Kiniksa Pharmaceuticals International, plc (KNSA) NASDAQ

Currency In USD

KNSA Historical Return

If you invested $1000 in Kiniksa Pharmaceuticals, Ltd. (KNSA) since IPO date, it would be worth $3,917.31 as of September 12, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $6,155.77, while $1000 invested 1 year ago would be worth $2,055.8. This corresponds to total returns of 291.73%, 515.58%, 105.58%, respectively, with annualized returns of 17.86%, 43.83%, 105.58%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

KNSA Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
September 11, 2026	77.7	76.27	76.27	78.59	76.14	358,022
September 10, 2026	77.66	76.48	76.48	78.42	75.99	459,651
September 09, 2026	78.72	78.52	78.52	80.22	77.33	587,896
September 08, 2026	76.25	77.09	77.09	78.5	75	668,456
September 04, 2026	79.75	77.91	77.91	80.43	77.9	429,616
September 03, 2026	80.3	80.47	80.47	81.41	78.84	620,809
September 02, 2026	79.53	79.89	79.89	80.18	77.86	568,428
September 01, 2026	78.29	79.28	79.28	79.55	77.86	386,959
August 31, 2026	78	78.63	78.63	78.96	76.65	420,218
August 28, 2026	79.6	78.08	78.08	79.81	77.71	427,247
August 27, 2026	78.2	79.8	79.8	80.79	77.8	413,253
August 26, 2026	79.65	78.68	78.68	80.26	78.35	383,691
August 25, 2026	79.36	80.2	80.2	80.86	79.13	402,049
August 24, 2026	79.5	79.38	79.38	79.98	77.71	418,629
August 21, 2026	78.28	79.03	79.03	79.93	78.01	270,110
August 20, 2026	79.43	78.47	78.47	80.12	77.64	491,118
August 19, 2026	80.5	80.8	80.8	81.57	79.27	820,208
August 18, 2026	78.85	79.49	79.49	79.86	78.77	367,321
August 17, 2026	76.89	79.18	79.18	79.22	76.75	320,585
August 14, 2026	77.32	76.75	76.75	77.51	75.3	403,394
August 13, 2026	78.65	77.83	77.83	79.69	77.19	451,320
August 12, 2026	77.37	78.15	78.15	79.79	76.92	527,662
August 11, 2026	76.67	77.8	77.8	78.25	75.72	350,550
August 10, 2026	76.05	76.53	76.53	77.78	75	264,468
August 07, 2026	77.66	76.06	76.06	77.82	75.52	219,775
August 06, 2026	77.88	76.51	76.51	78.8	75.74	353,066
August 05, 2026	76.91	78.08	78.08	78.24	76.12	531,193
August 04, 2026	75.14	75.99	75.99	76.91	73.04	661,754
August 03, 2026	73.89	73.41	73.41	75.44	71.42	785,168
July 31, 2026	77.66	74.34	74.34	78.04	73.65	1.03M
July 30, 2026	79.4	78.2	78.2	80.51	77.74	946,307
July 29, 2026	81.43	80.92	80.92	82.94	77.57	1.38M
July 28, 2026	70.06	79.44	79.44	81.97	67.35	2.87M
July 27, 2026	62.96	63.54	63.54	64.85	62.79	834,306
July 24, 2026	63.35	62.84	62.84	63.39	62.31	619,930
July 23, 2026	62.36	63.05	63.05	63.29	61.81	321,637
July 22, 2026	63.23	62.44	62.44	63.82	61.6	328,321
July 21, 2026	62.48	63.55	63.55	63.87	62.48	489,211
July 20, 2026	63.6	62.58	62.58	65	62.13	520,535
July 17, 2026	60.09	63.95	63.95	64.63	60.07	712,329
July 16, 2026	61.5	61.11	61.11	61.71	60.26	473,874
July 15, 2026	61.29	61.69	61.69	62.2	60.54	372,926
July 14, 2026	60.94	61.98	61.98	62.76	60.13	549,508
July 13, 2026	63.43	60.94	60.94	63.64	60.89	586,017
July 10, 2026	65.16	63.44	63.44	65.71	62.6	443,133
July 09, 2026	64.76	65.38	65.38	66.16	63.71	743,995
July 08, 2026	67.22	64.76	64.76	67.5	63.26	1.05M
July 07, 2026	63.3	67.29	67.29	67.53	63.03	946,846
July 06, 2026	64.43	62.77	62.77	65.16	62.73	629,877
July 02, 2026	62.86	64.53	64.53	64.57	62.04	606,561
July 01, 2026	63.64	62.89	62.89	64.09	62.56	668,879
June 30, 2026	62.41	63.95	63.95	64.81	61.6	1.3M
June 29, 2026	60.35	62.41	62.41	63.77	59.12	1.51M
June 26, 2026	57.42	59.2	59.2	59.77	56.56	6.67M
June 25, 2026	58.84	56.89	56.89	59.73	56.86	675,087
June 24, 2026	59.41	59.13	59.13	61.12	58.54	1.05M
June 23, 2026	57	59.49	59.49	59.94	56.5	771,325
June 22, 2026	55.69	57.13	57.13	57.81	55.69	608,165
June 18, 2026	55	55.11	55.11	55.99	54.33	776,737
June 17, 2026	52.68	54.21	54.21	54.24	52.68	644,712