Kiniksa Pharmaceuticals International Stock Price History
NASDAQ: KNSAHealth CareBiotechnology: Pharmaceutical PreparationsUSD
79.78+1.03 (+1.31%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
KNSA price history at a glance
The price history for Kiniksa Pharmaceuticals International (KNSA) on this page begins on May 21, 2018, when the stock closed at $19.41; it most recently closed at $79.78 on October 5, 2026. The highest price in this record is $82.94, reached on July 27, 2026; the latest close is 3.8% below that peak. Across the 7 complete calendar years in the table, KNSA finished higher in 5 and lower in 2. Its best year was 2025 (+106.8%) and its worst was 2019 (-52.8%).
Over roughly 8 years the share price changed +311.0%, a 18.4% compound annual price return (excluding dividends). In the last 12 months alone, KNSA has gained 109.3%. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.
Summary generated from market data by MetaCap's automated system. Methodology
Key price levels
- High since 2018
- $82.94
- Date of high
- Jul 27, 2026
- Low since 2018
- $5.01
- Date of low
- Oct 14, 2019
- 52-week high
- $82.94
- 52-week low
- $35.20
- IPO year
- 2018
- Last close
- $79.78
KNSA returns
1 week
+5.26%
1 month
+1.60%
3 months
+25.76%
6 months
+69.46%
Year to date
+93.41%
1 year
+109.34%
3 years
+389.15%
5 years
+596.77%
KNSA price return, excluding dividends.
KNSA annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 79.78 | +89.93% |
| 2025 | 42.01 | +106.82% |
| 2024 | 20.31 | +15.79% |
| 2023 | 17.54 | +17.09% |
| 2022 | 14.98 | +27.27% |
| 2021 | 11.77 | -33.39% |
| 2020 | 17.67 | +44.24% |
| 2019 | 12.25 | -52.79% |
| 2018* | 25.95 | +33.69% |
* Partial year: the record begins after the start of 2018; return measured from the first available close.
2026 return is year to date.
KNSA daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 78.24 | 80.50 | 78.23 | 79.78 | +1.31% | |
| 77.18 | 78.83 | 75.54 | 78.75 | +1.01% | |
| 76.18 | 79.22 | 74.70 | 77.96 | +1.13% | |
| 76.00 | 77.32 | 73.84 | 77.09 | +1.02% | |
| 75.97 | 76.79 | 75.29 | 76.31 | +0.69% | |
| 75.58 | 76.22 | 74.56 | 75.79 | +0.76% | |
| 73.87 | 76.11 | 73.14 | 75.22 | +0.82% | |
| 76.55 | 76.55 | 73.76 | 74.61 | -1.48% | |
| 75.32 | 76.52 | 74.33 | 75.73 | -0.49% | |
| 75.00 | 76.42 | 74.02 | 76.10 | +1.36% | |
| 75.40 | 76.00 | 74.53 | 75.08 | -0.35% | |
| 76.02 | 76.95 | 74.46 | 75.34 | -0.97% | |
| 77.99 | 78.23 | 74.88 | 76.08 | -2.46% | |
| 78.09 | 79.54 | 77.37 | 78.00 | -0.17% | |
| 77.12 | 78.73 | 75.90 | 78.13 | +1.15% | |
| 78.95 | 79.61 | 76.99 | 77.24 | -2.63% | |
| 78.66 | 79.76 | 78.29 | 79.33 | +2.20% | |
| 75.06 | 77.64 | 74.91 | 77.62 | +3.29% | |
| 76.46 | 76.63 | 74.47 | 75.15 | -1.87% | |
| 77.89 | 77.89 | 75.02 | 76.58 | +0.41% | |
| 77.70 | 78.59 | 76.14 | 76.27 | -0.27% | |
| 77.66 | 78.42 | 75.99 | 76.48 | -2.60% | |
| 78.72 | 80.22 | 77.33 | 78.52 | +1.85% | |
| 76.25 | 78.50 | 75.00 | 77.09 | -1.05% | |
| 79.75 | 80.43 | 77.90 | 77.91 | -3.18% | |
| 80.30 | 81.41 | 78.84 | 80.47 | +0.73% | |
| 79.53 | 80.18 | 77.87 | 79.89 | +0.77% | |
| 78.29 | 79.55 | 77.86 | 79.28 | +0.83% | |
| 78.00 | 78.96 | 76.65 | 78.63 | +0.70% | |
| 79.60 | 79.81 | 77.71 | 78.08 | -2.16% | |
| 78.20 | 80.79 | 77.80 | 79.80 | +1.42% | |
| 79.65 | 80.26 | 78.35 | 78.68 | -1.90% | |
| 79.36 | 80.86 | 79.13 | 80.20 | +1.03% | |
| 79.50 | 79.98 | 77.71 | 79.38 | +0.44% | |
| 78.28 | 79.93 | 78.01 | 79.03 | +0.71% | |
| 79.43 | 80.12 | 77.64 | 78.47 | -2.88% | |
| 80.50 | 81.57 | 79.27 | 80.80 | +1.65% | |
| 78.85 | 79.86 | 78.77 | 79.49 | +0.39% | |
| 76.89 | 79.22 | 76.75 | 79.18 | +3.17% | |
| 77.32 | 77.51 | 75.30 | 76.75 | -1.39% | |
| 78.65 | 79.69 | 77.20 | 77.83 | -0.41% | |
| 77.37 | 79.79 | 76.92 | 78.15 | +0.45% | |
| 76.67 | 78.25 | 75.73 | 77.80 | +1.66% | |
| 76.05 | 77.78 | 75.00 | 76.53 | +0.62% | |
| 77.66 | 77.82 | 75.52 | 76.06 | -0.59% | |
| 77.88 | 78.80 | 75.74 | 76.51 | -2.01% | |
| 76.91 | 78.24 | 76.12 | 78.08 | +2.75% | |
| 75.14 | 76.91 | 73.04 | 75.99 | +3.51% | |
| 73.89 | 75.44 | 71.42 | 73.41 | -1.25% | |
| 77.66 | 78.04 | 73.65 | 74.34 | -4.94% | |
| 79.40 | 80.51 | 77.74 | 78.20 | -3.36% | |
| 81.43 | 82.94 | 77.57 | 80.92 | +1.86% | |
| 70.06 | 81.97 | 67.35 | 79.44 | +25.03% | |
| 62.96 | 64.85 | 62.79 | 63.54 | +1.11% | |
| 63.35 | 63.39 | 62.31 | 62.84 | -0.33% | |
| 62.36 | 63.29 | 61.81 | 63.05 | +0.98% | |
| 63.23 | 63.82 | 61.60 | 62.44 | -1.75% | |
| 62.48 | 63.87 | 62.48 | 63.55 | +1.55% | |
| 63.60 | 65.00 | 62.13 | 62.58 | -2.14% | |
| 60.09 | 64.63 | 60.07 | 63.95 | +4.65% | |
| 61.50 | 61.71 | 60.26 | 61.11 | -0.94% | |
| 61.29 | 62.20 | 60.54 | 61.69 | -0.47% | |
| 60.94 | 62.76 | 60.13 | 61.98 | +1.71% | |
| 63.43 | 63.64 | 60.89 | 60.94 | -3.94% | |
| 65.16 | 65.71 | 62.60 | 63.44 | -2.97% | |
| 64.76 | 66.16 | 63.71 | 65.38 | +0.96% | |
| 67.22 | 67.50 | 63.26 | 64.76 | -3.76% | |
| 63.30 | 67.53 | 63.03 | 67.29 | +7.20% | |
| 64.43 | 65.16 | 62.73 | 62.77 | -2.73% | |
| 62.86 | 64.57 | 62.04 | 64.53 | +2.62% | |
| 63.64 | 64.09 | 62.56 | 62.89 | -1.67% | |
| 62.41 | 64.81 | 61.60 | 63.95 | +2.47% | |
| 60.35 | 63.77 | 59.12 | 62.41 | +5.42% | |
| 57.42 | 59.77 | 56.56 | 59.20 | +4.06% | |
| 58.84 | 59.73 | 56.86 | 56.89 | -3.79% | |
| 59.41 | 61.12 | 58.54 | 59.13 | -0.61% | |
| 57.00 | 59.94 | 56.50 | 59.49 | +4.13% | |
| 55.69 | 57.81 | 55.69 | 57.13 | +3.67% | |
| 55.00 | 55.99 | 54.33 | 55.11 | +1.66% | |
| 52.68 | 54.24 | 52.68 | 54.21 | +3.65% | |
| 52.20 | 52.44 | 51.08 | 52.30 | -0.08% | |
| 51.75 | 53.28 | 51.70 | 52.34 | +0.87% | |
| 51.66 | 52.48 | 51.36 | 51.89 | +0.60% | |
| 49.20 | 51.64 | 48.71 | 51.58 | +4.69% | |
| 48.64 | 50.09 | 48.51 | 49.27 | +1.17% | |
| 49.68 | 50.72 | 48.49 | 48.70 | -0.69% | |
| 48.80 | 49.40 | 47.95 | 49.04 | +1.28% | |
| 48.98 | 49.99 | 48.21 | 48.42 | -1.65% | |
| 47.98 | 50.48 | 47.43 | 49.23 | +2.88% | |
| 47.41 | 48.44 | 47.24 | 47.85 | +1.98% | |
| 47.79 | 47.89 | 46.10 | 46.92 | -3.12% | |
| 47.84 | 48.94 | 46.63 | 48.43 | +0.10% | |
| 50.72 | 50.80 | 48.06 | 48.38 | -4.84% | |
| 52.00 | 52.01 | 50.72 | 50.84 | -1.93% | |
| 52.71 | 53.37 | 51.50 | 51.84 | -1.93% | |
| 53.24 | 53.63 | 52.26 | 52.86 | -0.71% | |
| 53.48 | 55.08 | 53.02 | 53.24 | -0.76% | |
| 53.59 | 55.33 | 53.16 | 53.65 | -1.16% | |
| 53.59 | 54.51 | 52.31 | 54.28 | +1.76% | |
| 53.50 | 54.28 | 52.93 | 53.34 | -0.56% | |
| 56.95 | 57.01 | 53.31 | 53.64 | -5.08% | |
| 58.00 | 58.56 | 56.22 | 56.51 | -3.47% | |
| 59.38 | 59.72 | 57.99 | 58.54 | -0.98% | |
| 59.39 | 59.87 | 58.52 | 59.12 | -0.61% | |
| 58.69 | 59.87 | 58.14 | 59.48 | +1.90% | |
| 58.98 | 59.75 | 57.36 | 58.37 | -0.39% | |
| 57.06 | 58.85 | 56.83 | 58.60 | +2.93% | |
| 57.62 | 57.62 | 55.76 | 56.93 | -2.23% | |
| 56.52 | 58.26 | 55.82 | 58.23 | +2.63% | |
| 57.42 | 58.20 | 56.09 | 56.74 | -1.53% | |
| 54.97 | 57.72 | 54.45 | 57.62 | +4.25% | |
| 53.78 | 55.28 | 52.77 | 55.27 | +2.77% | |
| 53.57 | 54.07 | 52.55 | 53.78 | +1.49% | |
| 53.91 | 54.31 | 52.29 | 52.99 | -1.60% | |
| 47.20 | 54.23 | 45.01 | 53.85 | +23.48% | |
| 42.67 | 44.23 | 42.61 | 43.61 | +1.92% | |
| 43.00 | 43.00 | 41.95 | 42.79 | -0.60% | |
| 43.30 | 43.84 | 42.51 | 43.05 | +0.02% | |
| 42.84 | 43.69 | 42.67 | 43.04 | +1.39% | |
| 42.46 | 43.46 | 41.49 | 42.45 | -0.02% | |
| 44.77 | 44.86 | 42.46 | 42.46 | -5.43% | |
| 45.40 | 45.91 | 44.74 | 44.90 | -0.93% | |
| 46.44 | 46.62 | 44.90 | 45.32 | -1.24% | |
| 47.00 | 47.56 | 45.21 | 45.89 | -2.20% | |
| 47.13 | 47.78 | 45.60 | 46.92 | -0.80% | |
| 47.35 | 48.46 | 46.60 | 47.30 | +0.47% | |
| 47.21 | 47.74 | 46.78 | 47.08 | -0.53% | |
| 46.69 | 47.55 | 44.40 | 47.33 | +0.64% | |
| 49.23 | 49.87 | 46.46 | 47.03 | -3.90% | |
| 49.60 | 50.01 | 48.67 | 48.94 | -1.23% | |
| 48.58 | 50.03 | 48.58 | 49.55 | +1.50% | |
| 47.75 | 48.85 | 46.82 | 48.82 | +1.43% | |
| 48.87 | 49.33 | 47.71 | 48.13 | -0.04% | |
| 46.66 | 48.56 | 45.99 | 48.15 | +5.36% | |
| 45.59 | 45.95 | 44.76 | 45.70 | -0.11% | |
| 46.60 | 46.91 | 45.44 | 45.75 | -2.20% | |
| 45.75 | 47.13 | 45.24 | 46.78 | +2.05% | |
| 45.00 | 46.70 | 45.00 | 45.84 | +2.00% | |
| 45.75 | 45.75 | 44.43 | 44.94 | -2.39% | |
| 46.36 | 47.17 | 45.71 | 46.04 | -0.09% | |
| 45.64 | 46.34 | 44.62 | 46.08 | +0.99% | |
| 45.21 | 45.93 | 44.36 | 45.63 | +1.06% | |
| 47.02 | 47.02 | 45.04 | 45.15 | -3.98% | |
| 46.73 | 47.10 | 46.41 | 47.02 | +1.12% | |
| 45.75 | 47.83 | 45.75 | 46.50 | +1.57% | |
| 46.49 | 46.54 | 45.30 | 45.78 | -0.63% | |
| 46.20 | 46.66 | 44.87 | 46.07 | -0.52% | |
| 46.92 | 47.00 | 45.66 | 46.31 | -1.51% | |
| 47.20 | 47.41 | 45.66 | 47.02 | +0.60% | |
| 45.87 | 46.86 | 44.45 | 46.74 | +1.26% | |
| 46.02 | 47.41 | 44.94 | 46.16 | +0.30% | |
| 46.68 | 46.72 | 44.83 | 46.02 | -2.64% | |
| 44.67 | 47.46 | 43.33 | 47.27 | +4.19% | |
| 45.83 | 46.25 | 44.94 | 45.37 | -1.37% | |
| 44.13 | 46.17 | 43.51 | 46.00 | +3.39% | |
| 43.86 | 44.56 | 43.03 | 44.49 | +2.30% | |
| 42.73 | 44.30 | 42.43 | 43.49 | +1.71% | |
| 43.50 | 43.50 | 41.70 | 42.76 | -1.70% | |
| 42.75 | 46.33 | 41.12 | 43.50 | -8.21% | |
| 47.78 | 49.12 | 47.28 | 47.39 | -0.80% | |
| 47.46 | 47.86 | 46.75 | 47.77 | +1.27% | |
| 46.25 | 47.51 | 45.50 | 47.17 | +3.92% | |
| 45.36 | 45.81 | 44.89 | 45.39 | +0.02% | |
| 44.97 | 45.58 | 43.55 | 45.38 | +0.02% | |
| 44.74 | 46.65 | 44.30 | 45.37 | +1.48% | |
| 45.00 | 45.50 | 43.50 | 44.71 | -0.60% | |
| 44.44 | 44.98 | 43.11 | 44.98 | +0.60% | |
| 44.22 | 45.01 | 43.95 | 44.71 | +0.81% | |
| 43.15 | 44.43 | 42.00 | 44.35 | +2.92% | |
| 42.77 | 43.74 | 42.69 | 43.09 | +1.20% | |
| 43.41 | 44.34 | 41.98 | 42.58 | -2.16% | |
| 44.97 | 45.09 | 43.09 | 43.52 | -3.20% | |
| 44.37 | 45.50 | 44.26 | 44.96 | +0.65% | |
| 43.65 | 45.02 | 43.65 | 44.67 | +1.71% | |
| 44.02 | 44.56 | 43.18 | 43.92 | -0.09% | |
| 43.34 | 44.16 | 43.15 | 43.96 | +1.57% | |
| 45.00 | 45.00 | 42.99 | 43.28 | -3.05% | |
| 43.26 | 44.66 | 43.25 | 44.64 | +3.33% | |
| 42.09 | 43.40 | 41.50 | 43.20 | +2.37% | |
| 42.39 | 43.00 | 41.65 | 42.20 | -0.57% | |
| 41.83 | 42.75 | 41.22 | 42.44 | +1.46% | |
| 40.57 | 42.13 | 40.43 | 41.83 | +1.95% | |
| 38.79 | 41.04 | 38.40 | 41.03 | +4.11% | |
| 38.11 | 39.47 | 38.04 | 39.41 | +3.93% | |
| 39.56 | 39.74 | 37.02 | 37.92 | -4.15% | |
| 38.44 | 39.69 | 37.56 | 39.56 | +2.49% | |
| 41.55 | 42.39 | 38.20 | 38.60 | -6.13% | |
| 42.59 | 43.00 | 41.01 | 41.12 | -3.63% | |
| 42.23 | 42.69 | 41.31 | 42.67 | +2.25% | |
| 42.24 | 42.36 | 41.33 | 41.73 | -1.63% | |
| 42.93 | 43.26 | 41.56 | 42.42 | -0.61% | |
| 41.07 | 43.55 | 40.99 | 42.68 | +3.95% | |
| 41.82 | 41.91 | 39.16 | 41.06 | -2.25% | |
| 41.26 | 42.90 | 40.95 | 42.01 | +1.83% | |
| 40.90 | 41.38 | 40.57 | 41.25 | +0.63% | |
| 40.89 | 42.15 | 40.52 | 40.99 | -0.01% | |
| 41.87 | 41.87 | 40.90 | 41.00 | -2.39% | |
| 42.48 | 42.58 | 41.65 | 42.00 | -1.15% | |
| 42.68 | 42.99 | 42.29 | 42.49 | -0.07% | |
| 43.54 | 43.66 | 42.34 | 42.52 | -2.30% | |
| 43.00 | 44.42 | 42.46 | 43.52 | +0.76% | |
| 42.25 | 43.73 | 42.02 | 43.19 | +2.83% | |
| 41.41 | 42.47 | 40.77 | 42.00 | +1.28% | |
| 41.37 | 42.00 | 41.21 | 41.47 | +0.24% | |
| 41.38 | 42.00 | 41.05 | 41.37 | -0.43% | |
| 41.65 | 41.99 | 41.18 | 41.55 | -0.10% | |
| 41.06 | 41.99 | 40.33 | 41.59 | +1.41% | |
| 40.64 | 41.75 | 40.34 | 41.01 | +1.15% | |
| 41.14 | 41.60 | 40.05 | 40.55 | -1.45% | |
| 41.35 | 42.32 | 41.00 | 41.14 | -0.99% | |
| 42.08 | 42.12 | 41.00 | 41.55 | -0.29% | |
| 41.12 | 42.00 | 40.31 | 41.67 | +1.66% | |
| 40.35 | 41.48 | 39.79 | 40.99 | +0.99% | |
| 40.32 | 41.55 | 39.61 | 40.59 | +1.30% | |
| 40.85 | 41.67 | 40.04 | 40.07 | -2.10% | |
| 42.33 | 42.53 | 40.69 | 40.93 | -3.74% | |
| 42.50 | 42.89 | 42.02 | 42.52 | -0.05% | |
| 42.95 | 42.98 | 42.01 | 42.54 | -0.40% | |
| 41.33 | 42.85 | 41.00 | 42.71 | +1.76% | |
| 41.74 | 42.36 | 40.76 | 41.97 | +0.94% | |
| 41.22 | 42.07 | 40.44 | 41.58 | +0.22% | |
| 42.34 | 42.93 | 41.39 | 41.49 | -1.59% | |
| 41.03 | 42.26 | 40.70 | 42.16 | +2.13% | |
| 41.13 | 42.30 | 40.52 | 41.28 | -0.29% | |
| 40.00 | 41.70 | 39.61 | 41.40 | +2.68% | |
| 40.03 | 41.19 | 40.00 | 40.32 | +0.07% | |
| 40.66 | 40.89 | 40.09 | 40.29 | -0.71% | |
| 40.50 | 41.27 | 40.04 | 40.58 | +0.02% | |
| 39.50 | 40.89 | 39.19 | 40.57 | +2.71% | |
| 39.71 | 39.82 | 38.57 | 39.50 | +2.95% | |
| 38.55 | 38.82 | 37.61 | 38.37 | -0.67% | |
| 38.85 | 39.37 | 38.52 | 38.63 | -1.30% | |
| 39.48 | 39.66 | 38.22 | 39.14 | +1.56% | |
| 37.80 | 39.28 | 37.47 | 38.54 | +2.86% | |
| 37.02 | 37.94 | 36.56 | 37.47 | +1.24% | |
| 37.43 | 37.68 | 36.78 | 37.01 | -0.75% | |
| 37.59 | 38.28 | 37.08 | 37.29 | -0.24% | |
| 39.29 | 39.43 | 36.77 | 37.38 | -5.20% | |
| 41.37 | 42.05 | 35.20 | 39.43 | -2.88% | |
| 39.79 | 40.89 | 39.63 | 40.60 | +4.29% | |
| 39.03 | 39.60 | 38.72 | 38.93 | +0.41% | |
| 38.87 | 38.93 | 38.02 | 38.77 | -0.33% | |
| 39.69 | 39.79 | 38.46 | 38.90 | +0.13% | |
| 38.99 | 39.45 | 38.47 | 38.85 | -0.36% | |
| 38.59 | 39.57 | 38.11 | 38.99 | +0.91% | |
| 38.90 | 39.14 | 37.85 | 38.64 | -0.72% | |
| 39.00 | 39.39 | 38.49 | 38.92 | +0.15% | |
| 37.82 | 39.20 | 37.82 | 38.86 | +2.56% | |
| 36.87 | 38.04 | 36.80 | 37.89 | +2.32% | |
| 38.21 | 38.29 | 37.00 | 37.03 | -2.27% | |
| 38.11 | 38.48 | 37.09 | 37.89 | -0.58% | |
| 38.49 | 39.43 | 38.06 | 38.11 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the KNSA chart for longer ranges.