Nasdaq Stockholm · BIOSGN · stock
Biosergen AB (publ) (BIOSGN) stock price history
Every Nasdaq Stockholm trading session of Biosergen AB (publ) from Jun 24, 2021 to Sep 28, 2026: 1,324 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.
BIOSGN adjusted close, 2021 to 2026
- SEK 932.53
- All time high, 2021
- SEK 55.00
- 52 week high, SEK 0.5200 low
- 1,324
- Daily sessions since 2021
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2021 to 2026 series and minute bars.
BIOSGN key facts
- Biosergen AB (publ) (BIOSGN) closed at SEK 0.5350 on Sep 28, 2026 on Nasdaq Stockholm.
- BIOSGN's all time high close is SEK 932.53, set on Aug 10, 2021; its all time low close is SEK 0.5300 on Sep 24, 2026.
- BIOSGN's 52 week range is SEK 0.5200 to SEK 55.00.
- BIOSGN returned -99.0% over the year to Sep 28, 2026 and -99.9% over five years.
- Since Jun 24, 2021 BIOSGN returned -100%, -71.1% a year compounded.
- BIOSGN's deepest drawdown was -99.9% from Aug 10, 2021 to Sep 24, 2026.
- DataCedar holds 1,324 daily sessions of BIOSGN history from Jun 24, 2021 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
BIOSGN price chart, 2021 to 2026
BIOSGN returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -82.5% |
| 3 months | -92.9% |
| 6 months | -98.5% |
| Year to date | -98.6% |
| 1 year | -99.0% |
| 3 years | -99.3% |
| 5 years | -99.9% |
| 10 years | n/a |
| Since Jun 24, 2021 | -99.9% |
| Compound annual growth, 5.3 years | -71.1% |
BIOSGN records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- SEK 932.53 on Aug 10, 2021
- All time low close
- SEK 0.5300 on Sep 24, 2026
- 52 week high
- SEK 55.00 on Oct 3, 2025
- 52 week low
- SEK 0.5200 on Sep 28, 2026
- Deepest drawdown
- -99.9% from Aug 10, 2021 to Sep 24, 2026, not yet recovered
- Best single session
- +323.0% on Aug 7, 2026
- Worst single session
- -89.5% on Jul 28, 2026
- Volatility, 1 year annualised
- 348.2%
- Sessions closing higher, 1 year
- 34%
- Best calendar year
- 2024, +2%
- Worst calendar year
- 2022, -78%
BIOSGN 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. 2021 starts on Jun 24, 2021; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | SEK 39.52 | SEK 47.80 | SEK 0.5200 | SEK 0.5350 | -98.6% | 25.8M | 186 |
| 2025 | SEK 52.80 | SEK 67.80 | SEK 28.10 | SEK 39.52 | -25.4% | 568.9K | 249 |
| 2024 | SEK 51.44 | SEK 114.00 | SEK 22.47 | SEK 53.00 | +1.9% | 499.5K | 251 |
| 2023 | SEK 65.04 | SEK 117.66 | SEK 42.86 | SEK 52.03 | -16.2% | 412.9K | 251 |
| 2022 | SEK 284.75 | SEK 433.95 | SEK 58.30 | SEK 62.08 | -78.2% | 50.8K | 253 |
| 2021 | SEK 420.29 | SEK 1,208 | SEK 270.04 | SEK 284.75 | n/a | 170.9K | 134 |
BIOSGN monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | SEK 0.5350 | -78.1% |
| August 2026 | SEK 2.44 | +271.3% |
| July 2026 | SEK 0.6571 | -86.4% |
| June 2026 | SEK 4.82 | -46.4% |
| May 2026 | SEK 9.00 | -8.6% |
| April 2026 | SEK 9.85 | -70.9% |
| March 2026 | SEK 33.80 | -12.0% |
| February 2026 | SEK 38.40 | -8.6% |
| January 2026 | SEK 42.00 | +6.3% |
| December 2025 | SEK 39.52 | -15.6% |
| November 2025 | SEK 46.80 | -0.4% |
| October 2025 | SEK 47.00 | -9.3% |
About the BIOSGN data
Daily bars. 1,324 sessions from Jun 24, 2021 to Sep 28, 2026, one row per Nasdaq Stockholm 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 Nasdaq Stockholm trading days; minute timestamps are UTC. Prices are in SEK. 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 Jun 24, 2021, 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/BIOSGN/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Nasdaq Stockholm
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Common questions
BIOSGN share price history
