LSE · 4BB · stock
4basebio PLC (4BB) stock price history
Every LSE trading session of 4basebio PLC from Feb 18, 2021 to Nov 13, 2026: 808 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.
4BB adjusted close, 2021 to 2026
- £18.20
- All time high, 2024
- £7.25
- 52 week high, £4.20 low
- 808
- Daily sessions since 2021
Last updated Nov 13, 2026, the last stored session. Refreshes after each trading day. Full 2021 to 2026 series and minute bars.
4BB key facts
- 4basebio PLC (4BB) closed at £5.25 on Nov 13, 2026 on LSE.
- 4BB's all time high close is £18.20, set on Jun 18, 2024; its all time low close is £3.10 on Mar 15, 2021.
- 4BB's 52 week range is £4.20 to £7.25.
- 4BB returned -26.3% over the year to Nov 13, 2026 and -24.5% over five years.
- Since Feb 18, 2021 4BB returned +35%, +5.4% a year compounded.
- 4BB's deepest drawdown was -76.1% from Jun 18, 2024 to May 12, 2026.
- DataCedar holds 808 daily sessions of 4BB history from Feb 18, 2021 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
4BB price chart, 2021 to 2026
4BB returns
Price return from the last close on or before the window start to Nov 13, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -6.7% |
| 3 months | -4.5% |
| 6 months | +20.7% |
| Year to date | -14.6% |
| 1 year | -26.3% |
| 3 years | +5.0% |
| 5 years | -24.5% |
| 10 years | n/a |
| Since Feb 18, 2021 | +35.5% |
| Compound annual growth, 5.7 years | +5.4% |
4BB records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- £18.20 on Jun 18, 2024
- All time low close
- £3.10 on Mar 15, 2021
- 52 week high
- £7.25 on Nov 14, 2025
- 52 week low
- £4.20 on May 13, 2026
- Deepest drawdown
- -76.1% from Jun 18, 2024 to May 12, 2026, not yet recovered
- Best single session
- +27.7% on Aug 4, 2021
- Worst single session
- -18.2% on May 12, 2022
- Volatility, 1 year annualised
- 43.2%
- Sessions closing higher, 1 year
- 14%
- Best calendar year
- 2024, +78%
- Worst calendar year
- 2025, -49%
4BB 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 Feb 18, 2021; 2026 runs to Nov 13, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | £6.15 | £6.30 | £4.20 | £5.25 | -14.6% | 185.8K | 120 |
| 2025 | £12.10 | £13.00 | £6.00 | £6.15 | -49.2% | 183.4K | 142 |
| 2024 | £6.80 | £18.20 | £6.40 | £12.10 | +77.9% | 827K | 159 |
| 2023 | £7.10 | £7.50 | £4.92 | £6.80 | -4.2% | 210K | 119 |
| 2022 | £6.15 | £7.50 | £3.90 | £7.10 | +18.3% | 298.2K | 129 |
| 2021 | £3.50 | £8.20 | £2.54 | £6.00 | n/a | 1M | 139 |
4BB monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| November 2026 | £5.25 | 0.0% |
| October 2026 | £5.25 | -6.7% |
| September 2026 | £5.63 | +18.4% |
| August 2026 | £4.75 | -9.5% |
| July 2026 | £5.25 | +1.0% |
| June 2026 | £5.20 | -1.4% |
| May 2026 | £5.28 | +4.5% |
| April 2026 | £5.05 | +6.5% |
| March 2026 | £4.74 | -13.8% |
| February 2026 | £5.50 | -4.3% |
| January 2026 | £5.75 | -6.5% |
| December 2025 | £6.15 | -13.7% |
About the 4BB data
Daily bars. 808 sessions from Feb 18, 2021 to Nov 13, 2026, one row per LSE 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 Nov 13, 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 LSE trading days; minute timestamps are UTC. Prices are in GBP. 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 Feb 18, 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/lse%3A4BB/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on LSE
Common questions
4BB share price history
