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 18, 2015

Registrant’s telephone number, including area code: (212) 520-2300

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)

X  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))

On May 18, 2015, Steel Partners Holdings L.P., a Delaware limited partnership (the “Company”), issued a letter to its limited partners.  A copy of the letter is attached hereto as Exhibit 99.1.

The information in this Current Report, including the exhibits attached hereto, is being furnished and shall not be deemed  “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the  “Exchange Act”), or otherwise subject to the liabilities of such section.  The information in this Current Report, including the exhibits, shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any incorporation by reference language in any such filing, unless the Company expressly sets forth in such future filing that such information is to be considered “filed” or incorporated by reference therein.

The information set forth under Item 7.01 of this Current Report on Form 8-K is incorporated by reference in this Item 8.01.

SIGNATURES

Pursuant to the requirements of the Exchange Act, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Exhibits