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Horizon Pharma plc Information Request Form

Levi & Korsinsky, LLP announces the filing of a class action lawsuit in the USDC for the Southern District of New York on behalf of shareholders of Horizon Pharma plc (“Horizon Pharma” or the “Company”) (NASDAQGS: HZNP) who purchased shares between March 13, 2014 and February 26, 2016.

The complaint alleges that throughout the Class Period, Defendants made false and/or misleading statements and/or failed to disclose that: (i) Horizon’s Prescriptions Made Easy (“PME”) program was designed to artificially inflate the prices of minor differentiation standard retail drugs; (ii) sales revenues from drugs sold through Horizon’s PME program were unsustainable at these inflated price levels; and (iii) Horizon’s use of its PME program left the Company subject to increased regulatory risks. On February 29, 2016, Horizon disclosed in its 2015 annual report that the Company received a subpoena in November 2015 from the Office of the U.S. Attorney for the Southern District of New York for documents and information related to the Company’s patient assistance programs and other aspects of Horizon’s sales and marketing activities.

If you suffered a loss in Horizon you have until May 9, 2016 to request that the Court appoint you as lead plaintiff. Your ability to share in any recovery doesn’t require that you serve as a lead plaintiff.

To receive more information, please fill out the form.

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Levi & Korsinsky, LLP does not share your information with others. There is no cost or obligation for you to submit.

This submission does not create an attorney-client relationship. If we believe that you might be an appropriate lead plaintiff, we will contact you to discuss whether to establish an attorney-client relationship.

This letter confirms that you have retained Levi & Korsinsky, LLP to represent you as a named plaintiff in a shareholder action involving Horizon Pharma plc.

We agree to advance all expenses in the litigation, which means that you are not liable to pay any of the expenses of the lawsuit, whether attorneys' fees or costs. Regardless of the result, we will never ask you to directly pay for any attorneys' fees or costs. Should we obtain a favorable result, we may ask the court to award us compensation to be paid by the defendants or as a portion of any class benefit, but, again, we will never ask you to directly pay any of the costs of this litigation.

As the client you are entitled to direct the litigation in any way you deem proper, and may at any time order us to dismiss the case or opt-out. Should you choose to do so, we will never ask you to reimburse us directly for any legal fees or expenses. During the course of this litigation, we may employ and/or work with other law firms to prosecute your case.

We look forward to representing you and other Horizon Pharma plc shareholders.

Sincerely,

Levi & Korsinsky,LLP

Joseph Levi

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