Kiniksa Pharmaceuticals, Ltd. (KNSA) Stock Price History
Historical prices from 2018 to 2026
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Historical Performance
Short-Term Returns
KNSA Stock Price Trajectory (2018–2026)
As of February 28, 2026, Kiniksa Pharmaceuticals, Ltd. (KNSA) trades at $44.49, representing a +119.4% return over the past year. The stock has delivered a +15.2% return over five years, reflecting significant long-term value creation.
The stock reached its all-time high of $49.12 on February 23, 2026. From this peak, KNSA has corrected -9.4%, currently trading 22% above its 200-day moving average, indicating continued institutional support.
When compared to Healthcare sector peers ARGX (+22.8% 1Y), CANF (+169.9% 1Y), and AKTX (-72.9% 1Y), KNSA has underperformed the peer group average. Compare KNSA vs ARGX →
Historical Price Data
Showing 30 of 1,952 records| Date | Open | High | Low | Close | Volume | Change % |
|---|---|---|---|---|---|---|
| 2026-02-27 | 43.86 | 44.56 | 43.04 | 44.49 | 44 | +2.30% |
| 2026-02-26 | 42.59 | 44.01 | 42.42 | 43.49 | 43 | +1.71% |
| 2026-02-25 | 43.50 | 43.50 | 41.70 | 42.76 | 42 | -1.70% |
| 2026-02-24 | 42.75 | 46.33 | 41.50 | 43.50 | 43 | -8.21% |
| 2026-02-23 | 47.78 | 49.12 | 47.27 | 47.39 | 47 | -0.80% |
| 2026-02-20 | 47.46 | 47.85 | 46.75 | 47.77 | 47 | +1.27% |
| 2026-02-19 | 46.25 | 47.51 | 45.49 | 47.17 | 574K | +3.92% |
| 2026-02-18 | 45.36 | 45.81 | 44.89 | 45.39 | 251K | +0.23% |
| 2026-02-17 | 44.97 | 45.35 | 44.90 | 45.28 | 19K | -0.19% |
| 2026-02-13 | 44.74 | 46.65 | 44.30 | 45.37 | 511K | +1.48% |
| 2026-02-12 | 45.00 | 45.50 | 43.50 | 44.71 | 312K | -0.60% |
| 2026-02-11 | 44.44 | 44.98 | 43.11 | 44.98 | 351K | +0.60% |
| 2026-02-10 | 44.22 | 45.01 | 43.95 | 44.71 | 387K | +0.81% |
| 2026-02-09 | 43.15 | 44.43 | 42.00 | 44.35 | 404K | +2.92% |
| 2026-02-06 | 42.77 | 43.74 | 42.69 | 43.09 | 313K | +1.20% |
| 2026-02-05 | 43.41 | 44.34 | 41.98 | 42.58 | 334K | -2.16% |
| 2026-02-04 | 44.97 | 45.09 | 43.09 | 43.52 | 524K | -3.20% |
| 2026-02-03 | 44.37 | 45.50 | 44.26 | 44.96 | 436K | +0.65% |
| 2026-02-02 | 43.65 | 45.02 | 43.65 | 44.67 | 383K | +1.71% |
| 2026-01-30 | 44.02 | 44.56 | 43.18 | 43.92 | 987K | -0.09% |
| 2026-01-29 | 43.34 | 44.16 | 43.15 | 43.96 | 485K | +1.57% |
| 2026-01-28 | 45.00 | 45.00 | 42.98 | 43.28 | 714K | -3.05% |
| 2026-01-27 | 43.26 | 44.66 | 43.25 | 44.64 | 342K | +3.33% |
| 2026-01-26 | 42.09 | 43.40 | 41.50 | 43.20 | 735K | +2.37% |
| 2026-01-24 | 42.39 | 43.00 | 41.65 | 42.20 | 590K | 0.00% |
| 2026-01-23 | 42.39 | 43.00 | 41.65 | 42.20 | 598K | -0.57% |
| 2026-01-22 | 41.83 | 42.75 | 41.22 | 42.44 | 904K | +1.46% |
| 2026-01-21 | 40.57 | 42.13 | 40.43 | 41.83 | 1.32M | +1.95% |
| 2026-01-20 | 38.79 | 41.04 | 38.40 | 41.03 | 517K | +4.11% |
| 2026-01-16 | 38.11 | 39.47 | 38.04 | 39.41 | 766K | +3.93% |
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Start ComparisonFrequently Asked Questions
How has KNSA stock performed recently?
KNSA returned +119.4% over the past year, beating its 5-year annualized CAGR of +15.2%. The stock trades above its 200-day moving average, confirming the uptrend.
What is KNSA's all-time high price?
Kiniksa Pharmaceuticals, Ltd. reached $49.12 on 2026-02-23. The 52-week high is $49.12. Current 1-year return of +119.4% places the stock closer to historical peaks.
Where can I download KNSA historical price data?
This page provides KNSA daily OHLCV data with 50-day MA, 200-day MA, and RSI indicators. Data spans 2018-2026, downloadable in CSV format.