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) May 9, 2017

(Exact Name of Registrant as Specified in its Charter)

(State or Other Jurisdiction of Incorporation)

Registrant's telephone number, including area code (630) 357-8500

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):

£ 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))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company                                  £

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. £

Item 5.07.  Submission of Matters to a Vote of Security Holders.

The Company’s Annual Meeting of Stockholders was held on May 9, 2017.  At the meeting, (1) the seven nominees named in the Company’s proxy statement dated March 24, 2017 were elected to serve for a term ending at the Annual Meeting in 2018 and (2) the selection of Crowe Horwath LLP to serve as the Company’s independent registered public accounting firm for 2017 was ratified.

The voting results for each proposal are set forth below:

Election of Directors:

Ratification of Crowe Horwath LLP as the Company’s independent registered public accounting firm for 2017:

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.