COSCIENS Biopharma Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Oct 27, 2025	2.53	2.53	2.50	2.50	2.50	-1.57%	626
Oct 24, 2025	2.54	2.54	2.53	2.54	2.54	1.60%	4,503
Oct 23, 2025	2.50	2.50	2.50	2.50	2.50	-2.57%	727
Oct 21, 2025	2.57	2.57	2.57	2.57	2.57	-2.06%	617
Oct 20, 2025	2.62	2.62	2.62	2.62	2.62	-	345
Oct 17, 2025	2.57	2.62	2.57	2.62	2.62	1.95%	2,332
Oct 16, 2025	2.55	2.57	2.55	2.57	2.57	5.76%	1,677
Oct 15, 2025	2.54	2.54	2.43	2.43	2.43	-4.71%	1,600
Oct 14, 2025	2.54	2.55	2.53	2.55	2.55	2.82%	1,811
Oct 13, 2025	2.56	2.56	2.48	2.48	2.48	-2.75%	943
Oct 10, 2025	2.55	2.55	2.46	2.55	2.55	0.79%	1,857
Oct 9, 2025	2.58	2.63	2.52	2.53	2.53	-2.88%	2,121
Oct 8, 2025	2.61	2.61	2.61	2.61	2.61	2.16%	492
Oct 7, 2025	2.55	2.55	2.55	2.55	2.55	-5.13%	289
Oct 6, 2025	2.65	2.69	2.65	2.69	2.69	-0.55%	388
Oct 3, 2025	2.62	2.70	2.62	2.70	2.70	3.56%	882
Oct 2, 2025	2.62	2.62	2.61	2.61	2.61	-0.38%	857
Oct 1, 2025	2.62	2.62	2.62	2.62	2.62	6.07%	336
Sep 30, 2025	2.62	2.62	2.47	2.47	2.47	-6.58%	1,749
Sep 29, 2025	2.61	2.64	2.61	2.64	2.64	0.04%	1,107
Sep 26, 2025	2.64	2.64	2.64	2.64	2.64	7.44%	404
Sep 25, 2025	2.46	2.46	2.45	2.46	2.46	2.50%	1,211
Sep 24, 2025	2.63	2.66	2.40	2.40	2.40	-9.77%	3,277
Sep 23, 2025	2.65	2.66	2.65	2.66	2.66	1.53%	1,294
Sep 22, 2025	2.62	2.62	2.59	2.62	2.62	1.95%	1,206
Sep 19, 2025	2.57	2.57	2.57	2.57	2.57	0.78%	493
Sep 18, 2025	2.58	2.58	2.55	2.55	2.55	-1.92%	968
Sep 17, 2025	2.65	2.65	2.24	2.60	2.60	-1.52%	2,472
Sep 16, 2025	2.64	2.65	2.63	2.64	2.64	-	2,289
Sep 15, 2025	2.60	2.64	2.60	2.64	2.64	1.54%	667
Sep 12, 2025	2.58	2.60	2.56	2.60	2.60	1.56%	2,226
Sep 11, 2025	2.56	2.58	2.56	2.56	2.56	-	1,748
Sep 10, 2025	2.56	2.56	2.56	2.56	2.56	-1.54%	418
Sep 9, 2025	2.59	2.60	2.59	2.60	2.60	4.00%	4,501
Sep 8, 2025	2.50	2.50	2.40	2.50	2.50	4.17%	2,696
Sep 5, 2025	2.49	2.65	2.40	2.40	2.40	-2.04%	2,435
Sep 4, 2025	2.00	2.75	2.00	2.45	2.45	-9.93%	32,302
Sep 3, 2025	2.96	2.98	2.50	2.72	2.72	-11.69%	58,613
Sep 2, 2025	3.04	3.16	2.97	3.08	3.08	1.32%	3,223
Aug 29, 2025	3.10	3.10	3.01	3.04	3.04	-3.98%	3,007
Aug 28, 2025	3.08	3.30	3.03	3.17	3.17	0.99%	5,904
Aug 27, 2025	3.20	3.47	2.97	3.14	3.14	4.50%	36,582
Aug 26, 2025	2.95	3.22	2.93	3.00	3.00	2.39%	8,904
Aug 25, 2025	3.27	3.48	2.90	2.93	2.93	-10.89%	113,601
Aug 22, 2025	2.65	3.29	2.55	3.29	3.29	21.78%	93,792
Aug 21, 2025	2.76	2.78	2.56	2.70	2.70	-2.88%	5,993
Aug 20, 2025	2.80	2.80	2.78	2.78	2.78	5.70%	3,551
Aug 19, 2025	2.89	2.89	2.62	2.63	2.63	-9.00%	14,774
Aug 18, 2025	2.89	2.91	2.70	2.89	2.89	1.40%	7,116
Aug 15, 2025	3.10	3.46	2.82	2.85	2.85	-18.57%	42,387