COMPANY DOSSIER
Horizon Therapeutics USA Layoffs
Yes. Horizon Therapeutics USA filed a WARN notice to cut 22 jobs in Rockville, Maryland, with the layoffs effective May 8, 2026. It was filed Mar 9, 2026 under the federal WARN Act.
22 roles affected across 1 filing.
Canary status: SingingEVIDENCE-BASED · NOT A PREDICTION
No WARN filing or SEC event in the recent window — quiet on the wire right now.
CanaryWhistle's own assessment, computed from the public filings listed on this page. It is a read of hiring and workforce activity, not a statement about Horizon Therapeutics USA's solvency or creditworthiness. Not a credit rating and not financial advice. See our sources and method.
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Rockville, Maryland
Filed Mar 9, 2026 (4mo ago) · Effective May 8, 2026 · official filing →
22
LayoffQuestions
Is Horizon Therapeutics USA laying off employees?
Yes. Horizon Therapeutics USA filed a WARN notice to cut 22 jobs in Rockville, Maryland, with the layoffs effective May 8, 2026. It was filed Mar 9, 2026 under the federal WARN Act.
How many jobs is Horizon Therapeutics USA cutting?
22 jobs, across 1 official WARN filing.
When do the Horizon Therapeutics USA layoffs take effect?
The filing lists an effective date of May 8, 2026. The WARN Act requires roughly 60 days' advance notice, so the filing date precedes the job losses.
Watching Horizon Therapeutics USA?
We'll email you if there are further filings, expansions, or new locations affected.