Strong Top- and Bottom-Line Growth
Total revenues rose 19% year-over-year to $3.6 billion in Q1 2026; non-GAAP diluted net income per share increased 15% to $9.47 and net income was $1.0 billion, demonstrating double-digit growth across revenues and earnings.
DUPIXENT Continued Momentum
Global DUPIXENT net sales grew 31% (constant currency) to $4.9 billion in the quarter and the franchise reported annualized global net sales near $20 billion, with broad-based demand across indications and geographies.
EYLEA HD Rapid U.S. Adoption
EYLEA HD U.S. net product sales increased 52% year-over-year to $468 million; combined U.S. EYLEA/EYLEA HD net sales were $942 million and physician demand for EYLEA HD rose sequentially ~10% in Q1.
Libtayo Growth
Global Libtayo product sales grew 54% year-over-year to $438 million, driven by uptake in advanced cutaneous squamous cell carcinoma (CSCC) and advanced non-small cell lung cancer as well as early contributions from adjuvant CSCC.
Pipeline and Regulatory Progress
FDA approval of Otarmeni (gene therapy for genetic hearing loss) with the company committing to make it available for free; positive Phase III data for cemdisiran in generalized myasthenia gravis with an expected FDA decision in Q4; garetosmab BLA accepted with priority review (PDUFA August 2026); olatorepatide Phase II China data showed up to 19% mean body weight loss at week 48.
Sanofi Collaboration and Other Revenue Strength
First-quarter Sanofi collaboration revenues were $1.6 billion, with Regeneron’s share of collaboration profits up 42% versus prior year; other revenue grew 109% to $171 million (including $101 million from ARCALYST share and Ilaris royalties). Sanofi development balance expected to be fully repaid by end of Q2, with Regeneron to recognize full share of profits starting in Q3.
Balance Sheet and Capital Allocation
Generated $848 million of free cash flow in Q1; cash and marketable securities less debt of $15.8 billion at quarter end; repurchased $800 million of stock in Q1 and Board authorized a new $3.0 billion share repurchase program (approximately $3.4 billion available).
High Non-GAAP Gross Margins
Non-GAAP gross margin on net product sales was strong at 86% in Q1, reflecting favorable product mix and high-margin portfolio performance.