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Filing Details

Accession Number:: 0001140361-10-015931
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2010-04-09 13:00:00
Reporting Period:: 2009-06-30

Filing Date:: 2010-04-09
Accepted Time:: 2010-04-09 14:21:10
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1453814	Medidata Solutions Inc.	MDSO	Services-Prepackaged Software (7372)	522319066

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1221762	Peter Sobiloff	680 Fith Avenue - 8Th Floor New York NY 10019		Yes	No	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2009-06-30	5,436,706	$0.00	5,440,277	No	4	C	Indirect	See Footnote (2)
Common Stock	Disposition	2009-06-30	631,835	$13.02	4,808,442	No	4	S	Indirect	See Footnote (2)
Common Stock	Disposition	2009-12-14	2,960,528	$14.18	1,847,914	No	4	S	Indirect	See Footnote (2)
Common Stock	Disposition	2009-12-24	825,000	$14.18	1,022,914	No	4	S	Indirect	See Footnote (2)

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	C	Indirect	See Footnote (2)
No	4	S	Indirect	See Footnote (2)
No	4	S	Indirect	See Footnote (2)
No	4	S	Indirect	See Footnote (2)

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Series D Convertible Redeemable Preferred Stock	Acquisiton	2009-06-30	2,718,353	$0.00	5,436,706	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0		2009-06-30	No	4	C	Indirect

Footnotes

On June 24, 2009, Peter Sobiloff was issued 3,571 shares of restricted stock ("Restricted Stock"). The shares of Restricted Stock vest over a two-year period, fifty percent (50%) on the first anniversary of the grant and the remaining fifty percent (50%) on the second anniversary of the grant.Peter Sobiloff is required to ultimately surrender or credit to Insight Venture Partners IV, L.P., Insight Venture Partners (Cayman) IV, L.P., Insight Venture Partners IV (Co-Investors), L.P. and Insight Venture Partners IV (Fund B), L.P. (collectively, the "Insight Partnerships") all compensation he receives from the Issuer, including all stock, stock options, restricted stock and other forms of stock-based awards, pro rata in accordance with such Insight Partnership's ownership of the Issuer's securities. Mr. Sobiloff therefore disclaims beneficial ownership of all such Restricted Stock and Options, except to the extent of his pecuniary interest therein.
The amount listed reflects the beneficial ownership of the Issuer's securities owned by the Insight Partnerships, all of which may be deemed attributable to the Insight Venture Associates IV, L.L.C. (the "Insight GP") because the Insight GP is the sole general partner of each of the Insight Partnerships. The managing member of the Insight GP is Insight Holdings Group, L.L.C. ("Insight Holdings"). Insight Holdings is managed by its board of managers. Jeffery Horing, Peter Sobiloff and Deven Parekh, the members of the board of managers of Insight Holdings, share the voting and investment power with respect to the securities held by the Insight Partnerships. Each of Messrs. Horing, Sobiloff and Parekh disclaim beneficial ownership of such securities, except to the extent of his pecuniary interest therein.
The Issuer's Series D Convertible Redeemable Preferred Stock automatically converted into Common Stock on a two-for-one basis immediately prior to the closing of the Issuer's initial public offering.
Represents public offering price of $14.00 per share less the underwriter's discount of $0.98 per share.
Represents public offering price of $15.00 per share less the underwriter's discount of $0.825 per share.