About Regeneron Pharmaceuticals, Inc. (REGN)
Regeneron Pharmaceuticals, Inc. is a Biotechnology company operating in the Healthcare sector.
REGN trades on the US stock exchanges (NYSE/NASDAQ) and is classified as a large-cap stock .
Key Statistics
- Current Price
- $736.53
- Market Cap
- $77.87B
- 52-Week High
- $821.11
- 52-Week Low
- $476.49
- Sector
- Healthcare
- Industry
- Biotechnology
$1,000 Invested in Regeneron Pharmaceuticals, Inc. (REGN)
How much would $1,000 invested in REGN be worth today?
What would $1,000 invested in REGN 1 year ago be worth today?
A $1,000 investment in Regeneron Pharmaceuticals, Inc. (REGN) in 2025 would be worth $1,125 as of May 2026, representing a +12.5% total return.
What would $1,000 invested in REGN 3 years ago be worth today?
A $1,000 investment in Regeneron Pharmaceuticals, Inc. (REGN) in 2023 would be worth $992 as of May 2026, representing a -0.8% total return.
What would $1,000 invested in REGN 5 years ago be worth today?
A $1,000 investment in Regeneron Pharmaceuticals, Inc. (REGN) in 2021 would be worth $1,495 as of May 2026, representing a +49.5% total return.
What would $1,000 invested in REGN 10 years ago be worth today?
A $1,000 investment in Regeneron Pharmaceuticals, Inc. (REGN) in 2016 would be worth $2,019 as of May 2026, representing a +101.9% total return.
What would $1,000 invested in REGN at IPO be worth today?
A $1,000 investment in Regeneron Pharmaceuticals, Inc. (REGN) at IPO would be worth $35,101 as of May 2026, representing a +3410.1% total return.
Monthly Returns Heatmap
Over the past 34+ years (419 months), Regeneron Pharmaceuticals, Inc. (REGN) has averaged a monthly return of +2.90% with a median return of +0.00%. The stock had 209 positive months (50%) and 205 negative months (49%). The best month in REGN's history was February 2000 with a +358.9% return, while the worst was March 2003 at -59.0%. Historically, February tends to be the strongest month (averaging +8.7%), and March the weakest (-4.5%).
REGN's longest winning streak was 7 consecutive months of gains, while its longest losing streak was 6 consecutive months of losses. The best full year was 2000 with a cumulative return of +352.3%, and the worst was 1994 at -124.9%.
Annual Returns
Over 35 years of trading history, Regeneron Pharmaceuticals, Inc. (REGN) has delivered an average annual return of +27.88% with a median return of +20.33%. The compound annual growth rate (CAGR) is +11.19%. The stock posted gains in 22 years (63%) and losses in 13 years (37%).
REGN's best year was 1995 with a +325.00% gain, while the worst was 1994 at -80.65%. The longest streak of consecutive positive years was 7, and the longest losing streak was 4 years. REGN achieved double-digit gains (10%+) in 19 years. It suffered double-digit losses in 11 years.
| Year | Return | Start | End |
|---|---|---|---|
| 2026 | -4.46% | $770.94 | $736.53 |
| 2025 | +8.96% | $707.55 | $770.94 |
| 2024 | -18.90% | $872.40 | $707.55 |
| 2023 | +21.73% | $716.65 | $872.40 |
| 2022 | +14.25% | $627.28 | $716.65 |
| 2021 | +30.72% | $479.87 | $627.28 |
| 2020 | +28.66% | $372.96 | $479.87 |
| 2019 | +0.53% | $370.99 | $372.96 |
| 2018 | -0.65% | $373.44 | $370.99 |
| 2017 | +2.42% | $364.63 | $373.44 |
| 2016 | -32.38% | $539.23 | $364.63 |
| 2015 | +32.33% | $407.50 | $539.23 |
| 2014 | +49.05% | $273.39 | $407.50 |
| 2013 | +60.89% | $169.92 | $273.39 |
| 2012 | +208.62% | $55.06 | $169.92 |
| 2011 | +68.84% | $32.61 | $55.06 |
| 2010 | +35.77% | $24.02 | $32.61 |
| 2009 | +31.70% | $18.24 | $24.02 |
| 2008 | -23.98% | $23.99 | $18.24 |
| 2007 | +20.33% | $19.94 | $23.99 |
| 2006 | +26.23% | $15.79 | $19.94 |
| 2005 | +72.64% | $9.15 | $15.79 |
| 2004 | -37.39% | $14.61 | $9.15 |
| 2003 | -20.53% | $18.39 | $14.61 |
| 2002 | -34.27% | $27.97 | $18.39 |
| 2001 | -20.15% | $35.03 | $27.97 |
| 2000 | +176.59% | $12.66 | $35.03 |
| 1999 | +72.88% | $7.33 | $12.66 |
| 1998 | -13.87% | $8.51 | $7.33 |
| 1997 | -46.90% | $16.02 | $8.51 |
| 1996 | +26.47% | $12.66 | $16.02 |
| 1995 | +325.00% | $2.98 | $12.66 |
| 1994 | -80.65% | $15.40 | $2.98 |
| 1993 | +29.17% | $11.92 | $15.40 |
| 1992 | -33.79% | $18.00 | $11.92 |
Frequently Asked Questions: REGN
What sector is REGN in? ▼
REGN operates in the Healthcare sector, specifically in the Biotechnology industry. This sector includes pharmaceutical companies, biotechnology firms, medical device manufacturers, and healthcare providers.
How has REGN performed historically? ▼
Over 35 years of trading history, REGN has posted gains in 22 years (63% of the time). The best year was 1995 with a +325.0% return. Past performance does not guarantee future results.
How can I invest in REGN? ▼
You can invest in REGN through any brokerage account that offers access to US stock exchanges. Popular options include commission-free brokers like Fidelity, Charles Schwab, or Robinhood (US), or international brokers like Interactive Brokers. You can buy individual shares or invest through ETFs that hold REGN.
Last updated: 3/24/2026