UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

~~Washington~~WASHINGTON, D.C. 20549

~~Form~~FORM 8-K

~~Current~~CURRENT ~~Report~~REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (~~Date~~date of earliest event reported): ~~February~~ 22April 17, 2012

LoopNet, Inc.

(Exact ~~name~~Name of ~~registrant~~Registrant as ~~specified~~Specified in its ~~charter~~Charter)

Delaware	000-52026	77-0463987
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)
(State or Other Jurisdiction of Incorporation or Organization)	(Commission File Number)	(I.R.S. Employer Identification No.)
185 Berry Street, Suite 4000 San Francisco, CA 94107		94107
(Address of Principal Executive Offices)		(Zip Code)

LoopNet, Inc.

185 Berry Street, Suite 4000

San Francisco, CA 94107

(Address of principal executive offices, with zip code)

(415) 243-4200

(Registrant’s ~~telephone~~Telephone ~~number~~Number, ~~including~~Including ~~area~~Area ~~code~~Code)

~~Not~~N/A ~~Applicable~~

(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)~~:

¨x 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 28.~~02.~~01 ~~Results~~Other ~~of Operations and Financial Condition~~Events.

~~On February 22~~LoopNet, Inc. ~~2012,~~(the ~~LoopNet~~“Company”) and CoStar Group, Inc. (“~~LoopNet~~CoStar”) isannounced ~~issuing~~that they have reached agreement on a ~~press~~mutually ~~release~~acceptable ~~regarding~~consent ~~its~~order ~~results~~with the staff of the Federal Trade Commission (“FTC”). The consent order is subject to review and approval by the Commissioners of the FTC and if approved by the Commissioners, it would clear the way for ~~its~~the ~~fiscal~~merger ~~quarter~~of the Company and ~~year~~CoStar ~~ended~~that ~~December~~was previously announced on April 3127, 2011. The ~~full~~companies ~~text~~are not providing details of the ~~press release~~consent ~~(the~~order ~~“Press~~pending ~~Release”)~~this ~~issued~~Commission inreview ~~connection~~and ~~with~~approval. The ~~the~~Company ~~announcement~~and isCoStar ~~attached~~hope asto ~~Exhibit~~complete the merger by April 9930, 2012.1 Completion of the merger remains subject to ~~this~~the ~~Current~~expiration ~~Report~~or ontermination ~~Form~~of 8the waiting period under the Hart-KScott-Rodino Act, which would occur upon the approval by the FTC Commissioners, and other customary closing conditions.

~~The~~Cautionary ~~information~~Statements ~~contained~~Regarding ~~in this Current Report on Form 8~~Forward-KLooking and the Press Release shall be considered “furnished” pursuant to this Current Report on Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended, nor shall it be deemed incorporated by reference into any of LoopNet’s reports or filings with the Securities and Exchange Commission, whether made before or after the date hereof, except as expressly set forth by specific reference in such a filingStatements.

~~Item~~This 9Current Report on Form 8-K contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995.01 ~~Financial~~Such ~~Statements~~statements include, but are not limited to, statements about the timing of the merger, the companies’ plans, objectives, expectations and ~~Exhibits~~intentions and other statements including words such as “hope,” “anticipate,” “may,” “believe,” “expect,” “intend,” “will,” “should,” “plan,” “estimate,” “predict,” “continue” and “potential” or the negative of these terms or other comparable terminology. Such statements are based upon the current beliefs and expectations of management of the Company and CoStar and are subject to significant risks and uncertainties. Actual results may differ materially from the results anticipated in the forward-looking statements. The following factors, among others, could cause or contribute to such differences: the possibility that the Commissioners of the FTC will not approve the consent order in a timely manner or at all; the possibility that the FTC will request additional extensions to the waiting period imposed by the HSR Act; the possibility that conditions, divestitures or changes relating to the operations or assets of the Company and CoStar will be required to obtain required governmental clearances or approvals, including, but not limited to, clearance or approval by the FTC; the possibility that the merger does not close, including, but not limited to, due to the failure to obtain governmental clearances or approvals; the risk that expected cost savings or other synergies from the merger may not be fully realized or may take longer to realize than expected; the risk that the businesses of the Company and CoStar may not be combined successfully or in a timely and cost-efficient manner; the risk that business disruption relating to the merger may be greater than expected; and failure to obtain any required financing on favorable terms. Additional factors that could cause results to differ materially from those anticipated in the forward-looking statements can be found in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011 and CoStar’s Annual Report on Form 10-K for the year ended December 31, 2011, each filed with the SEC, including in the “Risk Factors” section of each of these filings, and each company’s other filings with the SEC available at the SEC’s website (http://www.sec.gov). Neither the Company nor CoStar undertakes any obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

~~(d)~~Important ~~Exhibits.~~Information ~~99.1~~for LoopNet ~~Press~~Stockholders ~~release dated February 22, 2012.~~

In connection with the proposed transaction, CoStar filed with the SEC, and the SEC declared effective, a Registration Statement on Form S-2-4 that included a preliminary proxy statement of the Company that also constituted a preliminary prospectus of CoStar. On June 7, 2011, CoStar filed a final prospectus and the Company filed a definitive proxy statement and the Company began mailing the proxy statement/prospectus to the Company’s stockholders, who approved the transaction on July 11, 2011. Investors and securityholders are encouraged to read these materials as well as any other relevant documents filed with the SEC regarding the proposed transaction, because they contain important information regarding the proposed transaction. Copies of all documents

~~SIGNATURES~~ filed with the SEC regarding the proposed transaction, including the proxy statement/prospectus, may be obtained free of charge at the SEC’s website, www.sec.gov. Copies of the proxy statement/prospectus and the filings with the SEC that are incorporated by referenced in the proxy statement/prospectus can also be obtained, free of charge, by directing a request by mail to LoopNet, Inc., Attn: Secretary, 185 Berry Street, Suite 4000, San Francisco, California 94107, by telephone at (415) 243-4200, from the investor relations section of LoopNet’s website at http://www.loopnet.com or from CoStar’s website, www.costar.com/Investors.aspx under the tab “SEC Filings.”

~~Pursuant~~2 ~~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.~~

	LoopNet, Inc.
Date: February 22, 2012	By:	/s/ Brent Stumme
		Brent Stumme
		Chief Financial Officer and Senior Vice President, Finance and Administration

SIGNATURE

~~-3-~~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.


	LOOPNET, INC.
	(Registrant)

Date: April 17, 2012	By:	/s/ Richard J. Boyle, Jr.
		Richard J. Boyle, Jr.
		Chief Executive Officer

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