Medidata Solutions Inc. (MDSO)

Market is closed

Insider Trading: Sales

Insider	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
Sherif Officer, Director	$25.15	3,000	$75,441.00	1,088,376	2011-02-02	Filing
Hirschfeld Officer	$24.94	25,000	$623,500.00	87,059	2011-01-10	Filing
Sherif Officer, Director	$24.80	7,667	$190,172.27	1,091,376	2011-01-10	Filing
Sherif Officer, Director	$24.08	6,000	$144,454.20	1,099,043	2011-01-07	Filing
Hirschfeld Officer	$24.00	8,333	$199,967.00	112,059	2011-01-03	Filing
De Officer, Director	$24.00	20,000	$480,072.00	1,320,945	2011-01-03	Filing
Sherif Officer, Director	$24.30	3,000	$72,902.70	1,105,043	2011-01-03	Filing
Sobiloff Director	$19.35	3,370	$65,220.96	10,000	2010-11-23	Filing
Sobiloff Director	$19.77	6,630	$131,100.96	13,370	2010-11-22	Filing
Sobiloff Director	$19.00	5,000	$95,015.00	20,000	2010-11-18	Filing
Sobiloff Director	$20.06	2,914	$58,451.93	25,000	2010-11-12	Filing
Sherif Officer, Director	$20.44	6,003	$122,719.33	1,112,043	2010-12-08	Filing
Sherif Officer, Director	$20.85	995	$20,746.75	1,118,046	2010-12-07	Filing
Sherif Officer, Director	$20.73	2,000	$41,457.60	1,119,041	2010-12-06	Filing
Sherif Officer, Director	$20.58	9,000	$185,264.10	1,121,041	2010-12-03	Filing
Sherif Officer, Director	$20.70	2,000	$41,400.00	1,130,041	2010-12-01	Filing
De Officer, Director	$20.34	25,000	$508,475.00	1,345,945	2010-12-01	Filing
Dalziel Officer	$19.54	12,000	$234,480.00	56,839	2010-11-22	Filing
Sherif Officer, Director	$19.26	14,998	$288,913.97	1,132,260	2010-11-19	Filing
Sherif Officer, Director	$19.00	3,000	$57,000.00	1,147,258	2010-11-18	Filing