UNITED STATES 

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

~~REPORT~~Report OFof ~~FOREIGN~~Foreign ~~PRIVATE~~Private ~~ISSUER PURSUANT TO RULE~~ Issuer

Pursuant to Rule 13a-16 ORor 15d-16 ~~UNDER THE SECURITIES EXCHANGE ACT OF 1934~~of

~~For~~ the ~~month~~Securities ofExchange ~~March~~Act ~~2012~~of 1934

Commission File Number 001-31586

For the month of,	April	2012
Commission File Number	001-31586
MINEFINDERS CORPORATION LTD.
(Translation of registrant’s name into English)
Suite 2288 - 1177 West Hastings Street, Vancouver, BC V6E 2K3, Canada
(Address of principal executive offices)

~~MINEFINDERS~~ Indicate ~~CORPORATION~~by ~~LTD.~~  check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40F:

~~(Translation~~Form of20-F ~~registrant's~~Form ~~name~~40-F ~~into English)~~X

~~Suite~~ Indicate ~~2288~~by -check ~~1177~~mark ~~West~~if ~~Hastings~~the ~~Street,~~registrant ~~Vancouver,~~is BCsubmitting ~~V6E~~the ~~2K3,~~Form 6-K ~~Canada~~in paper as permitted by Regulation S-T Rule 101(b)(1):

~~(Address~~ Indicate ofby ~~principal~~check ~~executive~~mark ~~office~~if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):

Indicate by check mark whether by furnishing the information contained in this Form, the registrant ~~files~~is oralso ~~will~~thereby ~~file~~furnishing ~~annual~~the ~~reports~~information ~~under~~to ~~cover~~the ~~Form~~Commission ~~20-F~~pursuant orto ~~Form~~Rule 4012g3-F.2(b) ~~Form~~under ~~20-F~~the ~~o Form~~Securities ~~40-F~~Exchange xAct of 1934.

~~Indicate~~Yes byNo ~~check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): o~~X

~~Note:~~ If ~~Regulation~~“Yes” ~~S-T~~is ~~Rule~~marked, ~~101(b)(1)~~indicate ~~only~~below ~~permits~~ the ~~submission~~file innumber ~~paper~~assigned ~~of a Form 6-K if submitted solely~~ to ~~provide~~the anregistrant ~~attached~~in ~~annual~~connection ~~report~~with toRule ~~security holders.~~12g3-2(b): 82-_______________

~~Indicate~~DOCUMENTS byINCLUDED ~~check~~AS ~~mark~~PART ifOF ~~the~~THIS ~~registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o~~REPORT

~~Note:~~Document ~~Regulation~~1 ~~S-T~~Material ~~Rule~~Change 101(b)(7) only permits the submission in paper of a Form 6-K if submitted to furnish a report or other document that the registrant foreign private issuer must furnish and make public under the laws of the jurisdiction in which the registrant is incorporatedReport, ~~domiciled~~dated orApril ~~legally organized (the registrant’s “home country”)~~4, or under the rules of the home country exchange on which the registrant’s securities are traded, as long as the report or other document is not a press release, is not required to be and has not been distributed to the registrant’s security holders, and, if discussing a material event, has already been the subject of a Form 6-K submission or other Commission fling on EDGAR.2012

~~Indicate~~Document by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934. Yes o No x1

IfFORM ~~"Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3~~51-~~2(b): 82-__________.~~102F3

~~Exhibit~~MATERIAL ~~99.1~~CHANGE ~~PAN AMERICAN SILVER COMPLETES ACQUISITION OF MINEFINDERS~~REPORT

ITEM 1.	Name and Address of Company

	Minfinders Corporation Ltd. (“Minefinders”)
	2288 – 1177 West Hastings Street
	Vancouver, BC V6E 2K3

ITEM 2.	Date of Material Change

	March 30, 2012

ITEM 3.	News Release

	Minefinders disseminated a joint press release with Pan American Silver Corp. (“Pan American”) in respect of the material change on March 30, 2012 via Marketwire. The joint press release was filed on SEDAR on March 30, 2012.

ITEM 4.	Summary of Material Change

	Minefinders completed the previously announced plan of arrangement (the “Arrangement”) whereby Pan American acquired all of the issued and outstanding common shares of Minefinders.

ITEM 5.	Full Description of Material Change

	Minefinders completed the previously announced Arrangement whereby Pan American acquired all of the issued and outstanding common shares of Minefinders.

	Under the terms of the Arrangement, former Minefinders shareholders who elected the full proration option received Cdn.$1.84 and 0.55 of a Pan American share in respect of each of their Minefinders shares. Former Minefinders shareholders who elected the Pan American share option received 0.6235 Pan American Shares and Cdn.$0.0001 for each of their Minefinders shares, and those who elected the cash option received Cdn.$2.0306 and 0.5423 of a Pan American share in respect of each of their shares. Pan American paid an aggregate of $165,264,109.55 and issued a total of 49,397,952 common shares pursuant to the Arrangement.

	Minefinders shares are expected to be delisted from trading on the Toronto Stock Exchange (the “TSX”) on or before April 5, 2012 and the NYSE Amex Equities (“NYSE Amex”) on or before April 12, 2012, subject to confirmation from the TSX and the NYSE Amex.

ITEM 6.	Reliance on Subsection 7.1(2) of National Instrument 51-102

	This report is not being filed on a confidential basis.

ITEM 7.	Omitted Information

	There are no significant facts required to be disclosed herein which have been omitted.

ITEM 8.	Executive Officer

	For further information, please contact:

	Name:	Delaney Fisher, Corporate Secretary
	Telephone:	(604) 684-1175

ITEM 9.	Date of Report

	April 4, 2012

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, thereunto duly authorized.

MINEFINDERS CORPORATION LTD. (Registrant) Date: March 30, 2012 By: /s/ Mark H. Bailey Name: Mark H. Bailey Title: President and Chief Executive Officer

MINEFINDERS CORPORATION LTD.

(Registrant)

April 11, 2012

/s/ Delaney Fisher

Name: Delaney Fisher

Title: Corporate Secretary

Filing Compare · MINEFINDERS CORP LTD.