Borsa Italiana · 1REGN · stock
Regeneron Pharmaceuticals, Inc. (1REGN) stock price history
Every Borsa Italiana trading session of Regeneron Pharmaceuticals, Inc. from Nov 27, 2023 to Sep 28, 2026: 717 daily bars, adjusted for splits and dividends, with minute bars from Sep 23, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.
1REGN adjusted close, 2023 to 2026
- €1,069
- All time high, 2024
- €723.50
- 52 week high, €464.70 low
- 717
- Daily sessions since 2023
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2023 to 2026 series and minute bars.
1REGN key facts
- Regeneron Pharmaceuticals, Inc. (1REGN) closed at €672.80 on Sep 28, 2026 on Borsa Italiana.
- 1REGN's all time high close is €1,069, set on Aug 27, 2024; its all time low close is €424.36 on Jun 2, 2025.
- 1REGN's 52 week range is €464.70 to €723.50.
- 1REGN returned +42.7% over the year to Sep 28, 2026.
- Since Nov 27, 2023 1REGN returned -7%, -2.5% a year compounded.
- 1REGN's deepest drawdown was -60.3% from Sep 3, 2024 to Jun 2, 2025.
- DataCedar holds 717 daily sessions of 1REGN history from Nov 27, 2023 and minute bars from Sep 23, 2026, adjusted for splits and dividends, served by the API under a key.
1REGN price chart, 2023 to 2026
1REGN returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -6.5% |
| 3 months | +20.7% |
| 6 months | +4.2% |
| Year to date | +2.8% |
| 1 year | +42.7% |
| 3 years | n/a |
| 5 years | n/a |
| 10 years | n/a |
| Since Nov 27, 2023 | -6.8% |
| Compound annual growth, 2.8 years | -2.5% |
1REGN records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- €1,069 on Aug 27, 2024
- All time low close
- €424.36 on Jun 2, 2025
- 52 week high
- €723.50 on Sep 2, 2026
- 52 week low
- €464.70 on Oct 13, 2025
- Deepest drawdown
- -60.3% from Sep 3, 2024 to Jun 2, 2025, not yet recovered
- Best single session
- +11.3% on Dec 13, 2023
- Worst single session
- -18.6% on May 30, 2025
- Volatility, 1 year annualised
- 32.7%
- Sessions closing higher, 1 year
- 31%
- Best calendar year
- 2025, -3%
- Worst calendar year
- 2024, -16%
1REGN price history by year
Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2023 starts on Nov 27, 2023; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | €654.60 | €723.50 | €509.20 | €672.80 | +2.8% | 1.1K | 189 |
| 2025 | €690.78 | €691.18 | €414.73 | €654.60 | -3.2% | 3.7K | 252 |
| 2024 | €803.64 | €1,083 | €665.07 | €676.54 | -15.8% | 1.7K | 253 |
| 2023 | €722.04 | €803.64 | €722.04 | €803.64 | n/a | 5 | 23 |
1REGN monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | €672.80 | -1.9% |
| August 2026 | €685.60 | +7.1% |
| July 2026 | €639.92 | +16.6% |
| June 2026 | €549.05 | +3.1% |
| May 2026 | €532.47 | -9.8% |
| April 2026 | €590.43 | -9.8% |
| March 2026 | €654.92 | -0.9% |
| February 2026 | €661.10 | +4.8% |
| January 2026 | €631.11 | -3.6% |
| December 2025 | €654.60 | -2.5% |
| November 2025 | €671.13 | +18.9% |
| October 2025 | €564.40 | +18.1% |
About the 1REGN data
Daily bars. 717 sessions from Nov 27, 2023 to Sep 28, 2026, one row per Borsa Italiana trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.
Minute bars. Stored from Sep 23, 2026 forward, most recent session Sep 28, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.
Time and currency. Session dates are Borsa Italiana trading days; minute timestamps are UTC. Prices are in EUR. Volume is shares traded on the session.
Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to Nov 27, 2023, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.
curl "https://api.datacedar.com/v3/stocks/1REGN/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Borsa Italiana
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Common questions
1REGN share price history
