TSX · CSCI · stock
COSCIENS Biopharma Inc. (CSCI) stock price history
Every TSX trading session of COSCIENS Biopharma Inc. from Sep 18, 1996 to Sep 25, 2026: 7,543 daily bars, adjusted for splits and dividends, with minute bars from Sep 18, 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.
CSCI adjusted close, 1996 to 2026
- CA$6,302,025
- All time high, 2000
- CA$39.60
- 52 week high, CA$7.00 low
- 7,543
- Daily sessions since 1996
Last updated Sep 25, 2026, the last stored session. Refreshes after each trading day. Full 1996 to 2026 series and minute bars.
CSCI key facts
- COSCIENS Biopharma Inc. (CSCI) closed at CA$8.60 on Sep 25, 2026 on TSX.
- CSCI's all time high close is CA$6,302,025, set on Mar 13, 2000; its all time low close is CA$7.05 on Aug 6, 2026.
- CSCI's 52 week range is CA$7.00 to CA$39.60.
- CSCI returned -72.3% over the year to Sep 25, 2026 and -98.8% over five years.
- Over ten years CSCI returned -100%, -46.1% a year compounded.
- CSCI's deepest drawdown was -100.0% from Mar 14, 2000 to Aug 6, 2026.
- DataCedar holds 7,543 daily sessions of CSCI history from Sep 18, 1996 and minute bars from Sep 18, 2026, adjusted for splits and dividends, served by the API under a key.
CSCI price chart, 1996 to 2026
CSCI returns
Price return from the last close on or before the window start to Sep 25, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +14.7% |
| 3 months | -67.9% |
| 6 months | -17.6% |
| Year to date | -66.1% |
| 1 year | -72.3% |
| 3 years | -92.6% |
| 5 years | -98.8% |
| 10 years | -99.8% |
| Since Sep 18, 1996 | -100.0% |
| Compound annual growth, 30.0 years | -35.2% |
CSCI records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- CA$6,302,025 on Mar 13, 2000
- All time low close
- CA$7.05 on Aug 6, 2026
- 52 week high
- CA$39.60 on Apr 7, 2026
- 52 week low
- CA$7.00 on Jul 29, 2026
- Deepest drawdown
- -100.0% from Mar 14, 2000 to Aug 6, 2026, not yet recovered
- Best single session
- +199.3% on Feb 8, 2021
- Worst single session
- -66.8% on Apr 2, 2012
- Volatility, 1 year annualised
- 151.1%
- Sessions closing higher, 1 year
- 42%
- Best calendar year
- 2010, +102%
- Worst calendar year
- 2015, -91%
CSCI 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. 1996 starts on Sep 18, 1996; 2026 runs to Sep 25, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | CA$26.10 | CA$39.60 | CA$7.00 | CA$8.60 | -66.4% | 96.4K | 185 |
| 2025 | CA$35.55 | CA$58.14 | CA$25.20 | CA$25.56 | -26.4% | 72.7K | 251 |
| 2024 | CA$90.36 | CA$136.17 | CA$32.85 | CA$34.74 | -62.5% | 38.8K | 252 |
| 2023 | CA$153.72 | CA$190.80 | CA$68.76 | CA$92.52 | -40.2% | 7.9K | 250 |
| 2022 | CA$450.00 | CA$486.00 | CA$144.00 | CA$154.80 | -62.6% | 16.1K | 250 |
| 2021 | CA$459.00 | CA$4,167 | CA$405.00 | CA$414.00 | -14.8% | 67.6K | 251 |
| 2020 | CA$1,062 | CA$1,800 | CA$333.00 | CA$486.00 | -54.6% | 13.3K | 252 |
| 2019 | CA$3,654 | CA$6,687 | CA$909.00 | CA$1,071 | -70.7% | 5.5K | 251 |
| 2018 | CA$2,745 | CA$4,626 | CA$1,350 | CA$3,654 | +36.2% | 5.3K | 251 |
| 2017 | CA$4,473 | CA$4,554 | CA$990.00 | CA$2,682 | -38.4% | 16.1K | 250 |
| 2016 | CA$5,589 | CA$6,588 | CA$3,393 | CA$4,356 | -21.8% | 6.5K | 251 |
| 2015 | CA$65,700 | CA$99,000 | CA$3,897 | CA$5,571 | -91.0% | 5.7K | 251 |
| 2014 | CA$133,200 | CA$153,900 | CA$49,500 | CA$62,100 | -53.1% | 86 | 251 |
| 2013 | CA$211,500 | CA$310,500 | CA$93,600 | CA$132,300 | -38.0% | 21 | 251 |
| 2012 | CA$847,800 | CA$1,161,000 | CA$157,500 | CA$213,300 | -74.7% | 21 | 251 |
| 2011 | CA$912,600 | CA$1,382,400 | CA$756,000 | CA$842,400 | -9.3% | 14 | 250 |
| 2010 | CA$464,400 | CA$1,204,200 | CA$432,000 | CA$928,800 | +102.4% | 96 | 251 |
| 2009 | CA$313,200 | CA$1,884,600 | CA$307,800 | CA$459,000 | +46.6% | 42 | 251 |
| 2008 | CA$820,800 | CA$1,036,800 | CA$237,600 | CA$313,200 | -61.8% | 2 | 252 |
| 2007 | CA$2,575,800 | CA$2,813,400 | CA$739,800 | CA$820,800 | -67.8% | 15 | 252 |
| 2006 | CA$1,791,901 | CA$3,240,000 | CA$1,643,082 | CA$2,548,800 | +42.2% | 63 | 251 |
| 2005 | CA$2,265,692 | CA$2,396,288 | CA$1,473,003 | CA$1,791,901 | -21.3% | 17 | 251 |
| 2004 | CA$1,327,222 | CA$3,492,689 | CA$1,251,294 | CA$2,277,840 | +74.4% | 112 | 253 |
| 2003 | CA$1,819,235 | CA$3,037,120 | CA$1,069,066 | CA$1,305,962 | -27.4% | 69 | 252 |
| 2002 | CA$2,946,007 | CA$3,255,793 | CA$911,136 | CA$1,797,975 | -37.7% | 3 | 252 |
| 2001 | CA$3,340,833 | CA$4,024,185 | CA$1,898,200 | CA$2,885,264 | -13.2% | 2 | 251 |
| 2000 | CA$2,991,564 | CA$6,575,366 | CA$2,338,583 | CA$3,325,647 | +11.2% | 31 | 251 |
| 1999 | CA$1,837,458 | CA$3,006,749 | CA$1,305,962 | CA$2,991,564 | +62.8% | 2 | 252 |
| 1998 | CA$2,217,098 | CA$2,399,325 | CA$1,305,962 | CA$1,837,458 | -17.1% | 0 | 252 |
| 1997 | CA$3,188,977 | CA$4,251,969 | CA$2,125,984 | CA$2,217,098 | -30.5% | 0 | 252 |
| 1996 | CA$3,948,257 | CA$4,251,969 | CA$2,809,336 | CA$3,188,977 | n/a | 0 | 72 |
CSCI monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | CA$8.60 | +17.8% |
| August 2026 | CA$7.30 | +2.8% |
| July 2026 | CA$7.10 | -75.7% |
| June 2026 | CA$29.16 | +20.4% |
| May 2026 | CA$24.21 | 0.0% |
| April 2026 | CA$24.21 | +122.3% |
| March 2026 | CA$10.89 | -50.4% |
| February 2026 | CA$21.96 | -13.5% |
| January 2026 | CA$25.38 | -0.7% |
| December 2025 | CA$25.56 | -5.6% |
| November 2025 | CA$27.09 | -13.8% |
| October 2025 | CA$31.41 | -4.1% |
About the CSCI data
Daily bars. 7,543 sessions from Sep 18, 1996 to Sep 25, 2026, one row per TSX 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 18, 2026 forward, most recent session Sep 25, 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 TSX trading days; minute timestamps are UTC. Prices are in CAD. 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 Sep 18, 1996, 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/CSCI/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on TSX
Common questions
CSCI share price history
