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): December 13, 2005

SAVVIS, INC.

(Exact name of registrant as specified in its charter)

Delaware	0-29375	43-1809960
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)

1 SAVVIS Parkway, Town & Country, Missouri	63017
(Address of Principal Executive Office)	(Zip Code)

Registrant’s telephone number, including area code: (314) 628-7000

(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 obligations of the registrant under any of the following provisions:

¨ 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 1.01 ENTRY INTO A MATERIAL DEFINITIVE AGREEMENT

On December 13, 2005, SAVVIS, Inc. (the “Company”) approved the acceleration of vesting of certain unvested and “out-of-the-money” stock options with exercise prices equal to or greater than $0.75 per share previously awarded to its employees, including its executive officers, and its non-employee directors under the Company’s equity compensation plans. The acceleration of vesting will be effective for stock options outstanding as of December 13, 2005. Options to purchase approximately 21.1 million shares of common stock or 92% of the Company’s outstanding unvested options, including approximately 5.5 million options held by executive officers and approximately $0.2 million options held by non-employee directors, are subject to the acceleration.

Acceleration of vesting allows the Company to avoid recognizing compensation expense associated with these options in future periods in its consolidated statements of operations, upon adoption of FASB Statement No. 123R (Share-Based Payment). The Company believes that the aggregate future expense that will be eliminated as a result of the acceleration of the vesting of these options is approximately $11.2 million. The Company also believes that because the options to be accelerated have exercise prices in excess of the current market value of the Company’s common stock, the options have limited economic value and are not fully achieving their original objective of incentive compensation and employee retention.

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.

	SAVVIS, INC.
Date: December 19, 2005	By:	/s/ Jeffrey H. Von Deylen
	Name:	Jeffrey H. Von Deylen
	Title:	Chief Financial Officer