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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1142596	Nuvasive Inc	NUVA	Surgical & Medical Instruments & Apparatus (3841)	330768598

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1345767	P Jeffrey Rydin	7475 Lusk Blvd. San Diego CA 92121	Evp, Sales, Americas	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2010-05-26	2,995	$17.91	5,622	No	4	M	Direct
Common Stock	Disposition	2010-05-26	2,995	$40.47	2,627	No	4	S	Direct
Common Stock	Acquisiton	2010-05-26	5	$23.24	2,632	No	4	M	Direct
Common Stock	Disposition	2010-05-26	5	$40.47	2,627	No	4	S	Direct
Common Stock	Acquisiton	2010-05-26	1,000	$23.24	3,627	No	4	M	Direct
Common Stock	Disposition	2010-05-26	1,000	$40.00	2,627	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (Right to Buy)	Disposition	2010-05-26	2,995	$0.00	2,995	$17.91
Common Stock	Stock Option (Right to Buy)	Disposition	2010-05-26	1,005	$0.00	1,005	$23.24

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
4,069	2009-12-05	2015-12-05	No	4	M	Direct
58,067		2017-01-16	No	4	M	Direct

Footnotes

The shares sold were acquired contemporaneously upon the cashless exercise of a stock option at an exercise price of $17.91 per share.
The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 13,2009.
The shares sold were acquired contemporaneously upon the cashless exercise of a stock option at an exercise price of $23.24 per share.
Includes 713 shares acquired by the Reporting Person under the Issuer's Employee Stock Purchase Plan on April 30, 2010 in a transaction exempt from reporting under Rule 16b-3.
25% of the total shares subject to the option vested on January 16, 2008 which was the first anniversary of the date of the grant; the remaining shares vest in 36 equal monthly installments thereafter.