Kiniksa Pharmaceuticals International, plc (KNSA) stock
KNSANasdaqPharmaceutical PreparationsFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Oct 27, 2026Score 14/30692% above fair value
$92.24−5.32 (-5.45%)
Close on Oct 30, 2026Market cap $14.39BP/E 95.1Yield –
Price history
Kiniksa Pharmaceuticals International share prices for every month, newest first. Adjusted for stock splits, not for dividends.
Close, Oct 30, 2026
$92.24
-5.45% on the day
52-week range
$36.56 – $98.48
-6.3% from the high
Change over 52 weeks
+147.4%
From $37.29 on Oct 30, 2025
Average volume
750,369
Shares a day, last 90 sessions
| Month | Open | High | Low | Close | Change | Volume |
|---|---|---|---|---|---|---|
| Oct 2026 | $73.87 | $98.48 | $70.67 | $92.24 | +23.63% | 18,598,058 |
| Sep 2026 | $78.29 | $81.41 | $73.76 | $74.61 | -5.11% | 12,004,975 |
| Aug 2026 | $73.89 | $81.57 | $71.42 | $78.63 | +5.77% | 9,409,050 |
| Jul 2026 | $63.64 | $82.94 | $60.07 | $74.34 | +16.25% | 17,193,851 |
| Jun 2026 | $47.84 | $64.81 | $46.10 | $63.95 | +32.18% | 20,312,055 |
| May 2026 | $53.78 | $59.87 | $48.06 | $48.38 | -10.04% | 11,376,380 |
| Apr 2026 | $48.87 | $54.31 | $41.49 | $53.78 | +11.69% | 18,038,747 |
| Mar 2026 | $44.13 | $48.56 | $43.33 | $48.15 | +8.23% | 14,851,375 |
| Feb 2026 | $43.65 | $49.12 | $41.12 | $44.49 | +1.30% | 10,416,674 |
| Jan 2026 | $41.26 | $45.00 | $37.02 | $43.92 | +6.47% | 14,724,846 |
| Dec 2025 | $42.33 | $44.42 | $39.61 | $41.25 | -2.99% | 8,569,289 |
| Nov 2025 | $37.02 | $42.98 | $36.56 | $42.52 | +14.89% | 6,718,431 |
| Oct 2025 | $38.89 | $42.05 | $35.20 | $37.01 | -4.69% | 11,983,050 |
| Sep 2025 | $33.93 | $39.00 | $33.45 | $38.83 | +15.95% | 9,241,142 |
| Aug 2025 | $30.19 | $34.55 | $30.04 | $33.49 | +10.67% | 11,422,277 |
| Jul 2025 | $27.55 | $31.92 | $26.27 | $30.26 | +9.36% | 14,440,975 |
| Jun 2025 | $27.54 | $30.69 | $26.54 | $27.67 | +1.13% | 23,206,879 |
| May 2025 | $26.78 | $28.56 | $24.85 | $27.36 | +1.45% | 11,183,028 |
| Apr 2025 | $22.08 | $27.53 | $18.26 | $26.97 | +21.43% | 15,626,496 |
| Mar 2025 | $20.47 | $24.31 | $20.39 | $22.21 | +9.52% | 14,039,354 |
| Feb 2025 | $19.58 | $20.73 | $18.12 | $20.28 | +3.47% | 10,931,330 |
| Jan 2025 | $20.00 | $20.90 | $17.82 | $19.60 | -0.91% | 11,339,831 |
| Dec 2024 | $22.08 | $22.31 | $19.47 | $19.78 | -10.42% | 7,511,424 |
| Nov 2024 | $22.83 | $23.52 | $20.41 | $22.08 | -2.26% | 6,010,814 |
| Oct 2024 | $24.80 | $28.15 | $20.26 | $22.59 | -9.60% | 7,121,880 |
| Sep 2024 | $26.54 | $27.25 | $23.16 | $24.99 | -6.54% | 9,858,148 |
| Aug 2024 | $26.62 | $27.92 | $23.34 | $26.74 | +0.53% | 7,154,306 |
| Jul 2024 | $18.47 | $27.88 | $17.38 | $26.60 | +42.47% | 13,861,716 |
| Jun 2024 | $19.16 | $19.84 | $17.73 | $18.67 | -1.79% | 8,480,039 |
| May 2024 | $18.81 | $20.52 | $18.33 | $19.01 | +1.55% | 6,894,450 |
| Apr 2024 | $19.64 | $19.73 | $16.56 | $18.72 | -5.12% | 8,514,779 |
| Mar 2024 | $21.35 | $22.09 | $19.15 | $19.73 | -6.67% | 8,528,435 |
| Feb 2024 | $17.69 | $21.98 | $17.52 | $21.14 | +19.91% | 6,688,215 |
| Jan 2024 | $17.61 | $20.36 | $17.57 | $17.63 | +0.51% | 10,009,579 |
| Dec 2023 | $16.04 | $19.15 | $16.04 | $17.54 | +8.47% | 10,408,255 |
| Nov 2023 | $15.36 | $16.75 | $14.12 | $16.17 | +6.03% | 9,208,762 |
| Oct 2023 | $17.37 | $17.64 | $14.56 | $15.25 | -12.20% | 7,161,389 |
| Sep 2023 | $17.37 | $18.00 | $16.16 | $17.37 | +0.81% | 5,514,237 |
| Aug 2023 | $18.95 | $19.17 | $16.21 | $17.23 | -8.55% | 9,514,774 |
| Jul 2023 | $14.23 | $20.65 | $13.56 | $18.84 | +33.81% | 15,188,198 |
| Jun 2023 | $13.86 | $16.82 | $13.76 | $14.08 | +1.59% | 9,101,052 |
| May 2023 | $10.76 | $14.52 | $10.65 | $13.86 | +28.93% | 10,368,380 |
| Apr 2023 | $10.85 | $12.03 | $10.29 | $10.75 | -0.09% | 6,094,700 |
| Mar 2023 | $12.87 | $13.30 | $10.39 | $10.76 | -16.33% | 10,810,031 |
| Feb 2023 | $14.43 | $14.83 | $12.58 | $12.86 | -11.07% | 6,757,893 |
| Jan 2023 | $15.11 | $16.40 | $13.62 | $14.46 | -3.47% | 6,649,361 |
| Dec 2022 | $16.78 | $17.20 | $14.59 | $14.98 | -10.99% | 7,758,604 |
| Nov 2022 | $12.77 | $16.93 | $12.00 | $16.83 | +47.37% | 9,126,664 |
| Oct 2022 | $12.92 | $14.50 | $11.20 | $11.42 | -11.06% | 7,544,119 |
| Sep 2022 | $11.59 | $13.04 | $10.14 | $12.84 | +9.56% | 5,549,971 |
| Aug 2022 | $9.76 | $13.75 | $9.63 | $11.72 | +18.26% | 9,580,276 |
| Jul 2022 | $9.69 | $11.87 | $9.69 | $9.91 | +2.27% | 5,112,678 |
| Jun 2022 | $8.08 | $10.96 | $7.36 | $9.69 | +26.50% | 6,548,464 |
| May 2022 | $9.25 | $10.40 | $7.56 | $7.66 | -17.90% | 5,869,955 |
| Apr 2022 | $9.97 | $11.49 | $9.24 | $9.33 | -6.14% | 4,683,699 |
| Mar 2022 | $10.24 | $11.28 | $9.05 | $9.94 | -2.93% | 9,015,257 |
| Feb 2022 | $11.23 | $11.86 | $9.50 | $10.24 | -8.82% | 5,500,188 |
| Jan 2022 | $11.82 | $12.40 | $9.96 | $11.23 | -4.59% | 8,161,804 |
| Dec 2021 | $11.74 | $14.22 | $11.00 | $11.77 | +1.29% | 11,490,296 |
| Nov 2021 | $10.99 | $15.25 | $10.59 | $11.62 | +11.84% | 8,803,977 |
| Oct 2021 | $11.63 | $11.86 | $10.30 | $10.39 | -8.78% | 4,854,394 |
| Sep 2021 | $12.69 | $13.24 | $11.31 | $11.39 | -9.46% | 7,397,287 |
| Aug 2021 | $15.51 | $16.68 | $11.52 | $12.58 | -17.94% | 12,775,135 |
| Jul 2021 | $13.98 | $16.34 | $13.09 | $15.33 | +10.05% | 9,039,814 |
| Jun 2021 | $13.60 | $15.44 | $13.02 | $13.93 | +2.20% | 11,141,913 |
| May 2021 | $16.70 | $16.77 | $13.00 | $13.63 | -17.19% | 6,421,171 |
| Apr 2021 | $18.81 | $19.24 | $15.12 | $16.46 | -11.08% | 9,025,520 |
| Mar 2021 | $21.29 | $24.22 | $15.72 | $18.51 | -10.01% | 18,855,382 |
| Feb 2021 | $20.30 | $24.70 | $19.61 | $20.57 | +4.47% | 6,758,674 |
| Jan 2021 | $17.67 | $21.65 | $16.65 | $19.69 | +11.43% | 5,534,005 |
| Dec 2020 | $18.80 | $20.49 | $16.69 | $17.67 | -5.31% | 8,189,813 |
| Nov 2020 | $15.85 | $19.40 | $14.55 | $18.66 | +19.16% | 7,920,593 |
| Oct 2020 | $15.25 | $21.24 | $14.60 | $15.66 | +2.22% | 10,747,400 |
| Sep 2020 | $17.67 | $17.95 | $14.51 | $15.32 | -13.30% | 7,986,054 |
| Aug 2020 | $19.53 | $20.49 | $15.90 | $17.67 | -9.48% | 6,457,948 |
| Jul 2020 | $25.62 | $26.14 | $19.02 | $19.52 | -23.39% | 9,454,065 |
| Jun 2020 | $20.81 | $28.67 | $19.81 | $25.48 | +22.09% | 6,800,400 |
| May 2020 | $19.58 | $22.77 | $18.52 | $20.87 | +4.61% | 5,613,235 |
| Apr 2020 | $15.46 | $22.32 | $14.52 | $19.95 | +28.88% | 6,975,854 |
| Mar 2020 | $18.38 | $20.00 | $10.30 | $15.48 | -16.14% | 7,000,207 |
| Feb 2020 | $14.85 | $19.57 | $14.77 | $18.46 | +25.49% | 3,666,135 |
| Jan 2020 | $11.11 | $15.98 | $10.92 | $14.71 | +33.00% | 5,677,845 |
| Dec 2019 | $10.63 | $14.60 | $9.33 | $11.06 | +3.85% | 6,025,531 |
| Nov 2019 | $7.09 | $11.14 | $6.28 | $10.65 | +51.06% | 4,565,142 |
| Oct 2019 | $8.48 | $8.71 | $5.01 | $7.05 | -17.16% | 5,169,380 |
| Sep 2019 | $8.83 | $10.48 | $8.00 | $8.51 | -3.62% | 1,891,328 |
| Aug 2019 | $11.80 | $12.25 | $8.76 | $8.83 | -25.17% | 1,512,155 |
| Jul 2019 | $13.88 | $16.98 | $10.76 | $11.80 | -12.85% | 2,123,228 |
| Jun 2019 | $15.23 | $16.05 | $13.05 | $13.54 | -11.21% | 2,552,979 |
| May 2019 | $14.81 | $16.97 | $14.00 | $15.25 | +2.14% | 1,442,993 |
| Apr 2019 | $18.21 | $21.50 | $14.56 | $14.93 | -17.33% | 1,744,076 |
| Mar 2019 | $17.98 | $18.59 | $15.15 | $18.06 | +0.61% | 2,615,892 |
| Feb 2019 | $17.11 | $19.40 | $16.50 | $17.95 | +2.57% | 3,161,757 |
| Jan 2019 | $27.53 | $28.43 | $16.70 | $17.50 | -37.70% | 4,367,695 |
| Dec 2018 | $21.02 | $28.90 | $17.07 | $28.09 | +38.92% | 2,863,768 |
| Nov 2018 | $19.68 | $23.07 | $15.53 | $20.22 | +6.20% | 1,129,984 |
| Oct 2018 | $25.81 | $25.81 | $18.03 | $19.04 | -25.33% | 1,543,496 |
| Sep 2018 | $22.00 | $32.88 | $22.00 | $25.50 | +15.70% | 4,706,798 |
| Aug 2018 | $14.01 | $22.12 | $13.29 | $22.04 | +57.54% | 2,006,799 |
| Jul 2018 | $17.39 | $17.73 | $13.04 | $13.99 | -19.37% | 1,167,268 |
| Jun 2018 | $17.85 | $21.00 | $16.61 | $17.35 | +1.40% | 2,158,790 |
| May 2018 | $24.45 | $24.64 | $16.54 | $17.11 | – | 3,073,167 |
Seasonality
KNSA return in each calendar month over the last 9 years, including dividends. The current month runs to the latest close.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average | 0.6% | 4.7% | -4.2% | 2.8% | -0.8% | 8.2% | 6.5% | 3.5% | 0.4% | -7.0% | 19.3% | 2.9% |
| Months up | 4 of 8 | 6 of 8 | 3 of 8 | 3 of 8 | 5 of 8 | 7 of 9 | 6 of 9 | 5 of 9 | 4 of 9 | 2 of 9 | 7 of 8 | 4 of 8 |
| 2026 | 6.5% | 1.3% | 8.2% | 11.7% | -10.0% | 32.2% | 16.2% | 5.8% | -5.1% | 23.6% | ||
| 2025 | -0.9% | 3.5% | 9.5% | 21.4% | 1.4% | 1.1% | 9.4% | 10.7% | 15.9% | -4.7% | 14.9% | -3.0% |
| 2024 | 0.5% | 19.9% | -6.7% | -5.1% | 1.5% | -1.8% | 42.5% | 0.5% | -6.5% | -9.6% | -2.3% | -10.4% |
| 2023 | -3.5% | -11.1% | -16.3% | -0.1% | 28.9% | 1.6% | 33.8% | -8.5% | 0.8% | -12.2% | 6.0% | 8.5% |
| 2022 | -4.6% | -8.8% | -2.9% | -6.1% | -17.9% | 26.5% | 2.3% | 18.3% | 9.6% | -11.1% | 47.4% | -11.0% |
| 2021 | 11.4% | 4.5% | -10.0% | -11.1% | -17.2% | 2.2% | 10.1% | -17.9% | -9.5% | -8.8% | 11.8% | 1.3% |
| 2020 | 33.0% | 25.5% | -16.1% | 28.9% | 4.6% | 22.1% | -23.4% | -9.5% | -13.3% | 2.2% | 19.2% | -5.3% |
| 2019 | -37.7% | 2.6% | 0.6% | -17.3% | 2.1% | -11.2% | -12.9% | -25.2% | -3.6% | -17.2% | 51.1% | 3.8% |
| 2018 | 1.4% | -19.4% | 57.5% | 15.7% | -25.3% | 6.2% | 38.9% |