Medidata Solutions Inc. (MDSO)

Market is closed

Insider Trading: Sales

Insider	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
Sherif Officer, Director	$17.15	14,667	$251,497.98	966,175	2011-11-01	Filing
De Officer, Director	$17.10	20,000	$341,954.00	1,160,414	2011-11-01	Filing
Hirschfeld Officer	$16.95	8,333	$141,244.35	51,163	2011-10-05	Filing
Sherif Officer, Director	$15.57	10,932	$170,187.19	980,842	2011-10-04	Filing
Sherif Officer, Director	$15.94	5,735	$91,444.00	991,774	2011-10-03	Filing
De Officer, Director	$16.00	20,000	$320,010.00	1,180,414	2011-10-03	Filing
Hirschfeld Officer	$16.99	7,643	$129,835.46	52,483	2011-09-15	Filing
Hirschfeld Officer	$16.95	690	$11,695.50	52,483	2011-09-14	Filing
Sherif Officer, Director	$17.06	16,667	$284,267.35	997,509	2011-09-15	Filing
Sherif Officer, Director	$16.65	16,667	$277,553.88	1,014,176	2011-09-14	Filing
De Officer, Director	$16.31	20,000	$326,190.00	1,200,414	2011-09-01	Filing
De Officer, Director	$19.83	20,000	$396,556.00	1,223,178	2011-08-01	Filing
Hirschfeld Officer	$19.83	8,333	$165,218.39	52,483	2011-08-01	Filing
Douglas Officer	$22.47	4,000	$89,877.60	15,522	2011-07-18	Filing
Dalziel Officer	$22.40	12,000	$268,849.20	74,493	2011-07-18	Filing
Sherif Officer, Director	$24.25	1,800	$43,650.00	1,033,607	2011-07-13	Filing
Sherif Officer, Director	$24.02	2,200	$52,851.04	1,035,407	2011-07-12	Filing
Sherif Officer, Director	$24.48	3,957	$96,869.34	1,037,607	2011-07-07	Filing
Sherif Officer, Director	$24.24	1,710	$41,443.56	1,041,564	2011-07-06	Filing
Sherif Officer, Director	$24.37	5,000	$121,849.50	1,043,274	2011-07-05	Filing