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REGN trades against a final fair-value range of $917.25-$1,505.07, with the midpoint set by the accepted valuation synthesis rather than earlier draft model outputs. Fair value range: low $917, high $1505, with mid-point at $1210.
Stock analysis

REGN Regeneron Pharmaceuticals Inc. fair value $1,210–$1,505

REGN
By StockMarketAgent.AI team· supervised by
Analyzed: 2026-05-10Next update: 2026-08-10Methodology v2.4Archetype: Mature compounderNASDAQ · Health Care
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Last price
$714.89
▲ +494.83 (+69.22%)
Fair value
$1210
$1210–$1505
Rating
Strong Buy
confidence 88/100
Upside
+69.2%
upside to fair value
Margin of Safety
$1028.26
buy below · 15%
Market Cap
$74.9B
P/E fwd 13.3

§1 Executive summary

  • Composite fair value $1,210 with high case $1,505.
  • Implied upside of 69.2% to fair value.
  • Moat 9/10 · confidence 88/100 · Mature compounder.
  • Trades below fair value with a meaningful cushion to the midpoint.
Fair value
$1,210
Margin of safety
+40.9%
Confidence
88/100
Moat
9/10

Educational analysis only — not financial advice. Always do your own due diligence.

$714.89Price
FV $1,209.72
High $1,505.07

REGN trades against a final fair-value range of $917.25-$1,505.07, with the midpoint set by the accepted valuation synthesis rather than earlier draft model outputs.

  • Patented core commercial assets in
    Patented core commercial assets in Dupixent and Eylea generating sticky, recurring revenues.
  • VelociSuite R&D engine allowing highly
    VelociSuite R&D engine allowing highly efficient discovery and commercialization timelines.
  • Cycle upside
    Biotech enters a period of high M&A and pipeline validation; targeted biologics gain widespread formulary access and favorable pricing dynamics.

§2 Bear case

In a severe downside scenario, Regeneron faces simultaneous shocks: Eylea loses material share to Vabysmo and biosimilars, Dupixent growth sharply decelerates, and pipeline failures force a structural reset in operating margins below 25%. Even under these dire conditions, baseline FCFFFree cash flow to firmCash flow available to all capital providers (debt and equity) before financing costs. Discounted at WACC to derive enterprise value. generation anchors intrinsic valueIntrinsic valueThe discounted present value of all cash a business will produce over its remaining life. The theoretical anchor for fair value, computed in practice as a range across explicit assumptions. near $917, indicating the downside is already heavily priced in.

Ways this thesis can break

High-Dose Eylea Fails to Defend Share

· Low

Vabysmo and early biosimilars rapidly erode Eylea's market dominance, cratering ophthalmology revenues before pipeline assets mature.

FV impact
-25%

Dupixent Growth Wall

· Medium

Dupixent matures faster than expected and label expansions underperform, halting the company's primary top-line engine.

FV impact
-15%

R&D Pipeline Implosion

· Low

Elevated R&D spend of $5.8B yields zero meaningful commercial blockbusters, structurally degrading long-term ROIC and locking in compressed margins.

FV impact
-30%
Early-warning signals to monitor
MetricCurrentTrigger threshold
Eylea high-dose conversion rates stall below 50%.MonitorDeterioration versus the report thesis
Dupixent script volume growth decelerates below 10% YoY.MonitorDeterioration versus the report thesis
Operating margins permanently settle below 25% despite revenue growth.MonitorDeterioration versus the report thesis
Major clinical trial failures in late-stage oncology assets.MonitorDeterioration versus the report thesis
ROIC structurally breaks below the 10% threshold.MonitorDeterioration versus the report thesis

§3 Financial history

Income statement — last six periods
Line itemT−0T−1T−2T−3T−4CAGR
Period2021-12-312022-12-312023-12-312024-12-312025-12-31Trend
Revenue$12.17B$13.12B$14.20B$14.34B+4.2%
Gross profit$10.61B$11.30B$12.23B$12.24B+3.6%
Operating income$4.74B$4.05B$3.99B$3.70B-6.0%
Net income$4.34B$3.95B$4.41B$4.50B+0.9%
EPS (diluted)$71.97$38.22$34.77$38.34$41.48-12.9%
EBITDA$5.26B$4.69B$5.32B$5.82B+2.6%
R&D$3.85B$4.63B$5.23B$5.85B+11.0%
SG&A$2.12B$2.63B$2.95B$2.70B+6.3%

Quality scores

Piotroski F-score
5 / 9
0–9 quality composite
Altman Z-score
7.26
Bankruptcy risk (>3 safe)
Beneish M-score
-2.54
Earnings manipulation risk
OCF / Net income
1.11×
>1 indicates high earnings quality
Accounting quality gate
Pass
Sector-adjusted gate
ROIC
12.3%
Return on invested capital
§3

Numbers analysis

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Read the full analysis — 11 more sections.

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FAQ

REGN — frequently asked questions

  1. Based on our latest analysis, REGN looks meaningfully undervalued. The current price is $715 versus a composite fair-value midpoint of $1210 (range $917–$1505), which implies roughly 69.2% upside to the midpoint.
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