Nasdaq · KNSA · stock
Kiniksa Pharmaceuticals International, plc (KNSA) stock price history
Every Nasdaq trading session of Kiniksa Pharmaceuticals International, plc from May 25, 2018 to Sep 28, 2026: 2,096 daily bars, adjusted for splits and dividends, with minute bars from Jul 13, 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.
KNSA adjusted close, 2018 to 2026
- $80.92
- All time high, 2026
- $82.94
- 52 week high, $35.20 low
- 2,096
- Daily sessions since 2018
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2018 to 2026 series and minute bars.
KNSA key facts
- Kiniksa Pharmaceuticals International, plc (KNSA) closed at $76.10 on Sep 28, 2026 on Nasdaq.
- KNSA's all time high close is $80.92, set on Jul 29, 2026; its all time low close is $5.24 on Oct 18, 2019.
- KNSA's 52 week range is $35.20 to $82.94.
- KNSA returned +108.6% over the year to Sep 28, 2026 and +552.7% over five years.
- Since May 25, 2018 KNSA returned +292%, +17.8% a year compounded.
- KNSA's deepest drawdown was -83.1% from Sep 20, 2018 to Oct 18, 2019.
- DataCedar holds 2,096 daily sessions of KNSA history from May 25, 2018 and minute bars from Jul 13, 2026, adjusted for splits and dividends, served by the API under a key.
KNSA price chart, 2018 to 2026
KNSA returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -2.5% |
| 3 months | +28.5% |
| 6 months | +66.3% |
| Year to date | +85.7% |
| 1 year | +108.6% |
| 3 years | +336.9% |
| 5 years | +552.7% |
| 10 years | n/a |
| Since May 25, 2018 | +292.1% |
| Compound annual growth, 8.3 years | +17.8% |
KNSA records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- $80.92 on Jul 29, 2026
- All time low close
- $5.24 on Oct 18, 2019
- 52 week high
- $82.94 on Jul 29, 2026
- 52 week low
- $35.20 on Oct 28, 2025
- Deepest drawdown
- -83.1% from Sep 20, 2018 to Oct 18, 2019, recovered Aug 1, 2025
- Best single session
- +30.4% on Jul 25, 2023
- Worst single session
- -24.4% on Mar 16, 2020
- Volatility, 1 year annualised
- 47.5%
- Sessions closing higher, 1 year
- 52%
- Growth of 1 since 2018
- 3.9×
- Best calendar year
- 2025, +109%
- Worst calendar year
- 2019, -61%
KNSA 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. 2018 starts on May 25, 2018; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | $41.26 | $82.94 | $37.02 | $76.10 | +84.5% | 126.9M | 185 |
| 2025 | $20.00 | $44.42 | $17.82 | $41.25 | +108.5% | 148.1M | 250 |
| 2024 | $17.61 | $28.15 | $16.56 | $19.78 | +12.8% | 100.6M | 252 |
| 2023 | $15.11 | $20.65 | $10.29 | $17.54 | +17.1% | 106.8M | 250 |
| 2022 | $11.82 | $17.19 | $7.36 | $14.98 | +27.3% | 84.5M | 251 |
| 2021 | $17.67 | $24.70 | $10.30 | $11.77 | -33.4% | 111.9M | 252 |
| 2020 | $11.11 | $28.67 | $10.30 | $17.67 | +59.8% | 86.5M | 253 |
| 2019 | $27.53 | $28.43 | $5.01 | $11.06 | -60.6% | 37.1M | 252 |
| 2018 | $19.21 | $32.88 | $13.04 | $28.09 | n/a | 16.6M | 151 |
KNSA monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | $76.10 | -3.2% |
| August 2026 | $78.63 | +5.8% |
| July 2026 | $74.34 | +16.2% |
| June 2026 | $63.95 | +32.2% |
| May 2026 | $48.38 | -10.0% |
| April 2026 | $53.78 | +11.7% |
| March 2026 | $48.15 | +8.2% |
| February 2026 | $44.49 | +1.3% |
| January 2026 | $43.92 | +6.5% |
| December 2025 | $41.25 | -3.0% |
| November 2025 | $42.52 | +14.9% |
| October 2025 | $37.01 | -4.7% |
About the KNSA data
Daily bars. 2,096 sessions from May 25, 2018 to Sep 28, 2026, one row per Nasdaq 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 Jul 13, 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 Nasdaq trading days; minute timestamps are UTC. Prices are in USD. 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 May 25, 2018, 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/KNSA/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Nasdaq
Common questions
KNSA share price history
