Investor FAQs

Investor FAQs

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What exchange does Horizon Therapeutics trade on and what is the company's symbol?
Horizon Therapeutics plc trades on Nasdaq with the ticker symbol "HZNP."
When did Horizon Therapeutics become a publicly traded company?
Horizon Therapeutics plc (previously Horizon Pharma plc) became a publicly traded company on September 19, 2014, the date of the closing of Horizon Pharma, Inc.’s acquisition of Vidara Therapeutics International plc. Horizon Pharma, Inc. became a publicly traded company on July 27, 2011.
When did Horizon Pharma plc become Horizon Therapeutics plc and what was the reason for the change?
The name of the company was changed from Horizon Pharma plc to Horizon Therapeutics plc on May 3, 2019. Horizon Therapeutics plc more clearly reflects the Company as it is today, its long-term strategy and commitment to patient care – commercializing and developing innovative new medicines to address rare diseases with very few effective options.
What is the CUSIP number for Horizon Therapeutics plc?
CUSIP NUMBER: G46188 101
What is the ISIN number for Horizon Therapeutics plc?
What is the adjusted cost basis (ACB) for Horizon Therapeutics plc?
The adjusted cost basis for Horizon Therapeutics plc is the September 18, 2014 closing price of Horizon Pharma, Inc. of USD $12.37.
When is Horizon Therapeutics’ fiscal year end?
Horizon’s fiscal year end is December 31.
Does Horizon Therapeutics offer a dividend reinvestment program (DRIP) or other direct means of purchasing its shares?
No, Horizon does not offer a dividend reinvestment program.
How do I replace my lost stock certificate or report a change of address?
Horizon’s transfer agent and registrar, Computershare, is responsible for maintaining all records of registered stockholders. They are available to resolve problems related to lost, destroyed or stolen certificates. Computershare can also facilitate changes of address or certificate holder information. If you are a Horizon stockholder, you own your shares directly (not through a broker) and need to change your records pertaining to the stock, please contact Computershare at the address and phone number below.

Computershare Investor Services

+353 1 447 5566
3100 Lake Drive,
Citywest Business Campus,
Dublin 24, D24 AK82 Ireland

United States
+1 866 286-9155 (in the U.S.)
+1 732 491 0661 (outside the U.S.)
462 South 4th Street, Suite 1600
Louisville, KY 40202
How does Horizon approach cybersecurity risk?

We are committed to protecting our Horizon information technology systems. We manage information technology systems that facilitate commercial, supply chain and regulatory activities; maintain our financial data; and store employee and customer data.

A security breach in any one of these systems could expose our customers or employees to risks of misuse of confidential information, impair our ability to effectively operate our business and manufacturing activities, or cause other disruptions, which could result in legal claims or proceedings, disrupt our operations and the supply of our products to our customers or harm our reputation, any of which could adversely affect our results of operations, financial condition and competitive positioning in the marketplace.

Our cybersecurity risk management team continually analyzes emerging cybersecurity threats in the overall environment and updates senior management and the Board of Directors on strategies to address them. We have protocols, policies and tools in place to mitigate cybersecurity risk. We are aligned to the National Institute of Standards and Technology Framework (NIST CSF). This voluntary guidance provides a framework and a toolkit for organizations to manage cybersecurity risk. In addition, we annually engage an independent third party to assess our information technology (IT) general controls and IT security. We maintain a cybersecurity insurance policy.

The Audit Committee of our Board of Directors regularly reviews our programs related to information security and technology risks, including cybersecurity. The Audit Committee and Board( is briefed at least twice a yearby our chief information officer on our cybersecurity risk management programs and the overall cybersecurity risk environment. The briefing includes discussions on topics such as information security and technology risks, cybersecurity, information risk management strategies and progress and employee training initiatives, among others.

We enhance our information security through employee training. This includes a cybersecurity review for new employees during the onboarding process, as well as regular phishing awareness campaigns throughout the year to all employees. All employees are required to review and attest to our policy of the acceptable use of our information technology. In addition, all employees are required to do mandatory cybersecurity training on an annual basis, as well as to review and attest to our cybersecurity policy. The importance of protecting Horizon’s information, resources and systems is also stressed in Horizon’s Code of Conduct & Ethics.

We work to provide the administrative, technical, and physical safeguards that will ensure the security, confidentiality, integrity and availability of confidential information and personal information from unauthorized access, use, disclosure, alteration, destruction or theft.

Click here for Horizon’s ESG Overview.

Is the Board of Directors authorized to issue blank check preferred stock?
No. Our constitution states that the terms of any preferred stock issued by Horizon Therapeutics plc must be determined by means of an ordinary resolution (i.e., requiring a majority of votes cast by shareholders). The creation of any new class of shares of the Company requires a special resolution to amend the Constitution (i.e., requiring 75 percent of votes cast by shareholders).
Was the Vidara acquisition a taxable event to Horizon Pharma, Inc. shareholders?
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When was Viela acquired by Horizon Therapeutics?
On March 15, 2021, Horizon Therapeutics plc [Nasdaq: HZNP] completed the acquisition of Viela Bio, Inc. [Nasdaq: VIE].  In connection with the transaction, all Viela shares not validly tendered into the tender offer have been cancelled and converted into the right to receive the same $53.00 per share, net to the holder thereof, in cash, without interest, subject to any applicable withholding taxes, as will be paid for all shares that were validly tendered (and not validly withdrawn) in the tender offer.  Viela common stock has ceased to be traded on the Nasdaq Global Select Market.  For additional details, see Transaction Details in the March 15, 2021 press release on the acquisition, available here.
How much was paid for my Viela shares and what was the form of payment?
Horizon Therapeutics plc paid $53.00 per share in cash, without interest, less any applicable withholding taxes but without brokerage fees or commissions or, except in certain circumstances, transfer taxes. If you were the record holder of your shares ( i.e. , a stock certificate has been issued to you) and you directly tendered your shares to us in the offer, you did not have to pay brokerage fees or similar expenses. If you owned your shares through a broker, banker or other nominee, and your broker tendered your shares on your behalf, your broker, banker or other nominee may have charged you a fee for doing so. You should consult your broker, banker or other nominee to determine whether any charges will apply.
I did not tender my Viela shares in the tender offer. What should I do to tender my shares?
Payment for Viela shares will be made promptly following the close of the transaction, which occurred on March 15, 2021.  For holders of certificates, the merger consideration will be paid only after surrender of your Viela certificates as described in the letter of transmittal Viela shareholders will or have received. If you cannot locate your Viela stock certificates, the letter of transmittal will provide instructions on what to do.  For more information, contact American Stock Transfer & Trust Company, LLC., at (877) 248-6417 or (718) 921-8317.
Is this a taxable transaction?
In general, your exchange of shares of Viela common stock for cash is a taxable transaction for U.S. federal income tax purposes and may also be a taxable transaction under applicable state, local, or foreign income or other tax laws. You should consult your tax advisor about the tax consequences of exchanging your shares pursuant to the offer in light of your particular circumstances.
How can I calculate the tax cost basis for my Viela shares?
Contact your broker for cost basis information.
Where can I find more information about the Viela acquisition?
See the press release issued upon completion of the acquisition on March 15, 2021, available here.  You may also reference the Form SC TO-C filed with the SEC on Feb. 1, 2021, which can be found here.
Are Viela shares still traded on any exchange?
With the completion of the acquisition on March 15, 2021, Viela shares have ceased to be traded on the Nasdaq Global Select Market.