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): June 11, 2013

SEQUENOM, INC.

(Exact Name of Registrant as Specified in Charter)

3595 JOHN HOPKINS COURT

SAN DIEGO, CALIFORNIA 92121

(Address of Principal Executive Offices)

(858) 202-9000

(Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

As discussed below in Item 5.07, at our 2013 Annual Meeting of Stockholders (the “Annual Meeting”) our stockholders approved an amendment to our 2006 Equity Incentive Plan and our 1999 Employee Stock Purchase Plan to increase the number of shares of our common stock available for issuance under such plans by 4,000,000 and 2,300,000 shares, respectively.

On June 11, 2013, we held our Annual Meeting at which our stockholders (i) elected Ernst-Günter Afting, Kenneth F. Buechler, John A. Fazio, Harry F. Hixson, Jr., Myla Lai-Goldman, Richard A. Lerner, Ronald M. Lindsay, David Pendarvis and Charles P. Slacik as directors to hold office until our annual meeting of stockholders in 2014, (ii) approved an amendment to our 2006 Equity Incentive Plan to increase the number of shares of our common stock available for issuance under such plan by 4,000,000 shares, (iii) approved an amendment to our 1999 Employee Stock Purchase Plan to increase the number of shares of our common stock available for issuance under such plan by 2,300,000 shares, (iv) approved, on an advisory basis, the compensation of our named executive officers, as disclosed in our proxy statement, and (v) ratified the selection by the Audit Committee of our Board of Directors (the “Audit Committee”) of Ernst & Young LLP as our independent auditors for the fiscal year ending December 31, 2013.

We had 115,151,229 shares of common stock outstanding and entitled to vote as of the close of business on April 15, 2013, the record date for the Annual Meeting. At the Annual Meeting, 96,659,976 shares of common stock were present in person or represented by proxy for the five proposals indicated above. The following sets forth detailed information regarding the results of the voting at the Annual Meeting:

Proposal 1: The election of Ernst-Günter Afting, Kenneth F. Buechler, John A. Fazio, Harry F. Hixson, Jr., Myla Lai-Goldman, Richard A. Lerner, Ronald M. Lindsay, David Pendarvis and Charles P. Slacik as directors to hold office until our annual meeting of stockholders in 2014.

Proposal 2: To approve an amendment to our 2006 Equity Incentive Plan to increase the number of shares of our common stock available for issuance under such plan by 4,000,000 shares.

2.

Proposal 3: To approve an amendment to our 1999 Employee Stock Purchase Plan to increase the number of shares of our common stock available for issuance under such plan by 2,300,000 shares.

Proposal 4: To approve, on an advisory basis, the compensation of our named executive officers, as disclosed in our proxy statement.

Proposal 5: To ratify the selection by the Audit Committee of Ernst & Young LLP as our independent auditors for the fiscal year ending December 31, 2013.

3.

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.

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