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): July 7, 2017 (July 6, 2017)

RIGHTSIDE GROUP, LTD.

(Exact name of Registrant as specified in its charter)

Registrant’s telephone number, including area code: (425) 298-2500

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:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

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.  ☒

As previously announced, on June 13, 2017, Rightside Group, Ltd. (the “Company”) entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Donuts Inc. (“Parent”) and DTS Sub Inc. (“Purchaser”). Subject to the terms and conditions set forth in the Merger Agreement, Purchaser has commenced a cash tender offer (the “Offer”) to acquire all of the shares of the Company’s common stock (“Common Stock”) for a purchase price of $10.60 per share in cash, without interest, subject to the terms and conditions of the Merger Agreement. Following the Offer, Purchaser will merge with and into the Company, with the Company continuing as the surviving corporation and as a wholly owned subsidiary of Parent.

Pursuant to the terms of the Merger Agreement, the consummation of the Offer is conditioned upon, among other things, the waiting period applicable to the Offer under the HSR Act having expired or been terminated. This condition has been satisfied by the early termination of the HSR Act waiting period, effective on July 6, 2017.

The consummation of the Offer remains conditioned on, among other things, (1) there having been validly tendered into and not withdrawn from the Offer a number of shares of Common Stock that, together with any shares of Common Stock owned by Parent and Purchaser, if any, represents a majority of the shares of Common Stock (calculated on a fully diluted basis in accordance with the Merger Agreement) issued and outstanding immediately prior to the acceptance time of the Offer, (2) the Internet Corporation for Assigned Names and Numbers shall not have expressly denied or withheld its consent to the transaction; (3) the accuracy of the representations and warranties and compliance with the covenants contained in the Merger Agreement, subject to qualifications; and (4) other customary conditions.

Important Additional Information and Where to Find It

This announcement is for informational purposes only and is neither an offer to purchase nor a solicitation of an offer to sell shares of Rightside common stock. Donuts filed with the SEC a tender offer statement on Schedule TO, and Rightside has filed a Solicitation/Recommendation Statement on Schedule 14D-9, all with respect to the Offer (as defined in those documents). Holders of shares of Rightside common stock are urged to carefully read the relevant tender offer materials (including the Offer to Purchase, the related Letter of Transmittal and the other tender offer documents) and the Solicitation/Recommendation Statement because they contain important information that holders of shares of Rightside common stock should consider before making any decision regarding tendering their shares. The Offer to Purchase, the related Letter of Transmittal and certain other tender offer documents, as well as the Solicitation/Recommendation Statement, are available to all holders of shares of Rightside common stock at no expense to them from the Information Agent at the address and telephone number set forth on the back cover of the Offer to Purchase filed with the Schedule TO.

A free copy of the tender offer materials and the Solicitation/Recommendation Statement are also available to all Rightside stockholders by contacting Rightside at IR@rightside.rocks or by phone at (212) 331-8424, or by visiting Rightside’s website (www.rightside.co). The tender offer materials and the Solicitation/Recommendation Statement are also available for free at the SEC’s website at www.sec.gov. Rightside’s stockholders are advised to read the tender offer materials and the Solicitation/Recommendation Statement, as each may be amended or supplemented from time to time, and any other relevant documents filed with the SEC when they become available before they make any decision with respect to the tender offer because they will contain important information about the proposed transaction and the parties to the transaction.

(d) Exhibits

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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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INDEX TO EXHIBITS

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