UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 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 20, 2013

ROCKWELL MEDICAL, INC.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code (248) 960-9009

Not applicable

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

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):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o 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 May 20, 2013, Rockwell Medical, Inc. (the “Company”) issued a press release announcing the closing of its previously announced firm commitment underwritten offering of 13,196,721 shares of the Company’s common stock, including 1,721,311 shares of common stock sold pursuant to an exercise of the over-allotment option.  Net proceeds from the offering were approximately $37.7 million, after deducting underwriting discounts and commissions and the Company’s estimated offering expenses.  A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated by reference herein.

Item 9.01                                           Financial Statements and Exhibits.

Exhibit 99.1                              Press Release, dated May 20, 2013

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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