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 21, 2004

MULTI-FINELINE ELECTRONIX, INC.

(Exact name of registrant as specified in its charter)

Delaware	000-50812	95-3947402
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

3140 East Coronado Street

Anaheim, CA 92806

(Address of Principal Executive Offices) (Zip Code)

(714) 238-1488

(Registrant’s telephone number, including area code)

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:

¨ 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 December 21, 2004, Multi-Fineline Electronix, Inc. issued a press release announcing that two executive officers and one member of the board of directors of the company have established Rule 10b5-1 trading plans. A copy of this press release is attached hereto as Exhibit 99.1.

Item 9.01. Financial Statements and Exhibits.

(c) Exhibits

99.1 Press release issued December 21, 2004, announcing that two executive officers and one member of the board of directors of the company have established Rule 10b5-1 trading plans.

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.

Date: December 21, 2004	Multi-Fineline Electronix, Inc., a Delaware corporation
	By:	/s/    CRAIG RIEDEL
		Craig Riedel Chief Financial Officer and Secretary

EXHIBIT INDEX

Exhibit No.	Description
99.1	Press release issued December 21, 2004, announcing that two executive officers and one member of the board of directors of the company have established Rule 10b5-1 trading plans.