Medidata Solutions Inc. (MDSO)

Market is closed

Insider Trading: Sales

Insider	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
Dalziel Officer	$25.62	12,000	$307,392.00	56,839	2011-04-18	Filing
Douglas Officer	$25.64	3,000	$76,917.00	8,133	2011-04-18	Filing
Sherif Officer, Director	$25.54	4,982	$127,238.29	1,041,375	2011-04-11	Filing
Sherif Officer, Director	$26.03	6,000	$156,163.20	1,046,357	2011-04-07	Filing
Sherif Officer, Director	$25.57	3,000	$76,700.10	1,052,357	2011-04-05	Filing
Sherif Officer, Director	$26.35	2,685	$70,747.07	1,055,357	2011-04-04	Filing
De Officer, Director	$25.38	20,000	$507,540.00	1,260,945	2011-04-01	Filing
Hirschfeld Officer	$25.38	8,333	$211,474.87	62,060	2011-04-01	Filing
Dalziel Officer	$25.17	12,000	$301,980.00	56,839	2011-03-21	Filing
Sherif Officer, Director	$26.80	6,667	$178,702.27	1,058,042	2011-03-08	Filing
Sherif Officer, Director	$26.63	2,000	$53,259.60	1,064,709	2011-03-04	Filing
Sherif Officer, Director	$26.62	2,000	$53,239.60	1,066,709	2011-03-03	Filing
Sherif Officer, Director	$26.36	2,000	$52,721.00	1,068,709	2011-03-02	Filing
Sherif Officer, Director	$26.34	4,000	$105,350.00	1,070,709	2011-03-01	Filing
Hirschfeld Officer	$26.10	8,333	$217,512.13	70,393	2011-03-01	Filing
De Officer, Director	$26.11	20,000	$522,146.00	1,280,945	2011-03-01	Filing
Sherif Officer, Director	$25.73	11,367	$292,499.05	1,074,709	2011-02-07	Filing
Sherif Officer, Director	$24.51	2,300	$56,364.95	1,086,076	2011-02-04	Filing
Hirschfeld Officer	$24.99	8,333	$208,200.01	78,726	2011-02-01	Filing
De Officer, Director	$24.99	20,000	$499,806.00	1,300,945	2011-02-01	Filing