UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

Filed by the Registrant  ☒                             Filed by a Party other than the Registrant  ☐

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☐	Preliminary Proxy Statement
☐	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☐	Definitive Proxy Statement
☐	Definitive Additional Materials
☒	Soliciting Material Pursuant to §240.14a-11(c) or §240.14a-12

INC RESEARCH HOLDINGS, INC.

(Name of Registrant as Specified in Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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☐	Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.
	(1)	Title of each class of securities to which transaction applies:
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Persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

The following letter was made available to employees of INC Research Holdings, Inc. in connection with the merger of INC Research Holdings, Inc. and Double Eagle Parent, Inc.:

Dear Colleagues:

It’s been two weeks since we announced the merger of inVentiv Health + INC Research (read the May 10 message here), purpose-built to create a leading biopharmaceutical solutions organization.

Since then, audiences have been generating meaningful headlines worldwide:

• Employees are speaking about our complementary capabilities and the opportunities our combination will create.

• Customers are recognizing that our global scale and expanded therapeutic expertise will benefit their projects, programs and products.

• Media outlets such as The Wall Street Journal, Reuters, Fortune magazine and the Associated Press have covered our story and amplified our strategic fit.

• Analysts have validated that our efforts will be beneficial in the years to come.

• Recent INC stock performance mirrors this message and shows that our Investors/Shareholders see huge value in the combination.

Click here to read the latest “quotables” and Fast Facts that are defining our future path.

Our complementary businesses share a dedication to helping customers quickly move medicines to patients and the Executive Team for the new organization is already mapping post-close go-forward plans.

We know many of you have questions surrounding the plans for our Clinical and Commercial organizations. Change can be difficult as we all wait to hear about our post-close go-forward structure and roadmap. Our commitment to you is to continue to communicate as frequently and transparently as possible about our emerging shared company. Within the next month, you’ll learn more about our Clinical and Commercial Leadership teams and our Transition Management Office. We’ll look to provide as much detail as possible.

We encourage you to continue to stay connected with us during this time – ask questions, participate in your upcoming Business Unit Cascade meeting and stay focused on delivering great work to our customers. Make sure to regularly visit the dedicated incConnect page (News and Events section, “INC and inVentiv Health to Merge”) to learn more. If you have any questions, please reach out to any member of your business unit leadership.

This is an exciting time, filled with opportunity and growth. We appreciate your continued contributions and look forward to updating you on our transition plans.

Please note that until closing INC Research and inVentiv Health are separate companies and other than authorized integration planning activities must remain independent competitors until that time.

Regards,

Alistair Macdonald, CEO*

&

Mike Bell, Executive Chairman of the Board; President, Commercial Division*

* At close, Alistair Macdonald will be the CEO of the combined company and Mike Bell will be Executive Chairman of the Board and President of the Commercial Division.

Cautionary Statement Regarding Forward-Looking Statements

This communication includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act. Such forward-looking statements reflect, among other things, our current expectations and anticipated results of operations, all of which are subject to known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements, market trends, or industry results to differ materially from those expressed or implied by such forward-looking statements. Therefore, any statements contained herein that are not statements of historical fact may be forward-looking statements and should be evaluated as such. Without limiting the foregoing, the words “anticipates,” “believes,” “can,” “continue,” “could,” “estimates,” “expects,” “intends,” “may,” “might,” “plans,” “projects,” “should,” “would,” “targets,” “will” and the negative thereof and similar words and expressions are intended to identify forward-looking statements. Forward-looking statements by their nature address matters that are, to different degrees, uncertain, such as statements about the potential timing or consummation of the proposed transaction or the anticipated benefits thereof, including, without limitation, future financial and operating results. INC Research cautions readers that these and other forward-looking statements are not guarantees of future results and are subject to risks, uncertainties and assumptions that could cause actual results to differ materially from those expressed in any forward-looking statements. Important risk factors that may cause such a difference include, but are not limited to risks and uncertainties related to (i) the ability to obtain shareholder and regulatory approvals, or the possibility that they may delay the transaction or that such regulatory approval may result in the imposition of conditions that could cause the parties to abandon the transaction, (ii) the risk that a condition to closing of the merger may not be satisfied; (iii) the ability of INC Research and inVentiv to integrate their businesses successfully and to achieve anticipated synergies, (iv) the possibility that other anticipated benefits of the proposed transaction will not be realized, including without limitation, anticipated revenues, expenses, earnings and other financial results, and growth and expansion of the new combined company’s operations, and the anticipated tax treatment, (v) potential litigation relating to the proposed transaction that could be instituted against INC Research, inVentiv or their respective directors, (vi) possible disruptions from the proposed transaction that could harm INC Research’s and/or inVentiv’s business, including current plans and operations, (vii) the ability of INC Research or inVentiv to retain, attract and hire key personnel, (viii) potential adverse reactions or changes to relationships with clients, employees, suppliers or other parties resulting from the announcement or completion of the merger, (ix) potential business uncertainty, including changes to existing business relationships, during the pendency of the merger that could affect INC Research’s or inVentiv’s financial performance, (x) certain restrictions during the pendency of the merger that may impact INC Research’s or inVentiv’s ability to pursue certain business opportunities or strategic transactions, (xi) continued availability of capital and financing and rating agency actions, (xii) legislative, regulatory and economic developments and (xiii) unpredictability and severity of catastrophic events, including, but not limited to, acts of terrorism or outbreak of war or hostilities, as well as management’s response to any of the aforementioned factors. These risks, as well as other risks associated with the proposed transaction, will be more fully discussed in the proxy statement that will be filed with the Securities and Exchange Commission in connection with the proposed transaction. While the list of factors presented here is, and the list of factors to be presented in the proxy statement are, considered representative, no such list should be considered to be a complete statement of all potential risks and uncertainties. Unlisted factors may present significant additional obstacles to the realization of forward looking statements. Consequences of material differences in results as compared with those anticipated in the forward-looking statements could include, among other things, business disruption, operational problems, financial loss, legal liability to third parties and similar risks, any of which could have a material adverse effect on INC Research’s or inVentiv’s consolidated financial condition, results of operations, credit rating or liquidity. Unless legally required, INC Research does not assume any obligation to update any such forward-looking information to reflect actual results or changes in the factors affecting such forward-looking information.

Additional Information and Where to Find It

This communication is being made in respect of the proposed merger transaction involving INC Research and inVentiv. In connection with the proposed transaction, INC Research will file with the Securities and Exchange Commission a proxy statement and will mail the proxy statement to its shareholders. Shareholders are encouraged to read the proxy statement regarding the proposed transaction in its entirety when it becomes available and before making any voting decision as it will contain important information about the transaction. Shareholders will be able to obtain a free copy of the proxy statement (when available), as well as other filings made by INC Research regarding INC Research, inVentiv, and the proposed transaction, without charge, at the Securities and Exchange Commission’s website (http://www.sec.gov) or at INC Research’s website (investor.incresearch.com).

Participants in the Solicitation

INC Research and its respective executive officers, directors and other persons may be deemed to be participants in the solicitation of proxies from INC Research’s shareholders with respect to the special meeting of shareholders that will be held to consider and vote upon the approval of the share issuance and the proposed transaction. Information regarding the officers and directors of INC Research is included in its Annual Report on Form 10-K for the year ended Dec. 31, 2016, and INC Research’s notice of Annual Meeting of Shareholders and Proxy Statement, which were filed with the Securities and Exchange Commission on April 13, 2017. Other information regarding the participants in the solicitation and a description of their direct and indirect interests, by security holdings or otherwise, which may be different than those of INC Research’s shareholders generally, will be contained in the proxy statement (when filed) and other relevant materials to be filed with the Securities and Exchange Commission in connection with the proposed transaction. This communication is not intended to and 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 or a solicitation of any vote of approval, 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 offering 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.