Euronext Paris · ALSEN · stock
Sensorion SA (ALSEN) stock price history
Every Euronext Paris trading session of Sensorion SA from Apr 21, 2015 to Sep 29, 2026: 2,931 daily bars, adjusted for splits and dividends, with minute bars from Sep 17, 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.
ALSEN adjusted close, 2015 to 2026
- €925.00
- All time high, 2015
- €40.40
- 52 week high, €0.2280 low
- 2,931
- Daily sessions since 2015
Last updated Sep 29, 2026, the last stored session. Refreshes after each trading day. Full 2015 to 2026 series and minute bars.
ALSEN key facts
- Sensorion SA (ALSEN) closed at €7.84 on Sep 29, 2026 on Euronext Paris.
- ALSEN's all time high close is €925.00, set on Jul 14, 2015; its all time low close is €0.2280 on Sep 15, 2026.
- ALSEN's 52 week range is €0.2280 to €40.40.
- ALSEN returned -51.6% over the year to Sep 29, 2026 and -91.8% over five years.
- Over ten years ALSEN returned -97%, -29.5% a year compounded.
- ALSEN's deepest drawdown was -100.0% from Jul 14, 2015 to Sep 15, 2026.
- DataCedar holds 2,931 daily sessions of ALSEN history from Apr 21, 2015 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
ALSEN price chart, 2015 to 2026
ALSEN returns
Price return from the last close on or before the window start to Sep 29, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -42.4% |
| 3 months | -32.4% |
| 6 months | -56.0% |
| Year to date | -52.4% |
| 1 year | -51.6% |
| 3 years | -77.3% |
| 5 years | -91.8% |
| 10 years | -97.0% |
| Since Apr 21, 2015 | -96.5% |
| Compound annual growth, 11.4 years | -25.5% |
ALSEN records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- €925.00 on Jul 14, 2015
- All time low close
- €0.2280 on Sep 15, 2026
- 52 week high
- €40.40 on Mar 13, 2026
- 52 week low
- €0.2280 on Sep 15, 2026
- Deepest drawdown
- -100.0% from Jul 14, 2015 to Sep 15, 2026, not yet recovered
- Best single session
- +4,154% on Sep 16, 2026
- Worst single session
- -97.9% on Sep 15, 2026
- Volatility, 1 year annualised
- 546.5%
- Sessions closing higher, 1 year
- 43%
- Best calendar year
- 2020, +78%
- Worst calendar year
- 2022, -81%
ALSEN 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. 2015 starts on Apr 21, 2015; 2026 runs to Sep 29, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | €17.05 | €40.40 | €7.09 | €7.84 | -53.5% | 7.9M | 190 |
| 2025 | €31.00 | €35.30 | €7.72 | €16.85 | -47.0% | 2.4M | 255 |
| 2024 | €20.80 | €52.00 | €20.65 | €31.80 | +47.9% | 329.3K | 256 |
| 2023 | €17.52 | €43.00 | €13.00 | €21.50 | +16.2% | 324.7K | 255 |
| 2022 | €95.50 | €97.00 | €17.00 | €18.50 | -80.8% | 517K | 257 |
| 2021 | €75.00 | €144.00 | €74.25 | €96.30 | +28.4% | 584.2K | 258 |
| 2020 | €42.30 | €113.50 | €20.60 | €75.00 | +77.5% | 478K | 257 |
| 2019 | €52.40 | €85.00 | €24.00 | €42.25 | -16.0% | 329.5K | 256 |
| 2018 | €192.50 | €208.50 | €45.50 | €50.30 | -72.8% | 315.7K | 255 |
| 2017 | €243.50 | €387.00 | €129.50 | €185.00 | -23.1% | 277K | 255 |
| 2016 | €436.00 | €441.00 | €200.50 | €240.50 | -44.1% | 229.2K | 257 |
| 2015 | €212.00 | €995.00 | €195.00 | €430.00 | n/a | 259.2K | 180 |
ALSEN monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | €7.84 | -41.7% |
| August 2026 | €13.45 | -5.3% |
| July 2026 | €14.20 | +20.1% |
| June 2026 | €11.82 | -41.0% |
| May 2026 | €20.05 | -0.7% |
| April 2026 | €20.20 | -0.2% |
| March 2026 | €20.25 | +11.6% |
| February 2026 | €18.15 | +3.7% |
| January 2026 | €17.50 | +3.9% |
| December 2025 | €16.85 | +4.7% |
| November 2025 | €16.10 | -7.5% |
| October 2025 | €17.40 | +2.4% |
About the ALSEN data
Daily bars. 2,931 sessions from Apr 21, 2015 to Sep 29, 2026, one row per Euronext Paris 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 17, 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 Euronext Paris 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 Apr 21, 2015, 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/ALSEN/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Euronext Paris
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Common questions
ALSEN share price history
