Grant	A	0.00	5,639	0	56,381	50.7 K to 56.4 K (+11.11 %)
Jun 03 2016	MDSO	Medidata Solutions ...	Dominguez Carlos	Director	Grant	A	0.00	5,178	0	53,620	48.4 K to 53.6 K (+10.69 %)
Jun 03 2016	MDSO	Medidata Solutions ...	Kurtz Neil M	Director	Grant	A	0.00	5,178	0	110,003	104.8 K to 110 K (+4.94 %)
Jun 02 2016	MDSO	Medidata Solutions ...	TAYLOR ROBERT	Director	Sell	S	45.03	3,752	168,953	50,742	54.5 K to 50.7 K (-6.89 %)
May 26 2016	MDSO	Medidata Solutions ...	Kurtz Neil M	Director	Option Exercise	M	13.99	1,520	21,257	0
May 26 2016	MDSO	Medidata Solutions ...	Kurtz Neil M	Director	Sell	S	44.95	4,417	198,544	104,825	109.2 K to 104.8 K (-4.04 %)
May 26 2016	MDSO	Medidata Solutions ...	Kurtz Neil M	Director	Sell	S	44.96	1,520	68,339	109,242	110.8 K to 109.2 K (-1.37 %)
May 26 2016	MDSO	Medidata Solutions ...	Kurtz Neil M	Director	Buy	M	13.99	1,520	21,265	110,762	109.2 K to 110.8 K (+1.39 %)
May 26 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Sell	S	44.94	10,000	449,400	110,166	120.2 K to 110.2 K (-8.32 %)
May 26 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Sell	S	45.00	7,500	337,500	1,029,953	1 M to 1 M (-0.72 %)
May 26 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Sell	S	45.00	7,500	337,500	914,349	921.8 K to 914.3 K (-0.81 %)
May 17 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Payment of Exercise	F	43.00	13,472	579,296	1,037,453	1.1 M to 1 M (-1.28 %)
May 17 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Gift	G	0.00	22,500	0	1,050,925	1.1 M to 1.1 M (-2.10 %)
May 17 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Gift	G	0.00	5,500	0	1,073,425	1.1 M to 1.1 M (-0.51 %)
May 17 2016	MDSO	Medidata Solutions ...	Otner Michael I.	EVP-General Counsel	Payment of Exercise	F	43.00	1,252	53,836	107,032	108.3 K to 107 K (-1.16 %)
May 17 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Payment of Exercise	F	43.00	5,701	245,143	120,166	125.9 K to 120.2 K (-4.53 %)
May 17 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Payment of Exercise	F	43.00	13,472	579,296	921,849	935.3 K to 921.8 K (-1.44 %)
May 17 2016	MDSO	Medidata Solutions ...	Bergmann Rouven	Chief Financial Off ...	Payment of Exercise	F	42.06	2,342	98,505	72,331	74.7 K to 72.3 K (-3.14 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Otner Michael I.	EVP-General Counsel	Option Exercise	A	0.00	12,745	0	12,745
Mar 01 2016	MDSO	Medidata Solutions ...	Otner Michael I.	EVP-General Counsel	Grant	A	0.00	12,745	0	118,434	105.7 K to 118.4 K (+12.06 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Otner Michael I.	EVP-General Counsel	Payment of Exercise	F	34.85	2,534	88,310	105,689	108.2 K to 105.7 K (-2.34 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Otner Michael I.	EVP-General Counsel	Buy	M	0.00	5,712	0	108,223	102.5 K to 108.2 K (+5.57 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Pinto Michael Christopher	EVP, GM of Global S ...	Option Exercise	A	0.00	12,745	0	12,745
Mar 01 2016	MDSO	Medidata Solutions ...	Pinto Michael Christopher	EVP, GM of Global S ...	Grant	A	0.00	12,745	0	61,591	48.8 K to 61.6 K (+26.09 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Pinto Michael Christopher	EVP, GM of Global S ...	Grant	A	0.00	12,745	0	48,846	36.1 K to 48.8 K (+35.30 %)
Mar 01 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Option Exercise	A	0.00	76,742	0	76,742
Mar 01 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Grant	A	0.00	12,745	0	1,089,876	1.1 M to 1.1 M (+1.18 %)
Mar 01 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Grant	A	0.00	76,472	0	1,077,131	1 M to 1.1 M (+7.64 %)
Mar 01 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Payment of Exercise	F	34.85	15,944	555,648	1,000,659	1 M to 1 M (-1.57 %)
Mar 01 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Buy	M	0.00	28,562	0	1,016,603	988 K to 1 M (+2.89 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Grant	A	0.00	25,491	0	135,867	110.4 K to 135.9 K (+23.09 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Payment of Exercise	F	34.85	4,937	172,054	110,376	115.3 K to 110.4 K (-4.28 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Buy	M	0.00	9,520	0	115,313	105.8 K to 115.3 K (+9.00 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Capone Michael L	Chief Operating Off ...	Option Exercise	A	0.00	25,491	0	25,491
Mar 01 2016	MDSO	Medidata Solutions ...	Capone Michael L	Chief Operating Off ...	Grant	A	0.00	50,981	0	151,951	101 K to 152 K (+50.49 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Capone Michael L	Chief Operating Off ...	Grant	A	0.00	25,491	0	100,970	75.5 K to 101 K (+33.77 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Capone Michael L	Chief Operating Off ...	Payment of Exercise	F	34.85	3,520	122,672	75,479	79 K to 75.5 K (-4.46 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Capone Michael L	Chief Operating Off ...	Buy	M	0.00	9,520	0	78,999	69.5 K to 79 K (+13.70 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Option Exercise	A	0.00	76,742	0	76,742
Mar 01 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Grant	A	0.00	12,745	0	942,783	930 K to 942.8 K (+1.37 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Grant	A	0.00	76,472	0	930,038	853.6 K to 930 K (+8.96 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Payment of Exercise	F	34.85	15,944	555,648	853,566	869.5 K to 853.6 K (-1.83 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Buy	M	0.00	28,562	0	869,510	840.9 K to 869.5 K (+3.40 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Bergmann Rouven	Chief Financial Off ...	Option Exercise	A	0.00	19,118	0	19,118
Mar 01 2016	MDSO	Medidata Solutions ...	Bergmann Rouven	Chief Financial Off ...	Grant	A	0.00	25,491	0	74,673	49.2 K to 74.7 K (+51.83 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Bergmann Rouven	Chief Financial Off ...	Grant	A	0.00	19,118	0	49,182	30.1 K to 49.2 K (+63.59 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Grant	A	0.00	7,647	0	91,078	83.4 K to 91.1 K (+9.17 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Payment of Exercise	F	34.85	2,620	91,307	83,431	86.1 K to 83.4 K (-3.04 %)
Mar 01 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Buy	M	0.00	5,712	0	86,051	80.3 K to 86.1 K (+7.11 %)
Feb 17 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Payment of Exercise	F	32.83	7,285	239,167	80,339	87.6 K to 80.3 K (-8.31 %)
Feb 17 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Payment of Exercise	F	32.83	1,295	42,515	87,624	88.9 K to 87.6 K (-1.46 %)
Feb 17 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Payment of Exercise	F	32.83	37,521	1,231,814	840,948	878.5 K to 840.9 K (-4.27 %)
Feb 17 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Payment of Exercise	F	32.83	6,893	226,297	878,469	885.4 K to 878.5 K (-0.78 %)
Feb 17 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Payment of Exercise	F	32.83	37,521	1,231,814	988,041	1 M to 988 K (-3.66 %)
Feb 17 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Payment of Exercise	F	32.83	6,893	226,297	1,025,562	1 M to 1 M (-0.67 %)
Feb 17 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Payment of Exercise	F	32.83	11,741	385,457	105,793	117.5 K to 105.8 K (-9.99 %)
Feb 17 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Payment of Exercise	F	32.83	2,094	68,746	117,534	119.6 K to 117.5 K (-1.75 %)
Feb 17 2016	MDSO	Medidata Solutions ...	Otner Michael I.	EVP-General Counsel	Payment of Exercise	F	32.83	7,340	240,972	102,511	109.9 K to 102.5 K (-6.68 %)
Feb 17 2016	MDSO	Medidata Solutions ...	Otner Michael I.	EVP-General Counsel	Payment of Exercise	F	32.83	1,309	42,974	109,851	111.2 K to 109.9 K (-1.18 %)
Feb 17 2016	MDSO	Medidata Solutions ...	Capone Michael L	Chief Operating Off ...	Payment of Exercise	F	32.83	2,140	70,256	69,479	71.6 K to 69.5 K (-2.99 %)
Feb 17 2016	MDSO	Medidata Solutions ...	SHAPIRO LEE	Director	Buy	P	33.45	1,500	50,175	30,131	28.6 K to 30.1 K (+5.24 %)
Feb 12 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Payment of Exercise	F	32.30	395	12,759	88,919	89.3 K to 88.9 K (-0.44 %)
Feb 12 2016	MDSO	Medidata Solutions ...	Otner Michael I.	EVP-General Counsel	Payment of Exercise	F	32.30	398	12,855	111,160	111.6 K to 111.2 K (-0.36 %)
Feb 12 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Payment of Exercise	F	32.30	2,024	65,375	1,032,455	1 M to 1 M (-0.20 %)
Feb 12 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Payment of Exercise	F	32.30	2,026	65,440	885,362	887.4 K to 885.4 K (-0.23 %)
Feb 12 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Payment of Exercise	F	32.30	619	19,994	119,628	120.2 K to 119.6 K (-0.51 %)
Apr 28 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Sell	S	45.09	10,000	450,900	125,867	135.9 K to 125.9 K (-7.36 %)
Apr 27 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Sell	S	46.36	7,500	347,700	1,078,925	1.1 M to 1.1 M (-0.69 %)
Apr 27 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Gift	G	0.00	3,489	0	1,086,425	1.1 M to 1.1 M (-0.32 %)
Apr 27 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Sell	S	46.53	68,717	3,197,402	22,361	91.1 K to 22.4 K (-75.45 %)
Apr 27 2016	MDSO	Medidata Solutions ...	Otner Michael I.	EVP-General Counsel	Sell	S	46.30	10,000	463,000	108,284	118.3 K to 108.3 K (-8.45 %)
Apr 27 2016	MDSO	Medidata Solutions ...	Otner Michael I.	EVP-General Counsel	Gift	G	0.00	150	0	118,284	118.4 K to 118.3 K (-0.13 %)
Apr 27 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Sell	S	46.36	7,500	347,700	935,321	942.8 K to 935.3 K (-0.80 %)
Jan 05 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Payment of Exercise	F	49.29	209,272	10,315,017	887,388	1.1 M to 887.4 K (-19.08 %)
Jan 05 2016	MDSO	Medidata Solutions ...	Sherif Tarek	Chairman & CEO	Grant	A	0.00	374,904	0	1,096,660	721.8 K to 1.1 M (+51.94 %)
Jan 05 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Payment of Exercise	F	49.29	110,914	5,466,951	120,247	231.2 K to 120.2 K (-47.98 %)
Jan 05 2016	MDSO	Medidata Solutions ...	Hirschfeld Steven Isaac	Vice Chairman	Grant	A	0.00	213,912	0	231,161	17.2 K to 231.2 K (+1,240.14 %)
Jan 05 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Payment of Exercise	F	49.29	209,272	10,315,017	1,034,479	1.2 M to 1 M (-16.83 %)
Jan 05 2016	MDSO	Medidata Solutions ...	de Vries Glen Michael	President	Grant	A	0.00	374,904	0	1,243,751	868.8 K to 1.2 M (+43.15 %)
Jan 05 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Payment of Exercise	F	49.29	53,663	2,645,049	89,314	143 K to 89.3 K (-37.53 %)
Jan 05 2016	MDSO	Medidata Solutions ...	Schloss Eileen	EVP, HUMAN RESOURCE ...	Grant	A	0.00	104,058	0	142,977	38.9 K to 143 K (+267.37 %)
Jan 05 2016	MDSO	Medidata Solutions ...	Otner Michael I.	EVP-General Counsel	Payment of Exercise	F	49.29	47,863	2,359,167	111,558	159.4 K to 111.6 K (-30.02 %)
Jan 05 2016	MDSO	Medidata Solutions ...	Otner Michael I.	EVP-General Counsel	Grant	A	0.00	92,310	0	159,421	67.1 K to 159.4 K (+137.55 %)

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