Sionna Therapeutics, Inc. (SION)

NASDAQ: SION · Real-Time Price · USD

44.23

+0.92 (2.12%)

At close: May 8, 2026, 4:00 PM EDT

44.01

-0.22 (-0.50%)

After-hours: May 8, 2026, 7:39 PM EDT

Sionna Therapeutics Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
May 8, 2026	43.93	45.10	43.36	44.23	44.23	2.12%	382,371
May 7, 2026	43.35	45.80	42.33	43.31	43.31	0.05%	777,035
May 6, 2026	41.15	43.86	40.43	43.29	43.29	5.66%	311,280
May 5, 2026	41.53	43.73	40.42	40.97	40.97	1.29%	320,914
May 4, 2026	38.64	41.45	38.64	40.45	40.45	3.32%	341,465
May 1, 2026	38.57	40.30	38.07	39.15	39.15	1.16%	212,500
Apr 30, 2026	37.82	38.92	37.67	38.70	38.70	3.39%	241,674
Apr 29, 2026	39.01	40.30	36.50	37.43	37.43	-5.46%	317,656
Apr 28, 2026	39.68	41.15	38.58	39.59	39.59	0.97%	393,867
Apr 27, 2026	38.02	42.21	37.97	39.21	39.21	2.89%	623,684
Apr 24, 2026	38.35	38.61	35.10	38.11	38.11	-0.63%	514,180
Apr 23, 2026	43.08	44.12	37.80	38.35	38.35	-11.23%	448,904
Apr 22, 2026	41.81	43.63	41.72	43.20	43.20	3.37%	363,351
Apr 21, 2026	43.01	43.41	41.34	41.79	41.79	-1.99%	353,329
Apr 20, 2026	43.54	44.71	41.98	42.64	42.64	-2.07%	447,997
Apr 17, 2026	46.13	46.46	43.31	43.54	43.54	-3.76%	508,774
Apr 16, 2026	44.41	46.06	42.86	45.24	45.24	0.33%	817,605
Apr 15, 2026	44.23	46.10	42.62	45.09	45.09	4.13%	768,535
Apr 14, 2026	41.86	44.71	41.12	43.30	43.30	3.66%	900,047
Apr 13, 2026	37.95	41.84	36.91	41.77	41.77	10.24%	382,801
Apr 10, 2026	38.82	38.82	36.24	37.89	37.89	-2.57%	223,063
Apr 9, 2026	36.75	40.04	36.73	38.89	38.89	5.25%	352,447
Apr 8, 2026	38.36	38.37	36.18	36.95	36.95	0.52%	253,238
Apr 7, 2026	37.15	38.61	35.39	36.76	36.76	-1.66%	373,447
Apr 6, 2026	40.09	40.43	37.28	37.38	37.38	-7.68%	191,854
Apr 2, 2026	40.79	42.62	40.19	40.49	40.49	-1.96%	527,753
Apr 1, 2026	40.16	42.30	40.00	41.30	41.30	3.02%	516,346
Mar 31, 2026	37.49	41.61	37.49	40.09	40.09	9.36%	563,524
Mar 30, 2026	36.18	37.76	35.36	36.66	36.66	1.38%	344,230
Mar 27, 2026	37.04	38.22	36.01	36.16	36.16	-4.74%	497,922
Mar 26, 2026	37.43	38.71	35.93	37.96	37.96	2.37%	273,830
Mar 25, 2026	34.95	38.20	34.95	37.08	37.08	6.67%	285,592
Mar 24, 2026	35.81	36.18	33.65	34.76	34.76	-4.58%	259,578
Mar 23, 2026	36.99	38.29	35.64	36.43	36.43	0.11%	346,522
Mar 20, 2026	35.45	37.41	34.81	36.39	36.39	2.54%	339,158
Mar 19, 2026	34.16	36.17	33.20	35.49	35.49	3.17%	218,953
Mar 18, 2026	35.57	36.42	34.02	34.40	34.40	-4.02%	295,983
Mar 17, 2026	37.17	37.74	34.35	35.84	35.84	-3.58%	243,661
Mar 16, 2026	37.65	39.03	36.59	37.17	37.17	-0.40%	362,382
Mar 13, 2026	36.68	37.95	36.21	37.32	37.32	1.74%	320,341
Mar 12, 2026	37.63	37.87	34.63	36.68	36.68	-4.43%	202,264
Mar 11, 2026	37.63	39.00	37.63	38.38	38.38	0.79%	186,420
Mar 10, 2026	37.63	39.17	37.60	38.08	38.08	1.47%	255,408
Mar 9, 2026	35.58	38.06	35.58	37.53	37.53	4.45%	318,204
Mar 6, 2026	32.85	36.23	32.77	35.93	35.93	3.96%	310,437
Mar 5, 2026	34.13	34.87	32.72	34.56	34.56	-0.03%	611,706
Mar 4, 2026	34.19	35.93	33.61	34.57	34.57	1.41%	207,960
Mar 3, 2026	33.92	34.77	32.61	34.09	34.09	0.50%	220,187
Mar 2, 2026	32.89	35.10	32.57	33.92	33.92	-7.17%	276,038
Feb 27, 2026	37.25	38.32	36.24	36.54	36.54	-3.84%	183,148