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) November 1, 2018

RTI SURGICAL, INC.

(Exact Name of Registrant as Specified in its Charter)

Registrant’s telephone number, including area code: (386) 418-8888

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.  ☐

On November 1, 2018, RTI Surgical, Inc. (the “Company”), issued a press release announcing its entry into an agreement to acquire all of the outstanding equity interest in Paradigm Spine, LLC. A copy of this press release is filed as Exhibit 99.1 to this Current Report and is incorporated in this Current Report by reference.

In addition, on November 1, 2018, the Company made available a slide presentation (the “Investor Presentation”) related to the pending acquisition. A copy of the Investor Presentation is filed as Exhibit 99.2 to this Current Report and is incorporated in this Current Report by reference.

Legend Information

Forward-Looking Statements

This Current Report contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are based on the Company’s current expectations, estimates and projections about our industry, our management’s beliefs and certain assumptions made by our management. Words such as “anticipates,” “expects,” “intends,” “plans,” “believes,” “seeks,” “estimates,” variations of such words and similar expressions are intended to identify such forward-looking statements. In addition, except for historical information, any statements made in this communication about anticipated financial results, the impact of the transaction on the complexity of the Company’s operations, any benefits of scaling caused by the transaction, the impact of the transaction on the Company’s growth rates, potential long-term growth for Coflex^® products, the impact of the transaction on the Company’s market share, and the retention of current customers or the acquisition of additional customers also are forward-looking statements. Many factors could affect our actual financial results and cause them to vary materially from the expectations contained in the forward-looking statements, including those set forth in this document. These statements are not guarantees of future performance and are subject to risks and uncertainties. These risks and uncertainties include, among other things: the failure to obtain Company stockholder approval of the proposed transaction; the possibility that the closing conditions to the proposed transaction may not be satisfied or waived, including that a governmental entity may prohibit, delay or refuse to grant a necessary regulatory approval and any conditions imposed in connection with consummation of the proposed transaction; delay in closing the proposed transaction or the possibility of non-consummation of the proposed transaction; the risk that the cost savings and any other synergies from the proposed transaction may not be fully realized or may take longer to realize than expected, including that the proposed transaction may not be accretive within the expected timeframe or to the extent anticipated; the occurrence of any event that could give rise to termination of the definitive agreement; the risk that shareholder litigation in connection with the proposed transaction may affect the timing or occurrence of the proposed transaction or result in significant costs of defense, indemnification and liability; risks related to the disruption of the proposed transaction to us and our management; the effect of the announcement of the proposed transaction on our ability to retain and hire key personnel and maintain relationships with customers, suppliers and other third parties; the ability and timing to obtain required regulatory approvals and satisfy other closing conditions; and other risks described in public filings with the U.S. Securities and Exchange Commission (SEC). Our actual results may differ materially from the anticipated results reflected in these forward-looking statements. Copies of the company’s SEC filings may be obtained by contacting the company or the SEC or by visiting the Company’s website at www.rtix.com or the SEC’s website at www.sec.gov.

Important Additional Information and Where to Find It

In connection with the proposed acquisition of Paradigm Spine, LLC, the Company will file a registration statement on Form S-4 with the SEC. This Current Report shall not constitute an offer to sell or the solicitation of an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended. INVESTORS AND SECURITY HOLDERS ARE ENCOURAGED TO READ THE REGISTRATION STATEMENT AND ANY OTHER RELEVANT DOCUMENTS FILED WITH THE SEC, INCLUDING THE PROXY STATEMENT/PROSPECTUS THAT WILL BE PART OF THE REGISTRATION STATEMENT, WHEN SUCH DOCUMENTS BECOME AVAILABLE, BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE PROPOSED TRANSACTION. The final proxy statement/prospectus will be mailed to stockholders of the Company. Investors and security holders will be able to obtain the documents free of charge at the SEC’s website, www.sec.gov, from the Comapny at its website, www.rtix.com, or by contacting the Company’s Investor Relations at (847) 530-0249.

Participants in Solicitation

The Company and its respective directors and executive officers may be deemed to be participants in the solicitation of proxies in respect of the proposed acquisition of Paradigm Spine, LLC. Information concerning the Company’s participants is set forth in the proxy statement, filed March 26, 2018, for the Company’s 2018 annual meeting of stockholders as filed with the SEC on Schedule 14A. Additional information regarding the interests of such participants in the solicitation of proxies in respect of the proposed transaction will be included in the registration statement and proxy statement/prospectus and other relevant materials to be filed with the SEC when they become available.

(d) Exhibits.

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.