REGN
Regeneron Pharmaceuticals Inc
Nasdaq · usd
Regeneron Pharmaceuticals Inc (REGN) trades at $805.02 (-1.72%) as of 7:30:04 PM EDT on Oct 23, 2026, +1.13% over the past month. Market cap is $84.33B, with 2.5 days to cover in short interest.
Stock performance
How Regeneron Pharmaceuticals Inc (REGN) stock has performed from one day to one year, with its 52-week range.
- 1D
- -1.72%
- 1W
- +1.81%
- 1M
- +1.13%
- YTD
- +4.29%
- 1Y
- +37.54%
- 52-wk range
- $575.93 – $859.34
Key statistics
Today's trading snapshot for REGN: day range, open, previous close, volume and market cap.
- Day range
- $801.22 – $819.09
- Open
- $819.09
- Prev close
- $819.09
- Volume
- 527.74K
- Market cap
- $84.33B
- Shares out
- 101.14M
Valuation and profitability ratios: P/E, P/S, ROE
Valuation and profitability ratios for Regeneron Pharmaceuticals Inc: P/E, P/S, P/B, ROE and more.
- P/E
- 19.48
- P/S
- 5.43
- P/B
- 2.66
- P/FCF
- 22.43
- ROE
- 13.7%
- ROA
- 10.4%
- Debt/Equity
- 0.09
- Div yield
- 0.45%
As of Oct 22, 2026
8-K filings
Material corporate events Regeneron Pharmaceuticals Inc has disclosed to the SEC on Form 8-K.
- Deal agreementsOct 6, 2026
The Sixth Amendment... amends the Amended and Restated License and Collaboration Agreement... Pursuant to the Sixth Amendment, Sanofi will make an upfront payment to Regeneron of $1.0 billion. In addition, ... Regeneron will be entitled to receive up to an additional $7.0 billion of payments in the aggregate upon the achievement of certain development, regulatory, and commercial milestones.
- Executive leadershipSep 30, 2026
Awards are capped at 2,700,000 PSUs (CEO) and 2,900,000 PSUs (CSO), regardless of greater performance. ... Executives must remain continuously employed or otherwise provide service through the applicable earnout measurement dates during the full 10-year performance period ending December 31, 2035 (subject to certain qualifying termination protections).
- Earnings and performanceJul 6, 2026
Regeneron currently expects that its financial results calculated in accordance with U.S. generally accepted accounting principles ('GAAP') and its non-GAAP financial results for the second quarter 2026 will include an acquired in-process research and development ('IPR&D') charge of approximately $127 million on a pre-tax basis. Regeneron's results for the second quarter 2026 have not been finalized and are subject to Regeneron's financial statement closing procedures.
- Shareholder meetingsJun 17, 2026
At the 2026 Annual Meeting of Shareholders of Regeneron Pharmaceuticals, Inc. held on June 12, 2026, Regeneron's shareholders voted on the matters set forth below. The following nominees for Class II directors were elected to serve until the 2027 Annual Meeting of Shareholders based upon the following votes: Joseph L. Goldstein, M.D., Christine A. Poon, David P. Schenkein, M.D., Craig B. Thompson, M.D., and Huda Y. Zoghbi, M.D.
- Earnings and performanceApr 8, 2026
Regeneron currently expects that its financial results calculated in accordance with U.S. generally accepted accounting principles ('GAAP') and its non-GAAP financial results for the first quarter 2026 will include an acquired in-process research and development ('IPR&D') charge of approximately $102 million on a pre-tax basis... Regeneron's results for the first quarter 2026 have not been finalized and are subject to Regeneron's financial statement closing procedures.
Dividend history and stock splits
Regeneron Pharmaceuticals Inc's recent dividend payments and stock splits.
Dividends
- $0.94ex-div Aug 18, 2026
- $0.94ex-div May 20, 2026
- $0.94ex-div Feb 20, 2026
- $0.88ex-div Nov 20, 2025
Splits
No recent splits.
REGN short interest
How heavily REGN is shorted: shares short, days to cover and average daily volume.
- Days to cover
- 2.5
- Short interest
- 2.15M
- Avg volume
- 863.84K
As of · reported to FINRA twice monthly.
REGN news
The latest news and headlines about Regeneron Pharmaceuticals Inc (REGN).
- Facing Investing FearspositiveThe Motley Fool· Oct 23, 2026
- Regeneron (REGN) Earnings Expected to Grow: What to Know Ahead of Next Week's ReleaseneutralZacks Investment Research· Oct 23, 2026
- Forget Eli Lilly and Novo: This Biotech Could Be a Surprising Winner in the Weight Loss MarketpositiveThe Motley Fool· Oct 19, 2026
- Forget Eylea: Regeneron's Real Value May Be Hiding in Its Dupixent Profit SharepositiveThe Motley Fool· Oct 17, 2026
- Libtayo® (cemiplimab) Recommended for EU Approval by the CHMP for Updated Dosing Regimen Across All Approved Cancer TypespositiveGlobeNewswire Inc.· Oct 16, 2026
Frequently asked questions
What is the Regeneron Pharmaceuticals Inc (REGN) stock price today?
Regeneron Pharmaceuticals Inc (REGN) is trading at $805.02 (-1.72% on the day) as of 7:30:04 PM EDT on Oct 23, 2026. Prices are delayed at least 15 minutes; real-time quotes are available from the Massive API.
What is Regeneron Pharmaceuticals Inc?
Regeneron Pharmaceuticals discovers, develops, and commercializes products that fight eye disease, cardiovascular disease, cancer, and inflammation. The company has several marketed products, including low-dose Eylea and Eylea HD, approved for wet age-related macular…
What is the short interest in REGN?
As of Sep 30, 2026, REGN has 2.15M shares short and 2.5 days to cover.
Does Regeneron Pharmaceuticals Inc (REGN) pay a dividend?
Yes. Regeneron Pharmaceuticals Inc (REGN)'s most recent dividend was $0.94 per share, with an ex-dividend date of Aug 18, 2026. Full REGN dividend history is available from the Massive API.
What exchange is REGN listed on?
Regeneron Pharmaceuticals Inc (REGN) trades on Nasdaq in USD, in the PHARMACEUTICAL PREPARATIONS industry.
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