PROSPECTUS SUPPLEMENT DATED May 17, 2016 (To Prospectus dated February 2, 2016) Rule 424(b)(3) Registration No. 333-207873

MGT CAPITAL INVESTMENTS, INC.

This prospectus supplement (“Supplement”) modifies, supersedes and supplements information contained in, and should be read in conjunction with, that certain prospectus, dated February 2, 2016 (“Prospectus”), of MGT Capital Investments, Inc. (the “Company”). This Supplement is not complete without, and may not be delivered or used except in connection with, the original Prospectus.

The information attached to this Supplement modifies and supersedes, in part, the information in the Prospectus. Any information that is modified or superseded in the Prospectus shall not be deemed to constitute a part of the Prospectus, except as modified or superseded by this Supplement.

We may amend or supplement the Prospectus from time to time by filing amendments or supplements as required. You should read the entire Prospectus and any amendments or supplements carefully before you make an investment decision.

See “Risk Factors” beginning on page 2 of the prospectus dated February 2, 2016, for risk factors and information you should consider before you purchase shares.

SELLING STOCKHOLDERS

The Company has been notified that all the securities issued to the selling stockholder Melechdavid, Inc., have been sold or transferred. A portion of such securities, consisting of 600,000 shares of the Company’s common stock issued upon the exercise of warrants held by Melechdavid, Inc., was assigned to Barry Honig on May 12, 2016. Accordingly, the “Selling Stockholders” table is being amended with respect to the shares previously registered to Melechdavid, Inc. as follows:

Name of Selling Stockholder Common Stock Beneficially Owned Prior to the Offering (1) Common Stock Covered by this Prospectus Common Stock Owned Upon Completion of this Offering (1)(2) Percentage of Common Stock Owned Upon Completion of this Offering (1)(3) Barry Honig 600,000 (4) 600,000 (4) 0 0

* Less than 1%.