Regeneron Pharmaceuticals, Inc. (REGN) - Stock Analysis

Last updated: Sep 21, 2026

Research Idea

Research content for general circulation. Not individualized advice. Methodology & Disclosures

Shares closed at a period high on November 2. Q3 revenue grew 36%, adjusted EPS beat consensus, and positive Phase 3 Pasatru results provided a separate clinical catalyst.

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Idea window: 11/3/2026 – 11/10/2026Sector: Healthcare

AI Analyst Overview

Last Price
$961.26
Market Cap
$98.95B
1D Return
+3.60%
YTD Return
+25.02%

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Valuation Metrics

P/E
20.5
P/B
2.9
P/S
5.9
EV/EBITDA
16.2
Div Yield
0.38%

Fundamental Analysis

8.0

Key Financial Insights: • High Profitability • Low Leverage • Cash Flow REGN offers strong profitability, a robust balance sheet, and reasonable valuation, but investors should monitor weakening liquidity, cash conversion, and modest margin pressure.

StrongFundamentals
LiquidityRisk

Price Behavior

4.0

Key Price Behavior Insights: • Lower highs • Support tested • Weak momentum Support Level: $774–$775 Resistance Level: $793–$810 REGN remains bearish after a ~5% decline over the last month, with support at $774–$775 offering bounce potential but a break lower signaling risk unless it reclaims $793–$810.

Bearish
SupportWatch

Sentiment & News

5.0

Key News Insights: • Lead Plaintiff Deadline • Securities Class Action • Product Growth Pipeline Regeneron faces escalating securities litigation ahead of the lead-plaintiff deadline, offset by management's growth outlook for EYLEA HD, DUPIXENT, and pipeline catalysts.

LitigationRisk
GrowthOutlook
AI

AI Summary

6.0
Neutral

REGN is now a concentrated execution trade: its strong balance sheet and valuation support upside only if DUPIXENT sustains growth and EYLEA HD offsets biosimilar erosion while upcoming pipeline catalysts rebuild credibility after the Fianlimab failure; investors should wait for evidence of improved cash conversion and clinical delivery before assuming the selloff is a buying opportunity.

DupixentGrowth
PipelineRisk
Catalysts
AI summary updated 43 days ago

Description

Regeneron Pharmaceuticals, Inc. researches, develops, manufactures and commercializes biologic medicines across ophthalmology, immunology, oncology, infectious disease and other therapeutic areas. Its marketed portfolio includes ophthalmic and immunologic treatments such as EYLEA and Dupixent, alongside oncology and infectious disease products, and a pipeline of candidates for cardiovascular, metabolic, rare and hematologic conditions. The company maintains multiple collaboration and licensing arrangements with large pharmaceutical partners and government agencies and is headquartered in Tarrytown, New York, having been incorporated in 1988.

Idea History

DateCloseTickerCompanySummaryStatusP/L
Nov 3Nov 10REGNRegeneron Pharmaceuticals, Inc.
Shares closed at a period high on November 2. Q3 revenue grew 36%, adjusted EPS beat consensus, and positive Phase 3 Pasatru results provided a separate clinical catalyst.
Active+0.0%
Research content for educational purposes only. Not investment advice. All decisions are your responsibility.