Announcement: Moody’s: Modest Increase in HorizonGlobal Credit Research’s Term Credit – February 25, 2021 New York, February 25, 2021 – Moody’s Investors Service, (“Moody’s”) reported that Horizon Therapeutics USA’s increase in term loan , Inc., a subsidiary of Horizon Therapeutics plc (collectively “Horizon”) is slightly negative on credit due to higher financial leverage. However, the company’s ratings, including the Ba2 Corporate Family rating, the Ba2-PD probability of default rating, the senior secured rating Ba1 and the senior unsecured rating Ba3 are not affected, and the outlook remains unchanged at stable. . For more information, please see Moody’s issuer commentary on Horizon Therapeutics USA, Inc. available at www.moodys.com. This post does not advertise any credit rating action. For all credit ratings referenced in this publication, please see the Ratings tab on the Issuer / Entity page at www.moodys.com for the most recent information on credit ratings and rating history. 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