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): October 26, 2012

Symmetricom, Inc.

(Exact Name of Registrant as Specified in its Charter)

Registrant’s Telephone Number, Including Area Code (408) 433-0910

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):

At the 2012 Annual Meeting of Stockholders (the “Annual Meeting”) of Symmetricom, Inc. (“Symmetricom”) held on October 26, 2012, the stockholders of Symmetricom approved the amendment and restatement of Symmetricom’s 2006 Incentive Award Plan, as previously amended, to, among other things, increase the number of shares of common stock authorized for issuance thereunder by 2,000,000 shares. A description of the Amended and Restated Symmetricom, Inc. 2006 Incentive Award Plan (the “Amended and Restated Plan”) is set forth in the Proxy Statement for the Annual Meeting under the heading “Proposal No. Four — Approval of the Amended and Restated 2006 Incentive Award Plan” on pages 14-21, and the full text of the Amended and Restated Plan can be found attached as Appendix A to the Proxy Statement, each of which is incorporated by reference herein.

Set forth below are the matters that were voted on by the stockholders at the Annual Meeting and the final voting results. All of the director nominees named in the Proxy Statement for the Annual Meeting were elected, and the other proposals set forth in the Proxy Statement for the Annual Meeting were approved by the stockholders.

SIGNATURE

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.