TSX:ATSX Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
May 12, 2026	42.96	42.96	42.96	42.96	42.96	-0.60%	125
May 11, 2026	43.41	43.41	43.22	43.22	43.22	1.46%	800
May 6, 2026	42.60	42.60	42.60	42.60	42.60	-	1,034
May 1, 2026	42.59	42.60	42.59	42.60	42.60	0.05%	318
Apr 30, 2026	42.44	42.58	42.44	42.58	42.58	1.48%	363
Apr 29, 2026	41.96	41.96	41.96	41.96	41.96	-0.10%	101
Apr 28, 2026	41.95	42.00	41.95	42.00	42.00	0.48%	201
Apr 21, 2026	41.90	41.90	41.80	41.80	41.80	-0.21%	476
Apr 17, 2026	41.96	41.96	41.89	41.89	41.89	0.29%	601
Apr 15, 2026	42.57	42.57	41.77	41.77	41.77	-2.32%	644
Apr 13, 2026	42.76	42.76	42.76	42.76	42.76	3.21%	1,013
Apr 6, 2026	41.43	41.43	41.43	41.43	41.43	0.56%	160
Mar 31, 2026	40.68	41.20	40.68	41.20	41.20	3.41%	1,144
Mar 30, 2026	39.84	39.84	39.84	39.84	39.84	0.78%	500
Mar 26, 2026	39.53	39.53	39.53	39.53	39.53	-1.59%	100
Mar 25, 2026	40.17	40.17	40.17	40.17	40.17	1.16%	1,154
Mar 23, 2026	39.71	39.71	39.71	39.71	39.71	1.64%	200
Mar 19, 2026	39.07	39.07	39.07	39.07	39.07	-4.59%	1,500
Mar 17, 2026	40.95	40.95	40.95	40.95	40.95	0.07%	205
Mar 16, 2026	40.92	40.92	40.92	40.92	40.92	1.56%	200
Mar 13, 2026	40.25	40.29	40.25	40.29	40.29	-1.42%	780
Mar 12, 2026	40.87	40.87	40.87	40.87	40.87	0.37%	153
Mar 11, 2026	40.72	40.72	40.72	40.72	40.72	1.42%	160
Mar 9, 2026	40.15	40.15	40.15	40.15	40.15	-1.83%	450
Mar 6, 2026	41.00	41.00	40.90	40.90	40.90	-2.46%	376
Mar 4, 2026	41.93	41.93	41.93	41.93	41.93	-1.71%	300
Mar 3, 2026	42.66	42.66	42.66	42.66	42.66	-0.56%	299
Mar 2, 2026	42.90	42.90	42.90	42.90	42.90	-	360
Feb 27, 2026	42.90	42.90	42.90	42.90	42.90	1.13%	210
Feb 26, 2026	42.42	42.42	42.42	42.42	42.42	0.62%	100
Feb 24, 2026	42.06	42.16	42.00	42.16	42.16	-1.13%	600
Feb 23, 2026	42.65	42.65	42.64	42.64	42.64	2.85%	411
Feb 19, 2026	41.46	41.46	41.46	41.46	41.46	2.67%	178
Feb 10, 2026	40.38	40.38	40.38	40.38	40.38	2.23%	28,354
Feb 4, 2026	39.50	39.50	39.50	39.50	39.50	-0.45%	202
Feb 3, 2026	39.68	39.68	39.68	39.68	39.68	4.01%	325
Jan 30, 2026	39.06	39.06	38.08	38.15	38.15	-5.22%	301
Jan 29, 2026	40.25	40.25	40.25	40.25	40.25	0.07%	162
Jan 28, 2026	40.22	40.22	40.22	40.22	40.22	0.42%	118
Jan 23, 2026	40.05	40.05	40.05	40.05	40.05	0.53%	15,000
Jan 21, 2026	39.72	39.84	39.72	39.84	39.84	-0.90%	278
Jan 19, 2026	40.20	40.20	40.20	40.20	40.20	0.98%	100
Jan 16, 2026	40.00	40.00	39.76	39.81	39.81	1.74%	2,584
Jan 9, 2026	39.13	39.13	39.13	39.13	39.13	1.22%	200
Jan 8, 2026	38.66	38.66	38.66	38.66	38.66	0.31%	101
Jan 7, 2026	38.54	38.54	38.54	38.54	38.54	0.39%	100
Jan 5, 2026	38.39	38.39	38.39	38.39	38.39	2.21%	200
Jan 2, 2026	37.56	37.56	37.56	37.56	37.56	-1.39%	100
Dec 31, 2025	38.09	38.09	38.09	38.09	38.09	-0.76%	134
Dec 24, 2025	38.35	38.38	38.35	38.38	38.38	1.11%	200