UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): August 9, 2011

NUVASIVE, INC.

(Exact name of registrant as specified in its charter)

Delaware	000-50744	33-0768598
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(I.R.S. Employer Identification Number)

7475 Lusk Boulevard, San Diego, California 92121

(Address of principal executive offices, with zip code)

(858) 909-1800

(Registrant’s telephone number, including area code)

n/a

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01 Other Events.

On August 9, 2011, NuVasive, Inc. (the “Company”) repurchased, in privately negotiated transactions, $96.1 million of its outstanding 2.25% Convertible Senior Notes due March 2013 (the “Notes”). Additionally, on August 10, 2011 and August 12, 2011, the Company repurchased, in privately negotiated transactions, an additional $16.4 million and $6.2 million of the Notes, respectively. The aggregate purchase price totaled approximately $119.0 million (representing a price of approximately 99.4% of the principal face value of the Notes plus accrued interest).

The repurchases were made using a portion of the net proceeds from the Company’s recently completed offering of $402.5 million aggregate principal amount of 2.75% Convertible Senior Notes due 2017.

At August 12, 2011, approximately $111.3 million of the Notes’ original aggregate principal amount of $230.0 million remains outstanding.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	NUVASIVE, INC.
Date: August 12, 2011	By:	/s/ Alexis V. Lukianov
		Alexis V. Lukianov Chairman and Chief Executive Officer

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