Kiniksa Pharmaceuticals International, plc (KNSA) Stock Price History
Historical prices from 2018 to 2026
- 1M
- -5.1%
- 3M
- +17.4%
- YTD
- +80.4%
- 1Y
- +102.3%
- 3Y
- +64.9%
- 5Y
- +47.4%
Loading 10-year price history...
KNSA Historical Performance
KNSA Annual Returns
Year-by-year price performance · 2018–2026
- 2018 annual price return
- +44.3%
- 2019 annual price return
- -58.4%
- 2020 annual price return
- +57.9%
- 2021 annual price return
- -31.0%
- 2022 annual price return
- +21.1%
- 2023 annual price return
- +21.5%
- 2024 annual price return
- +6.7%
- 2025 annual price return
- +106.9%
- 2026 annual price return
- +77.0%
KNSA Stock Price Trajectory (2018–2026)
As of October 3, 2026, Kiniksa Pharmaceuticals International, plc (KNSA) trades at $75.79, representing a +102.3% return over the past year. The stock has delivered a +594.7% total return over five years (+47.4% CAGR), reflecting significant long-term value creation.
The stock reached its all-time high of $82.94 on July 29, 2026. From this peak, KNSA has corrected -8.6%, currently trading 35% above its 200-day moving average, indicating continued institutional support.
When compared to Healthcare sector peers ARDX (-36.4% 1Y), PRAX (+435.4% 1Y), and RCUS (+82.8% 1Y), KNSA has underperformed the peer group average. Compare KNSA vs ARDX →
KNSA Historical Price Data · from 2018
Rows 1–50 of 2,101| Date | Open | High | Low | Close | Volume | Change % |
|---|---|---|---|---|---|---|
| 2026-10-02 | 75.58 | 76.22 | 74.98 | 75.79 | 376K | +0.76% |
| 2026-10-01 | 73.87 | 76.11 | 73.42 | 75.22 | 701K | +0.82% |
| 2026-09-30 | 76.55 | 76.55 | 73.77 | 74.61 | 651K | -1.48% |
| 2026-09-29 | 75.86 | 76.17 | 74.33 | 75.73 | 286K | -0.49% |
| 2026-09-28 | 75.00 | 76.42 | 74.38 | 76.10 | 548K | +1.36% |
| 2026-09-25 | 75.40 | 75.99 | 74.53 | 75.08 | 308K | -0.35% |
| 2026-09-24 | 76.02 | 76.95 | 74.46 | 75.34 | 433K | -0.97% |
| 2026-09-23 | 77.99 | 78.23 | 74.88 | 76.08 | 405K | -2.46% |
| 2026-09-22 | 78.11 | 79.40 | 77.37 | 78.00 | 404K | -0.17% |
| 2026-09-21 | 77.98 | 78.71 | 77.63 | 78.13 | 452K | +1.15% |
| 2026-09-18 | 78.95 | 79.36 | 77.00 | 77.24 | 1.01M | -2.63% |
| 2026-09-17 | 78.75 | 79.69 | 77.94 | 79.33 | 471K | +2.20% |
| 2026-09-16 | 75.06 | 77.64 | 74.94 | 77.62 | 553K | +3.29% |
| 2026-09-15 | 76.46 | 76.63 | 74.47 | 75.15 | 447K | -1.87% |
| 2026-09-14 | 77.89 | 77.89 | 75.02 | 76.58 | 447K | +0.41% |
| 2026-09-11 | 77.70 | 78.59 | 76.14 | 76.27 | 358K | -0.27% |
| 2026-09-10 | 77.66 | 78.42 | 75.99 | 76.48 | 459K | -2.60% |
| 2026-09-09 | 77.75 | 80.13 | 77.75 | 78.52 | 588K | +1.85% |
| 2026-09-08 | 76.35 | 78.45 | 75.55 | 77.09 | 668K | -1.05% |
| 2026-09-04 | 79.77 | 80.43 | 77.90 | 77.91 | 429K | -3.18% |
| 2026-09-03 | 80.31 | 81.41 | 78.84 | 80.47 | 621K | +0.73% |
| 2026-09-02 | 79.53 | 80.18 | 77.87 | 79.89 | 568K | +0.77% |
| 2026-09-01 | 78.29 | 79.55 | 77.86 | 79.28 | 387K | +0.83% |
| 2026-08-31 | 79.94 | 79.94 | 76.65 | 78.63 | 420K | +0.70% |
| 2026-08-28 | 79.60 | 79.81 | 77.71 | 78.08 | 427K | -2.16% |
| 2026-08-27 | 78.20 | 80.77 | 77.80 | 79.80 | 413K | +1.42% |
| 2026-08-26 | 79.65 | 80.26 | 78.34 | 78.68 | 384K | -1.90% |
| 2026-08-25 | 79.36 | 80.86 | 79.22 | 80.20 | 402K | +1.03% |
| 2026-08-24 | 79.50 | 79.98 | 77.71 | 79.38 | 419K | +0.44% |
| 2026-08-21 | 78.28 | 79.93 | 78.01 | 79.03 | 270K | +0.71% |
| 2026-08-20 | 79.43 | 80.12 | 77.64 | 78.47 | 547K | -2.88% |
| 2026-08-19 | 80.50 | 81.57 | 79.27 | 80.80 | 872K | +1.65% |
| 2026-08-18 | 78.85 | 79.86 | 78.77 | 79.49 | 367K | +0.39% |
| 2026-08-17 | 76.89 | 79.22 | 76.75 | 79.18 | 329K | +3.17% |
| 2026-08-14 | 77.32 | 77.51 | 75.30 | 76.75 | 404K | -1.39% |
| 2026-08-13 | 78.65 | 79.69 | 77.19 | 77.83 | 451K | -0.41% |
| 2026-08-12 | 77.37 | 79.79 | 76.92 | 78.15 | 528K | +0.45% |
| 2026-08-11 | 76.67 | 78.25 | 75.72 | 77.80 | 351K | +1.66% |
| 2026-08-10 | 76.05 | 77.78 | 75.00 | 76.53 | 265K | +0.62% |
| 2026-08-07 | 77.66 | 77.82 | 75.52 | 76.06 | 220K | -0.59% |
| 2026-08-06 | 77.88 | 78.80 | 75.74 | 76.51 | 353K | -2.01% |
| 2026-08-05 | 76.91 | 78.24 | 76.12 | 78.08 | 531K | +2.75% |
| 2026-08-04 | 75.14 | 76.91 | 73.04 | 75.99 | 662K | +3.51% |
| 2026-08-03 | 73.89 | 75.44 | 71.42 | 73.41 | 785K | -1.25% |
| 2026-07-31 | 77.66 | 78.04 | 73.65 | 74.34 | 1.03M | -4.94% |
| 2026-07-30 | 79.40 | 80.51 | 77.74 | 78.20 | 948K | -3.36% |
| 2026-07-29 | 81.43 | 82.94 | 77.57 | 80.92 | 1.38M | +1.86% |
| 2026-07-28 | 70.06 | 81.97 | 67.35 | 79.44 | 2.87M | +25.02% |
| 2026-07-27 | 62.96 | 64.85 | 62.79 | 63.54 | 835K | +1.11% |
| 2026-07-24 | 63.35 | 63.39 | 62.31 | 62.84 | 620K | -0.33% |
KNSA Chart Terminal
Live VCP patterns, Cup & Handle overlays, support/resistance, and AI trade plans.
Live Breakouts Feed
High-probability breakout stocks crossing their pivot across 5 pattern engines.
Intrinsic Valuation
DCF models, multiple analysis, and analyst estimates.
Historical Returns
10-year return with dividends reinvested.
Peer Comparison
Compare growth, multiples, and margins vs sector.
KNSA — Frequently Asked Questions
Quick answers to the most common questions about buying KNSA stock.
How has KNSA stock performed recently?
KNSA returned +102.3% over the past year, beating its 5-year annualized CAGR of +47.4%. The stock trades above its 200-day moving average, confirming the uptrend.
What is KNSA's all-time high price?
Kiniksa Pharmaceuticals International, plc reached $82.94 on 2026-07-29. The 52-week high is $82.94. Current 1-year return of +102.3% 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.