Research memoRegeneron Pharmaceuticals, Inc. (REGN) · NASDAQMemo of October 16, 2026

Regeneron stock forecast

Regeneron’s weighted price is $1,098.59 in October 2027, with the bear case at 28%, the base case at 52% and the bull case at 20%. It hinges on whether Regeneron can replace weakening products with durable, profitable growth.

788.48
Share price today, USD
1351.74 (+73 %)
Weighted scenario, October 2029
3.4%
Real free cash flow yield
12.6x
P/E, next 12 months
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Every number traced to Regeneron's filings8 chapters · 16,925 words235 sources cited

Where could Regeneron’s shares go?

The weighted price is $1,098.59 in October 2027, implying a 40% total return including dividends. It reaches $1,351.74 in October 2029, implying a 73% total return including dividends. The bear case carries 28% and the base case 52%. The bull case carries 20%.

Share price in October 2029: our three scenarios (USD)Today 788.475553.66Bear · 28 % · -28%1439.25Base · 52 % · +84%2241.53Bull · 20 % · +186%
What the shares could be worthUSD per share at each date; in brackets the return since today's 788.48, dividends included
CaseProbabilityOctober 2027October 2028October 2029
Bear28 %742.63 (-5 %)645.48 (-17 %)553.66 (-28 %)
Base52 %1146.27 (+46 %)1300.10 (+66 %)1439.25 (+84 %)
Bull20 %1472.95 (+87 %)1814.43 (+131 %)2241.53 (+186 %)
Weighted100 %1098.59 (+40 %)1219.67 (+56 %)1351.74 (+73 %)

What this means. The Weighted row is the probability-based average of the three cases, not a promise that the shares will reach that price.

What has to go right for Regeneron?

The base path assumes the ended $595 million Sanofi development deduction lifts retained economics, Dupixent continues to grow, manufacturing normalizes and EYLEA HD replaces part of legacy EYLEA. The bear case gives earnings of $5,400 million, then $5,000 million and $4,600 million as biosimilars, payer pressure and pipeline setbacks overwhelm that recovery. The bull case gives $7,000 million, then $8,000 million and $9,200 million, requiring durable Dupixent growth, successful launches and lower disruption costs. Dupixent sales reached $17,806.7 million in 2025, but combined U.S. EYLEA sales fell 12% in the latest quarter. Management’s R&D guidance is $6,500–$6,635 million, which limits near-term margin expansion. The analyst next-twelve-month EPS estimate is $62.5594, supporting recovery but not guaranteeing it.

How much cash does Regeneron really make?

Free cash flow subtracts investment in productive assets from operating cash. On the broader definition used here, $1,213.7 million of capital spending left $3,765.2 million of free cash flow. Regeneron’s own measure was $4,080.5 million because it excluded purchased intangible rights. Those rights included the $155.0 million voucher and $160.3 million of Libtayo contingent consideration.

Stock compensation requires a further owner-focused adjustment. Regeneron recorded $993.7 million of stock-based compensation in 2025. It does not immediately consume cash, but it transfers ownership to employees or requires repurchases to offset dilution. Deducting it produces analytical “real free cash flow” of $2,771.5 million, or 19.3% of revenue.

Follow the money: real free cash flowUS$ millions
20252024202320222021
Cash from operations4,978.94,420.54,594.05,014.97,081.3
− Capital spending1,213.7881.6926.41,616.9551.9
= Free cash flow3,765.23,538.93,667.63,398.06,529.4
− Stock pay993.7982.8885.0725.0601.7
= Real free cash flow2,771.52,556.12,782.62,673.05,927.7
Free cash flow, % of revenue26.3%24.9%28.0%27.9%40.6%
Real free cash flow, % of revenue19.3%18.0%21.2%22.0%36.9%

What this means. The company's own free cash flow is higher because it leaves out payments for intangible assets, such as Libtayo rights, while our count treats them as spending.

What does an investor pay for Regeneron today?

At $788.48 and 19.5x trailing earnings, the price implies about $40.43 per share. A forward P/E of 12.6x implies about $62.58 per share. If the definitions match, investors are assuming roughly 55% earnings growth, even though the forward number has not yet been earned.

What an investor pays todayUS$ millions
Today (Oct 16, 2026)
Share price788.48
Market value (calculated)81,177.4
Enterprise value (calculated)75,889.4
P/E, last 12 months (calculated)19.5x
P/E, next 12 months (calculated)12.6x
Free cash flow yield (calculated)4.6%
Real free cash flow yield (calculated)3.4%

What this means. Enterprise value is lower than market value because the company has more cash and short-term investments than debt, making the business effectively cheaper after using that cash.

From the full memo · 1. The business

Regeneron Pharmaceuticals invents, makes and sells specialist medicines. Its business is easiest to understand by following a treatment from laboratory to patient, then following the dollar through partners, payers and costs.

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Where these numbers come from

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Regeneron dividendRegeneron earnings

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