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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 week, newest first. Adjusted for stock splits, not for dividends.

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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
Week ofOpenHighLowCloseChangeVolume
Oct 26, 2026$76.00$98.48$70.67$92.24+20.21%8,161,927
Oct 19, 2026$78.78$84.06$76.58$76.73-2.37%3,684,571
Oct 12, 2026$80.00$82.98$76.88$78.59-1.49%3,503,544
Oct 5, 2026$75.97$80.50$73.84$79.78+5.26%1,993,146
Sep 28, 2026$75.00$76.55$73.14$75.79+0.95%3,260,324
Sep 21, 2026$77.12$79.54$74.46$75.08-2.80%2,207,655
Sep 14, 2026$77.89$79.76$74.47$77.24+1.27%3,469,107
Sep 8, 2026$76.25$80.22$75.00$76.27-2.10%2,302,084
Aug 31, 2026$78.00$81.41$76.65$77.91-0.22%2,448,744
Aug 24, 2026$79.50$80.86$77.71$78.08-1.20%2,045,504
Aug 17, 2026$76.89$81.57$76.75$79.03+2.97%2,385,560
Aug 10, 2026$76.05$79.79$75.00$76.75+0.91%1,998,186
Aug 3, 2026$73.89$78.80$71.42$76.06+2.31%2,551,731
Jul 27, 2026$62.96$82.94$62.79$74.34+18.30%7,071,952
Jul 20, 2026$63.60$65.00$61.60$62.84-1.74%2,280,046
Jul 13, 2026$63.43$64.63$60.07$63.95+0.80%2,700,930
Jul 6, 2026$64.43$67.53$62.60$63.44-1.69%3,834,228
Jun 29, 2026$60.35$64.81$59.12$64.53+9.00%4,196,136
Jun 22, 2026$55.69$61.12$55.69$59.20+7.42%9,872,400
Jun 15, 2026$51.75$55.99$51.08$55.11+6.21%2,426,709
Jun 8, 2026$48.80$52.48$47.95$51.89+7.17%2,415,991
Jun 1, 2026$47.84$50.48$46.10$48.42+0.08%2,707,514
May 26, 2026$53.24$53.63$48.06$48.38-9.13%2,373,057
May 18, 2026$56.95$57.01$52.31$53.24-5.79%2,624,747
May 11, 2026$58.98$59.87$56.22$56.51-3.57%2,171,455
May 4, 2026$54.97$58.85$54.45$58.60+6.02%3,185,340
Apr 27, 2026$42.67$55.28$42.61$55.27+29.17%7,484,505
Apr 20, 2026$44.77$44.86$41.49$42.79-4.70%4,207,760
Apr 13, 2026$47.35$48.46$44.74$44.90-4.63%3,433,157
Apr 6, 2026$48.58$50.03$44.40$47.08-3.56%3,004,744
Mar 30, 2026$45.59$49.33$44.76$48.82+6.71%1,859,640
Mar 23, 2026$46.36$47.17$44.43$45.75-0.72%2,879,560
Mar 16, 2026$45.75$47.83$44.36$46.08+0.66%3,560,486
Mar 9, 2026$45.87$47.41$44.45$45.78-0.82%3,012,162
Mar 2, 2026$44.13$47.46$43.33$46.16+3.75%4,469,889
Feb 23, 2026$47.78$49.12$41.12$44.49-6.87%4,554,367
Feb 17, 2026$44.97$47.86$43.55$47.77+5.29%1,908,781
Feb 9, 2026$43.15$46.65$42.00$45.37+5.29%1,963,822
Feb 2, 2026$43.65$45.50$41.98$43.09-1.89%1,989,704
Jan 26, 2026$42.09$45.00$41.50$43.92+4.08%3,263,387
Jan 20, 2026$38.79$43.00$38.40$42.20+7.08%3,336,239
Jan 12, 2026$42.59$43.00$37.02$39.41-7.64%4,215,536
Jan 5, 2026$41.82$43.55$39.16$42.67+1.58%3,200,327
Dec 29, 2025$41.87$42.90$40.52$42.01+0.01%1,523,519
Dec 22, 2025$43.00$44.42$41.65$42.00-2.76%1,110,425
Dec 15, 2025$41.65$43.73$40.77$43.19+3.85%3,008,552
Dec 8, 2025$42.08$42.32$40.05$41.59-0.19%2,145,306
Dec 1, 2025$42.33$42.53$39.61$41.67-2.00%1,490,844
Nov 24, 2025$41.74$42.98$40.76$42.52+2.26%1,552,834
Nov 17, 2025$40.00$42.93$39.61$41.58+3.13%1,652,958
Nov 10, 2025$39.71$41.27$38.57$40.32+5.08%1,473,220
Nov 3, 2025$37.02$39.66$36.56$38.37+3.67%2,039,419

Seasonality

KNSA return in each calendar month over the last 9 years, including dividends. The current month runs to the latest close.

YearJanFebMarAprMayJunJulAugSepOctNovDec
Average0.6%4.7%-4.2%2.8%-0.8%8.2%6.5%3.5%0.4%-7.0%19.3%2.9%
Months up4 of 86 of 83 of 83 of 85 of 87 of 96 of 95 of 94 of 92 of 97 of 84 of 8
20266.5%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%
20240.5%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%
202111.4%4.5%-10.0%-11.1%-17.2%2.2%10.1%-17.9%-9.5%-8.8%11.8%1.3%
202033.0%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%
20181.4%-19.4%57.5%15.7%-25.3%6.2%38.9%